diff --git a/.build/checkouts/swift-collections b/.build/checkouts/swift-collections
new file mode 160000
index 0000000..8c0c0a8
--- /dev/null
+++ b/.build/checkouts/swift-collections
@@ -0,0 +1 @@
+Subproject commit 8c0c0a8b49e080e54e5e328cc552821ff07cd341
diff --git a/.build/repositories/swift-collections-9a58d5cf/FETCH_HEAD b/.build/repositories/swift-collections-9a58d5cf/FETCH_HEAD
new file mode 100644
index 0000000..11af823
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/FETCH_HEAD
@@ -0,0 +1,403 @@
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+f148614d5d4c87cb2a46e674ddfedfbe9899e018	not-for-merge	'refs/pull/438/merge' of https://github.com/apple/swift-collections
+117c81053b70de031bac51b53288c001662c9305	not-for-merge	'refs/pull/44/head' of https://github.com/apple/swift-collections
+4450b7c62274bc08f21b94269e0316e2799afe90	not-for-merge	'refs/pull/445/head' of https://github.com/apple/swift-collections
+99db3179fcfab1add1a2418ed5f5392f25156aa0	not-for-merge	'refs/pull/446/head' of https://github.com/apple/swift-collections
+40adeb7fd7e86a3d84779a2c43c2211ae805b804	not-for-merge	'refs/pull/447/head' of https://github.com/apple/swift-collections
+1cb3ca50a63e8eac9dc503b3fba69ef56a99bce2	not-for-merge	'refs/pull/449/head' of https://github.com/apple/swift-collections
+0f73f0ace74ea44f39ab10f23a3d2c03afd54a8f	not-for-merge	'refs/pull/450/head' of https://github.com/apple/swift-collections
+7ae9880f0fb622992a8a5328fd4af78af5b6b26f	not-for-merge	'refs/pull/451/head' of https://github.com/apple/swift-collections
+c5ac12e2bc1ad8df1df0ee9d1236ab6366a2c32d	not-for-merge	'refs/pull/452/head' of https://github.com/apple/swift-collections
+cfbebf4c80d0bc18609e7d603366f384dbdc8ef3	not-for-merge	'refs/pull/453/head' of https://github.com/apple/swift-collections
+dbc2866bb5f564d3be3fa5efdda769f2946ee968	not-for-merge	'refs/pull/454/head' of https://github.com/apple/swift-collections
+225159599d37106d63795d2df1bcbe0ccf7b3479	not-for-merge	'refs/pull/455/head' of https://github.com/apple/swift-collections
+25509c0b883738629b6a13c013b6274538112fbe	not-for-merge	'refs/pull/456/head' of https://github.com/apple/swift-collections
+c42b4d1ebc5d198401f3efbcda36874b987e29d4	not-for-merge	'refs/pull/457/head' of https://github.com/apple/swift-collections
+fd9ee69e0ba4e389a5ecdd85822a0932b0496e3c	not-for-merge	'refs/pull/458/head' of https://github.com/apple/swift-collections
+769bc7b07c3b986d928540d74d53bdd3d73f4374	not-for-merge	'refs/pull/459/head' of https://github.com/apple/swift-collections
+ca939f84e132eb64a44db49c8092c8ec261b3092	not-for-merge	'refs/pull/46/head' of https://github.com/apple/swift-collections
+75837a77174c0dd3243a599fae8c1675c64860d1	not-for-merge	'refs/pull/460/head' of https://github.com/apple/swift-collections
+3fffe2ad2062eabe93dddb4d2e37bffe9bf278dc	not-for-merge	'refs/pull/461/head' of https://github.com/apple/swift-collections
+fea1d24e7be3284646858ef7bc9950f685adaa61	not-for-merge	'refs/pull/462/head' of https://github.com/apple/swift-collections
+b765db28be0063341ef9048a8c4f6efb8b0e4cbd	not-for-merge	'refs/pull/463/head' of https://github.com/apple/swift-collections
+6385ebbe4d5fd7235dca833a4b041b14f06d46cf	not-for-merge	'refs/pull/464/head' of https://github.com/apple/swift-collections
+7ec497fb53a8d0a680576f1e0b0781fb71c99429	not-for-merge	'refs/pull/47/head' of https://github.com/apple/swift-collections
+a7fec81fc4c4af5e49d2ce19f3b39ef51202fd22	not-for-merge	'refs/pull/470/head' of https://github.com/apple/swift-collections
+117a1aad2d8194b8632bb46483573bb0b7aa50f1	not-for-merge	'refs/pull/471/head' of https://github.com/apple/swift-collections
+0bd8dec08b8bb484f4a39e8d241a40c8e0c8a051	not-for-merge	'refs/pull/472/head' of https://github.com/apple/swift-collections
+d5f3b81e690242c750deb4ede721539250297bd6	not-for-merge	'refs/pull/473/head' of https://github.com/apple/swift-collections
+c25a388c1375c634d42a6f5608a863a4b6aace2c	not-for-merge	'refs/pull/474/head' of https://github.com/apple/swift-collections
+a09d7cdf458769f6f9586a2782b03d624d710428	not-for-merge	'refs/pull/475/head' of https://github.com/apple/swift-collections
+e1be57c0f55f90d9489773dec69449bd86fce692	not-for-merge	'refs/pull/476/head' of https://github.com/apple/swift-collections
+1812091001b264fc9b0db6a4b847ef9b330f5fd4	not-for-merge	'refs/pull/478/head' of https://github.com/apple/swift-collections
+e337c2b936320f538fc8b9e8b66d51bff56646e4	not-for-merge	'refs/pull/479/head' of https://github.com/apple/swift-collections
+137bd464c14792cadc721d90afd412c2e7735424	not-for-merge	'refs/pull/48/head' of https://github.com/apple/swift-collections
+6819c6d1491caf6819649a0635d35956700cd165	not-for-merge	'refs/pull/480/head' of https://github.com/apple/swift-collections
+c50c57f52eaae3f241dd3a4338d05f199d0bd94d	not-for-merge	'refs/pull/481/head' of https://github.com/apple/swift-collections
+83457e19c8b17548bf30f43bdfe7563cc6621633	not-for-merge	'refs/pull/482/head' of https://github.com/apple/swift-collections
+d5568ee899f3b9487cf752cb28027910f84aad46	not-for-merge	'refs/pull/483/head' of https://github.com/apple/swift-collections
+65f99e3eff346e5033d9ac9310021a4ff55a9a64	not-for-merge	'refs/pull/485/head' of https://github.com/apple/swift-collections
+fc411858ee8c2d1ca4113555c185752f5d8212f5	not-for-merge	'refs/pull/486/head' of https://github.com/apple/swift-collections
+05ad8633a8d6e407bd9dfce36da47b3fe36b3da2	not-for-merge	'refs/pull/487/head' of https://github.com/apple/swift-collections
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+0b963fe790c694a35c34b2b31caa84a681f74945	not-for-merge	'refs/pull/62/head' of https://github.com/apple/swift-collections
+cfe64fa1f270ff99ae4c5bf36502656d5c77596f	not-for-merge	'refs/pull/63/head' of https://github.com/apple/swift-collections
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+8de85365808b3d984148d0adb5dc36125a71c36f	not-for-merge	'refs/pull/8/head' of https://github.com/apple/swift-collections
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+8ef7b779cd17e95baeef138a612c48b063036aca	not-for-merge	'refs/pull/87/head' of https://github.com/apple/swift-collections
+ace0073826e3e2bdc1b08d78e6fe6f1efc700aab	not-for-merge	'refs/pull/9/head' of https://github.com/apple/swift-collections
+e78605942c7fb08c3e8812a166e85bcae2ddd15e	not-for-merge	'refs/pull/91/head' of https://github.com/apple/swift-collections
+7c68b05ed94391100c1933770cd18e95533bd53d	not-for-merge	'refs/pull/92/head' of https://github.com/apple/swift-collections
+d6774be62f7f857f0b30dae49a3a6f02b58e5679	not-for-merge	'refs/pull/93/head' of https://github.com/apple/swift-collections
+6192ad1fc8795b647f8fb9eec20257ae2cb4716d	not-for-merge	'refs/pull/95/head' of https://github.com/apple/swift-collections
+dcdd7ebabbdcac6442e45db68f6e3d10b96f0c88	not-for-merge	'refs/pull/96/head' of https://github.com/apple/swift-collections
+41bfaaae0af3809b808405df0fab4a5e02ddd206	not-for-merge	'refs/pull/97/head' of https://github.com/apple/swift-collections
+462fb1d3fc318f4e1f81d6945b87f1dc32dd8079	not-for-merge	'refs/pull/98/head' of https://github.com/apple/swift-collections
+c1c9541a3b91ec076076ad8e9a4e28a00b80cb6b	not-for-merge	'refs/pull/99/head' of https://github.com/apple/swift-collections
+bd924007a25488900d2e3f3437a0388a97636020	not-for-merge	tag '0.0.1' of https://github.com/apple/swift-collections
+2d719d75a2065f213e58a5164384a3d2fcf9b59a	not-for-merge	tag '0.0.2' of https://github.com/apple/swift-collections
+d45e63421d3dff834949ac69d3c37691e994bd69	not-for-merge	tag '0.0.3' of https://github.com/apple/swift-collections
+3426dba9ee5c9f8e4981b0fc9d39a818d36eec28	not-for-merge	tag '0.0.4' of https://github.com/apple/swift-collections
+0959ba76a1d4a98fd11163aa83fd49c25b93bfae	not-for-merge	tag '0.0.5' of https://github.com/apple/swift-collections
+9d8719c8bebdc79740b6969c912ac706eb721d7a	not-for-merge	tag '0.0.7' of https://github.com/apple/swift-collections
+07e47b1e93e5a1e0ef0c50fcb2d6739fb6be4003	not-for-merge	tag '1.0.0' of https://github.com/apple/swift-collections
+2d33a0ea89c961dcb2b3da2157963d9c0370347e	not-for-merge	tag '1.0.1' of https://github.com/apple/swift-collections
+48254824bb4248676bf7ce56014ff57b142b77eb	not-for-merge	tag '1.0.2' of https://github.com/apple/swift-collections
+f504716c27d2e5d4144fa4794b12129301d17729	not-for-merge	tag '1.0.3' of https://github.com/apple/swift-collections
+937e904258d22af6e447a0b72c0bc67583ef64a2	not-for-merge	tag '1.0.4' of https://github.com/apple/swift-collections
+a902f1823a7ff3c9ab2fba0f992396b948eda307	not-for-merge	tag '1.0.5' of https://github.com/apple/swift-collections
+d029d9d39c87bed85b1c50adee7c41795261a192	not-for-merge	tag '1.0.6' of https://github.com/apple/swift-collections
+94cf62b3ba8d4bed62680a282d4c25f9c63c2efb	not-for-merge	tag '1.1.0' of https://github.com/apple/swift-collections
+ee97538f5b81ae89698fd95938896dec5217b148	not-for-merge	tag '1.1.1' of https://github.com/apple/swift-collections
+3d2dc41a01f9e49d84f0a3925fb858bed64f702d	not-for-merge	tag '1.1.2' of https://github.com/apple/swift-collections
+9bf03ff58ce34478e66aaee630e491823326fd06	not-for-merge	tag '1.1.3' of https://github.com/apple/swift-collections
+671108c96644956dddcd89dd59c203dcdb36cec7	not-for-merge	tag '1.1.4' of https://github.com/apple/swift-collections
+ad9f6723fd29591e6c0a19a9c4982cae51d65b1d	not-for-merge	tag '1.1.5' of https://github.com/apple/swift-collections
+c11818f3cae0780656baa430b49e7f163f08dffd	not-for-merge	tag '1.1.6' of https://github.com/apple/swift-collections
+c1805596154bb3a265fd91b8ac0c4433b4348fb0	not-for-merge	tag '1.2.0' of https://github.com/apple/swift-collections
+8c0c0a8b49e080e54e5e328cc552821ff07cd341	not-for-merge	tag '1.2.1' of https://github.com/apple/swift-collections
diff --git a/.build/repositories/swift-collections-9a58d5cf/HEAD b/.build/repositories/swift-collections-9a58d5cf/HEAD
new file mode 100644
index 0000000..b870d82
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/main
diff --git a/.build/repositories/swift-collections-9a58d5cf/config b/.build/repositories/swift-collections-9a58d5cf/config
new file mode 100644
index 0000000..e7f61ad
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/config
@@ -0,0 +1,13 @@
+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = true
+	ignorecase = true
+	precomposeunicode = true
+	symlinks = true
+	fsmonitor = false
+	longpaths = true
+[remote "origin"]
+	url = https://github.com/apple/swift-collections.git
+	fetch = +refs/*:refs/*
+	mirror = true
diff --git a/.build/repositories/swift-collections-9a58d5cf/description b/.build/repositories/swift-collections-9a58d5cf/description
new file mode 100644
index 0000000..498b267
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/description
@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/applypatch-msg.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/applypatch-msg.sample
new file mode 100755
index 0000000..a5d7b84
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/applypatch-msg.sample
@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# An example hook script to check the commit log message taken by
+# applypatch from an e-mail message.
+#
+# The hook should exit with non-zero status after issuing an
+# appropriate message if it wants to stop the commit.  The hook is
+# allowed to edit the commit message file.
+#
+# To enable this hook, rename this file to "applypatch-msg".
+
+. git-sh-setup
+commitmsg="$(git rev-parse --git-path hooks/commit-msg)"
+test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"}
+:
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/commit-msg.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/commit-msg.sample
new file mode 100755
index 0000000..b58d118
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/commit-msg.sample
@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# An example hook script to check the commit log message.
+# Called by "git commit" with one argument, the name of the file
+# that has the commit message.  The hook should exit with non-zero
+# status after issuing an appropriate message if it wants to stop the
+# commit.  The hook is allowed to edit the commit message file.
+#
+# To enable this hook, rename this file to "commit-msg".
+
+# Uncomment the below to add a Signed-off-by line to the message.
+# Doing this in a hook is a bad idea in general, but the prepare-commit-msg
+# hook is more suited to it.
+#
+# SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
+# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
+
+# This example catches duplicate Signed-off-by lines.
+
+test "" = "$(grep '^Signed-off-by: ' "$1" |
+	 sort | uniq -c | sed -e '/^[ 	]*1[ 	]/d')" || {
+	echo >&2 Duplicate Signed-off-by lines.
+	exit 1
+}
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/fsmonitor-watchman.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/fsmonitor-watchman.sample
new file mode 100755
index 0000000..23e856f
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/fsmonitor-watchman.sample
@@ -0,0 +1,174 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use IPC::Open2;
+
+# An example hook script to integrate Watchman
+# (https://facebook.github.io/watchman/) with git to speed up detecting
+# new and modified files.
+#
+# The hook is passed a version (currently 2) and last update token
+# formatted as a string and outputs to stdout a new update token and
+# all files that have been modified since the update token. Paths must
+# be relative to the root of the working tree and separated by a single NUL.
+#
+# To enable this hook, rename this file to "query-watchman" and set
+# 'git config core.fsmonitor .git/hooks/query-watchman'
+#
+my ($version, $last_update_token) = @ARGV;
+
+# Uncomment for debugging
+# print STDERR "$0 $version $last_update_token\n";
+
+# Check the hook interface version
+if ($version ne 2) {
+	die "Unsupported query-fsmonitor hook version '$version'.\n" .
+	    "Falling back to scanning...\n";
+}
+
+my $git_work_tree = get_working_dir();
+
+my $retry = 1;
+
+my $json_pkg;
+eval {
+	require JSON::XS;
+	$json_pkg = "JSON::XS";
+	1;
+} or do {
+	require JSON::PP;
+	$json_pkg = "JSON::PP";
+};
+
+launch_watchman();
+
+sub launch_watchman {
+	my $o = watchman_query();
+	if (is_work_tree_watched($o)) {
+		output_result($o->{clock}, @{$o->{files}});
+	}
+}
+
+sub output_result {
+	my ($clockid, @files) = @_;
+
+	# Uncomment for debugging watchman output
+	# open (my $fh, ">", ".git/watchman-output.out");
+	# binmode $fh, ":utf8";
+	# print $fh "$clockid\n@files\n";
+	# close $fh;
+
+	binmode STDOUT, ":utf8";
+	print $clockid;
+	print "\0";
+	local $, = "\0";
+	print @files;
+}
+
+sub watchman_clock {
+	my $response = qx/watchman clock "$git_work_tree"/;
+	die "Failed to get clock id on '$git_work_tree'.\n" .
+		"Falling back to scanning...\n" if $? != 0;
+
+	return $json_pkg->new->utf8->decode($response);
+}
+
+sub watchman_query {
+	my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty')
+	or die "open2() failed: $!\n" .
+	"Falling back to scanning...\n";
+
+	# In the query expression below we're asking for names of files that
+	# changed since $last_update_token but not from the .git folder.
+	#
+	# To accomplish this, we're using the "since" generator to use the
+	# recency index to select candidate nodes and "fields" to limit the
+	# output to file names only. Then we're using the "expression" term to
+	# further constrain the results.
+	my $last_update_line = "";
+	if (substr($last_update_token, 0, 1) eq "c") {
+		$last_update_token = "\"$last_update_token\"";
+		$last_update_line = qq[\n"since": $last_update_token,];
+	}
+	my $query = <<"	END";
+		["query", "$git_work_tree", {$last_update_line
+			"fields": ["name"],
+			"expression": ["not", ["dirname", ".git"]]
+		}]
+	END
+
+	# Uncomment for debugging the watchman query
+	# open (my $fh, ">", ".git/watchman-query.json");
+	# print $fh $query;
+	# close $fh;
+
+	print CHLD_IN $query;
+	close CHLD_IN;
+	my $response = do {local $/; <CHLD_OUT>};
+
+	# Uncomment for debugging the watch response
+	# open ($fh, ">", ".git/watchman-response.json");
+	# print $fh $response;
+	# close $fh;
+
+	die "Watchman: command returned no output.\n" .
+	"Falling back to scanning...\n" if $response eq "";
+	die "Watchman: command returned invalid output: $response\n" .
+	"Falling back to scanning...\n" unless $response =~ /^\{/;
+
+	return $json_pkg->new->utf8->decode($response);
+}
+
+sub is_work_tree_watched {
+	my ($output) = @_;
+	my $error = $output->{error};
+	if ($retry > 0 and $error and $error =~ m/unable to resolve root .* directory (.*) is not watched/) {
+		$retry--;
+		my $response = qx/watchman watch "$git_work_tree"/;
+		die "Failed to make watchman watch '$git_work_tree'.\n" .
+		    "Falling back to scanning...\n" if $? != 0;
+		$output = $json_pkg->new->utf8->decode($response);
+		$error = $output->{error};
+		die "Watchman: $error.\n" .
+		"Falling back to scanning...\n" if $error;
+
+		# Uncomment for debugging watchman output
+		# open (my $fh, ">", ".git/watchman-output.out");
+		# close $fh;
+
+		# Watchman will always return all files on the first query so
+		# return the fast "everything is dirty" flag to git and do the
+		# Watchman query just to get it over with now so we won't pay
+		# the cost in git to look up each individual file.
+		my $o = watchman_clock();
+		$error = $output->{error};
+
+		die "Watchman: $error.\n" .
+		"Falling back to scanning...\n" if $error;
+
+		output_result($o->{clock}, ("/"));
+		$last_update_token = $o->{clock};
+
+		eval { launch_watchman() };
+		return 0;
+	}
+
+	die "Watchman: $error.\n" .
+	"Falling back to scanning...\n" if $error;
+
+	return 1;
+}
+
+sub get_working_dir {
+	my $working_dir;
+	if ($^O =~ 'msys' || $^O =~ 'cygwin') {
+		$working_dir = Win32::GetCwd();
+		$working_dir =~ tr/\\/\//;
+	} else {
+		require Cwd;
+		$working_dir = Cwd::cwd();
+	}
+
+	return $working_dir;
+}
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/post-update.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/post-update.sample
new file mode 100755
index 0000000..ec17ec1
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/post-update.sample
@@ -0,0 +1,8 @@
+#!/bin/sh
+#
+# An example hook script to prepare a packed repository for use over
+# dumb transports.
+#
+# To enable this hook, rename this file to "post-update".
+
+exec git update-server-info
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-applypatch.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-applypatch.sample
new file mode 100755
index 0000000..4142082
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-applypatch.sample
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed
+# by applypatch from an e-mail message.
+#
+# The hook should exit with non-zero status after issuing an
+# appropriate message if it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-applypatch".
+
+. git-sh-setup
+precommit="$(git rev-parse --git-path hooks/pre-commit)"
+test -x "$precommit" && exec "$precommit" ${1+"$@"}
+:
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-commit.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-commit.sample
new file mode 100755
index 0000000..29ed5ee
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-commit.sample
@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git commit" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message if
+# it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-commit".
+
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+	against=HEAD
+else
+	# Initial commit: diff against an empty tree object
+	against=$(git hash-object -t tree /dev/null)
+fi
+
+# If you want to allow non-ASCII filenames set this variable to true.
+allownonascii=$(git config --type=bool hooks.allownonascii)
+
+# Redirect output to stderr.
+exec 1>&2
+
+# Cross platform projects tend to avoid non-ASCII filenames; prevent
+# them from being added to the repository. We exploit the fact that the
+# printable range starts at the space character and ends with tilde.
+if [ "$allownonascii" != "true" ] &&
+	# Note that the use of brackets around a tr range is ok here, (it's
+	# even required, for portability to Solaris 10's /usr/bin/tr), since
+	# the square bracket bytes happen to fall in the designated range.
+	test $(git diff-index --cached --name-only --diff-filter=A -z $against |
+	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
+then
+	cat <<\EOF
+Error: Attempt to add a non-ASCII file name.
+
+This can cause problems if you want to work with people on other platforms.
+
+To be portable it is advisable to rename the file.
+
+If you know what you are doing you can disable this check using:
+
+  git config hooks.allownonascii true
+EOF
+	exit 1
+fi
+
+# If there are whitespace errors, print the offending file names and fail.
+exec git diff-index --check --cached $against --
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-merge-commit.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-merge-commit.sample
new file mode 100755
index 0000000..399eab1
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-merge-commit.sample
@@ -0,0 +1,13 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git merge" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message to
+# stderr if it wants to stop the merge commit.
+#
+# To enable this hook, rename this file to "pre-merge-commit".
+
+. git-sh-setup
+test -x "$GIT_DIR/hooks/pre-commit" &&
+        exec "$GIT_DIR/hooks/pre-commit"
+:
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-push.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-push.sample
new file mode 100755
index 0000000..4ce688d
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-push.sample
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# An example hook script to verify what is about to be pushed.  Called by "git
+# push" after it has checked the remote status, but before anything has been
+# pushed.  If this script exits with a non-zero status nothing will be pushed.
+#
+# This hook is called with the following parameters:
+#
+# $1 -- Name of the remote to which the push is being done
+# $2 -- URL to which the push is being done
+#
+# If pushing without using a named remote those arguments will be equal.
+#
+# Information about the commits which are being pushed is supplied as lines to
+# the standard input in the form:
+#
+#   <local ref> <local oid> <remote ref> <remote oid>
+#
+# This sample shows how to prevent push of commits where the log message starts
+# with "WIP" (work in progress).
+
+remote="$1"
+url="$2"
+
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
+
+while read local_ref local_oid remote_ref remote_oid
+do
+	if test "$local_oid" = "$zero"
+	then
+		# Handle delete
+		:
+	else
+		if test "$remote_oid" = "$zero"
+		then
+			# New branch, examine all commits
+			range="$local_oid"
+		else
+			# Update to existing branch, examine new commits
+			range="$remote_oid..$local_oid"
+		fi
+
+		# Check for WIP commit
+		commit=$(git rev-list -n 1 --grep '^WIP' "$range")
+		if test -n "$commit"
+		then
+			echo >&2 "Found WIP commit in $local_ref, not pushing"
+			exit 1
+		fi
+	fi
+done
+
+exit 0
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-rebase.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-rebase.sample
new file mode 100755
index 0000000..6cbef5c
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-rebase.sample
@@ -0,0 +1,169 @@
+#!/bin/sh
+#
+# Copyright (c) 2006, 2008 Junio C Hamano
+#
+# The "pre-rebase" hook is run just before "git rebase" starts doing
+# its job, and can prevent the command from running by exiting with
+# non-zero status.
+#
+# The hook is called with the following parameters:
+#
+# $1 -- the upstream the series was forked from.
+# $2 -- the branch being rebased (or empty when rebasing the current branch).
+#
+# This sample shows how to prevent topic branches that are already
+# merged to 'next' branch from getting rebased, because allowing it
+# would result in rebasing already published history.
+
+publish=next
+basebranch="$1"
+if test "$#" = 2
+then
+	topic="refs/heads/$2"
+else
+	topic=`git symbolic-ref HEAD` ||
+	exit 0 ;# we do not interrupt rebasing detached HEAD
+fi
+
+case "$topic" in
+refs/heads/??/*)
+	;;
+*)
+	exit 0 ;# we do not interrupt others.
+	;;
+esac
+
+# Now we are dealing with a topic branch being rebased
+# on top of master.  Is it OK to rebase it?
+
+# Does the topic really exist?
+git show-ref -q "$topic" || {
+	echo >&2 "No such branch $topic"
+	exit 1
+}
+
+# Is topic fully merged to master?
+not_in_master=`git rev-list --pretty=oneline ^master "$topic"`
+if test -z "$not_in_master"
+then
+	echo >&2 "$topic is fully merged to master; better remove it."
+	exit 1 ;# we could allow it, but there is no point.
+fi
+
+# Is topic ever merged to next?  If so you should not be rebasing it.
+only_next_1=`git rev-list ^master "^$topic" ${publish} | sort`
+only_next_2=`git rev-list ^master           ${publish} | sort`
+if test "$only_next_1" = "$only_next_2"
+then
+	not_in_topic=`git rev-list "^$topic" master`
+	if test -z "$not_in_topic"
+	then
+		echo >&2 "$topic is already up to date with master"
+		exit 1 ;# we could allow it, but there is no point.
+	else
+		exit 0
+	fi
+else
+	not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"`
+	/usr/bin/perl -e '
+		my $topic = $ARGV[0];
+		my $msg = "* $topic has commits already merged to public branch:\n";
+		my (%not_in_next) = map {
+			/^([0-9a-f]+) /;
+			($1 => 1);
+		} split(/\n/, $ARGV[1]);
+		for my $elem (map {
+				/^([0-9a-f]+) (.*)$/;
+				[$1 => $2];
+			} split(/\n/, $ARGV[2])) {
+			if (!exists $not_in_next{$elem->[0]}) {
+				if ($msg) {
+					print STDERR $msg;
+					undef $msg;
+				}
+				print STDERR " $elem->[1]\n";
+			}
+		}
+	' "$topic" "$not_in_next" "$not_in_master"
+	exit 1
+fi
+
+<<\DOC_END
+
+This sample hook safeguards topic branches that have been
+published from being rewound.
+
+The workflow assumed here is:
+
+ * Once a topic branch forks from "master", "master" is never
+   merged into it again (either directly or indirectly).
+
+ * Once a topic branch is fully cooked and merged into "master",
+   it is deleted.  If you need to build on top of it to correct
+   earlier mistakes, a new topic branch is created by forking at
+   the tip of the "master".  This is not strictly necessary, but
+   it makes it easier to keep your history simple.
+
+ * Whenever you need to test or publish your changes to topic
+   branches, merge them into "next" branch.
+
+The script, being an example, hardcodes the publish branch name
+to be "next", but it is trivial to make it configurable via
+$GIT_DIR/config mechanism.
+
+With this workflow, you would want to know:
+
+(1) ... if a topic branch has ever been merged to "next".  Young
+    topic branches can have stupid mistakes you would rather
+    clean up before publishing, and things that have not been
+    merged into other branches can be easily rebased without
+    affecting other people.  But once it is published, you would
+    not want to rewind it.
+
+(2) ... if a topic branch has been fully merged to "master".
+    Then you can delete it.  More importantly, you should not
+    build on top of it -- other people may already want to
+    change things related to the topic as patches against your
+    "master", so if you need further changes, it is better to
+    fork the topic (perhaps with the same name) afresh from the
+    tip of "master".
+
+Let's look at this example:
+
+		   o---o---o---o---o---o---o---o---o---o "next"
+		  /       /           /           /
+		 /   a---a---b A     /           /
+		/   /               /           /
+	       /   /   c---c---c---c B         /
+	      /   /   /             \         /
+	     /   /   /   b---b C     \       /
+	    /   /   /   /             \     /
+    ---o---o---o---o---o---o---o---o---o---o---o "master"
+
+
+A, B and C are topic branches.
+
+ * A has one fix since it was merged up to "next".
+
+ * B has finished.  It has been fully merged up to "master" and "next",
+   and is ready to be deleted.
+
+ * C has not merged to "next" at all.
+
+We would want to allow C to be rebased, refuse A, and encourage
+B to be deleted.
+
+To compute (1):
+
+	git rev-list ^master ^topic next
+	git rev-list ^master        next
+
+	if these match, topic has not merged in next at all.
+
+To compute (2):
+
+	git rev-list master..topic
+
+	if this is empty, it is fully merged to "master".
+
+DOC_END
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/pre-receive.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-receive.sample
new file mode 100755
index 0000000..a1fd29e
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/pre-receive.sample
@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# An example hook script to make use of push options.
+# The example simply echoes all push options that start with 'echoback='
+# and rejects all pushes when the "reject" push option is used.
+#
+# To enable this hook, rename this file to "pre-receive".
+
+if test -n "$GIT_PUSH_OPTION_COUNT"
+then
+	i=0
+	while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"
+	do
+		eval "value=\$GIT_PUSH_OPTION_$i"
+		case "$value" in
+		echoback=*)
+			echo "echo from the pre-receive-hook: ${value#*=}" >&2
+			;;
+		reject)
+			exit 1
+		esac
+		i=$((i + 1))
+	done
+fi
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/prepare-commit-msg.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/prepare-commit-msg.sample
new file mode 100755
index 0000000..10fa14c
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/prepare-commit-msg.sample
@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# An example hook script to prepare the commit log message.
+# Called by "git commit" with the name of the file that has the
+# commit message, followed by the description of the commit
+# message's source.  The hook's purpose is to edit the commit
+# message file.  If the hook fails with a non-zero status,
+# the commit is aborted.
+#
+# To enable this hook, rename this file to "prepare-commit-msg".
+
+# This hook includes three examples. The first one removes the
+# "# Please enter the commit message..." help message.
+#
+# The second includes the output of "git diff --name-status -r"
+# into the message, just before the "git status" output.  It is
+# commented because it doesn't cope with --amend or with squashed
+# commits.
+#
+# The third example adds a Signed-off-by line to the message, that can
+# still be edited.  This is rarely a good idea.
+
+COMMIT_MSG_FILE=$1
+COMMIT_SOURCE=$2
+SHA1=$3
+
+/usr/bin/perl -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE"
+
+# case "$COMMIT_SOURCE,$SHA1" in
+#  ,|template,)
+#    /usr/bin/perl -i.bak -pe '
+#       print "\n" . `git diff --cached --name-status -r`
+# 	 if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;;
+#  *) ;;
+# esac
+
+# SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
+# git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE"
+# if test -z "$COMMIT_SOURCE"
+# then
+#   /usr/bin/perl -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE"
+# fi
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/push-to-checkout.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/push-to-checkout.sample
new file mode 100755
index 0000000..af5a0c0
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/push-to-checkout.sample
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+# An example hook script to update a checked-out tree on a git push.
+#
+# This hook is invoked by git-receive-pack(1) when it reacts to git
+# push and updates reference(s) in its repository, and when the push
+# tries to update the branch that is currently checked out and the
+# receive.denyCurrentBranch configuration variable is set to
+# updateInstead.
+#
+# By default, such a push is refused if the working tree and the index
+# of the remote repository has any difference from the currently
+# checked out commit; when both the working tree and the index match
+# the current commit, they are updated to match the newly pushed tip
+# of the branch. This hook is to be used to override the default
+# behaviour; however the code below reimplements the default behaviour
+# as a starting point for convenient modification.
+#
+# The hook receives the commit with which the tip of the current
+# branch is going to be updated:
+commit=$1
+
+# It can exit with a non-zero status to refuse the push (when it does
+# so, it must not modify the index or the working tree).
+die () {
+	echo >&2 "$*"
+	exit 1
+}
+
+# Or it can make any necessary changes to the working tree and to the
+# index to bring them to the desired state when the tip of the current
+# branch is updated to the new commit, and exit with a zero status.
+#
+# For example, the hook can simply run git read-tree -u -m HEAD "$1"
+# in order to emulate git fetch that is run in the reverse direction
+# with git push, as the two-tree form of git read-tree -u -m is
+# essentially the same as git switch or git checkout that switches
+# branches while keeping the local changes in the working tree that do
+# not interfere with the difference between the branches.
+
+# The below is a more-or-less exact translation to shell of the C code
+# for the default behaviour for git's push-to-checkout hook defined in
+# the push_to_deploy() function in builtin/receive-pack.c.
+#
+# Note that the hook will be executed from the repository directory,
+# not from the working tree, so if you want to perform operations on
+# the working tree, you will have to adapt your code accordingly, e.g.
+# by adding "cd .." or using relative paths.
+
+if ! git update-index -q --ignore-submodules --refresh
+then
+	die "Up-to-date check failed"
+fi
+
+if ! git diff-files --quiet --ignore-submodules --
+then
+	die "Working directory has unstaged changes"
+fi
+
+# This is a rough translation of:
+#
+#   head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX
+if git cat-file -e HEAD 2>/dev/null
+then
+	head=HEAD
+else
+	head=$(git hash-object -t tree --stdin </dev/null)
+fi
+
+if ! git diff-index --quiet --cached --ignore-submodules $head --
+then
+	die "Working directory has staged changes"
+fi
+
+if ! git read-tree -u -m "$commit"
+then
+	die "Could not update working tree to new HEAD"
+fi
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/sendemail-validate.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/sendemail-validate.sample
new file mode 100755
index 0000000..640bcf8
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/sendemail-validate.sample
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+# An example hook script to validate a patch (and/or patch series) before
+# sending it via email.
+#
+# The hook should exit with non-zero status after issuing an appropriate
+# message if it wants to prevent the email(s) from being sent.
+#
+# To enable this hook, rename this file to "sendemail-validate".
+#
+# By default, it will only check that the patch(es) can be applied on top of
+# the default upstream branch without conflicts in a secondary worktree. After
+# validation (successful or not) of the last patch of a series, the worktree
+# will be deleted.
+#
+# The following config variables can be set to change the default remote and
+# remote ref that are used to apply the patches against:
+#
+#   sendemail.validateRemote (default: origin)
+#   sendemail.validateRemoteRef (default: HEAD)
+#
+# Replace the TODO placeholders with appropriate checks according to your
+# needs.
+
+validate_cover_letter () {
+	file="$1"
+	# TODO: Replace with appropriate checks (e.g. spell checking).
+	true
+}
+
+validate_patch () {
+	file="$1"
+	# Ensure that the patch applies without conflicts.
+	git am -3 "$file" || return
+	# TODO: Replace with appropriate checks for this patch
+	# (e.g. checkpatch.pl).
+	true
+}
+
+validate_series () {
+	# TODO: Replace with appropriate checks for the whole series
+	# (e.g. quick build, coding style checks, etc.).
+	true
+}
+
+# main -------------------------------------------------------------------------
+
+if test "$GIT_SENDEMAIL_FILE_COUNTER" = 1
+then
+	remote=$(git config --default origin --get sendemail.validateRemote) &&
+	ref=$(git config --default HEAD --get sendemail.validateRemoteRef) &&
+	worktree=$(mktemp --tmpdir -d sendemail-validate.XXXXXXX) &&
+	git worktree add -fd --checkout "$worktree" "refs/remotes/$remote/$ref" &&
+	git config --replace-all sendemail.validateWorktree "$worktree"
+else
+	worktree=$(git config --get sendemail.validateWorktree)
+fi || {
+	echo "sendemail-validate: error: failed to prepare worktree" >&2
+	exit 1
+}
+
+unset GIT_DIR GIT_WORK_TREE
+cd "$worktree" &&
+
+if grep -q "^diff --git " "$1"
+then
+	validate_patch "$1"
+else
+	validate_cover_letter "$1"
+fi &&
+
+if test "$GIT_SENDEMAIL_FILE_COUNTER" = "$GIT_SENDEMAIL_FILE_TOTAL"
+then
+	git config --unset-all sendemail.validateWorktree &&
+	trap 'git worktree remove -ff "$worktree"' EXIT &&
+	validate_series
+fi
diff --git a/.build/repositories/swift-collections-9a58d5cf/hooks/update.sample b/.build/repositories/swift-collections-9a58d5cf/hooks/update.sample
new file mode 100755
index 0000000..c4d426b
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/hooks/update.sample
@@ -0,0 +1,128 @@
+#!/bin/sh
+#
+# An example hook script to block unannotated tags from entering.
+# Called by "git receive-pack" with arguments: refname sha1-old sha1-new
+#
+# To enable this hook, rename this file to "update".
+#
+# Config
+# ------
+# hooks.allowunannotated
+#   This boolean sets whether unannotated tags will be allowed into the
+#   repository.  By default they won't be.
+# hooks.allowdeletetag
+#   This boolean sets whether deleting tags will be allowed in the
+#   repository.  By default they won't be.
+# hooks.allowmodifytag
+#   This boolean sets whether a tag may be modified after creation. By default
+#   it won't be.
+# hooks.allowdeletebranch
+#   This boolean sets whether deleting branches will be allowed in the
+#   repository.  By default they won't be.
+# hooks.denycreatebranch
+#   This boolean sets whether remotely creating branches will be denied
+#   in the repository.  By default this is allowed.
+#
+
+# --- Command line
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+# --- Safety check
+if [ -z "$GIT_DIR" ]; then
+	echo "Don't run this script from the command line." >&2
+	echo " (if you want, you could supply GIT_DIR then run" >&2
+	echo "  $0 <ref> <oldrev> <newrev>)" >&2
+	exit 1
+fi
+
+if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
+	echo "usage: $0 <ref> <oldrev> <newrev>" >&2
+	exit 1
+fi
+
+# --- Config
+allowunannotated=$(git config --type=bool hooks.allowunannotated)
+allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch)
+denycreatebranch=$(git config --type=bool hooks.denycreatebranch)
+allowdeletetag=$(git config --type=bool hooks.allowdeletetag)
+allowmodifytag=$(git config --type=bool hooks.allowmodifytag)
+
+# check for no description
+projectdesc=$(sed -e '1q' "$GIT_DIR/description")
+case "$projectdesc" in
+"Unnamed repository"* | "")
+	echo "*** Project description file hasn't been set" >&2
+	exit 1
+	;;
+esac
+
+# --- Check types
+# if $newrev is 0000...0000, it's a commit to delete a ref.
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
+if [ "$newrev" = "$zero" ]; then
+	newrev_type=delete
+else
+	newrev_type=$(git cat-file -t $newrev)
+fi
+
+case "$refname","$newrev_type" in
+	refs/tags/*,commit)
+		# un-annotated tag
+		short_refname=${refname##refs/tags/}
+		if [ "$allowunannotated" != "true" ]; then
+			echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
+			echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,delete)
+		# delete tag
+		if [ "$allowdeletetag" != "true" ]; then
+			echo "*** Deleting a tag is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,tag)
+		# annotated tag
+		if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
+		then
+			echo "*** Tag '$refname' already exists." >&2
+			echo "*** Modifying a tag is not allowed in this repository." >&2
+			exit 1
+		fi
+		;;
+	refs/heads/*,commit)
+		# branch
+		if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
+			echo "*** Creating a branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/heads/*,delete)
+		# delete branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/remotes/*,commit)
+		# tracking branch
+		;;
+	refs/remotes/*,delete)
+		# delete tracking branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a tracking branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	*)
+		# Anything else (is there anything else?)
+		echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
+		exit 1
+		;;
+esac
+
+# --- Finished
+exit 0
diff --git a/.build/repositories/swift-collections-9a58d5cf/info/exclude b/.build/repositories/swift-collections-9a58d5cf/info/exclude
new file mode 100644
index 0000000..a5196d1
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/info/exclude
@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
diff --git a/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.idx b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.idx
new file mode 100644
index 0000000..1e3f921
Binary files /dev/null and b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.idx differ
diff --git a/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.pack b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.pack
new file mode 100644
index 0000000..3d02f59
Binary files /dev/null and b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.pack differ
diff --git a/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.rev b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.rev
new file mode 100644
index 0000000..b8907c8
Binary files /dev/null and b/.build/repositories/swift-collections-9a58d5cf/objects/pack/pack-fab9225dfff84faf2a9ec51aa95fbb0d1418af17.rev differ
diff --git a/.build/repositories/swift-collections-9a58d5cf/packed-refs b/.build/repositories/swift-collections-9a58d5cf/packed-refs
new file mode 100644
index 0000000..9aec3e3
--- /dev/null
+++ b/.build/repositories/swift-collections-9a58d5cf/packed-refs
@@ -0,0 +1,404 @@
+# pack-refs with: peeled fully-peeled sorted 
+1f8dcd4726717a4b724e5408ca24829bdef67a49 refs/heads/action-xcode-versions
+7ae9880f0fb622992a8a5328fd4af78af5b6b26f refs/heads/dn/remove-retain-release-during-find
+ebd51171f0e45788e2cdb3cc6d54233e11d7443c refs/heads/future
+e7ffe90ae7321d77ddd928dc2bdef7accf2ab56f refs/heads/main
+762bc5757de4bcf86cc3b3266e3df93f76469089 refs/heads/nate/zip_dispatch_benchmarking
+d029d9d39c87bed85b1c50adee7c41795261a192 refs/heads/release/1.0
+c11818f3cae0780656baa430b49e7f163f08dffd refs/heads/release/1.1
+2d1f4172091ca272b461397748fd2c32847036dd refs/heads/release/1.2
+a26fc8e7e4c6e0d63b08951f5b7268044fb95c83 refs/heads/span-prototype
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diff --git a/.build/workspace-state.json b/.build/workspace-state.json
new file mode 100644
index 0000000..2f181c7
--- /dev/null
+++ b/.build/workspace-state.json
@@ -0,0 +1,30 @@
+{
+  "object" : {
+    "artifacts" : [
+
+    ],
+    "dependencies" : [
+      {
+        "basedOn" : null,
+        "packageRef" : {
+          "identity" : "swift-collections",
+          "kind" : "remoteSourceControl",
+          "location" : "https://github.com/apple/swift-collections.git",
+          "name" : "swift-collections"
+        },
+        "state" : {
+          "checkoutState" : {
+            "revision" : "8c0c0a8b49e080e54e5e328cc552821ff07cd341",
+            "version" : "1.2.1"
+          },
+          "name" : "sourceControlCheckout"
+        },
+        "subpath" : "swift-collections"
+      }
+    ],
+    "prebuilts" : [
+
+    ]
+  },
+  "version" : 7
+}
\ No newline at end of file
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..fcb7abf
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+[*.{yml,yaml,json,md}]
+indent_size = 2
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..84a9456
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+* text=auto eol=lf
+*.png binary
+*.jpg binary
+*.xcworkspace -text
+*.xcodeproj -text
diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
new file mode 100644
index 0000000..207e3dd
--- /dev/null
+++ b/.github/workflows/markdownlint.yml
@@ -0,0 +1,15 @@
+name: Markdown Lint
+on:
+  pull_request:
+    paths: ["**/*.md"]
+  push:
+    paths: ["**/*.md"]
+jobs:
+  markdownlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DavidAnson/markdownlint-cli2-action@v17
+        with:
+          globs: |
+            **/*.md
diff --git a/.github/workflows/swift-ci.yml b/.github/workflows/swift-ci.yml
new file mode 100644
index 0000000..2019307
--- /dev/null
+++ b/.github/workflows/swift-ci.yml
@@ -0,0 +1,32 @@
+name: Swift CI
+on:
+  pull_request:
+  push:
+jobs:
+  spm:
+    if: ${{ hashFiles('Package.swift') != '' }}
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v4
+      - uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: '15.4'
+      - name: Build
+        run: swift build -v
+      - name: Test
+        run: swift test --enable-code-coverage
+  xcode:
+    if: ${{ hashFiles('*.xcodeproj') != '' || hashFiles('*.xcworkspace') != '' }}
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v4
+      - uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: '15.4'
+      - name: Select scheme and build (generic platform)
+        shell: bash
+        run: |
+          SCHEME=$(xcodebuild -list 2>/dev/null | awk '/Schemes:/{flag=1;next} flag && NF{print; exit}')
+          if [ -n "$SCHEME" ]; then
+            xcodebuild -scheme "$SCHEME" -configuration Release -destination 'generic/platform=iOS' build | xcpretty || true
+          fi
diff --git a/.github/workflows/swiftlint.yml b/.github/workflows/swiftlint.yml
new file mode 100644
index 0000000..e353097
--- /dev/null
+++ b/.github/workflows/swiftlint.yml
@@ -0,0 +1,17 @@
+name: SwiftLint
+on:
+  pull_request:
+    paths: ["**/*.swift", ".swiftlint.yml"]
+  push:
+    paths: ["**/*.swift", ".swiftlint.yml"]
+jobs:
+  lint:
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install SwiftLint
+        run: |
+          brew update || true
+          brew install swiftlint || true
+      - name: Run SwiftLint
+        run: swiftlint --strict
diff --git a/.swiftlint.yml b/.swiftlint.yml
new file mode 100644
index 0000000..5399324
--- /dev/null
+++ b/.swiftlint.yml
@@ -0,0 +1,14 @@
+disabled_rules:
+  - trailing_whitespace
+  - line_length
+  - identifier_name
+  - cyclomatic_complexity
+  - function_body_length
+opt_in_rules:
+  - empty_count
+  - explicit_init
+  - fatal_error_message
+included:
+  - Sources
+  - Tests
+reporter: "github-actions-logging"