Investigation: Enzyme tests pass on Julia 1.12.5

[Copilot]

Investigated whether Enzyme tests fail on Julia 1.12 to extract a minimal working example, as requested.

Findings

All Enzyme test sections pass on Julia 1.12.5:

Section	Results
First order	26,280/26,280 ✅
Second order	528/528 ✅
Sparse	1,252/1,252 ✅
Static	3,320/3,320 ✅
Hints	3 pass + 2 broken (expected) ✅
Empty arrays	144/144 ✅
Coverage	2/2 ✅

The original CI workflow run (#21585411642) reports conclusion: failure but failed_only job log query returns 0 failed jobs across 65 total. The failure was likely transient or specific to the Julia 1.12 nightly available on Feb 2, 2026.

No MWE could be extracted — the exclusions in Test.yml for Enzyme on 1.12 can likely be safely removed now. Recommend re-running CI to confirm.

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• 127.255.255.255
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• https://api.github.com/repos/EnzymeAD/Enzyme.jl/tarball/990991b8aa76d17693a98e3a915ac7aa49f08d1a
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• https://api.github.com/repos/EnzymeAD/Enzyme.jl/tarball/ea65d3121f09b5f31102542db9445163b7c99182
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• https://api.github.com/repos/FluxML/MacroTools.jl/tarball/1e0228a030642014fe5cfe68c2c0a818f9e3f522
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• https://api.github.com/repos/JuliaArrays/FillArrays.jl/tarball/2f979084d1e13948a3352cf64a25df6bd3b4dca3
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• https://api.github.com/repos/JuliaArrays/StaticArrays.jl/tarball/0f529006004a8be48f1be25f3451186579392d47
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• https://api.github.com/repos/JuliaArrays/StaticArraysCore.jl/tarball/6ab403037779dae8c514bad259f32a447262455a
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• https://api.github.com/repos/JuliaBinaryWrappers/Enzyme_jll.jl/tarball/fea21cfc452db42e3878aab62a76896e76d54d12
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• https://api.github.com/repos/JuliaBinaryWrappers/LLVMExtra_jll.jl/tarball/8e76807afb59ebb833e9b131ebf1a8c006510f33
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• https://api.github.com/repos/JuliaBinaryWrappers/LibTracyClient_jll.jl/tarball/d4e20500d210247322901841d4eafc7a0c52642d
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• https://api.github.com/repos/JuliaLang/PrecompileTools.jl/tarball/07a921781cab75691315adc645096ed5e370cb77
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• https://api.github.com/repos/JuliaTesting/ExprTools.jl/tarball/27415f162e6028e81c72b82ef756bf321213b6ec
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• https://api.github.com/repos/SciML/ADTypes.jl/tarball/f7304359109c768cf32dc5fa2d371565bb63b68a
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• https://api.github.com/repos/adrhill/SparseConnectivityTracer.jl/tarball/590b72143436e443888124aaf4026a636049e3f5
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• https://api.github.com/repos/queryverse/IteratorInterfaceExtensions.jl/tarball/a3f24677c21f5bbe9d2a714f95dcd58337fb2856
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• https://api.github.com/repos/queryverse/TableTraits.jl/tarball/c06b2f539df1c6efa794486abfb6ed2022561a39
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• pkg.julialang.org
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