ci: align actions/cache consumers to v6 to match the LLVM cache producer#4996
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matthargett wants to merge 1 commit into
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ci: align actions/cache consumers to v6 to match the LLVM cache producer#4996matthargett wants to merge 1 commit into
matthargett wants to merge 1 commit into
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build_llvm_libraries.yml saves the prebuilt LLVM libraries cache with
actions/cache@v6, but three consumer workflows still restore it with
actions/cache@v5:
- compilation_on_android_ubuntu.yml
- compilation_on_macos.yml
- nightly_run.yml
A cache archive written by v6 is reported to a v5 consumer as a metadata
"hit" but then fails to restore ("Failed to restore" / "Cache not found
for input keys"), so the retrieve step trips the "can not get prebuilt
llvm libraries" guard and every LLVM-consuming leg on ubuntu-22.04 and
macOS fails. Consumers already on v6 (compilation_on_sgx,
spec_test_on_nuttx, compilation_on_windows, build_wamrc, ...) restore the
same archive without issue.
Bump the three lagging consumers to actions/cache@v6 so the producer and
all consumers use the same cache version. Fixes the ubuntu-22.04
build_iwasm / build_wamrc / build_regression_tests matrix on main, and
the recurring macOS LLVM-cache failures tracked in bytecodealliance#4830.
matthargett
requested review from
TianlongLiang,
lum1n0us and
yamt
as code owners
July 16, 2026 21:31
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Problem
On
main, the entireubuntu-22.04, linuxbuild matrix is red — everybuild_iwasmconfig plusbuild_wamrc (ubuntu-22.04)andbuild_regression_tests (ubuntu-22.04)— failing with:The macOS LLVM-cache jobs fail the same way (issue #4830).
Root cause
build_llvm_libraries.yml(the cache producer) saves the prebuilt-LLVM cache withactions/cache@v6, but three consumer workflows still restore it withactions/cache@v5:actions/cachebuild_llvm_libraries.yml(producer)compilation_on_android_ubuntu.ymlcompilation_on_macos.ymlnightly_run.ymlA cache archive written by v6 is reported to a v5 consumer as a metadata hit, then fails to restore:
…which trips the
can not get prebuilt llvm librariesguard, so every LLVM-consuming leg fails. The consumers already on v6 restore the same archive without issue — which is the evidence that v6-producer + v6-consumer is the working combination.Fix
Bump the three lagging consumers to
actions/cache@v6so the producer and all consumers share one cache version (17 one-line changes, no other behavior change).Fixes the ubuntu-22.04 build matrix on
mainand the recurring macOS LLVM-cache failures tracked in #4830.