Update lifecycle from v0.20.12 to v0.20.13 #784
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Release notes: https://github.com/buildpacks/lifecycle/releases/tag/v0.20.13 Full changelog: buildpacks/lifecycle@v0.20.12...v0.20.13 Also corrects the lifecycle version listed in README for `heroku/builder:20`, which is no longer updated. GUS-W-19336168.
dzuelke
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Aug 14, 2025
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After this is released, language owners will need to update their libcnb-test integration test assertions to account for buildpack output now all going to stdout, per: |
This was referenced Aug 14, 2025
edmorley
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Due to: heroku/cnb-builder-images#784 (comment) Signed-off-by: Ed Morley <501702+edmorley@users.noreply.github.com>
schneems
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CNB builder images v0.20.13 (heroku/cnb-builder-images#784) includes the fix for the interleaved buildpack stdout/stderr (buildpacks/lifecycle#1525), however, that will mean some CNB integration tests that test context.pack_stdout and context.pack_stderr will need updating. The fix is to use stdout instead of stderr as lifecycle is now redirecting the output.
schneems
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* Fix clippy for Rust 1.89 ``` error: item in documentation is missing backticks --> commons/src/layer/fixtures/metadata_migration_example.md:1:11 | 1 | ## Setup DiffMigrateLayer for new layer Metadata | ^^^^^^^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#doc_markdown = note: `-D clippy::doc-markdown` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::doc_markdown)]` help: try | 1 - ## Setup DiffMigrateLayer for new layer Metadata 1 + ## Setup `DiffMigrateLayer` for new layer Metadata | Checking libcnb-test v0.29.0 error: item in documentation is missing backticks --> commons/src/layer/fixtures/metadata_migration_example.md:108:13 | 108 | - Takes a bullet_stream printer for maximal printing consistency | ^^^^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#doc_markdown help: try | 108 - - Takes a bullet_stream printer for maximal printing consistency 108 + - Takes a `bullet_stream` printer for maximal printing consistency | error: could not compile `commons` (lib) due to 2 previous errors ``` ``` warning: infallible TryFrom impl; consider implementing From, instead --> buildpacks/ruby/src/layers/bundle_install_layer.rs:145:1 | 145 | impl TryFrom<MetadataV3> for MetadataV4 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 146 | type Error = std::convert::Infallible; | ------------------------ infallible error type | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#infallible_try_from = note: `#[warn(clippy::infallible_try_from)]` on by default ``` Close #448 * Fix integration tests to read stdout CNB builder images v0.20.13 (heroku/cnb-builder-images#784) includes the fix for the interleaved buildpack stdout/stderr (buildpacks/lifecycle#1525), however, that will mean some CNB integration tests that test context.pack_stdout and context.pack_stderr will need updating. The fix is to use stdout instead of stderr as lifecycle is now redirecting the output.
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(I'm opening a manual PR for this, since the GHA workflow doesn't support updating to releases still listed as pre-release)
Release notes:
https://github.com/buildpacks/lifecycle/releases/tag/v0.20.13
Full changelog:
buildpacks/lifecycle@v0.20.12...v0.20.13
Also corrects the lifecycle version listed in README for
heroku/builder:20, which is no longer updated.GUS-W-19336168.