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This is a beta toolchain report — advance notice, not a regression.
It comes from the xcode-27 preview runner image, whose default Xcode is a
pre-release beta (27.0 (27A5228h)). Nothing here blocks a merge, reddens a run, or means the
shipping toolchain is broken — that is tracked separately under the drift label.
Beta failures are expected to be noisy, especially in the weeks after WWDC. Read this
as roughly two months of warning about what Xcode GA will bring to macos-latest.
A beta toolchain drift run failed against a pre-release Xcode. Each item below is an independent failure signal.
swift test failed against freshly generated fixtures.
Toolchain
Channel: beta (runs-on: xcode-27)
Xcode: 27.0 (27A5228h)
xcresulttool: xcresulttool version 25103.1, schema version: 0.4.0 (legacy commands format version: 3.60)
Step outcomes
Step
Outcome
legacy xcresulttool marker
success
swift build
success
fixture generation
success
fixtures contain test data
success
swift test
failure
xchtmlreport clean exit
success
Filed automatically by the toolchain-drift workflow (#392). While this issue stays open, later failing runs append comments here instead of filing duplicates.
Warning
This is a beta toolchain report — advance notice, not a regression.
It comes from the
xcode-27preview runner image, whose default Xcode is apre-release beta (27.0 (27A5228h)). Nothing here blocks a merge, reddens a run, or means the
shipping toolchain is broken — that is tracked separately under the
driftlabel.Beta failures are expected to be noisy, especially in the weeks after WWDC. Read this
as roughly two months of warning about what Xcode GA will bring to
macos-latest.A beta toolchain drift run failed against a pre-release Xcode. Each item below is an independent failure signal.
swift testfailed against freshly generated fixtures.Toolchain
runs-on: xcode-27)xcresulttool version 25103.1, schema version: 0.4.0 (legacy commands format version: 3.60)Step outcomes
Filed automatically by the
toolchain-driftworkflow (#392). While this issue stays open, later failing runs append comments here instead of filing duplicates.