cmd/go: TestScript/cover_sync_atomic_import failures

[gopherbot]

#!watchflakes
default <- pkg == "cmd/go" && test == "TestScript/cover_sync_atomic_import"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestScript/cover_sync_atomic_import
=== PAUSE TestScript/cover_sync_atomic_import
=== CONT  TestScript/cover_sync_atomic_import
    script_test.go:139: 2024-11-18T20:54:46Z
    script_test.go:141: $WORK=/home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/cover_sync_atomic_import3372092879
    script_test.go:163: 
        PATH=/home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/testbin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/cache/tools/bin:/home/swarming/.swarming/w/ir/bbagent_utility_packages:/home/swarming/.swarming/w/ir/bbagent_utility_packages/bin:/home/swarming/.swarming/w/ir/cipd_bin_packages:/home/swarming/.swarming/w/ir/cipd_bin_packages/bin:/home/swarming/.swarming/w/ir/cipd_bin_packages/cpython3:/home/swarming/.swarming/w/ir/cipd_bin_packages/cpython3/bin:/home/swarming/.swarming/w/ir/cache/cipd_client:/home/swarming/.swarming/w/ir/cache/cipd_client/bin:/home/swarming/.swarming/cipd_cache/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
        HOME=/no-home
        CCACHE_DISABLE=1
        GOARCH=amd64
...
        [stdout]
        ok  	sync/atomic	1.032s	coverage: 23.3% of statements
        > go test -short -cover -race -run=TestAnd8 internal/runtime/atomic
        [stdout]
        PASS
        error generating coverage report: processing counter data file /home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/cover_sync_atomic_import3372092879/tmp/go-build3209127363/b001/gocoverdir/covcounters.f3aa8210249b3824780256cba1210f3b.419336.1731963357691381105: merging counters: len(dst)=4 len(src)=1
        FAIL	internal/runtime/atomic	0.044s
        FAIL
    script_test.go:163: FAIL: testdata/script/cover_sync_atomic_import.txt:20: go test -short -cover -race -run=TestAnd8 internal/runtime/atomic: exit status 1
--- FAIL: TestScript/cover_sync_atomic_import (71.48s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/go" && test == "TestScript/cover_sync_atomic_import"

2024-11-18 20:30 gotip-linux-amd64-longtest-race go@36b5b053 cmd/go.TestScript/cover_sync_atomic_import (log)

=== RUN   TestScript/cover_sync_atomic_import
=== PAUSE TestScript/cover_sync_atomic_import
=== CONT  TestScript/cover_sync_atomic_import
    script_test.go:139: 2024-11-18T20:54:46Z
    script_test.go:141: $WORK=/home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/cover_sync_atomic_import3372092879
    script_test.go:163: 
        PATH=/home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/testbin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/x/w/goroot/bin:/home/swarming/.swarming/w/ir/cache/tools/bin:/home/swarming/.swarming/w/ir/bbagent_utility_packages:/home/swarming/.swarming/w/ir/bbagent_utility_packages/bin:/home/swarming/.swarming/w/ir/cipd_bin_packages:/home/swarming/.swarming/w/ir/cipd_bin_packages/bin:/home/swarming/.swarming/w/ir/cipd_bin_packages/cpython3:/home/swarming/.swarming/w/ir/cipd_bin_packages/cpython3/bin:/home/swarming/.swarming/w/ir/cache/cipd_client:/home/swarming/.swarming/w/ir/cache/cipd_client/bin:/home/swarming/.swarming/cipd_cache/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
        HOME=/no-home
        CCACHE_DISABLE=1
        GOARCH=amd64
...
        [stdout]
        ok  	sync/atomic	1.032s	coverage: 23.3% of statements
        > go test -short -cover -race -run=TestAnd8 internal/runtime/atomic
        [stdout]
        PASS
        error generating coverage report: processing counter data file /home/swarming/.swarming/w/ir/x/t/cmd-go-test-727923194/tmpdir1021279256/cover_sync_atomic_import3372092879/tmp/go-build3209127363/b001/gocoverdir/covcounters.f3aa8210249b3824780256cba1210f3b.419336.1731963357691381105: merging counters: len(dst)=4 len(src)=1
        FAIL	internal/runtime/atomic	0.044s
        FAIL
    script_test.go:163: FAIL: testdata/script/cover_sync_atomic_import.txt:20: go test -short -cover -race -run=TestAnd8 internal/runtime/atomic: exit status 1
--- FAIL: TestScript/cover_sync_atomic_import (71.48s)

— watchflakes