time: TestAdjustTimers failures

[gopherbot]

#!watchflakes
default <- pkg == "time" && test == "TestAdjustTimers"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestAdjustTimers
    sleep_test.go:777: timer 65 took 993.232333ms to complete
--- FAIL: TestAdjustTimers (1.78s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "time" && test == "TestAdjustTimers"

2025-08-08 14:02 gotip-netbsd-arm64 go@768c51e3 time.TestAdjustTimers (log)

=== RUN   TestAdjustTimers
    sleep_test.go:777: timer 65 took 993.232333ms to complete
--- FAIL: TestAdjustTimers (1.78s)

— watchflakes