x/build/cmd/buildlet: TestReverseDial failures

[gopherbot]

#!watchflakes
default <- pkg == "golang.org/x/build/cmd/buildlet" && test == "TestReverseDial"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestReverseDial
2024/02/26 18:48:49 Dialing coordinator [::]:32817 ...
2024/02/26 18:48:49 Dialed coordinator [::]:32817.
2024/02/26 18:48:49 Doing TLS handshake with coordinator (verifying hostname "[::]:32817")...
2024/02/26 18:48:49 Registering reverse mode with coordinator...
2024/02/26 18:48:49 Registering reverse buildlet "%H" ([::1]:42340) for host type test-reverse-dial; buildletVersion=28
2024/02/26 18:48:49 Reverse connection %H/[::1]:42340 for test-reverse-dial did not answer status after 4.307µs: parse "http://%H/status": invalid URL escape "%H"
2024/02/26 18:48:49 Connected to coordinator; reverse dialing active
    reverse_test.go:127: Buildlet failed to register within 1s.
    reverse_test.go:91: Server shutdown got err revdial: Listener closed want ErrServerClosed
--- FAIL: TestReverseDial (1.01s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/build/cmd/buildlet" && test == "TestReverseDial"

2024-02-26 18:45 x_build-go1.22-linux-amd64 build@8f1a059b release-branch.go1.22@6cbe522f x/build/cmd/buildlet.TestReverseDial (log)

=== RUN   TestReverseDial
2024/02/26 18:48:49 Dialing coordinator [::]:32817 ...
2024/02/26 18:48:49 Dialed coordinator [::]:32817.
2024/02/26 18:48:49 Doing TLS handshake with coordinator (verifying hostname "[::]:32817")...
2024/02/26 18:48:49 Registering reverse mode with coordinator...
2024/02/26 18:48:49 Registering reverse buildlet "%H" ([::1]:42340) for host type test-reverse-dial; buildletVersion=28
2024/02/26 18:48:49 Reverse connection %H/[::1]:42340 for test-reverse-dial did not answer status after 4.307µs: parse "http://%H/status": invalid URL escape "%H"
2024/02/26 18:48:49 Connected to coordinator; reverse dialing active
    reverse_test.go:127: Buildlet failed to register within 1s.
    reverse_test.go:91: Server shutdown got err revdial: Listener closed want ErrServerClosed
--- FAIL: TestReverseDial (1.01s)

2024-02-26 18:45 x_build-go1.22-linux-amd64-boringcrypto build@8f1a059b release-branch.go1.22@6cbe522f x/build/cmd/buildlet.TestReverseDial (log)

=== RUN   TestReverseDial
2024/02/26 18:49:58 Dialing coordinator [::]:44093 ...
2024/02/26 18:49:58 Dialed coordinator [::]:44093.
2024/02/26 18:49:58 Doing TLS handshake with coordinator (verifying hostname "[::]:44093")...
2024/02/26 18:49:58 Registering reverse mode with coordinator...
2024/02/26 18:49:58 Registering reverse buildlet "%H" (127.0.0.1:53148) for host type test-reverse-dial; buildletVersion=28
2024/02/26 18:49:58 Connected to coordinator; reverse dialing active
2024/02/26 18:49:58 Reverse connection %H/127.0.0.1:53148 for test-reverse-dial did not answer status after 2.406µs: parse "http://%H/status": invalid URL escape "%H"
    reverse_test.go:127: Buildlet failed to register within 1s.
    reverse_test.go:91: Server shutdown got err revdial: Listener closed want ErrServerClosed
--- FAIL: TestReverseDial (1.00s)

2024-02-26 18:45 x_build-go1.22-linux-amd64-longtest build@8f1a059b release-branch.go1.22@6cbe522f x/build/cmd/buildlet.TestReverseDial (log)

=== RUN   TestReverseDial
2024/02/26 18:48:34 Dialing coordinator [::]:46321 ...
2024/02/26 18:48:34 Dialed coordinator [::]:46321.
2024/02/26 18:48:34 Doing TLS handshake with coordinator (verifying hostname "[::]:46321")...
2024/02/26 18:48:34 Registering reverse mode with coordinator...
2024/02/26 18:48:34 Registering reverse buildlet "%H" (127.0.0.1:42102) for host type test-reverse-dial; buildletVersion=28
2024/02/26 18:48:34 Connected to coordinator; reverse dialing active
2024/02/26 18:48:34 Reverse connection %H/127.0.0.1:42102 for test-reverse-dial did not answer status after 3.802µs: parse "http://%H/status": invalid URL escape "%H"
    reverse_test.go:127: Buildlet failed to register within 1s.
    reverse_test.go:91: Server shutdown got err revdial: Listener closed want ErrServerClosed
--- FAIL: TestReverseDial (1.01s)

— watchflakes