[INFO] cloning repository https://github.com/sourcefrog/rust-analyzer-17039-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sourcefrog/rust-analyzer-17039-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourcefrog%2Frust-analyzer-17039-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourcefrog%2Frust-analyzer-17039-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01b777f924d0d4d0e67c21e79e52a157f32b532
[INFO] checking sourcefrog/rust-analyzer-17039-repro against master#f5d3fe273b8b9e7125bf8856d44793b6cc4b6735 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourcefrog%2Frust-analyzer-17039-repro" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-0-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/sourcefrog/rust-analyzer-17039-repro

Caused by:
    command failed: exit status: 128