[INFO] cloning repository https://github.com/i330z/rust-crash-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/i330z/rust-crash-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi330z%2Frust-crash-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi330z%2Frust-crash-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17166e14fce765a10f90cd1d64aa184ffde7c9f9
[INFO] building i330z/rust-crash-course against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi330z%2Frust-crash-course" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device


ExecutionFailed(ExitStatus(unix_wait_status(256)))

failed to checkout https://github.com/i330z/rust-crash-course