[INFO] cloning repository https://github.com/zmm2004/exam-grading
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zmm2004/exam-grading" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmm2004%2Fexam-grading", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmm2004%2Fexam-grading'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aafd38c91284b825ab7ad8823efbc5838df15dc7
[INFO] checking zmm2004/exam-grading against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmm2004%2Fexam-grading" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file tests/fixture/failure/exercises/compFailure.rs
[INFO] [stderr] error: unable to write file tests/fixture/failure/exercises/compNoExercise.rs
[INFO] [stderr] error: unable to write file tests/fixture/failure/exercises/testFailure.rs
[INFO] [stderr] error: unable to write file tests/fixture/failure/exercises/testNotPassed.rs
[INFO] [stderr] error: unable to write file tests/fixture/failure/info.toml
[INFO] [stderr] fatal: cannot create directory at 'tests/fixture/state': No space left on device
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/zmm2004/exam-grading
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.