[INFO] cloning repository https://github.com/graders-rs/graders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/graders-rs/graders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4a0074fe83f0e32c4f4f81a77c84e75475594b1
[INFO] checking graders-rs/graders against try#5785402183672f7786e9dc343d7b435bdaf4a4bc for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-7-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.filemode' to 'true'
[INFO] checking graders-rs/graders against try#5785402183672f7786e9dc343d7b435bdaf4a4bc for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-7-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[INFO] checking graders-rs/graders against try#5785402183672f7786e9dc343d7b435bdaf4a4bc for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-7-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[INFO] checking graders-rs/graders against try#5785402183672f7786e9dc343d7b435bdaf4a4bc for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-7-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[INFO] checking graders-rs/graders against try#5785402183672f7786e9dc343d7b435bdaf4a4bc for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create work tree dir '/workspace/builds/worker-7-tc2/source': No space left on device


failed to checkout https://github.com/graders-rs/graders

Caused by:
    command failed: exit status: 128