[INFO] cloning repository https://github.com/study-rust/ownership-and-slices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/study-rust/ownership-and-slices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-rust%2Fownership-and-slices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-rust%2Fownership-and-slices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8611c00fd43fd65dc53c1338eded9f4086923e81
[INFO] checking study-rust/ownership-and-slices against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-rust%2Fownership-and-slices" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write symref for refs/remotes/origin/HEAD: No space left on device
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD


failed to checkout https://github.com/study-rust/ownership-and-slices

Caused by:
    command failed: exit status: 128