[INFO] cloning repository https://github.com/yusei-wy/rustack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yusei-wy/rustack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyusei-wy%2Frustack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyusei-wy%2Frustack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e90c53d3d98faef43679cd5142d69b7797b27cc
[INFO] checking yusei-wy/rustack against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyusei-wy%2Frustack" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] /workspace/builds/worker-6-tc1/source/.git/branches/: No space left on device


failed to checkout https://github.com/yusei-wy/rustack

Caused by:
    command failed: exit status: 1