[INFO] cloning repository https://github.com/he-andy/ray-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/he-andy/ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhe-andy%2Fray-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhe-andy%2Fray-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe3dff14f7d54134b68b7a02071df047e6418e9d
[INFO] testing he-andy/ray-tracer against master#7704328ba5ae8d6ce0ac303c9d5a1a1605906766 for pr-146989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhe-andy%2Fray-tracer" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file zoomed.ppm
[INFO] [stderr] fatal: unable to checkout working tree
[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] 


failed to checkout https://github.com/he-andy/ray-tracer

Caused by:
    command failed: exit status: 128