[INFO] cloning repository https://github.com/mitsuhiko/when
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitsuhiko/when" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwhen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwhen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cc12ce4dcd5f1a155ecb866c70809b2332b5172
[INFO] checking mitsuhiko/when against master#fd17deacce374a4185c882795be162e17b557050 for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwhen" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file web/www/package-lock.json
[INFO] [stderr] error: unable to write file web/www/package.json
[INFO] [stderr] error: unable to write file web/www/style.css
[INFO] [stderr] error: unable to write file web/www/webpack.config.js
[INFO] [stderr] error: unable to write file web/www/webpack.prod.js
[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/mitsuhiko/when

Caused by:
    command failed: exit status: 128