[INFO] cloning repository https://github.com/gretchenfrage/rustc-bug-aug-15-20-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gretchenfrage/rustc-bug-aug-15-20-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgretchenfrage%2Frustc-bug-aug-15-20-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgretchenfrage%2Frustc-bug-aug-15-20-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbb9bb3075450c8f28b05e6e6c2a3df9bfc9f3d0
[INFO] checking gretchenfrage/rustc-bug-aug-15-20-1 against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgretchenfrage%2Frustc-bug-aug-15-20-1" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gretchenfrage/rustc-bug-aug-15-20-1 on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gretchenfrage/rustc-bug-aug-15-20-1
[INFO] finished tweaking git repo https://github.com/gretchenfrage/rustc-bug-aug-15-20-1
[INFO] tweaked toml for git repo https://github.com/gretchenfrage/rustc-bug-aug-15-20-1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gretchenfrage/rustc-bug-aug-15-20-1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds


no output for 300 seconds