[INFO] cloning repository https://github.com/ericrobolson/RMercury
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ericrobolson/RMercury" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericrobolson%2FRMercury", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericrobolson%2FRMercury'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19f9bc01ef80b4f130c21bf44e78fc751bdc212b
[INFO] checking ericrobolson/RMercury against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericrobolson%2FRMercury" "/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/ericrobolson/RMercury on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ericrobolson/RMercury
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/ericrobolson/RMercury
[INFO] tweaked toml for git repo https://github.com/ericrobolson/RMercury written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ericrobolson/RMercury 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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds


no output for 300 seconds