[INFO] cloning repository https://github.com/Akelio-zhang/rustlings-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akelio-zhang/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ead6ed4addc450befb60ff694aa41985a3691776
[INFO] checking Akelio-zhang/rustlings-solutions against try#5c7108a2805ef56743d713d2789c5e802631c9e8 for pr-97739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Akelio-zhang/rustlings-solutions on toolchain 5c7108a2805ef56743d713d2789c5e802631c9e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5c7108a2805ef56743d713d2789c5e802631c9e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Akelio-zhang/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/Akelio-zhang/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/Akelio-zhang/rustlings-solutions written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Akelio-zhang/rustlings-solutions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5c7108a2805ef56743d713d2789c5e802631c9e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+5c7108a2805ef56743d713d2789c5e802631c9e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2207b1f893eceb4cbd5abc55cf5ff2e66b40e34c16e881e01a76183cf357eb48
[INFO] running `Command { std: "docker" "start" "-a" "2207b1f893eceb4cbd5abc55cf5ff2e66b40e34c16e881e01a76183cf357eb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2207b1f893eceb4cbd5abc55cf5ff2e66b40e34c16e881e01a76183cf357eb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2207b1f893eceb4cbd5abc55cf5ff2e66b40e34c16e881e01a76183cf357eb48", kill_on_drop: false }`
[INFO] [stdout] 2207b1f893eceb4cbd5abc55cf5ff2e66b40e34c16e881e01a76183cf357eb48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+5c7108a2805ef56743d713d2789c5e802631c9e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faff8ac37c29a18f7d39223500bc14f1a266da3d3f5a48b9e31889faa0d3d6b9
[INFO] running `Command { std: "docker" "start" "-a" "faff8ac37c29a18f7d39223500bc14f1a266da3d3f5a48b9e31889faa0d3d6b9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "faff8ac37c29a18f7d39223500bc14f1a266da3d3f5a48b9e31889faa0d3d6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faff8ac37c29a18f7d39223500bc14f1a266da3d3f5a48b9e31889faa0d3d6b9", kill_on_drop: false }`
[INFO] [stdout] faff8ac37c29a18f7d39223500bc14f1a266da3d3f5a48b9e31889faa0d3d6b9