[INFO] cloning repository https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takagisou/a_half_hour_to_learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab1c55da334154869e4e552c04f3f9e4e82a2135
[INFO] building takagisou/a_half_hour_to_learn_rust against try#615edd3ad1cf6871c977dc900317cb6c2070fd6b for pr-97334
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takagisou/a_half_hour_to_learn_rust on toolchain 615edd3ad1cf6871c977dc900317cb6c2070fd6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] finished tweaking git repo https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] tweaked toml for git repo https://github.com/takagisou/a_half_hour_to_learn_rust written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/takagisou/a_half_hour_to_learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbe844a0cf67b1cc5dd2b45abd9574eb945a0bf63410feef0221980cc217d9a4
[INFO] running `Command { std: "docker" "start" "-a" "cbe844a0cf67b1cc5dd2b45abd9574eb945a0bf63410feef0221980cc217d9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbe844a0cf67b1cc5dd2b45abd9574eb945a0bf63410feef0221980cc217d9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe844a0cf67b1cc5dd2b45abd9574eb945a0bf63410feef0221980cc217d9a4", kill_on_drop: false }`
[INFO] [stdout] cbe844a0cf67b1cc5dd2b45abd9574eb945a0bf63410feef0221980cc217d9a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d529a1917f4985338bc72ae584a8d0ed0da557f9dccaad1bcfb6c4214ca73bde
[INFO] running `Command { std: "docker" "start" "-a" "d529a1917f4985338bc72ae584a8d0ed0da557f9dccaad1bcfb6c4214ca73bde", 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" "d529a1917f4985338bc72ae584a8d0ed0da557f9dccaad1bcfb6c4214ca73bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d529a1917f4985338bc72ae584a8d0ed0da557f9dccaad1bcfb6c4214ca73bde", kill_on_drop: false }`
[INFO] [stdout] d529a1917f4985338bc72ae584a8d0ed0da557f9dccaad1bcfb6c4214ca73bde