[INFO] cloning repository https://github.com/cydanil/numerals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cydanil/numerals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcydanil%2Fnumerals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcydanil%2Fnumerals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4273a4c6d225aefc592ea83b7c0d17e9af23321
[INFO] building cydanil/numerals against master#a29f341a8ac4e9325a5e37027b4215f50a76d06f for pr-101929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcydanil%2Fnumerals" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cydanil/numerals on toolchain a29f341a8ac4e9325a5e37027b4215f50a76d06f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a29f341a8ac4e9325a5e37027b4215f50a76d06f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cydanil/numerals
[INFO] finished tweaking git repo https://github.com/cydanil/numerals
[INFO] tweaked toml for git repo https://github.com/cydanil/numerals written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cydanil/numerals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a29f341a8ac4e9325a5e37027b4215f50a76d06f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+a29f341a8ac4e9325a5e37027b4215f50a76d06f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76aedd9b71a1a54931231a9bc0aeda0a2d134a6853661928a7fb628b4366aae1
[INFO] running `Command { std: "docker" "start" "-a" "76aedd9b71a1a54931231a9bc0aeda0a2d134a6853661928a7fb628b4366aae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76aedd9b71a1a54931231a9bc0aeda0a2d134a6853661928a7fb628b4366aae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76aedd9b71a1a54931231a9bc0aeda0a2d134a6853661928a7fb628b4366aae1", kill_on_drop: false }`
[INFO] [stdout] 76aedd9b71a1a54931231a9bc0aeda0a2d134a6853661928a7fb628b4366aae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+a29f341a8ac4e9325a5e37027b4215f50a76d06f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfed542d241071d4548a6b8438cc192f83ffdbbab70fd9c5d51a7894855d3eb6
[INFO] running `Command { std: "docker" "start" "-a" "dfed542d241071d4548a6b8438cc192f83ffdbbab70fd9c5d51a7894855d3eb6", 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" "dfed542d241071d4548a6b8438cc192f83ffdbbab70fd9c5d51a7894855d3eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfed542d241071d4548a6b8438cc192f83ffdbbab70fd9c5d51a7894855d3eb6", kill_on_drop: false }`
[INFO] [stdout] dfed542d241071d4548a6b8438cc192f83ffdbbab70fd9c5d51a7894855d3eb6