[INFO] fetching crate first_crate 0.2.0...
[INFO] checking first_crate-0.2.0 against 04e9298c771dcc8a88d17c0257382c1e4ae3da97 for pr-164582
[INFO] extracting crate first_crate 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate first_crate 0.2.0
[INFO] finished tweaking crates.io crate first_crate 0.2.0
[INFO] tweaked toml for crates.io crate first_crate 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate first_crate 0.2.0 on toolchain 04e9298c771dcc8a88d17c0257382c1e4ae3da97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "generate-lockfile" "--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
[INFO] checking first_crate-0.2.0 against 04e9298c771dcc8a88d17c0257382c1e4ae3da97 for pr-164582
[INFO] extracting crate first_crate 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate first_crate 0.2.0
[INFO] finished tweaking crates.io crate first_crate 0.2.0
[INFO] tweaked toml for crates.io crate first_crate 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate first_crate 0.2.0 on toolchain 04e9298c771dcc8a88d17c0257382c1e4ae3da97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "generate-lockfile" "--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
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0
[INFO] running `Command { std: "docker" "start" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0" "/opt/rustwide/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0" "/opt/rustwide/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking first_crate v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0", kill_on_drop: false }`
[INFO] [stdout] 9f8de0b2857259e65caa4262a678f52a71869304848b1685710f2c7080a863d0