[INFO] fetching crate rug 1.30.0...
[INFO] checking rug-1.30.0 against da86f4d0726be475afbbffe40cb2f65741c51ad3 for pr-159877
[INFO] extracting crate rug 1.30.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rug 1.30.0
[INFO] finished tweaking crates.io crate rug 1.30.0
[INFO] tweaked toml for crates.io crate rug 1.30.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug 1.30.0 on toolchain da86f4d0726be475afbbffe40cb2f65741c51ad3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rug 1.30.0 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" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "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
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776
[INFO] running `Command { std: "docker" "start" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776", 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" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776" "/opt/rustwide/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776", 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" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776" "/opt/rustwide/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.0
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling rug v1.30.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_test v1.0.177
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776", kill_on_drop: false }`
[INFO] [stdout] f8badc03ee3efd8c4e30acac27cd3859605a0377e6075b0a7d9a662d22188776
