[INFO] fetching crate rug-polynomial 0.1.1...
[INFO] checking rug-polynomial-0.1.1 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate rug-polynomial 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rug-polynomial 0.1.1 on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug-polynomial 0.1.1
[INFO] finished tweaking crates.io crate rug-polynomial 0.1.1
[INFO] tweaked toml for crates.io crate rug-polynomial 0.1.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate rug-polynomial 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f4fc70514d6ed9942c09633e6bd29e4a5f139eefe1fd67f888a609b62a396fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f4fc70514d6ed9942c09633e6bd29e4a5f139eefe1fd67f888a609b62a396fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f4fc70514d6ed9942c09633e6bd29e4a5f139eefe1fd67f888a609b62a396fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4fc70514d6ed9942c09633e6bd29e4a5f139eefe1fd67f888a609b62a396fa", kill_on_drop: false }`
[INFO] [stdout] 1f4fc70514d6ed9942c09633e6bd29e4a5f139eefe1fd67f888a609b62a396fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bfee45cc3a2cdcc79420d86ef8d0631b64ff74bb3778ba5be0e3d4210d07b7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5bfee45cc3a2cdcc79420d86ef8d0631b64ff74bb3778ba5be0e3d4210d07b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]     Checking az v1.0.0
[INFO] [stderr]    Compiling flint-sys v0.1.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "5bfee45cc3a2cdcc79420d86ef8d0631b64ff74bb3778ba5be0e3d4210d07b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bfee45cc3a2cdcc79420d86ef8d0631b64ff74bb3778ba5be0e3d4210d07b7d", kill_on_drop: false }`
[INFO] [stdout] 5bfee45cc3a2cdcc79420d86ef8d0631b64ff74bb3778ba5be0e3d4210d07b7d