[INFO] fetching crate rug-polynomial 0.2.5...
[INFO] testing rug-polynomial-0.2.5 against 1.91.0 for beta-1.92-2
[INFO] extracting crate rug-polynomial 0.2.5 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rug-polynomial 0.2.5
[INFO] finished tweaking crates.io crate rug-polynomial 0.2.5
[INFO] tweaked toml for crates.io crate rug-polynomial 0.2.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug-polynomial 0.2.5 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rug-polynomial 0.2.5 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v0.9.2
[INFO] [stderr]   Downloaded rug-fft v0.1.2
[INFO] [stderr]   Downloaded quickcheck_macros v0.9.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded rug v1.18.0
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.13
[INFO] [stderr]   Downloaded flint-sys v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ae6929f10b69d3ac7c337cd092e1ea858fa61b95e0e76b9b5c8a295c26ca72b
[INFO] running `Command { std: "docker" "start" "-a" "7ae6929f10b69d3ac7c337cd092e1ea858fa61b95e0e76b9b5c8a295c26ca72b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ae6929f10b69d3ac7c337cd092e1ea858fa61b95e0e76b9b5c8a295c26ca72b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae6929f10b69d3ac7c337cd092e1ea858fa61b95e0e76b9b5c8a295c26ca72b", kill_on_drop: false }`
[INFO] [stdout] 7ae6929f10b69d3ac7c337cd092e1ea858fa61b95e0e76b9b5c8a295c26ca72b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 216f8378056c895667c5dac11a5f966ce9395445f3a046005a91fe9fa101db8c
[INFO] running `Command { std: "docker" "start" "-a" "216f8378056c895667c5dac11a5f966ce9395445f3a046005a91fe9fa101db8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.13
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling rug v1.18.0
[INFO] [stderr]    Compiling flint-sys v0.7.3
[INFO] [stderr]    Compiling rug-fft v0.1.2
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "216f8378056c895667c5dac11a5f966ce9395445f3a046005a91fe9fa101db8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216f8378056c895667c5dac11a5f966ce9395445f3a046005a91fe9fa101db8c", kill_on_drop: false }`
[INFO] [stdout] 216f8378056c895667c5dac11a5f966ce9395445f3a046005a91fe9fa101db8c