[INFO] fetching crate rug-polynomial 0.2.5...
[INFO] testing rug-polynomial-0.2.5 against try#ecd7b559f89c73ac8f1d318f7501006f37b944b2 for pr-112849
[INFO] extracting crate rug-polynomial 0.2.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rug-polynomial 0.2.5 on toolchain ecd7b559f89c73ac8f1d318f7501006f37b944b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ecd7b559f89c73ac8f1d318f7501006f37b944b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc2/source/Cargo.toml
[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" "+ecd7b559f89c73ac8f1d318f7501006f37b944b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+ecd7b559f89c73ac8f1d318f7501006f37b944b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b4f9e34e6c88ae66f20614d63a485222cbdee326cb3e8b05f79d6342a9c9c00
[INFO] running `Command { std: "docker" "start" "-a" "7b4f9e34e6c88ae66f20614d63a485222cbdee326cb3e8b05f79d6342a9c9c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b4f9e34e6c88ae66f20614d63a485222cbdee326cb3e8b05f79d6342a9c9c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4f9e34e6c88ae66f20614d63a485222cbdee326cb3e8b05f79d6342a9c9c00", kill_on_drop: false }`
[INFO] [stdout] 7b4f9e34e6c88ae66f20614d63a485222cbdee326cb3e8b05f79d6342a9c9c00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+ecd7b559f89c73ac8f1d318f7501006f37b944b2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a525024b85cd69e2a59615a3edb4d0f65eb2d9645d241edd1f3df1384f650c11
[INFO] running `Command { std: "docker" "start" "-a" "a525024b85cd69e2a59615a3edb4d0f65eb2d9645d241edd1f3df1384f650c11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.13
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling serde_derive v1.0.155
[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 syn v1.0.109
[INFO] [stderr]    Compiling rug-fft v0.1.2
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a525024b85cd69e2a59615a3edb4d0f65eb2d9645d241edd1f3df1384f650c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a525024b85cd69e2a59615a3edb4d0f65eb2d9645d241edd1f3df1384f650c11", kill_on_drop: false }`
[INFO] [stdout] a525024b85cd69e2a59615a3edb4d0f65eb2d9645d241edd1f3df1384f650c11