[INFO] fetching crate rug-polynomial 0.1.1...
[INFO] checking rug-polynomial-0.1.1 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate rug-polynomial 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rug-polynomial 0.1.1 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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-0/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.0.0
[INFO] [stderr]   Downloaded rug v1.11.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.0
[INFO] [stderr]   Downloaded flint-sys v0.1.1
[INFO] [stderr]   Downloaded rug-fft v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72e855151f502b1f2764b4724e1cb7519af1919f2c8657e8364d30e6bf4e4025
[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" "72e855151f502b1f2764b4724e1cb7519af1919f2c8657e8364d30e6bf4e4025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72e855151f502b1f2764b4724e1cb7519af1919f2c8657e8364d30e6bf4e4025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e855151f502b1f2764b4724e1cb7519af1919f2c8657e8364d30e6bf4e4025", kill_on_drop: false }`
[INFO] [stdout] 72e855151f502b1f2764b4724e1cb7519af1919f2c8657e8364d30e6bf4e4025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85288f089338f9e425e296035299a8f056e1d95afd98a0a01f5104a1ce5b392e
[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" "85288f089338f9e425e296035299a8f056e1d95afd98a0a01f5104a1ce5b392e", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling flint-sys v0.1.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "85288f089338f9e425e296035299a8f056e1d95afd98a0a01f5104a1ce5b392e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85288f089338f9e425e296035299a8f056e1d95afd98a0a01f5104a1ce5b392e", kill_on_drop: false }`
[INFO] [stdout] 85288f089338f9e425e296035299a8f056e1d95afd98a0a01f5104a1ce5b392e