[INFO] fetching crate polynomial-ring 0.5.1...
[INFO] building polynomial-ring-0.5.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate polynomial-ring 0.5.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate polynomial-ring 0.5.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate polynomial-ring 0.5.1
[INFO] tweaked toml for crates.io crate polynomial-ring 0.5.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polynomial-ring 0.5.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polynomial-ring 0.5.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.81
[INFO] [stderr]   Downloaded rustversion v1.0.0
[INFO] [stderr]   Downloaded derive-syn-parse v0.1.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.83
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.3.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.3.0
[INFO] [stderr]   Downloaded strum_macros v0.24.0
[INFO] [stderr]   Downloaded ring-algorithm v0.8.0
[INFO] [stderr]   Downloaded az v1.1.0
[INFO] [stderr]   Downloaded auto-impl-ops v0.2.1
[INFO] [stderr]   Downloaded rug v1.18.0
[INFO] [stderr]   Downloaded num-bigint v0.4.5
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded winapi v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.44
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b79eb18ed9a02bcb87e2fdb8900ac80c8231cf83f8b9ef9660043e92affe1702
[INFO] running `Command { std: "docker" "start" "-a" "b79eb18ed9a02bcb87e2fdb8900ac80c8231cf83f8b9ef9660043e92affe1702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b79eb18ed9a02bcb87e2fdb8900ac80c8231cf83f8b9ef9660043e92affe1702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b79eb18ed9a02bcb87e2fdb8900ac80c8231cf83f8b9ef9660043e92affe1702", kill_on_drop: false }`
[INFO] [stdout] b79eb18ed9a02bcb87e2fdb8900ac80c8231cf83f8b9ef9660043e92affe1702
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43ead0b803b0178e1e08eb40269dc7a1e54c22eae100c5bb240c9875c1cec66e
[INFO] running `Command { std: "docker" "start" "-a" "43ead0b803b0178e1e08eb40269dc7a1e54c22eae100c5bb240c9875c1cec66e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling ring-algorithm v0.8.0
[INFO] [stderr]    Compiling rustversion v1.0.0
[INFO] [stderr]    Compiling derive-syn-parse v0.1.5
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling auto-impl-ops v0.2.1
[INFO] [stderr]    Compiling polynomial-ring v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.98s
[INFO] running `Command { std: "docker" "inspect" "43ead0b803b0178e1e08eb40269dc7a1e54c22eae100c5bb240c9875c1cec66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ead0b803b0178e1e08eb40269dc7a1e54c22eae100c5bb240c9875c1cec66e", kill_on_drop: false }`
[INFO] [stdout] 43ead0b803b0178e1e08eb40269dc7a1e54c22eae100c5bb240c9875c1cec66e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a3f10ba800f152aafd5569ce8dc71ddd0272879f01c87470b7f894bd2dc0b4e
[INFO] running `Command { std: "docker" "start" "-a" "3a3f10ba800f152aafd5569ce8dc71ddd0272879f01c87470b7f894bd2dc0b4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling rug v1.18.0
[INFO] [stderr]    Compiling az v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ring-algorithm v0.8.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling polynomial-ring v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-bigint v0.4.5
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3a3f10ba800f152aafd5569ce8dc71ddd0272879f01c87470b7f894bd2dc0b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3f10ba800f152aafd5569ce8dc71ddd0272879f01c87470b7f894bd2dc0b4e", kill_on_drop: false }`
[INFO] [stdout] 3a3f10ba800f152aafd5569ce8dc71ddd0272879f01c87470b7f894bd2dc0b4e