[INFO] fetching crate rug-maths 0.2.5...
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] crate rug-maths 0.2.5 is already in cache
[INFO] checking rug-maths-0.2.5 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate rug-maths 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rug-maths 0.2.5 on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug-maths 0.2.5
[INFO] finished tweaking crates.io crate rug-maths 0.2.5
[INFO] tweaked toml for crates.io crate rug-maths 0.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.2.1
[INFO] [stderr]   Downloaded maths-traits v0.2.1
[INFO] [stderr]   Downloaded rug v1.17.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f4f413938e8956062562ee918c9a20981556d0933874c990da1af5187b80215
[INFO] running `Command { std: "docker" "start" "-a" "8f4f413938e8956062562ee918c9a20981556d0933874c990da1af5187b80215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f4f413938e8956062562ee918c9a20981556d0933874c990da1af5187b80215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4f413938e8956062562ee918c9a20981556d0933874c990da1af5187b80215", kill_on_drop: false }`
[INFO] [stdout] 8f4f413938e8956062562ee918c9a20981556d0933874c990da1af5187b80215
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 078522aa496399cb6eeca5964f63f4fdcb3bc03feed4588e9ded75ad91fddc9c
[INFO] running `Command { std: "docker" "start" "-a" "078522aa496399cb6eeca5964f63f4fdcb3bc03feed4588e9ded75ad91fddc9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.10
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.17.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking maths-traits v0.2.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "078522aa496399cb6eeca5964f63f4fdcb3bc03feed4588e9ded75ad91fddc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "078522aa496399cb6eeca5964f63f4fdcb3bc03feed4588e9ded75ad91fddc9c", kill_on_drop: false }`
[INFO] [stdout] 078522aa496399cb6eeca5964f63f4fdcb3bc03feed4588e9ded75ad91fddc9c