[INFO] fetching crate rug 1.29.0...
[INFO] checking rug-1.29.0 against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585
[INFO] extracting crate rug 1.29.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rug 1.29.0
[INFO] finished tweaking crates.io crate rug 1.29.0
[INFO] tweaked toml for crates.io crate rug 1.29.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug 1.29.0 on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rug 1.29.0 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" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 749e99c1124efb55850c40789c29c35d710cf6db996d76434268e99c23a17eb2
[INFO] running `Command { std: "docker" "start" "-a" "749e99c1124efb55850c40789c29c35d710cf6db996d76434268e99c23a17eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749e99c1124efb55850c40789c29c35d710cf6db996d76434268e99c23a17eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749e99c1124efb55850c40789c29c35d710cf6db996d76434268e99c23a17eb2", kill_on_drop: false }`
[INFO] [stdout] 749e99c1124efb55850c40789c29c35d710cf6db996d76434268e99c23a17eb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f29107257e0c1aef9940e604131261aefecd972c0da4cfa7f2e7bf20fb640b16
[INFO] running `Command { std: "docker" "start" "-a" "f29107257e0c1aef9940e604131261aefecd972c0da4cfa7f2e7bf20fb640b16", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.0
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling rug v1.29.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bincode v1.3.3
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f29107257e0c1aef9940e604131261aefecd972c0da4cfa7f2e7bf20fb640b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f29107257e0c1aef9940e604131261aefecd972c0da4cfa7f2e7bf20fb640b16", kill_on_drop: false }`
[INFO] [stdout] f29107257e0c1aef9940e604131261aefecd972c0da4cfa7f2e7bf20fb640b16