[INFO] fetching crate rug 1.28.0...
[INFO] checking rug-1.28.0 against master#a2db9280539229a3b8a084a09886670a57bc7e9c for pr-147185
[INFO] extracting crate rug 1.28.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rug 1.28.0
[INFO] finished tweaking crates.io crate rug 1.28.0
[INFO] tweaked toml for crates.io crate rug 1.28.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug 1.28.0 on toolchain a2db9280539229a3b8a084a09886670a57bc7e9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2db9280539229a3b8a084a09886670a57bc7e9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rug 1.28.0 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" "+a2db9280539229a3b8a084a09886670a57bc7e9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+a2db9280539229a3b8a084a09886670a57bc7e9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3aa7dfe20bad9e04bbe425c90e2bf5ea00eff88012b88b95c524197e0f6f20e
[INFO] running `Command { std: "docker" "start" "-a" "d3aa7dfe20bad9e04bbe425c90e2bf5ea00eff88012b88b95c524197e0f6f20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3aa7dfe20bad9e04bbe425c90e2bf5ea00eff88012b88b95c524197e0f6f20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3aa7dfe20bad9e04bbe425c90e2bf5ea00eff88012b88b95c524197e0f6f20e", kill_on_drop: false }`
[INFO] [stdout] d3aa7dfe20bad9e04bbe425c90e2bf5ea00eff88012b88b95c524197e0f6f20e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+a2db9280539229a3b8a084a09886670a57bc7e9c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81f5389754a61bc7f6d2637edfb09d6dfec2b10cd27e304d1018ee0a61de7068
[INFO] running `Command { std: "docker" "start" "-a" "81f5389754a61bc7f6d2637edfb09d6dfec2b10cd27e304d1018ee0a61de7068", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.7
[INFO] [stderr]    Compiling rug v1.28.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_test v1.0.177
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "81f5389754a61bc7f6d2637edfb09d6dfec2b10cd27e304d1018ee0a61de7068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f5389754a61bc7f6d2637edfb09d6dfec2b10cd27e304d1018ee0a61de7068", kill_on_drop: false }`
[INFO] [stdout] 81f5389754a61bc7f6d2637edfb09d6dfec2b10cd27e304d1018ee0a61de7068