[INFO] fetching crate rug 1.11.0...
[INFO] documenting rug-1.11.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate rug 1.11.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rug 1.11.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug 1.11.0
[INFO] finished tweaking crates.io crate rug 1.11.0
[INFO] tweaked toml for crates.io crate rug 1.11.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d829c6ad283e168143983e6f707fa443a699d7406aef5268e45c99f4cf4e3731
[INFO] running `Command { std: "docker" "start" "-a" "d829c6ad283e168143983e6f707fa443a699d7406aef5268e45c99f4cf4e3731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d829c6ad283e168143983e6f707fa443a699d7406aef5268e45c99f4cf4e3731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d829c6ad283e168143983e6f707fa443a699d7406aef5268e45c99f4cf4e3731", kill_on_drop: false }`
[INFO] [stdout] d829c6ad283e168143983e6f707fa443a699d7406aef5268e45c99f4cf4e3731
[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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74db9624f4996e0de4b68c7207eb38227b03d017ddd6d715cdb76f1e2c429194
[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" "74db9624f4996e0de4b68c7207eb38227b03d017ddd6d715cdb76f1e2c429194", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling rug v1.11.0 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "74db9624f4996e0de4b68c7207eb38227b03d017ddd6d715cdb76f1e2c429194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74db9624f4996e0de4b68c7207eb38227b03d017ddd6d715cdb76f1e2c429194", kill_on_drop: false }`
[INFO] [stdout] 74db9624f4996e0de4b68c7207eb38227b03d017ddd6d715cdb76f1e2c429194
