[INFO] fetching crate rug 1.11.0...
[INFO] checking rug-1.11.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate rug 1.11.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rug 1.11.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] a98f9a2c072bfe935092d1687a9cede875a0ff519ab5e603741845bc33a09845
[INFO] running `Command { std: "docker" "start" "-a" "a98f9a2c072bfe935092d1687a9cede875a0ff519ab5e603741845bc33a09845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a98f9a2c072bfe935092d1687a9cede875a0ff519ab5e603741845bc33a09845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98f9a2c072bfe935092d1687a9cede875a0ff519ab5e603741845bc33a09845", kill_on_drop: false }`
[INFO] [stdout] a98f9a2c072bfe935092d1687a9cede875a0ff519ab5e603741845bc33a09845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 949d18c0b2b5d2724be0046cc7688863162427972f58ec5e01e6992cd7b466be
[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" "949d18c0b2b5d2724be0046cc7688863162427972f58ec5e01e6992cd7b466be", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.1
[INFO] [stderr]    Compiling rug v1.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking az v1.0.0
[INFO] [stderr]     Checking serde_test v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking bincode v1.3.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "949d18c0b2b5d2724be0046cc7688863162427972f58ec5e01e6992cd7b466be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949d18c0b2b5d2724be0046cc7688863162427972f58ec5e01e6992cd7b466be", kill_on_drop: false }`
[INFO] [stdout] 949d18c0b2b5d2724be0046cc7688863162427972f58ec5e01e6992cd7b466be