[INFO] fetching crate rlfsc 0.1.6...
[INFO] checking rlfsc-0.1.6 against beta for pr-78714
[INFO] extracting crate rlfsc 0.1.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rlfsc 0.1.6 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rlfsc 0.1.6
[INFO] finished tweaking crates.io crate rlfsc 0.1.6
[INFO] tweaked toml for crates.io crate rlfsc 0.1.6 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate rlfsc 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rlimit v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5089f65358e119fea71023f2bea45a74de5fb9fcb34ce5047e91dc858b1f917
[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" "e5089f65358e119fea71023f2bea45a74de5fb9fcb34ce5047e91dc858b1f917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5089f65358e119fea71023f2bea45a74de5fb9fcb34ce5047e91dc858b1f917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5089f65358e119fea71023f2bea45a74de5fb9fcb34ce5047e91dc858b1f917", kill_on_drop: false }`
[INFO] [stdout] e5089f65358e119fea71023f2bea45a74de5fb9fcb34ce5047e91dc858b1f917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 654dd79d42be351bb6ea116298a9dd085944b56d5dbbcd6ca8abcad8de83a7a4
[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" "654dd79d42be351bb6ea116298a9dd085944b56d5dbbcd6ca8abcad8de83a7a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]     Checking az v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling structopt-derive v0.4.12
[INFO] [stderr]     Checking rlimit v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking structopt v0.3.19
[INFO] [stderr]     Checking logos v0.11.4
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "654dd79d42be351bb6ea116298a9dd085944b56d5dbbcd6ca8abcad8de83a7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654dd79d42be351bb6ea116298a9dd085944b56d5dbbcd6ca8abcad8de83a7a4", kill_on_drop: false }`
[INFO] [stdout] 654dd79d42be351bb6ea116298a9dd085944b56d5dbbcd6ca8abcad8de83a7a4