[INFO] fetching crate melange 0.1.0...
[INFO] checking melange-0.1.0 against beta for pr-78714
[INFO] extracting crate melange 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate melange 0.1.0 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 melange 0.1.0
[INFO] finished tweaking crates.io crate melange 0.1.0
[INFO] tweaked toml for crates.io crate melange 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta" "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] 33c785b81c486c87cae280c011e1ffddc9952c9548978441b62d0cee8cc30f23
[INFO] running `Command { std: "docker" "start" "-a" "33c785b81c486c87cae280c011e1ffddc9952c9548978441b62d0cee8cc30f23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33c785b81c486c87cae280c011e1ffddc9952c9548978441b62d0cee8cc30f23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c785b81c486c87cae280c011e1ffddc9952c9548978441b62d0cee8cc30f23", kill_on_drop: false }`
[INFO] [stdout] 33c785b81c486c87cae280c011e1ffddc9952c9548978441b62d0cee8cc30f23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 5ced3ef7dd47127bdf00308caa5cb0916e3176852da3e5604a4734c491ae8c83
[INFO] running `Command { std: "docker" "start" "-a" "5ced3ef7dd47127bdf00308caa5cb0916e3176852da3e5604a4734c491ae8c83", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling openblas-src v0.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]    Compiling melange_macros v0.1.0
[INFO] [stderr]     Checking cblas v0.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "5ced3ef7dd47127bdf00308caa5cb0916e3176852da3e5604a4734c491ae8c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ced3ef7dd47127bdf00308caa5cb0916e3176852da3e5604a4734c491ae8c83", kill_on_drop: false }`
[INFO] [stdout] 5ced3ef7dd47127bdf00308caa5cb0916e3176852da3e5604a4734c491ae8c83