[INFO] fetching crate rug-fft 0.1.1...
[INFO] testing rug-fft-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rug-fft 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rug-fft 0.1.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug-fft 0.1.1
[INFO] finished tweaking crates.io crate rug-fft 0.1.1
[INFO] tweaked toml for crates.io crate rug-fft 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rug-fft 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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 proc-macro2 v1.0.21
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded syn v1.0.41
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 4e647f8f568da31fa15dd1babb8f78796a9fec004cef865b92b740529a6e6f04
[INFO] running `Command { std: "docker" "start" "-a" "4e647f8f568da31fa15dd1babb8f78796a9fec004cef865b92b740529a6e6f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e647f8f568da31fa15dd1babb8f78796a9fec004cef865b92b740529a6e6f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e647f8f568da31fa15dd1babb8f78796a9fec004cef865b92b740529a6e6f04", kill_on_drop: false }`
[INFO] [stdout] 4e647f8f568da31fa15dd1babb8f78796a9fec004cef865b92b740529a6e6f04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] 83ff6fbd9b1eed165d5bfd16533d9bc89b770851ee3051627ba2345df5a3db0c
[INFO] running `Command { std: "docker" "start" "-a" "83ff6fbd9b1eed165d5bfd16533d9bc89b770851ee3051627ba2345df5a3db0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.0
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]    Compiling az v1.0.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "83ff6fbd9b1eed165d5bfd16533d9bc89b770851ee3051627ba2345df5a3db0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ff6fbd9b1eed165d5bfd16533d9bc89b770851ee3051627ba2345df5a3db0c", kill_on_drop: false }`
[INFO] [stdout] 83ff6fbd9b1eed165d5bfd16533d9bc89b770851ee3051627ba2345df5a3db0c