[INFO] fetching crate rug-fft 0.1.2...
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] crate rug-fft 0.1.2 is already in cache
[INFO] checking rug-fft-0.1.2 against master#ea6ab1bd845790fb31ba790d2c7aec898f89fe62 for pr-99880
[INFO] extracting crate rug-fft 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rug-fft 0.1.2 on toolchain ea6ab1bd845790fb31ba790d2c7aec898f89fe62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug-fft 0.1.2
[INFO] finished tweaking crates.io crate rug-fft 0.1.2
[INFO] tweaked toml for crates.io crate rug-fft 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rug-fft 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "fetch" "--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 quickcheck_macros v0.9.1
[INFO] [stderr]   Downloaded az v1.1.1
[INFO] [stderr]   Downloaded rug v1.13.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbcf932843963e556c8d63c5ebc7fff9e4889a055b352b659fb2d3509457b06c
[INFO] running `Command { std: "docker" "start" "-a" "dbcf932843963e556c8d63c5ebc7fff9e4889a055b352b659fb2d3509457b06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbcf932843963e556c8d63c5ebc7fff9e4889a055b352b659fb2d3509457b06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbcf932843963e556c8d63c5ebc7fff9e4889a055b352b659fb2d3509457b06c", kill_on_drop: false }`
[INFO] [stdout] dbcf932843963e556c8d63c5ebc7fff9e4889a055b352b659fb2d3509457b06c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 357e41c728c9f3debcb3425be461571f76f6831e225b4e8702c7a852faf9d8ba
[INFO] running `Command { std: "docker" "start" "-a" "357e41c728c9f3debcb3425be461571f76f6831e225b4e8702c7a852faf9d8ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.6
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling az v1.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rug v1.13.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "357e41c728c9f3debcb3425be461571f76f6831e225b4e8702c7a852faf9d8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "357e41c728c9f3debcb3425be461571f76f6831e225b4e8702c7a852faf9d8ba", kill_on_drop: false }`
[INFO] [stdout] 357e41c728c9f3debcb3425be461571f76f6831e225b4e8702c7a852faf9d8ba