[INFO] fetching crate mpmfnum 0.2.0...
[INFO] checking mpmfnum-0.2.0 against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] extracting crate mpmfnum 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mpmfnum 0.2.0
[INFO] finished tweaking crates.io crate mpmfnum 0.2.0
[INFO] tweaked toml for crates.io crate mpmfnum 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpmfnum 0.2.0 on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb38890267e6c3617236d73647e2f224c2ae2b5fdc3cf498e159cead7e8690ab
[INFO] running `Command { std: "docker" "start" "-a" "cb38890267e6c3617236d73647e2f224c2ae2b5fdc3cf498e159cead7e8690ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb38890267e6c3617236d73647e2f224c2ae2b5fdc3cf498e159cead7e8690ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb38890267e6c3617236d73647e2f224c2ae2b5fdc3cf498e159cead7e8690ab", kill_on_drop: false }`
[INFO] [stdout] cb38890267e6c3617236d73647e2f224c2ae2b5fdc3cf498e159cead7e8690ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6c0deb1821ce9cf42a4a7c7a492d09e73377e1a11de5508c830d97de8876b75
[INFO] running `Command { std: "docker" "start" "-a" "f6c0deb1821ce9cf42a4a7c7a492d09e73377e1a11de5508c830d97de8876b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.8
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.28.0
[INFO] [stderr]     Checking num-integer v0.1.46
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f6c0deb1821ce9cf42a4a7c7a492d09e73377e1a11de5508c830d97de8876b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6c0deb1821ce9cf42a4a7c7a492d09e73377e1a11de5508c830d97de8876b75", kill_on_drop: false }`
[INFO] [stdout] f6c0deb1821ce9cf42a4a7c7a492d09e73377e1a11de5508c830d97de8876b75