[INFO] fetching crate mpmfnum 0.2.0...
[INFO] checking mpmfnum-0.2.0 against master#fe7294f8793d001bc3f9d197e7cdef6cdb46c15a for pr-153912
[INFO] extracting crate mpmfnum 0.2.0 into /workspace/builds/worker-7-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpmfnum 0.2.0 on toolchain fe7294f8793d001bc3f9d197e7cdef6cdb46c15a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe7294f8793d001bc3f9d197e7cdef6cdb46c15a" "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" "+fe7294f8793d001bc3f9d197e7cdef6cdb46c15a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding gmp-mpfr-sys v1.6.8 (available: v1.7.0)
[INFO] [stderr]       Adding rug v1.28.1 (available: v1.29.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe7294f8793d001bc3f9d197e7cdef6cdb46c15a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.3.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.8
[INFO] [stderr]   Downloaded rug v1.28.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+fe7294f8793d001bc3f9d197e7cdef6cdb46c15a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8981dd6e3cbeec211d762d878f32c976f55aa307a279a2a2f8a46f7862606d7c
[INFO] running `Command { std: "docker" "start" "-a" "8981dd6e3cbeec211d762d878f32c976f55aa307a279a2a2f8a46f7862606d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8981dd6e3cbeec211d762d878f32c976f55aa307a279a2a2f8a46f7862606d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8981dd6e3cbeec211d762d878f32c976f55aa307a279a2a2f8a46f7862606d7c", kill_on_drop: false }`
[INFO] [stdout] 8981dd6e3cbeec211d762d878f32c976f55aa307a279a2a2f8a46f7862606d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+fe7294f8793d001bc3f9d197e7cdef6cdb46c15a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bdde905b545c0d53463887f18609953db528bbf42f772aab1a38030c35c1227
[INFO] running `Command { std: "docker" "start" "-a" "6bdde905b545c0d53463887f18609953db528bbf42f772aab1a38030c35c1227", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.8
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling rug v1.28.1
[INFO] [stderr]     Checking az v1.3.0
[INFO] [stderr]     Checking num-integer v0.1.46
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6bdde905b545c0d53463887f18609953db528bbf42f772aab1a38030c35c1227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdde905b545c0d53463887f18609953db528bbf42f772aab1a38030c35c1227", kill_on_drop: false }`
[INFO] [stdout] 6bdde905b545c0d53463887f18609953db528bbf42f772aab1a38030c35c1227