[INFO] fetching crate gmp-mpfr-sys 1.4.2...
[INFO] checking gmp-mpfr-sys-1.4.2 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate gmp-mpfr-sys 1.4.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gmp-mpfr-sys 1.4.2 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmp-mpfr-sys 1.4.2
[INFO] finished tweaking crates.io crate gmp-mpfr-sys 1.4.2
[INFO] tweaked toml for crates.io crate gmp-mpfr-sys 1.4.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a86267d7e8a8da163a638d9c613c07cfd875299ec9d2e76a10518550c9a253ad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a86267d7e8a8da163a638d9c613c07cfd875299ec9d2e76a10518550c9a253ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a86267d7e8a8da163a638d9c613c07cfd875299ec9d2e76a10518550c9a253ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a86267d7e8a8da163a638d9c613c07cfd875299ec9d2e76a10518550c9a253ad", kill_on_drop: false }`
[INFO] [stdout] a86267d7e8a8da163a638d9c613c07cfd875299ec9d2e76a10518550c9a253ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42194489aca6d8513188f3d7c0ae973fca40a48cc7bc3d36d3e99c61f0fef59b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42194489aca6d8513188f3d7c0ae973fca40a48cc7bc3d36d3e99c61f0fef59b", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.2 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "42194489aca6d8513188f3d7c0ae973fca40a48cc7bc3d36d3e99c61f0fef59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42194489aca6d8513188f3d7c0ae973fca40a48cc7bc3d36d3e99c61f0fef59b", kill_on_drop: false }`
[INFO] [stdout] 42194489aca6d8513188f3d7c0ae973fca40a48cc7bc3d36d3e99c61f0fef59b