[INFO] fetching crate gmp-mpfr-sys 1.4.1...
[INFO] checking gmp-mpfr-sys-1.4.1 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate gmp-mpfr-sys 1.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gmp-mpfr-sys 1.4.1 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmp-mpfr-sys 1.4.1
[INFO] finished tweaking crates.io crate gmp-mpfr-sys 1.4.1
[INFO] tweaked toml for crates.io crate gmp-mpfr-sys 1.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] 255f540d245e4386c6cb590d05f2ccfc3add9f6f83a6640ec07e6932a7850a7d
[INFO] running `Command { std: "docker" "start" "-a" "255f540d245e4386c6cb590d05f2ccfc3add9f6f83a6640ec07e6932a7850a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "255f540d245e4386c6cb590d05f2ccfc3add9f6f83a6640ec07e6932a7850a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255f540d245e4386c6cb590d05f2ccfc3add9f6f83a6640ec07e6932a7850a7d", kill_on_drop: false }`
[INFO] [stdout] 255f540d245e4386c6cb590d05f2ccfc3add9f6f83a6640ec07e6932a7850a7d
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f55fb770995dcf174439ddb1292edeabc476aacd6a07dc216da1b3f848661a3
[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" "0f55fb770995dcf174439ddb1292edeabc476aacd6a07dc216da1b3f848661a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.1 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "0f55fb770995dcf174439ddb1292edeabc476aacd6a07dc216da1b3f848661a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f55fb770995dcf174439ddb1292edeabc476aacd6a07dc216da1b3f848661a3", kill_on_drop: false }`
[INFO] [stdout] 0f55fb770995dcf174439ddb1292edeabc476aacd6a07dc216da1b3f848661a3