[INFO] fetching crate gmp-mpfr-sys 1.4.3...
[INFO] checking gmp-mpfr-sys-1.4.3 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate gmp-mpfr-sys 1.4.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gmp-mpfr-sys 1.4.3 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmp-mpfr-sys 1.4.3
[INFO] finished tweaking crates.io crate gmp-mpfr-sys 1.4.3
[INFO] tweaked toml for crates.io crate gmp-mpfr-sys 1.4.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20f69c6bc2f52019e3a9a62a4163cbf0415b5d4be42366f4f822a05e75ba5453
[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" "20f69c6bc2f52019e3a9a62a4163cbf0415b5d4be42366f4f822a05e75ba5453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20f69c6bc2f52019e3a9a62a4163cbf0415b5d4be42366f4f822a05e75ba5453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f69c6bc2f52019e3a9a62a4163cbf0415b5d4be42366f4f822a05e75ba5453", kill_on_drop: false }`
[INFO] [stdout] 20f69c6bc2f52019e3a9a62a4163cbf0415b5d4be42366f4f822a05e75ba5453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e760b6a4b012cec9838a31d9f6058f893bee072fd1e3fc732a27a0b9c4fd51f0
[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" "e760b6a4b012cec9838a31d9f6058f893bee072fd1e3fc732a27a0b9c4fd51f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libc v0.2.89
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e760b6a4b012cec9838a31d9f6058f893bee072fd1e3fc732a27a0b9c4fd51f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e760b6a4b012cec9838a31d9f6058f893bee072fd1e3fc732a27a0b9c4fd51f0", kill_on_drop: false }`
[INFO] [stdout] e760b6a4b012cec9838a31d9f6058f893bee072fd1e3fc732a27a0b9c4fd51f0