[INFO] fetching crate rnt 0.1.0...
[INFO] checking rnt-0.1.0 against master#75dbd5b8c3e3e3e7673caa890422e654d39b815e for pr-95985
[INFO] extracting crate rnt 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rnt 0.1.0 on toolchain 75dbd5b8c3e3e3e7673caa890422e654d39b815e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rnt 0.1.0
[INFO] finished tweaking crates.io crate rnt 0.1.0
[INFO] tweaked toml for crates.io crate rnt 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rug v1.17.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5392f70e7d1db5091e66a8904efe29f647ae11a3e3dc7e26e7cb7d136ee29a2b
[INFO] running `Command { std: "docker" "start" "-a" "5392f70e7d1db5091e66a8904efe29f647ae11a3e3dc7e26e7cb7d136ee29a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5392f70e7d1db5091e66a8904efe29f647ae11a3e3dc7e26e7cb7d136ee29a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5392f70e7d1db5091e66a8904efe29f647ae11a3e3dc7e26e7cb7d136ee29a2b", kill_on_drop: false }`
[INFO] [stdout] 5392f70e7d1db5091e66a8904efe29f647ae11a3e3dc7e26e7cb7d136ee29a2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76c49422a88d9ca6b6ac6c4b1c06a088bd5ce5278065884483071ea9126b95e2
[INFO] running `Command { std: "docker" "start" "-a" "76c49422a88d9ca6b6ac6c4b1c06a088bd5ce5278065884483071ea9126b95e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.10
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.17.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "76c49422a88d9ca6b6ac6c4b1c06a088bd5ce5278065884483071ea9126b95e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c49422a88d9ca6b6ac6c4b1c06a088bd5ce5278065884483071ea9126b95e2", kill_on_drop: false }`
[INFO] [stdout] 76c49422a88d9ca6b6ac6c4b1c06a088bd5ce5278065884483071ea9126b95e2