[INFO] cloning repository https://github.com/echap1/CYS431-PEX1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/echap1/CYS431-PEX1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechap1%2FCYS431-PEX1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechap1%2FCYS431-PEX1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 841aa96f2c636a96fc02683b66d6a74740c4171c
[INFO] checking echap1/CYS431-PEX1 against master#2972b5e59f1c5529b6ba770437812fd83ab4ebd4 for pr-154781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechap1%2FCYS431-PEX1" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/echap1/CYS431-PEX1
[INFO] finished tweaking git repo https://github.com/echap1/CYS431-PEX1
[INFO] tweaked toml for git repo https://github.com/echap1/CYS431-PEX1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/echap1/CYS431-PEX1 on toolchain 2972b5e59f1c5529b6ba770437812fd83ab4ebd4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/echap1/CYS431-PEX1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitvector v0.1.5
[INFO] [stderr]   Downloaded rug v1.24.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e039955c88aaf0ff6bf59e87e1a537dce71ab4c27b6c46d2f2d872f8e9cf26f4
[INFO] running `Command { std: "docker" "start" "-a" "e039955c88aaf0ff6bf59e87e1a537dce71ab4c27b6c46d2f2d872f8e9cf26f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e039955c88aaf0ff6bf59e87e1a537dce71ab4c27b6c46d2f2d872f8e9cf26f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e039955c88aaf0ff6bf59e87e1a537dce71ab4c27b6c46d2f2d872f8e9cf26f4", kill_on_drop: false }`
[INFO] [stdout] e039955c88aaf0ff6bf59e87e1a537dce71ab4c27b6c46d2f2d872f8e9cf26f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81442b56a029628a36585a47186e304202fbd9ca3d1cc609c2d686e527e26eab
[INFO] running `Command { std: "docker" "start" "-a" "81442b56a029628a36585a47186e304202fbd9ca3d1cc609c2d686e527e26eab", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling rug v1.24.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking bitvector v0.1.5
[INFO] [stderr]     Checking itertools v0.12.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "81442b56a029628a36585a47186e304202fbd9ca3d1cc609c2d686e527e26eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81442b56a029628a36585a47186e304202fbd9ca3d1cc609c2d686e527e26eab", kill_on_drop: false }`
[INFO] [stdout] 81442b56a029628a36585a47186e304202fbd9ca3d1cc609c2d686e527e26eab