[INFO] fetching crate nc 0.7.15...
[INFO] testing nc-0.7.15 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate nc 0.7.15 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate nc 0.7.15 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nc 0.7.15
[INFO] finished tweaking crates.io crate nc 0.7.15
[INFO] tweaked toml for crates.io crate nc 0.7.15 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate nc 0.7.15 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28ba4fe434255ccbf112a203644a74df9147f88c4b47c9592acfe44c1c582c1b
[INFO] running `Command { std: "docker" "start" "-a" "28ba4fe434255ccbf112a203644a74df9147f88c4b47c9592acfe44c1c582c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28ba4fe434255ccbf112a203644a74df9147f88c4b47c9592acfe44c1c582c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ba4fe434255ccbf112a203644a74df9147f88c4b47c9592acfe44c1c582c1b", kill_on_drop: false }`
[INFO] [stdout] 28ba4fe434255ccbf112a203644a74df9147f88c4b47c9592acfe44c1c582c1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1d0a71fea2077245b8d2cd7c3bb59f0ef4ceb81e038794ecb7f3ff123ed823
[INFO] running `Command { std: "docker" "start" "-a" "3a1d0a71fea2077245b8d2cd7c3bb59f0ef4ceb81e038794ecb7f3ff123ed823", kill_on_drop: false }`
[INFO] [stderr]    Compiling nc v0.7.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "3a1d0a71fea2077245b8d2cd7c3bb59f0ef4ceb81e038794ecb7f3ff123ed823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1d0a71fea2077245b8d2cd7c3bb59f0ef4ceb81e038794ecb7f3ff123ed823", kill_on_drop: false }`
[INFO] [stdout] 3a1d0a71fea2077245b8d2cd7c3bb59f0ef4ceb81e038794ecb7f3ff123ed823
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3775022bc582a33b6b8dfe917b790b6b3629d2d1e6e408f7801107e3dfabeb41
[INFO] running `Command { std: "docker" "start" "-a" "3775022bc582a33b6b8dfe917b790b6b3629d2d1e6e408f7801107e3dfabeb41", kill_on_drop: false }`
[INFO] [stderr]    Compiling nc v0.7.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "3775022bc582a33b6b8dfe917b790b6b3629d2d1e6e408f7801107e3dfabeb41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3775022bc582a33b6b8dfe917b790b6b3629d2d1e6e408f7801107e3dfabeb41", kill_on_drop: false }`
[INFO] [stdout] 3775022bc582a33b6b8dfe917b790b6b3629d2d1e6e408f7801107e3dfabeb41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ddf05522c35d4fc1d01b8a17252419e88650c11aeda37da1a8df90d4eb1942a4
[INFO] running `Command { std: "docker" "start" "-a" "ddf05522c35d4fc1d01b8a17252419e88650c11aeda37da1a8df90d4eb1942a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nc-61157fa244df8e56)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test util::tests::test_read_syscall_list ... ok
[INFO] [stdout] test util::tests::test_syscall_exists ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.77s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nc
[INFO] [stdout] 
[INFO] [stdout] running 224 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name nc --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps -L native=/opt/rustwide/target/debug/build/nc-baefda9498f0962e/out --extern nc=/opt/rustwide/target/debug/deps/libnc-b47e2f271582ce66.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ddf05522c35d4fc1d01b8a17252419e88650c11aeda37da1a8df90d4eb1942a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf05522c35d4fc1d01b8a17252419e88650c11aeda37da1a8df90d4eb1942a4", kill_on_drop: false }`
[INFO] [stdout] ddf05522c35d4fc1d01b8a17252419e88650c11aeda37da1a8df90d4eb1942a4