[INFO] fetching crate cmd_lib_core 0.4.0...
[INFO] testing cmd_lib_core-0.4.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate cmd_lib_core 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cmd_lib_core 0.4.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cmd_lib_core 0.4.0
[INFO] finished tweaking crates.io crate cmd_lib_core 0.4.0
[INFO] tweaked toml for crates.io crate cmd_lib_core 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90f547a7add3ce7fd36a1ef70b368a45f5d0cca55669099cf5ccc6ce3442bebe
[INFO] running `Command { std: "docker" "start" "-a" "90f547a7add3ce7fd36a1ef70b368a45f5d0cca55669099cf5ccc6ce3442bebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90f547a7add3ce7fd36a1ef70b368a45f5d0cca55669099cf5ccc6ce3442bebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f547a7add3ce7fd36a1ef70b368a45f5d0cca55669099cf5ccc6ce3442bebe", kill_on_drop: false }`
[INFO] [stdout] 90f547a7add3ce7fd36a1ef70b368a45f5d0cca55669099cf5ccc6ce3442bebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4ade6b65cb8b2d1d6cc365f94ba96aa93abda41eb29d64833b2e301f3a1df7
[INFO] running `Command { std: "docker" "start" "-a" "de4ade6b65cb8b2d1d6cc365f94ba96aa93abda41eb29d64833b2e301f3a1df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmd_lib_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "de4ade6b65cb8b2d1d6cc365f94ba96aa93abda41eb29d64833b2e301f3a1df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4ade6b65cb8b2d1d6cc365f94ba96aa93abda41eb29d64833b2e301f3a1df7", kill_on_drop: false }`
[INFO] [stdout] de4ade6b65cb8b2d1d6cc365f94ba96aa93abda41eb29d64833b2e301f3a1df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d613771895b6353bf4398032b6e9c7b146ceea4977c02e07bbd9b693b7e59eb1
[INFO] running `Command { std: "docker" "start" "-a" "d613771895b6353bf4398032b6e9c7b146ceea4977c02e07bbd9b693b7e59eb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmd_lib_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "d613771895b6353bf4398032b6e9c7b146ceea4977c02e07bbd9b693b7e59eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d613771895b6353bf4398032b6e9c7b146ceea4977c02e07bbd9b693b7e59eb1", kill_on_drop: false }`
[INFO] [stdout] d613771895b6353bf4398032b6e9c7b146ceea4977c02e07bbd9b693b7e59eb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b10cd9100aabdf5009070f8f37080be455f9e7f2d77f52181f971ee9294bff7c
[INFO] running `Command { std: "docker" "start" "-a" "b10cd9100aabdf5009070f8f37080be455f9e7f2d77f52181f971ee9294bff7c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cmd_lib_core-f1000a8eaa7d4235)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stderr] fatal runtime error: IO Safety violation: owned file descriptor already closed
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/cmd_lib_core-f1000a8eaa7d4235` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "b10cd9100aabdf5009070f8f37080be455f9e7f2d77f52181f971ee9294bff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10cd9100aabdf5009070f8f37080be455f9e7f2d77f52181f971ee9294bff7c", kill_on_drop: false }`
[INFO] [stdout] b10cd9100aabdf5009070f8f37080be455f9e7f2d77f52181f971ee9294bff7c
