[INFO] fetching crate cmd_lib_core 0.4.0...
[INFO] testing cmd_lib_core-0.4.0 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate cmd_lib_core 0.4.0 into /workspace/builds/worker-6-tc1/source
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cmd_lib_core 0.4.0 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d165948425b8c64b01fbb5ec280e6d01cc407b97ce9bebda4b63c0dbe2eb415e
[INFO] running `Command { std: "docker" "start" "-a" "d165948425b8c64b01fbb5ec280e6d01cc407b97ce9bebda4b63c0dbe2eb415e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d165948425b8c64b01fbb5ec280e6d01cc407b97ce9bebda4b63c0dbe2eb415e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d165948425b8c64b01fbb5ec280e6d01cc407b97ce9bebda4b63c0dbe2eb415e", kill_on_drop: false }`
[INFO] [stdout] d165948425b8c64b01fbb5ec280e6d01cc407b97ce9bebda4b63c0dbe2eb415e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c4dbb3c60c71f2b1fd3c5ab299c153ec264e1980cb099cba1e1ce448a89065b
[INFO] running `Command { std: "docker" "start" "-a" "1c4dbb3c60c71f2b1fd3c5ab299c153ec264e1980cb099cba1e1ce448a89065b", 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "1c4dbb3c60c71f2b1fd3c5ab299c153ec264e1980cb099cba1e1ce448a89065b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4dbb3c60c71f2b1fd3c5ab299c153ec264e1980cb099cba1e1ce448a89065b", kill_on_drop: false }`
[INFO] [stdout] 1c4dbb3c60c71f2b1fd3c5ab299c153ec264e1980cb099cba1e1ce448a89065b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3404bf3cd2e83dd54b2cdf2f0fe8402866c570b9b3a2d1b2a265ebd192197128
[INFO] running `Command { std: "docker" "start" "-a" "3404bf3cd2e83dd54b2cdf2f0fe8402866c570b9b3a2d1b2a265ebd192197128", 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 1.06s
[INFO] running `Command { std: "docker" "inspect" "3404bf3cd2e83dd54b2cdf2f0fe8402866c570b9b3a2d1b2a265ebd192197128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3404bf3cd2e83dd54b2cdf2f0fe8402866c570b9b3a2d1b2a265ebd192197128", kill_on_drop: false }`
[INFO] [stdout] 3404bf3cd2e83dd54b2cdf2f0fe8402866c570b9b3a2d1b2a265ebd192197128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43441005669d5f4ae843c5196240bf9deac5108360646a4565ea2d8fc033abdb
[INFO] running `Command { std: "docker" "start" "-a" "43441005669d5f4ae843c5196240bf9deac5108360646a4565ea2d8fc033abdb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cmd_lib_core-51116cd5aad64415)
[INFO] [stdout] running 10 tests
[INFO] [stderr] fatal runtime error: IO Safety violation: owned file descriptor already closed, aborting
[INFO] [stdout] test proc_env::tests::test_pwd_set ...       1       1       5
[INFO] [stderr] ls: cannot access '/nofile': No such file or directory
[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-51116cd5aad64415` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "43441005669d5f4ae843c5196240bf9deac5108360646a4565ea2d8fc033abdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43441005669d5f4ae843c5196240bf9deac5108360646a4565ea2d8fc033abdb", kill_on_drop: false }`
[INFO] [stdout] 43441005669d5f4ae843c5196240bf9deac5108360646a4565ea2d8fc033abdb
