[INFO] fetching crate cmd_lib_core 0.4.0...
[INFO] testing cmd_lib_core-0.4.0 against 1.90.0 for beta-1.91-3
[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 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d91e22d55390c63bb9b063be059a0806a049b7f055a2374888669ba8703c9e5
[INFO] running `Command { std: "docker" "start" "-a" "2d91e22d55390c63bb9b063be059a0806a049b7f055a2374888669ba8703c9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d91e22d55390c63bb9b063be059a0806a049b7f055a2374888669ba8703c9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d91e22d55390c63bb9b063be059a0806a049b7f055a2374888669ba8703c9e5", kill_on_drop: false }`
[INFO] [stdout] 2d91e22d55390c63bb9b063be059a0806a049b7f055a2374888669ba8703c9e5
[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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffb782cf96a0521ceb65e6eb5d74959c44eeafde1545d49fc0342478db42923f
[INFO] running `Command { std: "docker" "start" "-a" "ffb782cf96a0521ceb65e6eb5d74959c44eeafde1545d49fc0342478db42923f", 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 0.46s
[INFO] running `Command { std: "docker" "inspect" "ffb782cf96a0521ceb65e6eb5d74959c44eeafde1545d49fc0342478db42923f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb782cf96a0521ceb65e6eb5d74959c44eeafde1545d49fc0342478db42923f", kill_on_drop: false }`
[INFO] [stdout] ffb782cf96a0521ceb65e6eb5d74959c44eeafde1545d49fc0342478db42923f
[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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82f1cbd0e1c789b5fda2707fcfcdd6d780ad6011eefdc57ba7200f54108a604f
[INFO] running `Command { std: "docker" "start" "-a" "82f1cbd0e1c789b5fda2707fcfcdd6d780ad6011eefdc57ba7200f54108a604f", 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 0.74s
[INFO] running `Command { std: "docker" "inspect" "82f1cbd0e1c789b5fda2707fcfcdd6d780ad6011eefdc57ba7200f54108a604f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82f1cbd0e1c789b5fda2707fcfcdd6d780ad6011eefdc57ba7200f54108a604f", kill_on_drop: false }`
[INFO] [stdout] 82f1cbd0e1c789b5fda2707fcfcdd6d780ad6011eefdc57ba7200f54108a604f
[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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac7e3da6ecbc8a92035020c51297003e46b69792abadbf5a5da6fb1c52081fb1
[INFO] running `Command { std: "docker" "start" "-a" "ac7e3da6ecbc8a92035020c51297003e46b69792abadbf5a5da6fb1c52081fb1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cmd_lib_core-3515b48d39bc03e7)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test proc_env::tests::test_pwd_set ... ok
[INFO] [stdout] test proc_var::tests::test_proc_var_vec ... ok
[INFO] [stdout] test proc_var::tests::test_proc_var_map ... ok
[INFO] [stdout] test proc_var::tests::test_proc_var_u32 ... ok
[INFO] [stderr] fatal runtime error: IO Safety violation: owned file descriptor already closed, aborting
[INFO] [stderr] ls: cannot access '/nofile': No such file or directory
[INFO] [stdout]       1       1       5
[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-3515b48d39bc03e7` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "ac7e3da6ecbc8a92035020c51297003e46b69792abadbf5a5da6fb1c52081fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7e3da6ecbc8a92035020c51297003e46b69792abadbf5a5da6fb1c52081fb1", kill_on_drop: false }`
[INFO] [stdout] ac7e3da6ecbc8a92035020c51297003e46b69792abadbf5a5da6fb1c52081fb1