[INFO] fetching crate stdio-override 0.2.0...
[INFO] testing stdio-override-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate stdio-override 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate stdio-override 0.2.0
[INFO] finished tweaking crates.io crate stdio-override 0.2.0
[INFO] tweaked toml for crates.io crate stdio-override 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stdio-override 0.2.0 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] crate crates.io crate stdio-override 0.2.0 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" "+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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6af40a38debb2a5348499ce7917d1a258536cf4c718a71be6cdd710a5453b762
[INFO] running `Command { std: "docker" "start" "-a" "6af40a38debb2a5348499ce7917d1a258536cf4c718a71be6cdd710a5453b762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6af40a38debb2a5348499ce7917d1a258536cf4c718a71be6cdd710a5453b762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af40a38debb2a5348499ce7917d1a258536cf4c718a71be6cdd710a5453b762", kill_on_drop: false }`
[INFO] [stdout] 6af40a38debb2a5348499ce7917d1a258536cf4c718a71be6cdd710a5453b762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b7173fcb6dbcb929b9c5842ae0395b035c63896b402d41553ddf1fbaf3e4bef5
[INFO] running `Command { std: "docker" "start" "-a" "b7173fcb6dbcb929b9c5842ae0395b035c63896b402d41553ddf1fbaf3e4bef5", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdio-override v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "b7173fcb6dbcb929b9c5842ae0395b035c63896b402d41553ddf1fbaf3e4bef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7173fcb6dbcb929b9c5842ae0395b035c63896b402d41553ddf1fbaf3e4bef5", kill_on_drop: false }`
[INFO] [stdout] b7173fcb6dbcb929b9c5842ae0395b035c63896b402d41553ddf1fbaf3e4bef5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7e82fe206191817456173457dfd71869f768c2cc9dd7626fd9ed354c77a7b8a1
[INFO] running `Command { std: "docker" "start" "-a" "7e82fe206191817456173457dfd71869f768c2cc9dd7626fd9ed354c77a7b8a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling os_pipe v1.2.1
[INFO] [stderr]    Compiling stdio-override v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "7e82fe206191817456173457dfd71869f768c2cc9dd7626fd9ed354c77a7b8a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e82fe206191817456173457dfd71869f768c2cc9dd7626fd9ed354c77a7b8a1", kill_on_drop: false }`
[INFO] [stdout] 7e82fe206191817456173457dfd71869f768c2cc9dd7626fd9ed354c77a7b8a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 366b3da26e33e9aa275fe105a32ab2f98c8734ce9f1da825fb63146978f3b63a
[INFO] running `Command { std: "docker" "start" "-a" "366b3da26e33e9aa275fe105a32ab2f98c8734ce9f1da825fb63146978f3b63a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stdio_override-331a1a4f1e0ace5f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] Outside! (1/2)
[INFO] [stderr] panicked at panicked at src/lib.rs:470:87:
[INFO] [stderr] called `Option::unwrap()` on a `None` value
[INFO] [stderr] thread panicked while processing panic. aborting.
[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/stdio_override-331a1a4f1e0ace5f` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "366b3da26e33e9aa275fe105a32ab2f98c8734ce9f1da825fb63146978f3b63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "366b3da26e33e9aa275fe105a32ab2f98c8734ce9f1da825fb63146978f3b63a", kill_on_drop: false }`
[INFO] [stdout] 366b3da26e33e9aa275fe105a32ab2f98c8734ce9f1da825fb63146978f3b63a