[INFO] fetching crate stdio-override 0.2.0...
[INFO] testing stdio-override-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate stdio-override 0.2.0 into /workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stdio-override 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04a9a27985b7c88b1c41156c30af712fce53d3cf16b9e9618946cf427437afa9
[INFO] running `Command { std: "docker" "start" "-a" "04a9a27985b7c88b1c41156c30af712fce53d3cf16b9e9618946cf427437afa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04a9a27985b7c88b1c41156c30af712fce53d3cf16b9e9618946cf427437afa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a9a27985b7c88b1c41156c30af712fce53d3cf16b9e9618946cf427437afa9", kill_on_drop: false }`
[INFO] [stdout] 04a9a27985b7c88b1c41156c30af712fce53d3cf16b9e9618946cf427437afa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c89f724f856a920e1fcbf9bccc4eb0eb1b545e4bd77fae5263010a5a7730f567
[INFO] running `Command { std: "docker" "start" "-a" "c89f724f856a920e1fcbf9bccc4eb0eb1b545e4bd77fae5263010a5a7730f567", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling stdio-override v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "c89f724f856a920e1fcbf9bccc4eb0eb1b545e4bd77fae5263010a5a7730f567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c89f724f856a920e1fcbf9bccc4eb0eb1b545e4bd77fae5263010a5a7730f567", kill_on_drop: false }`
[INFO] [stdout] c89f724f856a920e1fcbf9bccc4eb0eb1b545e4bd77fae5263010a5a7730f567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e65117f8c8c09be3920ded4ba238bce95f18a111790a3a4d977c7a4192d09aa
[INFO] running `Command { std: "docker" "start" "-a" "4e65117f8c8c09be3920ded4ba238bce95f18a111790a3a4d977c7a4192d09aa", 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 0.79s
[INFO] running `Command { std: "docker" "inspect" "4e65117f8c8c09be3920ded4ba238bce95f18a111790a3a4d977c7a4192d09aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e65117f8c8c09be3920ded4ba238bce95f18a111790a3a4d977c7a4192d09aa", kill_on_drop: false }`
[INFO] [stdout] 4e65117f8c8c09be3920ded4ba238bce95f18a111790a3a4d977c7a4192d09aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cded9633c7ba47dab636e818da53e3ae91160ecff68330e32e1ad8d86b0d5641
[INFO] running `Command { std: "docker" "start" "-a" "cded9633c7ba47dab636e818da53e3ae91160ecff68330e32e1ad8d86b0d5641", 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-710b7b2cc233125d)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] 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-710b7b2cc233125d` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "cded9633c7ba47dab636e818da53e3ae91160ecff68330e32e1ad8d86b0d5641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cded9633c7ba47dab636e818da53e3ae91160ecff68330e32e1ad8d86b0d5641", kill_on_drop: false }`
[INFO] [stdout] cded9633c7ba47dab636e818da53e3ae91160ecff68330e32e1ad8d86b0d5641