[INFO] fetching crate mime-detective 1.0.0...
[INFO] testing mime-detective-1.0.0 against master#acb8934fd57b3c2740c4abac0a5728c2c9b1423b for pr-101061-1
[INFO] extracting crate mime-detective 1.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mime-detective 1.0.0 on toolchain acb8934fd57b3c2740c4abac0a5728c2c9b1423b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mime-detective 1.0.0
[INFO] finished tweaking crates.io crate mime-detective 1.0.0
[INFO] tweaked toml for crates.io crate mime-detective 1.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mime v0.3.16
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded magic-sys v0.2.1
[INFO] [stderr]   Downloaded magic v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc7bc60a86ffdedde931affd7f0bef9a91b605eacc5d9d382b17684a4bced10c
[INFO] running `Command { std: "docker" "start" "-a" "fc7bc60a86ffdedde931affd7f0bef9a91b605eacc5d9d382b17684a4bced10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc7bc60a86ffdedde931affd7f0bef9a91b605eacc5d9d382b17684a4bced10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc7bc60a86ffdedde931affd7f0bef9a91b605eacc5d9d382b17684a4bced10c", kill_on_drop: false }`
[INFO] [stdout] fc7bc60a86ffdedde931affd7f0bef9a91b605eacc5d9d382b17684a4bced10c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccba383e8cf72d56c39855a4d74d544f720104068908a33361392e62a31331a7
[INFO] running `Command { std: "docker" "start" "-a" "ccba383e8cf72d56c39855a4d74d544f720104068908a33361392e62a31331a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling magic-sys v0.2.1
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling magic v0.12.2
[INFO] [stderr]    Compiling mime-detective v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "ccba383e8cf72d56c39855a4d74d544f720104068908a33361392e62a31331a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccba383e8cf72d56c39855a4d74d544f720104068908a33361392e62a31331a7", kill_on_drop: false }`
[INFO] [stdout] ccba383e8cf72d56c39855a4d74d544f720104068908a33361392e62a31331a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c727bd92a5b133c3cd2dfeb2f55f3421f9f518082610f3e26577251dc58e04d0
[INFO] running `Command { std: "docker" "start" "-a" "c727bd92a5b133c3cd2dfeb2f55f3421f9f518082610f3e26577251dc58e04d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mime-detective v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "c727bd92a5b133c3cd2dfeb2f55f3421f9f518082610f3e26577251dc58e04d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c727bd92a5b133c3cd2dfeb2f55f3421f9f518082610f3e26577251dc58e04d0", kill_on_drop: false }`
[INFO] [stdout] c727bd92a5b133c3cd2dfeb2f55f3421f9f518082610f3e26577251dc58e04d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+acb8934fd57b3c2740c4abac0a5728c2c9b1423b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] abf257b8578c32abe41096a4f1ca15817b9d8a5f4dd7fc6136e9f1bfd7bdbba4
[INFO] running `Command { std: "docker" "start" "-a" "abf257b8578c32abe41096a4f1ca15817b9d8a5f4dd7fc6136e9f1bfd7bdbba4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mime_detective-25095955d0f1ba12)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[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/mime_detective-25095955d0f1ba12` (signal: 7, SIGBUS: access to undefined memory)
[INFO] running `Command { std: "docker" "inspect" "abf257b8578c32abe41096a4f1ca15817b9d8a5f4dd7fc6136e9f1bfd7bdbba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf257b8578c32abe41096a4f1ca15817b9d8a5f4dd7fc6136e9f1bfd7bdbba4", kill_on_drop: false }`
[INFO] [stdout] abf257b8578c32abe41096a4f1ca15817b9d8a5f4dd7fc6136e9f1bfd7bdbba4