[INFO] fetching crate signalbool 0.2.3...
[INFO] extracting crate signalbool 0.2.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/signalbool/0.2.3
[INFO] extracting crate signalbool 0.2.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/signalbool/0.2.3
[INFO] validating manifest of signalbool-0.2.3 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of signalbool-0.2.3 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing signalbool-0.2.3
[INFO] finished frobbing signalbool-0.2.3
[INFO] frobbed toml for signalbool-0.2.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/signalbool/0.2.3/Cargo.toml
[INFO] started frobbing signalbool-0.2.3
[INFO] finished frobbing signalbool-0.2.3
[INFO] frobbed toml for signalbool-0.2.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/signalbool/0.2.3/Cargo.toml
[INFO] crate signalbool-0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing signalbool-0.2.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/signalbool/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] c299207ec9bc061c4db33280a9ccc15306cdc9eba6c9fc84394be2d67b75e717
[INFO] running `"docker" "start" "-a" "c299207ec9bc061c4db33280a9ccc15306cdc9eba6c9fc84394be2d67b75e717"`
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling signalbool v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.52s
[INFO] running `"docker" "inspect" "c299207ec9bc061c4db33280a9ccc15306cdc9eba6c9fc84394be2d67b75e717"`
[INFO] running `"docker" "rm" "-f" "c299207ec9bc061c4db33280a9ccc15306cdc9eba6c9fc84394be2d67b75e717"`
[INFO] [stdout] c299207ec9bc061c4db33280a9ccc15306cdc9eba6c9fc84394be2d67b75e717
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/signalbool/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 664606fe3c04c9d8db652c83e14019a5a32a9387af0c827f674d0345af88744a
[INFO] running `"docker" "start" "-a" "664606fe3c04c9d8db652c83e14019a5a32a9387af0c827f674d0345af88744a"`
[INFO] [stderr]    Compiling signalbool v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "664606fe3c04c9d8db652c83e14019a5a32a9387af0c827f674d0345af88744a"`
[INFO] running `"docker" "rm" "-f" "664606fe3c04c9d8db652c83e14019a5a32a9387af0c827f674d0345af88744a"`
[INFO] [stdout] 664606fe3c04c9d8db652c83e14019a5a32a9387af0c827f674d0345af88744a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/signalbool/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ee09905b52fec93293d350beaa08c036724de22345bf563babcad9e500495545
[INFO] running `"docker" "start" "-a" "ee09905b52fec93293d350beaa08c036724de22345bf563babcad9e500495545"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/signalbool-5851b3a9b0c27267
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests signalbool
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 12) ... test src/lib.rs -  (line 12) has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "ee09905b52fec93293d350beaa08c036724de22345bf563babcad9e500495545"`
[INFO] running `"docker" "rm" "-f" "ee09905b52fec93293d350beaa08c036724de22345bf563babcad9e500495545"`
[INFO] [stdout] ee09905b52fec93293d350beaa08c036724de22345bf563babcad9e500495545