[INFO] crate sass-sys 0.4.13 is already in cache
[INFO] extracting crate sass-sys 0.4.13 into work/ex/beta-1.38-1/sources/1.37.0/reg/sass-sys/0.4.13
[INFO] extracting crate sass-sys 0.4.13 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sass-sys/0.4.13
[INFO] validating manifest of sass-sys-0.4.13 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sass-sys-0.4.13 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sass-sys-0.4.13
[INFO] finished frobbing sass-sys-0.4.13
[INFO] frobbed toml for sass-sys-0.4.13 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sass-sys/0.4.13/Cargo.toml
[INFO] started frobbing sass-sys-0.4.13
[INFO] finished frobbing sass-sys-0.4.13
[INFO] frobbed toml for sass-sys-0.4.13 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sass-sys/0.4.13/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sass-sys-0.4.13 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sass-sys/0.4.13:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 391b8bf159ea2f9209758669aad5137e3afeff3576e0b463d348fb51c0d17a82
[INFO] running `"docker" "start" "-a" "391b8bf159ea2f9209758669aad5137e3afeff3576e0b463d348fb51c0d17a82"`
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling sass-sys v0.4.13 (/opt/crater/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "391b8bf159ea2f9209758669aad5137e3afeff3576e0b463d348fb51c0d17a82"`
[INFO] running `"docker" "rm" "-f" "391b8bf159ea2f9209758669aad5137e3afeff3576e0b463d348fb51c0d17a82"`
[INFO] [stdout] 391b8bf159ea2f9209758669aad5137e3afeff3576e0b463d348fb51c0d17a82