[INFO] updating cached repository compass-rs/compass
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/compass-rs/compass
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/compass-rs/compass" "work/ex/beta-1.38-1/sources/1.37.0/gh/compass-rs/compass"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/compass-rs/compass'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/compass-rs/compass" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/compass-rs/compass"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/compass-rs/compass'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 53c4a9681cb263bd7ed6c501e4544031cab2b67a
[INFO] sha for GitHub repo compass-rs/compass: 53c4a9681cb263bd7ed6c501e4544031cab2b67a
[INFO] validating manifest of compass-rs/compass 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 compass-rs/compass 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 compass-rs/compass
[INFO] finished frobbing compass-rs/compass
[INFO] frobbed toml for compass-rs/compass written to work/ex/beta-1.38-1/sources/1.37.0/gh/compass-rs/compass/Cargo.toml
[INFO] started frobbing compass-rs/compass
[INFO] finished frobbing compass-rs/compass
[INFO] frobbed toml for compass-rs/compass written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/compass-rs/compass/Cargo.toml
[INFO] crate compass-rs/compass already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/compass-rs/compass/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 compass-rs/compass 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/compass-rs/compass:/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] 6ed3158ef80b4c45ee83254dddce0cf5e4fcc7a7e7fb1356153d7be8d8ccf281
[INFO] running `"docker" "start" "-a" "6ed3158ef80b4c45ee83254dddce0cf5e4fcc7a7e7fb1356153d7be8d8ccf281"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sass-sys v0.4.13
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr] error: Could not compile `num-rational`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name num_rational /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-rational-0.2.2/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="bigint"' --cfg 'feature="num-bigint"' --cfg 'feature="std"' -C metadata=c8b7ebee6e138fef -C extra-filename=-c8b7ebee6e138fef --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern num_bigint=/opt/crater/target/debug/deps/libnum_bigint-53c2537e33831380.rlib --extern num_integer=/opt/crater/target/debug/deps/libnum_integer-e8e7d1ec85b23cb1.rlib --extern num_traits=/opt/crater/target/debug/deps/libnum_traits-d11dcc7883adaecb.rlib --cap-lints allow --cap-lints=warn --cfg has_i128` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "6ed3158ef80b4c45ee83254dddce0cf5e4fcc7a7e7fb1356153d7be8d8ccf281"`
[INFO] running `"docker" "rm" "-f" "6ed3158ef80b4c45ee83254dddce0cf5e4fcc7a7e7fb1356153d7be8d8ccf281"`
[INFO] [stdout] 6ed3158ef80b4c45ee83254dddce0cf5e4fcc7a7e7fb1356153d7be8d8ccf281