[INFO] crate tract 0.3.3 is already in cache
[INFO] extracting crate tract 0.3.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/tract/0.3.3
[INFO] extracting crate tract 0.3.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tract/0.3.3
[INFO] validating manifest of tract-0.3.3 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 tract-0.3.3 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 tract-0.3.3
[INFO] finished frobbing tract-0.3.3
[INFO] frobbed toml for tract-0.3.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tract/0.3.3/Cargo.toml
[INFO] started frobbing tract-0.3.3
[INFO] finished frobbing tract-0.3.3
[INFO] frobbed toml for tract-0.3.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tract/0.3.3/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 tract-0.3.3 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tract/0.3.3:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8d59a2eb45da043e06c9d201e7196a367d86ce9d03cc6d5968be8fbda1581b07
[INFO] running `"docker" "start" "-a" "8d59a2eb45da043e06c9d201e7196a367d86ce9d03cc6d5968be8fbda1581b07"`
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling objekt v0.1.2
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0
[INFO] [stderr]    Compiling box_drawing v0.1.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling tract-linalg v0.3.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling terminal_size v0.1.8
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling custom_debug_derive v0.1.7
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling no-panic v0.1.11
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling tract-core v0.3.3
[INFO] [stderr]    Compiling tract-tensorflow v0.3.3
[INFO] [stderr]    Compiling tract-onnx v0.3.3
[INFO] [stderr] error: Could not compile `tract-core`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name tract_core /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tract-core-0.3.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' -C metadata=9e533562f4bacce3 -C extra-filename=-9e533562f4bacce3 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bit_set=/opt/crater/target/debug/deps/libbit_set-089248f87181368e.rmeta --extern custom_debug_derive=/opt/crater/target/debug/deps/libcustom_debug_derive-8f560f0e08687006.so --extern derive_new=/opt/crater/target/debug/deps/libderive_new-3d6b6c7e1c379107.so --extern downcast_rs=/opt/crater/target/debug/deps/libdowncast_rs-6ac72f8e2287e42d.rmeta --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-567218e5ac569260.rmeta --extern error_chain=/opt/crater/target/debug/deps/liberror_chain-73fd2519d03dd285.rmeta --extern half=/opt/crater/target/debug/deps/libhalf-264e0a47002ac180.rmeta --extern itertools=/opt/crater/target/debug/deps/libitertools-7a59558413d02103.rmeta --extern log=/opt/crater/target/debug/deps/liblog-6796845c78a3960b.rmeta --extern maplit=/opt/crater/target/debug/deps/libmaplit-9c2369f4370ae973.rmeta --extern ndarray=/opt/crater/target/debug/deps/libndarray-1fcaaa85a4e533ca.rmeta --extern no_panic=/opt/crater/target/debug/deps/libno_panic-43c3eef3caaef7ce.so --extern num_integer=/opt/crater/target/debug/deps/libnum_integer-440f23443e3e87b1.rmeta --extern num_traits=/opt/crater/target/debug/deps/libnum_traits-c28daeab5210b49d.rmeta --extern objekt=/opt/crater/target/debug/deps/libobjekt-140b3bbf46d47ffe.rmeta --extern smallvec=/opt/crater/target/debug/deps/libsmallvec-7295b1a781bd56b7.rmeta --extern tract_linalg=/opt/crater/target/debug/deps/libtract_linalg-d2032386ce98f977.rmeta --extern unsafe_unwrap=/opt/crater/target/debug/deps/libunsafe_unwrap-288f51856e690e1e.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/crater/target/debug/build/backtrace-sys-d5ae900bfde9750d/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "8d59a2eb45da043e06c9d201e7196a367d86ce9d03cc6d5968be8fbda1581b07"`
[INFO] running `"docker" "rm" "-f" "8d59a2eb45da043e06c9d201e7196a367d86ce9d03cc6d5968be8fbda1581b07"`
[INFO] [stdout] 8d59a2eb45da043e06c9d201e7196a367d86ce9d03cc6d5968be8fbda1581b07