[INFO] crate webapp-frontend 1.0.0 is already in cache
[INFO] extracting crate webapp-frontend 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/webapp-frontend/1.0.0
[INFO] extracting crate webapp-frontend 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/webapp-frontend/1.0.0
[INFO] validating manifest of webapp-frontend-1.0.0 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 webapp-frontend-1.0.0 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 webapp-frontend-1.0.0
[INFO] finished frobbing webapp-frontend-1.0.0
[INFO] frobbed toml for webapp-frontend-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/webapp-frontend/1.0.0/Cargo.toml
[INFO] started frobbing webapp-frontend-1.0.0
[INFO] finished frobbing webapp-frontend-1.0.0
[INFO] frobbed toml for webapp-frontend-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/webapp-frontend/1.0.0/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 webapp-frontend-1.0.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/webapp-frontend/1.0.0:/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] 938c0ba44b0389501f7edeb96a7362207951859c1cad2fbb7b9a658052df5d2c
[INFO] running `"docker" "start" "-a" "938c0ba44b0389501f7edeb96a7362207951859c1cad2fbb7b9a658052df5d2c"`
[INFO] [stderr]    Compiling sass-sys v0.4.13
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr] error: Could not compile `toml`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name toml /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml-0.5.3/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' -C metadata=e8888326c6b62253 -C extra-filename=-e8888326c6b62253 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern serde=/opt/crater/target/debug/deps/libserde-d3f74d26e7407a37.rlib --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `serde_cbor`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_cbor /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_cbor-0.9.0/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=fb5791634d71f0f7 -C extra-filename=-fb5791634d71f0f7 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern byteorder=/opt/crater/target/debug/deps/libbyteorder-585fd2581aa01382.rlib --extern half=/opt/crater/target/debug/deps/libhalf-a0cf88d1d08ce289.rlib --extern serde=/opt/crater/target/debug/deps/libserde-d3f74d26e7407a37.rlib --cap-lints allow --cap-lints=warn` (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" "938c0ba44b0389501f7edeb96a7362207951859c1cad2fbb7b9a658052df5d2c"`
[INFO] running `"docker" "rm" "-f" "938c0ba44b0389501f7edeb96a7362207951859c1cad2fbb7b9a658052df5d2c"`
[INFO] [stdout] 938c0ba44b0389501f7edeb96a7362207951859c1cad2fbb7b9a658052df5d2c