[INFO] updating cached repository leeola/prost-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leeola/prost-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leeola/prost-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/leeola/prost-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/leeola/prost-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leeola/prost-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leeola/prost-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leeola/prost-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd2999d7a38b2e2da93904a41747c369fb510de7
[INFO] sha for GitHub repo leeola/prost-test: dd2999d7a38b2e2da93904a41747c369fb510de7
[INFO] validating manifest of leeola/prost-test 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 leeola/prost-test 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 leeola/prost-test
[INFO] finished frobbing leeola/prost-test
[INFO] frobbed toml for leeola/prost-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/leeola/prost-test/Cargo.toml
[INFO] started frobbing leeola/prost-test
[INFO] finished frobbing leeola/prost-test
[INFO] frobbed toml for leeola/prost-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leeola/prost-test/Cargo.toml
[INFO] crate leeola/prost-test 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing leeola/prost-test 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/leeola/prost-test:/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] 71ceea59e14730640d84917eaac772a4cd3e3b52c10296d91acb44ef32c7e20c
[INFO] running `"docker" "start" "-a" "71ceea59e14730640d84917eaac772a4cd3e3b52c10296d91acb44ef32c7e20c"`
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling failure_derive v0.1.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.11
[INFO] [stderr]    Compiling serde v1.0.83
[INFO] [stderr]    Compiling try-lock v0.1.0
[INFO] [stderr]    Compiling prost-build v0.3.2
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling prost v0.3.2
[INFO] [stderr]    Compiling prost v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling hyper v0.12.19
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling failure v0.1.4
[INFO] [stderr]    Compiling prost-derive v0.3.2
[INFO] [stderr]    Compiling prost-derive v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.34
[INFO] [stderr]    Compiling hyper v0.11.27
[INFO] [stderr]    Compiling prost-types v0.3.2
[INFO] [stderr]    Compiling prost-twirp v0.1.0
[INFO] [stderr]    Compiling prost-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing `extern crate baz;`?
[INFO] [stderr]  --> /opt/crater/target/debug/build/prost-test-9a5be5efb347dfd2/out/foo.rs:4:43
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub baz: ::std::option::Option<super::baz::Baz>,
[INFO] [stderr]   |                                           ^^^ maybe a missing `extern crate baz;`?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `prost-test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "71ceea59e14730640d84917eaac772a4cd3e3b52c10296d91acb44ef32c7e20c"`
[INFO] running `"docker" "rm" "-f" "71ceea59e14730640d84917eaac772a4cd3e3b52c10296d91acb44ef32c7e20c"`
[INFO] [stdout] 71ceea59e14730640d84917eaac772a4cd3e3b52c10296d91acb44ef32c7e20c