[INFO] updating cached repository samphippen/expector
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/samphippen/expector
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/samphippen/expector" "work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/samphippen/expector" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samphippen/expector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samphippen/expector'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1a365395f51adeda5bdbcc0b35d67f47b94c94f2
[INFO] sha for GitHub repo samphippen/expector: 1a365395f51adeda5bdbcc0b35d67f47b94c94f2
[INFO] validating manifest of samphippen/expector 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 samphippen/expector 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 samphippen/expector
[INFO] finished frobbing samphippen/expector
[INFO] frobbed toml for samphippen/expector written to work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector/Cargo.toml
[INFO] started frobbing samphippen/expector
[INFO] finished frobbing samphippen/expector
[INFO] frobbed toml for samphippen/expector written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samphippen/expector/Cargo.toml
[INFO] crate samphippen/expector 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 samphippen/expector 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector:/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] e3325eea139803673731773f5a6cbcdf7f048c01ecbbf67fb2c5a62b5ebc060e
[INFO] running `"docker" "start" "-a" "e3325eea139803673731773f5a6cbcdf7f048c01ecbbf67fb2c5a62b5ebc060e"`
[INFO] [stderr]    Compiling expector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "e3325eea139803673731773f5a6cbcdf7f048c01ecbbf67fb2c5a62b5ebc060e"`
[INFO] running `"docker" "rm" "-f" "e3325eea139803673731773f5a6cbcdf7f048c01ecbbf67fb2c5a62b5ebc060e"`
[INFO] [stdout] e3325eea139803673731773f5a6cbcdf7f048c01ecbbf67fb2c5a62b5ebc060e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 28b630c822fe7bd9dabc762ffd74419d67ef7a19a11822d4699ab91ffee2c891
[INFO] running `"docker" "start" "-a" "28b630c822fe7bd9dabc762ffd74419d67ef7a19a11822d4699ab91ffee2c891"`
[INFO] [stderr]    Compiling expector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "28b630c822fe7bd9dabc762ffd74419d67ef7a19a11822d4699ab91ffee2c891"`
[INFO] running `"docker" "rm" "-f" "28b630c822fe7bd9dabc762ffd74419d67ef7a19a11822d4699ab91ffee2c891"`
[INFO] [stdout] 28b630c822fe7bd9dabc762ffd74419d67ef7a19a11822d4699ab91ffee2c891
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samphippen/expector:/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" "test" "--frozen"`
[INFO] [stdout] 57d7353d28935468d19253fcbf3f087039b9bd86fd5f3e8dd5ddf6a6cfe61cb9
[INFO] running `"docker" "start" "-a" "57d7353d28935468d19253fcbf3f087039b9bd86fd5f3e8dd5ddf6a6cfe61cb9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/expector-d34471ad57920651
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primary_test-2586ed6ec5632395
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test be_an_empty_vec_matches_emtpy_vecs ... ok
[INFO] [stdout] test equality_matcher_matches_things_that_are_equal ... ok
[INFO] [stdout] test be_an_empty_vec_fails_when_vecs_are_not_empty ... ok
[INFO] [stdout] test eq_matcher_fails_when_things_are_not_equal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests expector
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "57d7353d28935468d19253fcbf3f087039b9bd86fd5f3e8dd5ddf6a6cfe61cb9"`
[INFO] running `"docker" "rm" "-f" "57d7353d28935468d19253fcbf3f087039b9bd86fd5f3e8dd5ddf6a6cfe61cb9"`
[INFO] [stdout] 57d7353d28935468d19253fcbf3f087039b9bd86fd5f3e8dd5ddf6a6cfe61cb9