[INFO] updating cached repository mlajszczak/type_check
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mlajszczak/type_check
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mlajszczak/type_check" "work/ex/beta-1.38-1/sources/1.37.0/gh/mlajszczak/type_check"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mlajszczak/type_check'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mlajszczak/type_check" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9489baf1661e51f6c4218fbf637484c19f780157
[INFO] sha for GitHub repo mlajszczak/type_check: 9489baf1661e51f6c4218fbf637484c19f780157
[INFO] validating manifest of mlajszczak/type_check 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 mlajszczak/type_check 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 mlajszczak/type_check
[INFO] finished frobbing mlajszczak/type_check
[INFO] frobbed toml for mlajszczak/type_check written to work/ex/beta-1.38-1/sources/1.37.0/gh/mlajszczak/type_check/Cargo.toml
[INFO] started frobbing mlajszczak/type_check
[INFO] finished frobbing mlajszczak/type_check
[INFO] frobbed toml for mlajszczak/type_check written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check/Cargo.toml
[INFO] crate mlajszczak/type_check 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 mlajszczak/type_check 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check:/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] 5a41cda8ed0f85ebb38e8593c99bb40516b0ccecdd2aded2d904ce7516346253
[INFO] running `"docker" "start" "-a" "5a41cda8ed0f85ebb38e8593c99bb40516b0ccecdd2aded2d904ce7516346253"`
[INFO] [stderr]    Compiling type_check v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "5a41cda8ed0f85ebb38e8593c99bb40516b0ccecdd2aded2d904ce7516346253"`
[INFO] running `"docker" "rm" "-f" "5a41cda8ed0f85ebb38e8593c99bb40516b0ccecdd2aded2d904ce7516346253"`
[INFO] [stdout] 5a41cda8ed0f85ebb38e8593c99bb40516b0ccecdd2aded2d904ce7516346253
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] f1669e83c4faf9760e65b590e661ce87ffa09ba2fe3aeb1f46abf0d08e928005
[INFO] running `"docker" "start" "-a" "f1669e83c4faf9760e65b590e661ce87ffa09ba2fe3aeb1f46abf0d08e928005"`
[INFO] [stderr]    Compiling type_check v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "f1669e83c4faf9760e65b590e661ce87ffa09ba2fe3aeb1f46abf0d08e928005"`
[INFO] running `"docker" "rm" "-f" "f1669e83c4faf9760e65b590e661ce87ffa09ba2fe3aeb1f46abf0d08e928005"`
[INFO] [stdout] f1669e83c4faf9760e65b590e661ce87ffa09ba2fe3aeb1f46abf0d08e928005
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlajszczak/type_check:/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" "test" "--frozen"`
[INFO] [stdout] e68aa471f41c763d7b806a6cd54402cb7c5531f67276d0bde974ffd01f0ec0e6
[INFO] running `"docker" "start" "-a" "e68aa471f41c763d7b806a6cd54402cb7c5531f67276d0bde974ffd01f0ec0e6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/type_check-43e240647f7ebdc0
[INFO] [stderr]      Running /opt/crater/target/debug/deps/type_check-f1cdb10461985ece
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test tests::apply::empty_substitution ... ok
[INFO] [stdout] test tests::apply::complex_type ... ok
[INFO] [stdout] test tests::compose::no_common_variables ... ok
[INFO] [stdout] test tests::unify::empty_set ... ok
[INFO] [stdout] test tests::unify::recursive_constraints ... ok
[INFO] [stdout] test tests::unify::simple_arrow_constraints ... ok
[INFO] [stdout] test tests::unify::simple_fail ... ok
[INFO] [stdout] test tests::unify::specifying_constraints ... ok
[INFO] [stdout] test tests::compose::neutralize_fist_subs ... ok
[INFO] [stdout] test tests::unify::transitive_constraints ... ok
[INFO] [stdout] test tests::compose::inverting_subs ... ok
[INFO] [stdout] test tests::compose::complex_composition ... ok
[INFO] [stdout] test tests::apply::type_without_variables ... ok
[INFO] [stdout] test tests::apply::variable_type ... ok
[INFO] [stdout] test tests::apply::no_common_variables ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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]    Doc-tests type_check
[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" "e68aa471f41c763d7b806a6cd54402cb7c5531f67276d0bde974ffd01f0ec0e6"`
[INFO] running `"docker" "rm" "-f" "e68aa471f41c763d7b806a6cd54402cb7c5531f67276d0bde974ffd01f0ec0e6"`
[INFO] [stdout] e68aa471f41c763d7b806a6cd54402cb7c5531f67276d0bde974ffd01f0ec0e6