[INFO] crate bbt 0.2.0 is already in cache
[INFO] extracting crate bbt 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/bbt/0.2.0
[INFO] extracting crate bbt 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bbt/0.2.0
[INFO] validating manifest of bbt-0.2.0 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 bbt-0.2.0 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 bbt-0.2.0
[INFO] finished frobbing bbt-0.2.0
[INFO] frobbed toml for bbt-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bbt/0.2.0/Cargo.toml
[INFO] started frobbing bbt-0.2.0
[INFO] finished frobbing bbt-0.2.0
[INFO] frobbed toml for bbt-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bbt/0.2.0/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 bbt-0.2.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bbt/0.2.0:/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] 00601af04cd5b9c96e6ed874dcb9d1c6ab0ad5302a0e633b36805cf84cd58135
[INFO] running `"docker" "start" "-a" "00601af04cd5b9c96e6ed874dcb9d1c6ab0ad5302a0e633b36805cf84cd58135"`
[INFO] [stderr]    Compiling bbt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "00601af04cd5b9c96e6ed874dcb9d1c6ab0ad5302a0e633b36805cf84cd58135"`
[INFO] running `"docker" "rm" "-f" "00601af04cd5b9c96e6ed874dcb9d1c6ab0ad5302a0e633b36805cf84cd58135"`
[INFO] [stdout] 00601af04cd5b9c96e6ed874dcb9d1c6ab0ad5302a0e633b36805cf84cd58135
[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/reg/bbt/0.2.0:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4be9f345714b4ab191476aff89c60aa9b926deceea98f1c7ded770076674f995
[INFO] running `"docker" "start" "-a" "4be9f345714b4ab191476aff89c60aa9b926deceea98f1c7ded770076674f995"`
[INFO] [stderr]    Compiling bbt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "4be9f345714b4ab191476aff89c60aa9b926deceea98f1c7ded770076674f995"`
[INFO] running `"docker" "rm" "-f" "4be9f345714b4ab191476aff89c60aa9b926deceea98f1c7ded770076674f995"`
[INFO] [stdout] 4be9f345714b4ab191476aff89c60aa9b926deceea98f1c7ded770076674f995
[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/reg/bbt/0.2.0:/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" "test" "--frozen"`
[INFO] [stdout] 520f680bbfc3ced94404b27a9eeaee2bc5ed7d3d4f6d431ab3486cc970b7d40f
[INFO] running `"docker" "start" "-a" "520f680bbfc3ced94404b27a9eeaee2bc5ed7d3d4f6d431ab3486cc970b7d40f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bbt-0dc5ada656ca3160
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::two_player_duel_win_loss ... ok
[INFO] [stdout] test test::can_instantiate_ratings ... ok
[INFO] [stdout] test test::two_player_duel_tie ... ok
[INFO] [stdout] test test::four_player_race ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rating_serialization-3d936e7f06988b3a
[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 bbt
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs -  (line 82) ... ok
[INFO] [stdout] test src/lib.rs -  (line 11) ... ok
[INFO] [stdout] test src/lib.rs -  (line 51) ... ok
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "520f680bbfc3ced94404b27a9eeaee2bc5ed7d3d4f6d431ab3486cc970b7d40f"`
[INFO] running `"docker" "rm" "-f" "520f680bbfc3ced94404b27a9eeaee2bc5ed7d3d4f6d431ab3486cc970b7d40f"`
[INFO] [stdout] 520f680bbfc3ced94404b27a9eeaee2bc5ed7d3d4f6d431ab3486cc970b7d40f