[INFO] crate union-find 0.3.2 is already in cache
[INFO] extracting crate union-find 0.3.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/union-find/0.3.2
[INFO] extracting crate union-find 0.3.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/union-find/0.3.2
[INFO] validating manifest of union-find-0.3.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of union-find-0.3.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing union-find-0.3.2
[INFO] finished frobbing union-find-0.3.2
[INFO] frobbed toml for union-find-0.3.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/union-find/0.3.2/Cargo.toml
[INFO] started frobbing union-find-0.3.2
[INFO] finished frobbing union-find-0.3.2
[INFO] frobbed toml for union-find-0.3.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/union-find/0.3.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing union-find-0.3.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/union-find/0.3.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a27dd45a8d20c8c6e693b9c095792e86d8907ff5fee30fe46b9cfc74265c5a26
[INFO] running `"docker" "start" "-a" "a27dd45a8d20c8c6e693b9c095792e86d8907ff5fee30fe46b9cfc74265c5a26"`
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "a27dd45a8d20c8c6e693b9c095792e86d8907ff5fee30fe46b9cfc74265c5a26"`
[INFO] running `"docker" "rm" "-f" "a27dd45a8d20c8c6e693b9c095792e86d8907ff5fee30fe46b9cfc74265c5a26"`
[INFO] [stdout] a27dd45a8d20c8c6e693b9c095792e86d8907ff5fee30fe46b9cfc74265c5a26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/union-find/0.3.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e91334cfbde98aafa65f698a7315c666015e51a35b0fb0986c7ddbaf62434062
[INFO] running `"docker" "start" "-a" "e91334cfbde98aafa65f698a7315c666015e51a35b0fb0986c7ddbaf62434062"`
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "e91334cfbde98aafa65f698a7315c666015e51a35b0fb0986c7ddbaf62434062"`
[INFO] running `"docker" "rm" "-f" "e91334cfbde98aafa65f698a7315c666015e51a35b0fb0986c7ddbaf62434062"`
[INFO] [stdout] e91334cfbde98aafa65f698a7315c666015e51a35b0fb0986c7ddbaf62434062
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/union-find/0.3.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] d18103b67f1fb430c305add046b5978a896f5f5913e93a39922492963888e8f4
[INFO] running `"docker" "start" "-a" "d18103b67f1fb430c305add046b5978a896f5f5913e93a39922492963888e8f4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/union_find-e88671a6616244f7
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::quick_find::union_find ... ok
[INFO] [stdout] test tests::quick_union::union_find ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests union-find
[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" "d18103b67f1fb430c305add046b5978a896f5f5913e93a39922492963888e8f4"`
[INFO] running `"docker" "rm" "-f" "d18103b67f1fb430c305add046b5978a896f5f5913e93a39922492963888e8f4"`
[INFO] [stdout] d18103b67f1fb430c305add046b5978a896f5f5913e93a39922492963888e8f4