[INFO] crate union-find 0.3.2 is already in cache
[INFO] extracting crate union-find 0.3.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/union-find/0.3.2
[INFO] extracting crate union-find 0.3.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/union-find/0.3.2
[INFO] validating manifest of union-find-0.3.2 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 union-find-0.3.2 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/union-find/0.3.2/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 union-find-0.3.2 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 333f97427b9fe0da0dfb9ba679a0fc676be064db1e514575de2a7df1b8107347
[INFO] running `"docker" "start" "-a" "333f97427b9fe0da0dfb9ba679a0fc676be064db1e514575de2a7df1b8107347"`
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "333f97427b9fe0da0dfb9ba679a0fc676be064db1e514575de2a7df1b8107347"`
[INFO] running `"docker" "rm" "-f" "333f97427b9fe0da0dfb9ba679a0fc676be064db1e514575de2a7df1b8107347"`
[INFO] [stdout] 333f97427b9fe0da0dfb9ba679a0fc676be064db1e514575de2a7df1b8107347
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6db6f52ec2cf2cbae9cb0c2e1b7f75d23eb6528cbda6706d3962b94562e2b093
[INFO] running `"docker" "start" "-a" "6db6f52ec2cf2cbae9cb0c2e1b7f75d23eb6528cbda6706d3962b94562e2b093"`
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "6db6f52ec2cf2cbae9cb0c2e1b7f75d23eb6528cbda6706d3962b94562e2b093"`
[INFO] running `"docker" "rm" "-f" "6db6f52ec2cf2cbae9cb0c2e1b7f75d23eb6528cbda6706d3962b94562e2b093"`
[INFO] [stdout] 6db6f52ec2cf2cbae9cb0c2e1b7f75d23eb6528cbda6706d3962b94562e2b093
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 41b26d55d276ec1a6260bd72d0152a2ff2e6e8a242cb3cfcf59dc201edc3f758
[INFO] running `"docker" "start" "-a" "41b26d55d276ec1a6260bd72d0152a2ff2e6e8a242cb3cfcf59dc201edc3f758"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/union_find-6bfaf951abfe1c92
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::quick_union::union_find ... ok
[INFO] [stdout] test tests::quick_find::union_find ... ok
[INFO] [stderr]    Doc-tests union-find
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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] running `"docker" "inspect" "41b26d55d276ec1a6260bd72d0152a2ff2e6e8a242cb3cfcf59dc201edc3f758"`
[INFO] running `"docker" "rm" "-f" "41b26d55d276ec1a6260bd72d0152a2ff2e6e8a242cb3cfcf59dc201edc3f758"`
[INFO] [stdout] 41b26d55d276ec1a6260bd72d0152a2ff2e6e8a242cb3cfcf59dc201edc3f758