[INFO] fetching crate optbuilder 0.1.1...
[INFO] extracting crate optbuilder 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/optbuilder/0.1.1
[INFO] extracting crate optbuilder 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/optbuilder/0.1.1
[INFO] validating manifest of optbuilder-0.1.1 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 optbuilder-0.1.1 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 optbuilder-0.1.1
[INFO] finished frobbing optbuilder-0.1.1
[INFO] frobbed toml for optbuilder-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/optbuilder/0.1.1/Cargo.toml
[INFO] started frobbing optbuilder-0.1.1
[INFO] finished frobbing optbuilder-0.1.1
[INFO] frobbed toml for optbuilder-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/optbuilder/0.1.1/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 optbuilder-0.1.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/optbuilder/0.1.1:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2c8d7d652ea866208f8b72b1ab4c7d5fce5338b974c5c9d8d8eca682349b05a7
[INFO] running `"docker" "start" "-a" "2c8d7d652ea866208f8b72b1ab4c7d5fce5338b974c5c9d8d8eca682349b05a7"`
[INFO] [stderr]    Compiling optbuilder v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "2c8d7d652ea866208f8b72b1ab4c7d5fce5338b974c5c9d8d8eca682349b05a7"`
[INFO] running `"docker" "rm" "-f" "2c8d7d652ea866208f8b72b1ab4c7d5fce5338b974c5c9d8d8eca682349b05a7"`
[INFO] [stdout] 2c8d7d652ea866208f8b72b1ab4c7d5fce5338b974c5c9d8d8eca682349b05a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/optbuilder/0.1.1:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] fe8fedc8a9aa14c6191328da52cb35d8b742aa775235fedc7dc0d42dca66b615
[INFO] running `"docker" "start" "-a" "fe8fedc8a9aa14c6191328da52cb35d8b742aa775235fedc7dc0d42dca66b615"`
[INFO] [stderr]    Compiling optbuilder v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "fe8fedc8a9aa14c6191328da52cb35d8b742aa775235fedc7dc0d42dca66b615"`
[INFO] running `"docker" "rm" "-f" "fe8fedc8a9aa14c6191328da52cb35d8b742aa775235fedc7dc0d42dca66b615"`
[INFO] [stdout] fe8fedc8a9aa14c6191328da52cb35d8b742aa775235fedc7dc0d42dca66b615
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/optbuilder/0.1.1:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8fe2eccda9c8968cd6cdcbff3676f5c8b826989b7fa1505d2eed22eeb245cf87
[INFO] running `"docker" "start" "-a" "8fe2eccda9c8968cd6cdcbff3676f5c8b826989b7fa1505d2eed22eeb245cf87"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/optbuilder-b53722dc9c83b255
[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/lib-20d80c3e0a3460be
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_with_attr ... ok
[INFO] [stdout] test tests::test_many_attrs ... 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 optbuilder
[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" "8fe2eccda9c8968cd6cdcbff3676f5c8b826989b7fa1505d2eed22eeb245cf87"`
[INFO] running `"docker" "rm" "-f" "8fe2eccda9c8968cd6cdcbff3676f5c8b826989b7fa1505d2eed22eeb245cf87"`
[INFO] [stdout] 8fe2eccda9c8968cd6cdcbff3676f5c8b826989b7fa1505d2eed22eeb245cf87