[INFO] crate efficient_enum 0.3.1 is already in cache
[INFO] extracting crate efficient_enum 0.3.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/efficient_enum/0.3.1
[INFO] extracting crate efficient_enum 0.3.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/efficient_enum/0.3.1
[INFO] validating manifest of efficient_enum-0.3.1 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 efficient_enum-0.3.1 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 efficient_enum-0.3.1
[INFO] finished frobbing efficient_enum-0.3.1
[INFO] frobbed toml for efficient_enum-0.3.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/efficient_enum/0.3.1/Cargo.toml
[INFO] started frobbing efficient_enum-0.3.1
[INFO] finished frobbing efficient_enum-0.3.1
[INFO] frobbed toml for efficient_enum-0.3.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/efficient_enum/0.3.1/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 efficient_enum-0.3.1 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-4/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/efficient_enum/0.3.1:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8410d857a396bd883bf8a1045787a3e756acc060d8423fba605623f26e4a1145
[INFO] running `"docker" "start" "-a" "8410d857a396bd883bf8a1045787a3e756acc060d8423fba605623f26e4a1145"`
[INFO] [stderr]    Compiling efficient_enum v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "8410d857a396bd883bf8a1045787a3e756acc060d8423fba605623f26e4a1145"`
[INFO] running `"docker" "rm" "-f" "8410d857a396bd883bf8a1045787a3e756acc060d8423fba605623f26e4a1145"`
[INFO] [stdout] 8410d857a396bd883bf8a1045787a3e756acc060d8423fba605623f26e4a1145
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/efficient_enum/0.3.1:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e36ef14c3f76025a62817f7ad5a5b8bdc2d579af5ebecf16b9699ae528d2aad5
[INFO] running `"docker" "start" "-a" "e36ef14c3f76025a62817f7ad5a5b8bdc2d579af5ebecf16b9699ae528d2aad5"`
[INFO] [stderr]    Compiling efficient_enum v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "e36ef14c3f76025a62817f7ad5a5b8bdc2d579af5ebecf16b9699ae528d2aad5"`
[INFO] running `"docker" "rm" "-f" "e36ef14c3f76025a62817f7ad5a5b8bdc2d579af5ebecf16b9699ae528d2aad5"`
[INFO] [stdout] e36ef14c3f76025a62817f7ad5a5b8bdc2d579af5ebecf16b9699ae528d2aad5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/efficient_enum/0.3.1:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 82e2a41cb279f636db067f29244ccb367b43c0f6d2df2f98b77cc4ba3833d45a
[INFO] running `"docker" "start" "-a" "82e2a41cb279f636db067f29244ccb367b43c0f6d2df2f98b77cc4ba3833d45a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/efficient_enum-ce65f0fe961864de
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test option::tests::test_option_tuple_mut ... ok
[INFO] [stdout] test option::tests::test_option_new ... ok
[INFO] [stdout] test option::tests::test_option_tuple_as_mut ... ok
[INFO] [stdout] test option::tests::test_option_tuple_simple ... ok
[INFO] [stdout] test option::tests::test_option_simple ... ok
[INFO] [stdout] test option::tests::test_option_mut ... ok
[INFO] [stdout] test option::tests::test_option_tuple_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests efficient_enum
[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" "82e2a41cb279f636db067f29244ccb367b43c0f6d2df2f98b77cc4ba3833d45a"`
[INFO] running `"docker" "rm" "-f" "82e2a41cb279f636db067f29244ccb367b43c0f6d2df2f98b77cc4ba3833d45a"`
[INFO] [stdout] 82e2a41cb279f636db067f29244ccb367b43c0f6d2df2f98b77cc4ba3833d45a