[INFO] crate gray-codes 0.1.1 is already in cache
[INFO] extracting crate gray-codes 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/gray-codes/0.1.1
[INFO] extracting crate gray-codes 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gray-codes/0.1.1
[INFO] validating manifest of gray-codes-0.1.1 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 gray-codes-0.1.1 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 gray-codes-0.1.1
[INFO] finished frobbing gray-codes-0.1.1
[INFO] frobbed toml for gray-codes-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/gray-codes/0.1.1/Cargo.toml
[INFO] started frobbing gray-codes-0.1.1
[INFO] finished frobbing gray-codes-0.1.1
[INFO] frobbed toml for gray-codes-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gray-codes/0.1.1/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 gray-codes-0.1.1 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gray-codes/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] dfb0d97c3927bce0043968ba0dfd8d67c28988436a594ea6a12d9cf290476f70
[INFO] running `"docker" "start" "-a" "dfb0d97c3927bce0043968ba0dfd8d67c28988436a594ea6a12d9cf290476f70"`
[INFO] [stderr]    Compiling gray-codes v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "dfb0d97c3927bce0043968ba0dfd8d67c28988436a594ea6a12d9cf290476f70"`
[INFO] running `"docker" "rm" "-f" "dfb0d97c3927bce0043968ba0dfd8d67c28988436a594ea6a12d9cf290476f70"`
[INFO] [stdout] dfb0d97c3927bce0043968ba0dfd8d67c28988436a594ea6a12d9cf290476f70
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gray-codes/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 80d6aa8be28b17823955194d7632bc3261df2e17fee06300e6d87772776071c8
[INFO] running `"docker" "start" "-a" "80d6aa8be28b17823955194d7632bc3261df2e17fee06300e6d87772776071c8"`
[INFO] [stderr]    Compiling gray-codes v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "80d6aa8be28b17823955194d7632bc3261df2e17fee06300e6d87772776071c8"`
[INFO] running `"docker" "rm" "-f" "80d6aa8be28b17823955194d7632bc3261df2e17fee06300e6d87772776071c8"`
[INFO] [stdout] 80d6aa8be28b17823955194d7632bc3261df2e17fee06300e6d87772776071c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gray-codes/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2a02368fcde263b32ec46134af66668616de7d527ec72d4d8900b6f267d3d186
[INFO] running `"docker" "start" "-a" "2a02368fcde263b32ec46134af66668616de7d527ec72d4d8900b6f267d3d186"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gray_codes-432d1c354cb79f9e
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test subsets ... ok
[INFO] [stdout] test gray_code_8 ... ok
[INFO] [stdout] test inclusion_exclusion ... ok
[INFO] [stdout] test gray_code_16 ... ok
[INFO] [stdout] test gray_code_32 ... ok
[INFO] [stdout] test gray_code_64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gray-codes
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - GrayCode16 (line 70) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode8 (line 70) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode32 (line 70) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode64 (line 70) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode16 (line 45) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode32 (line 45) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode64 (line 45) ... ok
[INFO] [stdout] test src/lib.rs - GrayCode8 (line 45) ... ok
[INFO] [stdout] test src/lib.rs - InclusionExclusion (line 276) ... ok
[INFO] [stdout] test src/lib.rs - InclusionExclusion (line 250) ... ok
[INFO] [stdout] test src/lib.rs - Subsets (line 394) ... ok
[INFO] [stdout] test src/lib.rs - Subsets (line 420) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2a02368fcde263b32ec46134af66668616de7d527ec72d4d8900b6f267d3d186"`
[INFO] running `"docker" "rm" "-f" "2a02368fcde263b32ec46134af66668616de7d527ec72d4d8900b6f267d3d186"`
[INFO] [stdout] 2a02368fcde263b32ec46134af66668616de7d527ec72d4d8900b6f267d3d186