[INFO] crate looke 0.2.1 is already in cache
[INFO] extracting crate looke 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/looke/0.2.1
[INFO] extracting crate looke 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/looke/0.2.1
[INFO] validating manifest of looke-0.2.1 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 looke-0.2.1 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 looke-0.2.1
[INFO] finished frobbing looke-0.2.1
[INFO] frobbed toml for looke-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/looke/0.2.1/Cargo.toml
[INFO] started frobbing looke-0.2.1
[INFO] finished frobbing looke-0.2.1
[INFO] frobbed toml for looke-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/looke/0.2.1/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 looke-0.2.1 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-1/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/looke/0.2.1:/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] ad1a3570fbb44e64fab6fcb7e65f935a6bdb99334f2a3e909c1067757afd0d8c
[INFO] running `"docker" "start" "-a" "ad1a3570fbb44e64fab6fcb7e65f935a6bdb99334f2a3e909c1067757afd0d8c"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling looke v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/diff.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.68s
[INFO] running `"docker" "inspect" "ad1a3570fbb44e64fab6fcb7e65f935a6bdb99334f2a3e909c1067757afd0d8c"`
[INFO] running `"docker" "rm" "-f" "ad1a3570fbb44e64fab6fcb7e65f935a6bdb99334f2a3e909c1067757afd0d8c"`
[INFO] [stdout] ad1a3570fbb44e64fab6fcb7e65f935a6bdb99334f2a3e909c1067757afd0d8c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/looke/0.2.1:/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] af80cdca3c04eaaaf95b40a93415c825baf279345066ed41bb87a52a78ea6dda
[INFO] running `"docker" "start" "-a" "af80cdca3c04eaaaf95b40a93415c825baf279345066ed41bb87a52a78ea6dda"`
[INFO] [stderr]    Compiling looke v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/diff.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "af80cdca3c04eaaaf95b40a93415c825baf279345066ed41bb87a52a78ea6dda"`
[INFO] running `"docker" "rm" "-f" "af80cdca3c04eaaaf95b40a93415c825baf279345066ed41bb87a52a78ea6dda"`
[INFO] [stdout] af80cdca3c04eaaaf95b40a93415c825baf279345066ed41bb87a52a78ea6dda
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/looke/0.2.1:/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] 371c045caab13713b21d46c2e2f538b34a2a7f96f02ac6b0bdb2f654c783c98c
[INFO] running `"docker" "start" "-a" "371c045caab13713b21d46c2e2f538b34a2a7f96f02ac6b0bdb2f654c783c98c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/looke-4b216ce2504c9876
[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" "371c045caab13713b21d46c2e2f538b34a2a7f96f02ac6b0bdb2f654c783c98c"`
[INFO] running `"docker" "rm" "-f" "371c045caab13713b21d46c2e2f538b34a2a7f96f02ac6b0bdb2f654c783c98c"`
[INFO] [stdout] 371c045caab13713b21d46c2e2f538b34a2a7f96f02ac6b0bdb2f654c783c98c