[INFO] crate art_unhumble_ben 0.1.0 is already in cache
[INFO] extracting crate art_unhumble_ben 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/art_unhumble_ben/0.1.0
[INFO] extracting crate art_unhumble_ben 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/art_unhumble_ben/0.1.0
[INFO] validating manifest of art_unhumble_ben-0.1.0 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 art_unhumble_ben-0.1.0 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 art_unhumble_ben-0.1.0
[INFO] finished frobbing art_unhumble_ben-0.1.0
[INFO] frobbed toml for art_unhumble_ben-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/art_unhumble_ben/0.1.0/Cargo.toml
[INFO] started frobbing art_unhumble_ben-0.1.0
[INFO] finished frobbing art_unhumble_ben-0.1.0
[INFO] frobbed toml for art_unhumble_ben-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/art_unhumble_ben/0.1.0/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 art_unhumble_ben-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/art_unhumble_ben/0.1.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6be9d0300da0ce141cafa40fc8a2918292e3541205a0fdf98e6dea45bb9847b0
[INFO] running `"docker" "start" "-a" "6be9d0300da0ce141cafa40fc8a2918292e3541205a0fdf98e6dea45bb9847b0"`
[INFO] [stderr]    Compiling art_unhumble_ben v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                ^^ help: consider prefixing with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:30:34
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "6be9d0300da0ce141cafa40fc8a2918292e3541205a0fdf98e6dea45bb9847b0"`
[INFO] running `"docker" "rm" "-f" "6be9d0300da0ce141cafa40fc8a2918292e3541205a0fdf98e6dea45bb9847b0"`
[INFO] [stdout] 6be9d0300da0ce141cafa40fc8a2918292e3541205a0fdf98e6dea45bb9847b0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/art_unhumble_ben/0.1.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f83e786b554a70c44ec469b77a8976a083e85e7c46f7f880d1105c86a6d83572
[INFO] running `"docker" "start" "-a" "f83e786b554a70c44ec469b77a8976a083e85e7c46f7f880d1105c86a6d83572"`
[INFO] [stderr]    Compiling art_unhumble_ben v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                ^^ help: consider prefixing with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:30:34
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "f83e786b554a70c44ec469b77a8976a083e85e7c46f7f880d1105c86a6d83572"`
[INFO] running `"docker" "rm" "-f" "f83e786b554a70c44ec469b77a8976a083e85e7c46f7f880d1105c86a6d83572"`
[INFO] [stdout] f83e786b554a70c44ec469b77a8976a083e85e7c46f7f880d1105c86a6d83572
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/art_unhumble_ben/0.1.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 30f8e4af02070bf203c1890474445b1f14432fcdb3de38769943aa29a587fefd
[INFO] running `"docker" "start" "-a" "30f8e4af02070bf203c1890474445b1f14432fcdb3de38769943aa29a587fefd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/art_unhumble_ben-c3f4ca9c0c9159bc
[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]    Doc-tests art_unhumble_ben
[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" "30f8e4af02070bf203c1890474445b1f14432fcdb3de38769943aa29a587fefd"`
[INFO] running `"docker" "rm" "-f" "30f8e4af02070bf203c1890474445b1f14432fcdb3de38769943aa29a587fefd"`
[INFO] [stdout] 30f8e4af02070bf203c1890474445b1f14432fcdb3de38769943aa29a587fefd