[INFO] crate xterm256_converter 0.2.1 is already in cache
[INFO] extracting crate xterm256_converter 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/xterm256_converter/0.2.1
[INFO] extracting crate xterm256_converter 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/xterm256_converter/0.2.1
[INFO] validating manifest of xterm256_converter-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 xterm256_converter-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 xterm256_converter-0.2.1
[INFO] finished frobbing xterm256_converter-0.2.1
[INFO] frobbed toml for xterm256_converter-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/xterm256_converter/0.2.1/Cargo.toml
[INFO] started frobbing xterm256_converter-0.2.1
[INFO] finished frobbing xterm256_converter-0.2.1
[INFO] frobbed toml for xterm256_converter-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/xterm256_converter/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 xterm256_converter-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/xterm256_converter/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] a355893f16d74fbdc99c42535333fc4fbf823fa1f9e4c4726c8a0bf23c90c327
[INFO] running `"docker" "start" "-a" "a355893f16d74fbdc99c42535333fc4fbf823fa1f9e4c4726c8a0bf23c90c327"`
[INFO] [stderr]    Compiling xterm256_converter v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:130:17
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let mut transition = color_code_bg;
[INFO] [stderr]     |                 ----^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `"docker" "inspect" "a355893f16d74fbdc99c42535333fc4fbf823fa1f9e4c4726c8a0bf23c90c327"`
[INFO] running `"docker" "rm" "-f" "a355893f16d74fbdc99c42535333fc4fbf823fa1f9e4c4726c8a0bf23c90c327"`
[INFO] [stdout] a355893f16d74fbdc99c42535333fc4fbf823fa1f9e4c4726c8a0bf23c90c327
[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/xterm256_converter/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] 84cd1e2b4c5a515c65dc9386e74e255bb299e2d1bb694067370a082012b3061d
[INFO] running `"docker" "start" "-a" "84cd1e2b4c5a515c65dc9386e74e255bb299e2d1bb694067370a082012b3061d"`
[INFO] [stderr]    Compiling xterm256_converter v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:130:17
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let mut transition = color_code_bg;
[INFO] [stderr]     |                 ----^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `"docker" "inspect" "84cd1e2b4c5a515c65dc9386e74e255bb299e2d1bb694067370a082012b3061d"`
[INFO] running `"docker" "rm" "-f" "84cd1e2b4c5a515c65dc9386e74e255bb299e2d1bb694067370a082012b3061d"`
[INFO] [stdout] 84cd1e2b4c5a515c65dc9386e74e255bb299e2d1bb694067370a082012b3061d
[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/xterm256_converter/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] 6f2b1dd4318e87f82913ccbfacfd9f8559c47830d7dd2ed7fe9e76350e88d0b2
[INFO] running `"docker" "start" "-a" "6f2b1dd4318e87f82913ccbfacfd9f8559c47830d7dd2ed7fe9e76350e88d0b2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xterm256_converter-12fda0667120a44e
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xt256_conv-1604235a4ad4b255
[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] [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 xterm256_converter
[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" "6f2b1dd4318e87f82913ccbfacfd9f8559c47830d7dd2ed7fe9e76350e88d0b2"`
[INFO] running `"docker" "rm" "-f" "6f2b1dd4318e87f82913ccbfacfd9f8559c47830d7dd2ed7fe9e76350e88d0b2"`
[INFO] [stdout] 6f2b1dd4318e87f82913ccbfacfd9f8559c47830d7dd2ed7fe9e76350e88d0b2