[INFO] updating cached repository zhouyuexie/color-convert
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zhouyuexie/color-convert
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zhouyuexie/color-convert" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/zhouyuexie/color-convert"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/zhouyuexie/color-convert'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zhouyuexie/color-convert" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/zhouyuexie/color-convert"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/zhouyuexie/color-convert'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 528eb5d880a697878c054781d14b860346dcc3a4
[INFO] sha for GitHub repo zhouyuexie/color-convert: 528eb5d880a697878c054781d14b860346dcc3a4
[INFO] validating manifest of zhouyuexie/color-convert on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zhouyuexie/color-convert on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zhouyuexie/color-convert
[INFO] finished frobbing zhouyuexie/color-convert
[INFO] frobbed toml for zhouyuexie/color-convert written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/zhouyuexie/color-convert/Cargo.toml
[INFO] started frobbing zhouyuexie/color-convert
[INFO] finished frobbing zhouyuexie/color-convert
[INFO] frobbed toml for zhouyuexie/color-convert written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/zhouyuexie/color-convert/Cargo.toml
[INFO] crate zhouyuexie/color-convert already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking zhouyuexie/color-convert against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/zhouyuexie/color-convert:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fce47a326a69dcbced4f6e7f5c9ff4ac8ca3c71335b6be6e78be691b7a259b26
[INFO] running `"docker" "start" "-a" "fce47a326a69dcbced4f6e7f5c9ff4ac8ca3c71335b6be6e78be691b7a259b26"`
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking color-convert v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/handles/hsl.rs:37:7
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut s = utils::convert_alpha_value_to_number(&value["s"]);
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/handles/hsl.rs:38:7
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut l = utils::convert_alpha_value_to_number(&value["l"]);
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/handles/hsl.rs:37:7
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut s = utils::convert_alpha_value_to_number(&value["s"]);
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/handles/hsl.rs:38:7
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut l = utils::convert_alpha_value_to_number(&value["l"]);
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `"docker" "inspect" "fce47a326a69dcbced4f6e7f5c9ff4ac8ca3c71335b6be6e78be691b7a259b26"`
[INFO] running `"docker" "rm" "-f" "fce47a326a69dcbced4f6e7f5c9ff4ac8ca3c71335b6be6e78be691b7a259b26"`
[INFO] [stdout] fce47a326a69dcbced4f6e7f5c9ff4ac8ca3c71335b6be6e78be691b7a259b26