[INFO] updating cached repository crazymerlyn/engine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/crazymerlyn/engine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/crazymerlyn/engine" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/crazymerlyn/engine"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/crazymerlyn/engine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/crazymerlyn/engine" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/crazymerlyn/engine"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/crazymerlyn/engine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6e5ccda8b5a7022a84c9a444b47a990967dfb2e
[INFO] sha for GitHub repo crazymerlyn/engine: b6e5ccda8b5a7022a84c9a444b47a990967dfb2e
[INFO] validating manifest of crazymerlyn/engine 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 crazymerlyn/engine 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 crazymerlyn/engine
[INFO] finished frobbing crazymerlyn/engine
[INFO] frobbed toml for crazymerlyn/engine written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/crazymerlyn/engine/Cargo.toml
[INFO] started frobbing crazymerlyn/engine
[INFO] finished frobbing crazymerlyn/engine
[INFO] frobbed toml for crazymerlyn/engine written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/crazymerlyn/engine/Cargo.toml
[INFO] crate crazymerlyn/engine 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking crazymerlyn/engine 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/crazymerlyn/engine:/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] 36c8b670b3f1587a93e73819c024a28b8fbfea8a4d3af3a78c9a147cc054a88b
[INFO] running `"docker" "start" "-a" "36c8b670b3f1587a93e73819c024a28b8fbfea8a4d3af3a78c9a147cc054a88b"`
[INFO] [stderr]     Checking engine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/boxes.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let mut border_left = style.lookup("border-left-width", "border-width", &zero);
[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/boxes.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut border_right = style.lookup("border-right-width", "border-width", &zero);
[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/boxes.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut padding_left = style.lookup("padding-left", "padding", &zero);
[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/boxes.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let mut padding_right = style.lookup("padding-right", "padding", &zero);
[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/boxes.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let mut border_left = style.lookup("border-left-width", "border-width", &zero);
[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/boxes.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut border_right = style.lookup("border-right-width", "border-width", &zero);
[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/boxes.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut padding_left = style.lookup("padding-left", "padding", &zero);
[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/boxes.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let mut padding_right = style.lookup("padding-right", "padding", &zero);
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "36c8b670b3f1587a93e73819c024a28b8fbfea8a4d3af3a78c9a147cc054a88b"`
[INFO] running `"docker" "rm" "-f" "36c8b670b3f1587a93e73819c024a28b8fbfea8a4d3af3a78c9a147cc054a88b"`
[INFO] [stdout] 36c8b670b3f1587a93e73819c024a28b8fbfea8a4d3af3a78c9a147cc054a88b