Dec 18 02:07:38.729 INFO checking crazymerlyn/engine against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 02:07:38.729 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:07:39.122 INFO [stdout] 40eb37abb51b7829c1520c7f4c1c206296052a4528db69a917b1f21d1769f252
Dec 18 02:07:39.124 INFO running `"docker" "start" "-a" "40eb37abb51b7829c1520c7f4c1c206296052a4528db69a917b1f21d1769f252"`
Dec 18 02:07:41.032 INFO [stderr]     Checking engine v0.1.0 (/opt/crater/workdir)
Dec 18 02:07:41.644 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.644 INFO [stderr]    --> src/boxes.rs:106:13
Dec 18 02:07:41.644 INFO [stderr]     |
Dec 18 02:07:41.644 INFO [stderr] 106 |         let mut border_left = style.lookup("border-left-width", "border-width", &zero);
Dec 18 02:07:41.644 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 18 02:07:41.644 INFO [stderr]     |             |
Dec 18 02:07:41.644 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.644 INFO [stderr]     |
Dec 18 02:07:41.644 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 02:07:41.644 INFO [stderr] 
Dec 18 02:07:41.644 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.644 INFO [stderr]    --> src/boxes.rs:107:13
Dec 18 02:07:41.644 INFO [stderr]     |
Dec 18 02:07:41.644 INFO [stderr] 107 |         let mut border_right = style.lookup("border-right-width", "border-width", &zero);
Dec 18 02:07:41.644 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 18 02:07:41.644 INFO [stderr]     |             |
Dec 18 02:07:41.644 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.644 INFO [stderr] 
Dec 18 02:07:41.644 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.644 INFO [stderr]    --> src/boxes.rs:109:13
Dec 18 02:07:41.644 INFO [stderr]     |
Dec 18 02:07:41.644 INFO [stderr] 109 |         let mut padding_left = style.lookup("padding-left", "padding", &zero);
Dec 18 02:07:41.644 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 18 02:07:41.644 INFO [stderr]     |             |
Dec 18 02:07:41.644 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.644 INFO [stderr] 
Dec 18 02:07:41.644 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.644 INFO [stderr]    --> src/boxes.rs:110:13
Dec 18 02:07:41.644 INFO [stderr]     |
Dec 18 02:07:41.644 INFO [stderr] 110 |         let mut padding_right = style.lookup("padding-right", "padding", &zero);
Dec 18 02:07:41.644 INFO [stderr]     |             ----^^^^^^^^^^^^^
Dec 18 02:07:41.644 INFO [stderr]     |             |
Dec 18 02:07:41.644 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.644 INFO [stderr] 
Dec 18 02:07:41.711 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.711 INFO [stderr]    --> src/boxes.rs:106:13
Dec 18 02:07:41.711 INFO [stderr]     |
Dec 18 02:07:41.712 INFO [stderr] 106 |         let mut border_left = style.lookup("border-left-width", "border-width", &zero);
Dec 18 02:07:41.712 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 18 02:07:41.712 INFO [stderr]     |             |
Dec 18 02:07:41.712 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.712 INFO [stderr]     |
Dec 18 02:07:41.712 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 02:07:41.712 INFO [stderr] 
Dec 18 02:07:41.716 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.716 INFO [stderr]    --> src/boxes.rs:107:13
Dec 18 02:07:41.716 INFO [stderr]     |
Dec 18 02:07:41.716 INFO [stderr] 107 |         let mut border_right = style.lookup("border-right-width", "border-width", &zero);
Dec 18 02:07:41.716 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 18 02:07:41.716 INFO [stderr]     |             |
Dec 18 02:07:41.716 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.716 INFO [stderr] 
Dec 18 02:07:41.716 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.716 INFO [stderr]    --> src/boxes.rs:109:13
Dec 18 02:07:41.716 INFO [stderr]     |
Dec 18 02:07:41.716 INFO [stderr] 109 |         let mut padding_left = style.lookup("padding-left", "padding", &zero);
Dec 18 02:07:41.716 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 18 02:07:41.716 INFO [stderr]     |             |
Dec 18 02:07:41.716 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.716 INFO [stderr] 
Dec 18 02:07:41.716 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:07:41.716 INFO [stderr]    --> src/boxes.rs:110:13
Dec 18 02:07:41.716 INFO [stderr]     |
Dec 18 02:07:41.716 INFO [stderr] 110 |         let mut padding_right = style.lookup("padding-right", "padding", &zero);
Dec 18 02:07:41.716 INFO [stderr]     |             ----^^^^^^^^^^^^^
Dec 18 02:07:41.716 INFO [stderr]     |             |
Dec 18 02:07:41.716 INFO [stderr]     |             help: remove this `mut`
Dec 18 02:07:41.716 INFO [stderr] 
Dec 18 02:07:41.758 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 18 02:07:42.684 INFO running `"docker" "inspect" "40eb37abb51b7829c1520c7f4c1c206296052a4528db69a917b1f21d1769f252"`
Dec 18 02:07:42.938 INFO running `"docker" "rm" "-f" "40eb37abb51b7829c1520c7f4c1c206296052a4528db69a917b1f21d1769f252"`
Dec 18 02:07:43.212 INFO [stdout] 40eb37abb51b7829c1520c7f4c1c206296052a4528db69a917b1f21d1769f252