Dec 05 10:36:08.860 INFO checking maze-0.1.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:36:08.860 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 10:36:09.076 INFO [stdout] db5e9255e35db8828fc260b8764daeb7271e1a9bdfad1da0214025bccbfe8b3d
Dec 05 10:36:09.078 INFO running `"docker" "start" "-a" "db5e9255e35db8828fc260b8764daeb7271e1a9bdfad1da0214025bccbfe8b3d"`
Dec 05 10:36:09.528 INFO [stderr] usermod: no changes
Dec 05 10:36:09.827 INFO [stderr]     Checking css-color-parser v0.1.2
Dec 05 10:36:09.832 INFO [stderr]    Compiling serde_codegen v0.8.23
Dec 05 10:36:09.832 INFO [stderr]     Checking png v0.5.2
Dec 05 10:36:09.833 INFO [stderr]     Checking hyper v0.9.12
Dec 05 10:36:11.623 INFO [stderr]     Checking image v0.10.4
Dec 05 10:36:15.289 INFO [stderr]    Compiling serde_derive v0.8.23
Dec 05 10:36:16.915 INFO [stderr]     Checking iron v0.4.0
Dec 05 10:36:18.591 INFO [stderr]     Checking imageproc v0.6.1
Dec 05 10:36:20.419 INFO [stderr]     Checking persistent v0.2.1
Dec 05 10:36:20.419 INFO [stderr]     Checking router v0.4.0
Dec 05 10:36:26.077 INFO [stderr]     Checking bodyparser v0.4.1
Dec 05 10:36:29.703 INFO [stderr]     Checking urlencoded v0.4.1
Dec 05 10:36:33.156 INFO [stderr]     Checking maze v0.1.2 (/source)
Dec 05 10:36:42.667 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:36:42.667 INFO [stderr]    --> src/types/grid.rs:191:13
Dec 05 10:36:42.667 INFO [stderr]     |
Dec 05 10:36:42.667 INFO [stderr] 191 |         let mut grid = self;
Dec 05 10:36:42.667 INFO [stderr]     |             ----^^^^
Dec 05 10:36:42.667 INFO [stderr]     |             |
Dec 05 10:36:42.667 INFO [stderr]     |             help: remove this `mut`
Dec 05 10:36:42.667 INFO [stderr]     |
Dec 05 10:36:42.667 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 10:36:42.667 INFO [stderr] 
Dec 05 10:36:42.679 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 10:36:42.679 INFO [stderr]  --> src/lib.rs:2:12
Dec 05 10:36:42.679 INFO [stderr]   |
Dec 05 10:36:42.679 INFO [stderr] 2 | #![feature(proc_macro)]
Dec 05 10:36:42.679 INFO [stderr]   |            ^^^^^^^^^^
Dec 05 10:36:42.679 INFO [stderr]   |
Dec 05 10:36:42.679 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:36:42.679 INFO [stderr] 
Dec 05 10:36:42.851 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:36:42.851 INFO [stderr]    --> src/types/grid.rs:191:13
Dec 05 10:36:42.851 INFO [stderr]     |
Dec 05 10:36:42.851 INFO [stderr] 191 |         let mut grid = self;
Dec 05 10:36:42.851 INFO [stderr]     |             ----^^^^
Dec 05 10:36:42.851 INFO [stderr]     |             |
Dec 05 10:36:42.851 INFO [stderr]     |             help: remove this `mut`
Dec 05 10:36:42.851 INFO [stderr]     |
Dec 05 10:36:42.851 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 10:36:42.851 INFO [stderr] 
Dec 05 10:36:42.867 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 10:36:42.867 INFO [stderr]  --> src/lib.rs:2:12
Dec 05 10:36:42.867 INFO [stderr]   |
Dec 05 10:36:42.867 INFO [stderr] 2 | #![feature(proc_macro)]
Dec 05 10:36:42.867 INFO [stderr]   |            ^^^^^^^^^^
Dec 05 10:36:42.867 INFO [stderr]   |
Dec 05 10:36:42.867 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:36:42.867 INFO [stderr] 
Dec 05 10:36:54.448 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.90s
Dec 05 10:36:54.465 INFO [stderr] su: No module specific data is present
Dec 05 10:36:55.616 INFO running `"docker" "inspect" "db5e9255e35db8828fc260b8764daeb7271e1a9bdfad1da0214025bccbfe8b3d"`
Dec 05 10:36:55.949 INFO running `"docker" "rm" "-f" "db5e9255e35db8828fc260b8764daeb7271e1a9bdfad1da0214025bccbfe8b3d"`
Dec 05 10:36:56.191 INFO [stdout] db5e9255e35db8828fc260b8764daeb7271e1a9bdfad1da0214025bccbfe8b3d