Sep 01 14:22:33.049 INFO checking maze-0.1.2 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 14:22:33.049 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 14:22:33.049 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:22:33.190 INFO blam! e8ab0be794e447713d042c4ac8442fd3c8a5fa28a02a5d3b9300861f1fd46b1d
Sep 01 14:22:33.192 INFO running `"docker" "start" "-a" "e8ab0be794e447713d042c4ac8442fd3c8a5fa28a02a5d3b9300861f1fd46b1d"`
Sep 01 14:22:33.957 INFO kablam!     Checking css-color-parser v0.1.2
Sep 01 14:22:33.961 INFO kablam!     Checking png v0.5.2
Sep 01 14:22:33.963 INFO kablam!     Checking hyper v0.9.12
Sep 01 14:22:33.963 INFO kablam!     Checking nalgebra v0.5.1
Sep 01 14:22:36.212 INFO kablam!     Checking image v0.10.4
Sep 01 14:22:41.799 INFO kablam!     Checking iron v0.4.0
Sep 01 14:22:44.883 INFO kablam!     Checking persistent v0.2.1
Sep 01 14:22:44.885 INFO kablam!     Checking router v0.4.0
Sep 01 14:22:49.313 INFO kablam!     Checking bodyparser v0.4.1
Sep 01 14:22:51.297 INFO kablam!     Checking imageproc v0.6.1
Sep 01 14:22:51.961 INFO kablam!     Checking urlencoded v0.4.1
Sep 01 14:22:55.892 INFO kablam!     Checking maze v0.1.2 (file:///source)
Sep 01 14:23:01.991 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:23:01.991 INFO kablam!    --> src/types/grid.rs:191:13
Sep 01 14:23:01.992 INFO kablam!     |
Sep 01 14:23:01.992 INFO kablam! 191 |         let mut grid = self;
Sep 01 14:23:01.992 INFO kablam!     |             ----^^^^
Sep 01 14:23:01.992 INFO kablam!     |             |
Sep 01 14:23:01.992 INFO kablam!     |             help: remove this `mut`
Sep 01 14:23:01.992 INFO kablam!     |
Sep 01 14:23:01.992 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:23:01.992 INFO kablam! 
Sep 01 14:23:02.008 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:23:02.008 INFO kablam!    --> src/types/grid.rs:191:13
Sep 01 14:23:02.008 INFO kablam!     |
Sep 01 14:23:02.008 INFO kablam! 191 |         let mut grid = self;
Sep 01 14:23:02.008 INFO kablam!     |             ----^^^^
Sep 01 14:23:02.008 INFO kablam!     |             |
Sep 01 14:23:02.008 INFO kablam!     |             help: remove this `mut`
Sep 01 14:23:02.008 INFO kablam!     |
Sep 01 14:23:02.008 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:23:02.008 INFO kablam! 
Sep 01 14:23:02.017 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 01 14:23:02.017 INFO kablam!  --> src/lib.rs:2:12
Sep 01 14:23:02.017 INFO kablam!   |
Sep 01 14:23:02.017 INFO kablam! 2 | #![feature(proc_macro)]
Sep 01 14:23:02.017 INFO kablam!   |            ^^^^^^^^^^
Sep 01 14:23:02.017 INFO kablam!   |
Sep 01 14:23:02.017 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 14:23:02.017 INFO kablam! 
Sep 01 14:23:02.032 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 01 14:23:02.032 INFO kablam!  --> src/lib.rs:2:12
Sep 01 14:23:02.032 INFO kablam!   |
Sep 01 14:23:02.032 INFO kablam! 2 | #![feature(proc_macro)]
Sep 01 14:23:02.032 INFO kablam!   |            ^^^^^^^^^^
Sep 01 14:23:02.033 INFO kablam!   |
Sep 01 14:23:02.033 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 14:23:02.033 INFO kablam! 
Sep 01 14:23:07.767 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 34.03s
Sep 01 14:23:07.779 INFO kablam! su: No module specific data is present
Sep 01 14:23:08.341 INFO running `"docker" "rm" "-f" "e8ab0be794e447713d042c4ac8442fd3c8a5fa28a02a5d3b9300861f1fd46b1d"`
Sep 01 14:23:08.422 INFO blam! e8ab0be794e447713d042c4ac8442fd3c8a5fa28a02a5d3b9300861f1fd46b1d