Sep 10 14:48:31.995 INFO checking maze-0.1.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 14:48:31.995 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 14:48:31.995 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-5/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 14:48:32.184 INFO blam! 978f6f4b6786251ff8ffe00ebdeb2ed038237e13ad8f2762df69cd88b3e237fc
Sep 10 14:48:32.186 INFO running `"docker" "start" "-a" "978f6f4b6786251ff8ffe00ebdeb2ed038237e13ad8f2762df69cd88b3e237fc"`
Sep 10 14:48:32.898 INFO kablam! usermod: no changes
Sep 10 14:48:33.210 INFO kablam!     Checking css-color-parser v0.1.2
Sep 10 14:48:33.214 INFO kablam!     Checking png v0.5.2
Sep 10 14:48:33.214 INFO kablam!     Checking hyper v0.9.12
Sep 10 14:48:34.418 INFO kablam!     Checking image v0.10.4
Sep 10 14:48:37.938 INFO kablam!     Checking iron v0.4.0
Sep 10 14:48:39.430 INFO kablam!     Checking persistent v0.2.1
Sep 10 14:48:39.430 INFO kablam!     Checking router v0.4.0
Sep 10 14:48:40.570 INFO kablam!     Checking imageproc v0.6.1
Sep 10 14:48:40.833 INFO kablam!     Checking bodyparser v0.4.1
Sep 10 14:48:41.644 INFO kablam!     Checking urlencoded v0.4.1
Sep 10 14:48:42.795 INFO kablam!     Checking maze v0.1.2 (file:///source)
Sep 10 14:48:45.110 INFO kablam! warning: variable does not need to be mutable
Sep 10 14:48:45.110 INFO kablam!    --> src/types/grid.rs:191:13
Sep 10 14:48:45.110 INFO kablam!     |
Sep 10 14:48:45.110 INFO kablam! 191 |         let mut grid = self;
Sep 10 14:48:45.110 INFO kablam!     |             ----^^^^
Sep 10 14:48:45.110 INFO kablam!     |             |
Sep 10 14:48:45.110 INFO kablam!     |             help: remove this `mut`
Sep 10 14:48:45.110 INFO kablam!     |
Sep 10 14:48:45.110 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 14:48:45.110 INFO kablam! 
Sep 10 14:48:45.122 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 10 14:48:45.122 INFO kablam!  --> src/lib.rs:2:12
Sep 10 14:48:45.122 INFO kablam!   |
Sep 10 14:48:45.122 INFO kablam! 2 | #![feature(proc_macro)]
Sep 10 14:48:45.122 INFO kablam!   |            ^^^^^^^^^^
Sep 10 14:48:45.122 INFO kablam!   |
Sep 10 14:48:45.122 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 10 14:48:45.122 INFO kablam! 
Sep 10 14:48:45.210 INFO kablam! warning: variable does not need to be mutable
Sep 10 14:48:45.210 INFO kablam!    --> src/types/grid.rs:191:13
Sep 10 14:48:45.210 INFO kablam!     |
Sep 10 14:48:45.210 INFO kablam! 191 |         let mut grid = self;
Sep 10 14:48:45.210 INFO kablam!     |             ----^^^^
Sep 10 14:48:45.210 INFO kablam!     |             |
Sep 10 14:48:45.210 INFO kablam!     |             help: remove this `mut`
Sep 10 14:48:45.210 INFO kablam!     |
Sep 10 14:48:45.210 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 14:48:45.210 INFO kablam! 
Sep 10 14:48:45.222 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 10 14:48:45.222 INFO kablam!  --> src/lib.rs:2:12
Sep 10 14:48:45.222 INFO kablam!   |
Sep 10 14:48:45.222 INFO kablam! 2 | #![feature(proc_macro)]
Sep 10 14:48:45.222 INFO kablam!   |            ^^^^^^^^^^
Sep 10 14:48:45.222 INFO kablam!   |
Sep 10 14:48:45.222 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 10 14:48:45.222 INFO kablam! 
Sep 10 14:48:48.270 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 15.33s
Sep 10 14:48:48.287 INFO kablam! su: No module specific data is present
Sep 10 14:48:48.945 INFO running `"docker" "rm" "-f" "978f6f4b6786251ff8ffe00ebdeb2ed038237e13ad8f2762df69cd88b3e237fc"`
Sep 10 14:48:49.054 INFO blam! 978f6f4b6786251ff8ffe00ebdeb2ed038237e13ad8f2762df69cd88b3e237fc