Sep 01 14:22:33.151 INFO checking maze-0.1.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 14:22:33.151 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 14:22:33.151 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:22:33.299 INFO blam! 42c47ae44b1cdaffdaee7eef9a67dd685bffb24c65dc5792e80b05aef276a1ef
Sep 01 14:22:33.301 INFO running `"docker" "start" "-a" "42c47ae44b1cdaffdaee7eef9a67dd685bffb24c65dc5792e80b05aef276a1ef"`
Sep 01 14:22:34.119 INFO kablam!     Checking png v0.5.2
Sep 01 14:22:34.120 INFO kablam!     Checking hyper v0.9.12
Sep 01 14:22:36.332 INFO kablam!     Checking image v0.10.4
Sep 01 14:22:41.063 INFO kablam!     Checking iron v0.4.0
Sep 01 14:22:43.646 INFO kablam!     Checking persistent v0.2.1
Sep 01 14:22:43.646 INFO kablam!     Checking router v0.4.0
Sep 01 14:22:44.789 INFO kablam!     Checking imageproc v0.6.1
Sep 01 14:22:46.989 INFO kablam!     Checking bodyparser v0.4.1
Sep 01 14:22:49.948 INFO kablam!     Checking urlencoded v0.4.1
Sep 01 14:22:52.240 INFO kablam!     Checking maze v0.1.2 (file:///source)
Sep 01 14:22:57.605 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:22:57.605 INFO kablam!    --> src/types/grid.rs:191:13
Sep 01 14:22:57.605 INFO kablam!     |
Sep 01 14:22:57.605 INFO kablam! 191 |         let mut grid = self;
Sep 01 14:22:57.605 INFO kablam!     |             ----^^^^
Sep 01 14:22:57.605 INFO kablam!     |             |
Sep 01 14:22:57.605 INFO kablam!     |             help: remove this `mut`
Sep 01 14:22:57.605 INFO kablam!     |
Sep 01 14:22:57.605 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:22:57.605 INFO kablam! 
Sep 01 14:22:57.623 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:22:57.623 INFO kablam!    --> src/types/grid.rs:191:13
Sep 01 14:22:57.623 INFO kablam!     |
Sep 01 14:22:57.623 INFO kablam! 191 |         let mut grid = self;
Sep 01 14:22:57.623 INFO kablam!     |             ----^^^^
Sep 01 14:22:57.623 INFO kablam!     |             |
Sep 01 14:22:57.623 INFO kablam!     |             help: remove this `mut`
Sep 01 14:22:57.623 INFO kablam!     |
Sep 01 14:22:57.623 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:22:57.623 INFO kablam! 
Sep 01 14:22:57.629 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 01 14:22:57.629 INFO kablam!  --> src/lib.rs:2:12
Sep 01 14:22:57.629 INFO kablam!   |
Sep 01 14:22:57.629 INFO kablam! 2 | #![feature(proc_macro)]
Sep 01 14:22:57.629 INFO kablam!   |            ^^^^^^^^^^
Sep 01 14:22:57.629 INFO kablam!   |
Sep 01 14:22:57.629 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 14:22:57.629 INFO kablam! 
Sep 01 14:22:57.647 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 01 14:22:57.647 INFO kablam!  --> src/lib.rs:2:12
Sep 01 14:22:57.647 INFO kablam!   |
Sep 01 14:22:57.647 INFO kablam! 2 | #![feature(proc_macro)]
Sep 01 14:22:57.647 INFO kablam!   |            ^^^^^^^^^^
Sep 01 14:22:57.647 INFO kablam!   |
Sep 01 14:22:57.647 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 14:22:57.647 INFO kablam! 
Sep 01 14:23:03.852 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 29.99s
Sep 01 14:23:03.870 INFO kablam! su: No module specific data is present
Sep 01 14:23:04.391 INFO running `"docker" "rm" "-f" "42c47ae44b1cdaffdaee7eef9a67dd685bffb24c65dc5792e80b05aef276a1ef"`
Sep 01 14:23:04.508 INFO blam! 42c47ae44b1cdaffdaee7eef9a67dd685bffb24c65dc5792e80b05aef276a1ef