Sep 19 22:30:51.361 INFO checking maze-0.1.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 22:30:51.361 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 22:30:51.361 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 22:30:51.507 INFO blam! 2e1320b2f97d861fa9979bb26fe2f7741f69143536916b241add685f3b8695d4
Sep 19 22:30:51.508 INFO running `"docker" "start" "-a" "2e1320b2f97d861fa9979bb26fe2f7741f69143536916b241add685f3b8695d4"`
Sep 19 22:30:52.655 INFO kablam! usermod: no changes
Sep 19 22:30:52.966 INFO kablam!     Checking png v0.5.2
Sep 19 22:30:52.966 INFO kablam!     Checking hyper v0.9.12
Sep 19 22:30:54.350 INFO kablam!     Checking image v0.10.4
Sep 19 22:30:57.966 INFO kablam!     Checking iron v0.4.0
Sep 19 22:30:59.099 INFO kablam!     Checking persistent v0.2.1
Sep 19 22:30:59.099 INFO kablam!     Checking router v0.4.0
Sep 19 22:30:59.735 INFO kablam!     Checking imageproc v0.6.1
Sep 19 22:31:00.047 INFO kablam!     Checking bodyparser v0.4.1
Sep 19 22:31:01.118 INFO kablam!     Checking urlencoded v0.4.1
Sep 19 22:31:02.487 INFO kablam!     Checking maze v0.1.2 (/source)
Sep 19 22:31:05.355 INFO kablam! warning: variable does not need to be mutable
Sep 19 22:31:05.355 INFO kablam!    --> src/types/grid.rs:191:13
Sep 19 22:31:05.355 INFO kablam!     |
Sep 19 22:31:05.355 INFO kablam! 191 |         let mut grid = self;
Sep 19 22:31:05.355 INFO kablam!     |             ----^^^^
Sep 19 22:31:05.355 INFO kablam!     |             |
Sep 19 22:31:05.355 INFO kablam!     |             help: remove this `mut`
Sep 19 22:31:05.355 INFO kablam!     |
Sep 19 22:31:05.355 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 19 22:31:05.355 INFO kablam! 
Sep 19 22:31:05.367 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 19 22:31:05.367 INFO kablam!  --> src/lib.rs:2:12
Sep 19 22:31:05.367 INFO kablam!   |
Sep 19 22:31:05.367 INFO kablam! 2 | #![feature(proc_macro)]
Sep 19 22:31:05.367 INFO kablam!   |            ^^^^^^^^^^
Sep 19 22:31:05.367 INFO kablam!   |
Sep 19 22:31:05.367 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 19 22:31:05.367 INFO kablam! 
Sep 19 22:31:05.594 INFO kablam! warning: variable does not need to be mutable
Sep 19 22:31:05.594 INFO kablam!    --> src/types/grid.rs:191:13
Sep 19 22:31:05.594 INFO kablam!     |
Sep 19 22:31:05.594 INFO kablam! 191 |         let mut grid = self;
Sep 19 22:31:05.594 INFO kablam!     |             ----^^^^
Sep 19 22:31:05.594 INFO kablam!     |             |
Sep 19 22:31:05.594 INFO kablam!     |             help: remove this `mut`
Sep 19 22:31:05.594 INFO kablam!     |
Sep 19 22:31:05.594 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 19 22:31:05.594 INFO kablam! 
Sep 19 22:31:05.611 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 19 22:31:05.611 INFO kablam!  --> src/lib.rs:2:12
Sep 19 22:31:05.611 INFO kablam!   |
Sep 19 22:31:05.611 INFO kablam! 2 | #![feature(proc_macro)]
Sep 19 22:31:05.611 INFO kablam!   |            ^^^^^^^^^^
Sep 19 22:31:05.611 INFO kablam!   |
Sep 19 22:31:05.611 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 19 22:31:05.611 INFO kablam! 
Sep 19 22:31:08.387 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 15.72s
Sep 19 22:31:08.404 INFO kablam! su: No module specific data is present
Sep 19 22:31:09.021 INFO running `"docker" "rm" "-f" "2e1320b2f97d861fa9979bb26fe2f7741f69143536916b241add685f3b8695d4"`
Sep 19 22:31:09.103 INFO blam! 2e1320b2f97d861fa9979bb26fe2f7741f69143536916b241add685f3b8695d4