Sep 21 07:11:43.923 INFO checking maze-0.1.2 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 07:11:43.923 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 07:11:43.923 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 07:11:44.037 INFO blam! f42dd85714124871337115adae751ee70ffa82d54068e10ac287d4f778ab51cf
Sep 21 07:11:44.038 INFO running `"docker" "start" "-a" "f42dd85714124871337115adae751ee70ffa82d54068e10ac287d4f778ab51cf"`
Sep 21 07:11:45.040 INFO kablam! usermod: no changes
Sep 21 07:11:45.342 INFO kablam!     Checking png v0.5.2
Sep 21 07:11:45.343 INFO kablam!     Checking hyper v0.9.12
Sep 21 07:11:45.343 INFO kablam!     Checking nalgebra v0.5.1
Sep 21 07:11:46.562 INFO kablam!     Checking image v0.10.4
Sep 21 07:11:51.447 INFO kablam!     Checking iron v0.4.0
Sep 21 07:11:53.161 INFO kablam!     Checking persistent v0.2.1
Sep 21 07:11:53.161 INFO kablam!     Checking router v0.4.0
Sep 21 07:11:54.536 INFO kablam!     Checking bodyparser v0.4.1
Sep 21 07:11:55.609 INFO kablam!     Checking urlencoded v0.4.1
Sep 21 07:11:56.416 INFO kablam!     Checking imageproc v0.6.1
Sep 21 07:11:58.387 INFO kablam!     Checking maze v0.1.2 (/source)
Sep 21 07:12:00.322 INFO kablam! warning: variable does not need to be mutable
Sep 21 07:12:00.322 INFO kablam!    --> src/types/grid.rs:191:13
Sep 21 07:12:00.322 INFO kablam!     |
Sep 21 07:12:00.322 INFO kablam! 191 |         let mut grid = self;
Sep 21 07:12:00.322 INFO kablam!     |             ----^^^^
Sep 21 07:12:00.322 INFO kablam!     |             |
Sep 21 07:12:00.322 INFO kablam!     |             help: remove this `mut`
Sep 21 07:12:00.322 INFO kablam!     |
Sep 21 07:12:00.322 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 07:12:00.322 INFO kablam! 
Sep 21 07:12:00.334 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 21 07:12:00.334 INFO kablam!  --> src/lib.rs:2:12
Sep 21 07:12:00.334 INFO kablam!   |
Sep 21 07:12:00.334 INFO kablam! 2 | #![feature(proc_macro)]
Sep 21 07:12:00.334 INFO kablam!   |            ^^^^^^^^^^
Sep 21 07:12:00.334 INFO kablam!   |
Sep 21 07:12:00.334 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 21 07:12:00.334 INFO kablam! 
Sep 21 07:12:00.462 INFO kablam! warning: variable does not need to be mutable
Sep 21 07:12:00.462 INFO kablam!    --> src/types/grid.rs:191:13
Sep 21 07:12:00.462 INFO kablam!     |
Sep 21 07:12:00.462 INFO kablam! 191 |         let mut grid = self;
Sep 21 07:12:00.462 INFO kablam!     |             ----^^^^
Sep 21 07:12:00.462 INFO kablam!     |             |
Sep 21 07:12:00.462 INFO kablam!     |             help: remove this `mut`
Sep 21 07:12:00.462 INFO kablam!     |
Sep 21 07:12:00.462 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 07:12:00.462 INFO kablam! 
Sep 21 07:12:00.470 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Sep 21 07:12:00.470 INFO kablam!  --> src/lib.rs:2:12
Sep 21 07:12:00.470 INFO kablam!   |
Sep 21 07:12:00.470 INFO kablam! 2 | #![feature(proc_macro)]
Sep 21 07:12:00.470 INFO kablam!   |            ^^^^^^^^^^
Sep 21 07:12:00.470 INFO kablam!   |
Sep 21 07:12:00.470 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 21 07:12:00.470 INFO kablam! 
Sep 21 07:12:03.527 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 18.47s
Sep 21 07:12:03.562 INFO kablam! su: No module specific data is present
Sep 21 07:12:04.405 INFO running `"docker" "rm" "-f" "f42dd85714124871337115adae751ee70ffa82d54068e10ac287d4f778ab51cf"`
Sep 21 07:12:04.518 INFO blam! f42dd85714124871337115adae751ee70ffa82d54068e10ac287d4f778ab51cf