Aug 30 02:49:05.978 INFO checking specs_engine-0.0.3 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 02:49:05.978 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 02:49:05.978 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 02:49:06.179 INFO blam! 2dc5f6193dbd534333c5a03586fc8cbaa430747982132d01ed196a746a4620a2
Aug 30 02:49:06.180 INFO running `"docker" "start" "-a" "2dc5f6193dbd534333c5a03586fc8cbaa430747982132d01ed196a746a4620a2"`
Aug 30 02:49:06.776 INFO kablam!     Checking slog v1.7.1
Aug 30 02:49:06.777 INFO kablam!     Checking specs v0.7.1
Aug 30 02:49:07.713 INFO kablam!     Checking slog-extra v0.1.2
Aug 30 02:49:08.367 INFO kablam!     Checking slog-stream v1.2.1
Aug 30 02:49:08.956 INFO kablam!     Checking slog-term v1.5.0
Aug 30 02:49:10.674 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Aug 30 02:49:12.165 INFO kablam! warning: variable does not need to be mutable
Aug 30 02:49:12.165 INFO kablam!   --> src/machine.rs:39:17
Aug 30 02:49:12.165 INFO kablam!    |
Aug 30 02:49:12.165 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 30 02:49:12.165 INFO kablam!    |                 ----^^^^^
Aug 30 02:49:12.165 INFO kablam!    |                 |
Aug 30 02:49:12.165 INFO kablam!    |                 help: remove this `mut`
Aug 30 02:49:12.166 INFO kablam!    |
Aug 30 02:49:12.166 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 02:49:12.166 INFO kablam! 
Aug 30 02:49:12.172 INFO kablam! warning: variable does not need to be mutable
Aug 30 02:49:12.172 INFO kablam!   --> src/machine.rs:73:30
Aug 30 02:49:12.172 INFO kablam!    |
Aug 30 02:49:12.172 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 30 02:49:12.172 INFO kablam!    |                              ----^^^^^
Aug 30 02:49:12.173 INFO kablam!    |                              |
Aug 30 02:49:12.173 INFO kablam!    |                              help: remove this `mut`
Aug 30 02:49:12.173 INFO kablam! 
Aug 30 02:49:12.288 INFO kablam! warning: variable does not need to be mutable
Aug 30 02:49:12.288 INFO kablam!   --> src/machine.rs:39:17
Aug 30 02:49:12.289 INFO kablam!    |
Aug 30 02:49:12.289 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 30 02:49:12.289 INFO kablam!    |                 ----^^^^^
Aug 30 02:49:12.289 INFO kablam!    |                 |
Aug 30 02:49:12.289 INFO kablam!    |                 help: remove this `mut`
Aug 30 02:49:12.289 INFO kablam!    |
Aug 30 02:49:12.289 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 02:49:12.289 INFO kablam! 
Aug 30 02:49:12.296 INFO kablam! warning: variable does not need to be mutable
Aug 30 02:49:12.296 INFO kablam!   --> src/machine.rs:73:30
Aug 30 02:49:12.296 INFO kablam!    |
Aug 30 02:49:12.296 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 30 02:49:12.296 INFO kablam!    |                              ----^^^^^
Aug 30 02:49:12.296 INFO kablam!    |                              |
Aug 30 02:49:12.296 INFO kablam!    |                              help: remove this `mut`
Aug 30 02:49:12.296 INFO kablam! 
Aug 30 02:49:13.080 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
Aug 30 02:49:13.084 INFO kablam! su: No module specific data is present
Aug 30 02:49:13.558 INFO running `"docker" "rm" "-f" "2dc5f6193dbd534333c5a03586fc8cbaa430747982132d01ed196a746a4620a2"`
Aug 30 02:49:13.638 INFO blam! 2dc5f6193dbd534333c5a03586fc8cbaa430747982132d01ed196a746a4620a2