Jul 11 21:20:10.512 INFO checking specs_engine-0.0.3 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 11 21:20:10.512 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 21:20:10.512 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 21:20:10.512 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-3/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 11 21:20:10.755 INFO blam! 4d8f04d2680c7d9966dd81cc517dc33f9d86f1fd8d72cc30a401c2880f443108
Jul 11 21:20:10.758 INFO running `"docker" "start" "-a" "4d8f04d2680c7d9966dd81cc517dc33f9d86f1fd8d72cc30a401c2880f443108"`
Jul 11 21:20:11.807 INFO kablam!     Checking slog v1.7.1
Jul 11 21:20:11.818 INFO kablam!     Checking pulse v0.5.3
Jul 11 21:20:13.494 INFO kablam!     Checking specs v0.7.1
Jul 11 21:20:13.819 INFO kablam!     Checking slog-extra v0.1.2
Jul 11 21:20:15.099 INFO kablam!     Checking slog-stream v1.2.1
Jul 11 21:20:16.052 INFO kablam!     Checking slog-term v1.5.0
Jul 11 21:20:21.112 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Jul 11 21:20:23.089 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:20:23.089 INFO kablam!   --> src/machine.rs:39:17
Jul 11 21:20:23.089 INFO kablam!    |
Jul 11 21:20:23.089 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Jul 11 21:20:23.089 INFO kablam!    |                 ----^^^^^
Jul 11 21:20:23.089 INFO kablam!    |                 |
Jul 11 21:20:23.089 INFO kablam!    |                 help: remove this `mut`
Jul 11 21:20:23.089 INFO kablam!    |
Jul 11 21:20:23.089 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 21:20:23.089 INFO kablam! 
Jul 11 21:20:23.113 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:20:23.113 INFO kablam!   --> src/machine.rs:73:30
Jul 11 21:20:23.113 INFO kablam!    |
Jul 11 21:20:23.113 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Jul 11 21:20:23.113 INFO kablam!    |                              ----^^^^^
Jul 11 21:20:23.113 INFO kablam!    |                              |
Jul 11 21:20:23.113 INFO kablam!    |                              help: remove this `mut`
Jul 11 21:20:23.113 INFO kablam! 
Jul 11 21:20:23.218 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:20:23.218 INFO kablam!   --> src/machine.rs:39:17
Jul 11 21:20:23.218 INFO kablam!    |
Jul 11 21:20:23.218 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Jul 11 21:20:23.218 INFO kablam!    |                 ----^^^^^
Jul 11 21:20:23.218 INFO kablam!    |                 |
Jul 11 21:20:23.218 INFO kablam!    |                 help: remove this `mut`
Jul 11 21:20:23.222 INFO kablam!    |
Jul 11 21:20:23.222 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 21:20:23.222 INFO kablam! 
Jul 11 21:20:23.239 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:20:23.239 INFO kablam!   --> src/machine.rs:73:30
Jul 11 21:20:23.239 INFO kablam!    |
Jul 11 21:20:23.239 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Jul 11 21:20:23.239 INFO kablam!    |                              ----^^^^^
Jul 11 21:20:23.239 INFO kablam!    |                              |
Jul 11 21:20:23.239 INFO kablam!    |                              help: remove this `mut`
Jul 11 21:20:23.240 INFO kablam! 
Jul 11 21:20:24.232 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.59s
Jul 11 21:20:24.239 INFO kablam! su: No module specific data is present
Jul 11 21:20:24.777 INFO running `"docker" "rm" "-f" "4d8f04d2680c7d9966dd81cc517dc33f9d86f1fd8d72cc30a401c2880f443108"`
Jul 11 21:20:24.930 INFO blam! 4d8f04d2680c7d9966dd81cc517dc33f9d86f1fd8d72cc30a401c2880f443108