Sep 19 19:51:50.607 INFO checking specs_engine-0.0.3 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 19:51:50.607 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 19:51:50.608 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-7/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 19:51:50.838 INFO blam! cfc932787ef35b5733f4bb5b33aa02402ce22c64726fc417fd7f29038a94326d
Sep 19 19:51:50.840 INFO running `"docker" "start" "-a" "cfc932787ef35b5733f4bb5b33aa02402ce22c64726fc417fd7f29038a94326d"`
Sep 19 19:51:51.866 INFO kablam! usermod: no changes
Sep 19 19:51:51.998 INFO kablam!     Checking slog v1.7.1
Sep 19 19:51:52.010 INFO kablam!     Checking pulse v0.5.3
Sep 19 19:51:52.854 INFO kablam!     Checking specs v0.7.1
Sep 19 19:51:53.022 INFO kablam!     Checking slog-extra v0.1.2
Sep 19 19:51:53.681 INFO kablam!     Checking slog-stream v1.2.1
Sep 19 19:51:54.207 INFO kablam!     Checking slog-term v1.5.0
Sep 19 19:51:56.370 INFO kablam!     Checking specs_engine v0.0.3 (/source)
Sep 19 19:51:56.930 INFO kablam! warning: variable does not need to be mutable
Sep 19 19:51:56.930 INFO kablam!   --> src/machine.rs:39:17
Sep 19 19:51:56.930 INFO kablam!    |
Sep 19 19:51:56.930 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 19 19:51:56.930 INFO kablam!    |                 ----^^^^^
Sep 19 19:51:56.930 INFO kablam!    |                 |
Sep 19 19:51:56.930 INFO kablam!    |                 help: remove this `mut`
Sep 19 19:51:56.930 INFO kablam!    |
Sep 19 19:51:56.930 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 19:51:56.930 INFO kablam! 
Sep 19 19:51:56.934 INFO kablam! warning: variable does not need to be mutable
Sep 19 19:51:56.934 INFO kablam!   --> src/machine.rs:73:30
Sep 19 19:51:56.934 INFO kablam!    |
Sep 19 19:51:56.934 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 19 19:51:56.934 INFO kablam!    |                              ----^^^^^
Sep 19 19:51:56.934 INFO kablam!    |                              |
Sep 19 19:51:56.934 INFO kablam!    |                              help: remove this `mut`
Sep 19 19:51:56.934 INFO kablam! 
Sep 19 19:51:56.995 INFO kablam! warning: variable does not need to be mutable
Sep 19 19:51:56.995 INFO kablam!   --> src/machine.rs:39:17
Sep 19 19:51:56.995 INFO kablam!    |
Sep 19 19:51:56.995 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 19 19:51:56.995 INFO kablam!    |                 ----^^^^^
Sep 19 19:51:56.995 INFO kablam!    |                 |
Sep 19 19:51:56.995 INFO kablam!    |                 help: remove this `mut`
Sep 19 19:51:56.995 INFO kablam!    |
Sep 19 19:51:56.995 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 19:51:56.995 INFO kablam! 
Sep 19 19:51:56.998 INFO kablam! warning: variable does not need to be mutable
Sep 19 19:51:56.998 INFO kablam!   --> src/machine.rs:73:30
Sep 19 19:51:56.998 INFO kablam!    |
Sep 19 19:51:56.998 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 19 19:51:56.998 INFO kablam!    |                              ----^^^^^
Sep 19 19:51:56.998 INFO kablam!    |                              |
Sep 19 19:51:56.998 INFO kablam!    |                              help: remove this `mut`
Sep 19 19:51:56.998 INFO kablam! 
Sep 19 19:51:57.524 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.63s
Sep 19 19:51:57.534 INFO kablam! su: No module specific data is present
Sep 19 19:51:57.969 INFO running `"docker" "rm" "-f" "cfc932787ef35b5733f4bb5b33aa02402ce22c64726fc417fd7f29038a94326d"`
Sep 19 19:51:58.050 INFO blam! cfc932787ef35b5733f4bb5b33aa02402ce22c64726fc417fd7f29038a94326d