Sep 10 09:24:45.997 INFO checking specs_engine-0.0.3 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 09:24:45.997 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 09:24:45.997 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 09:24:46.204 INFO blam! d7a3bb4645a46c8d106ae3113e74a570b3f64062e8f27570586c1d58bc504e14
Sep 10 09:24:46.206 INFO running `"docker" "start" "-a" "d7a3bb4645a46c8d106ae3113e74a570b3f64062e8f27570586c1d58bc504e14"`
Sep 10 09:24:48.197 INFO kablam! usermod: no changes
Sep 10 09:24:48.360 INFO kablam!     Checking slog v1.7.1
Sep 10 09:24:48.379 INFO kablam!     Checking pulse v0.5.3
Sep 10 09:24:49.168 INFO kablam!     Checking slog-extra v0.1.2
Sep 10 09:24:49.308 INFO kablam!     Checking specs v0.7.1
Sep 10 09:24:49.844 INFO kablam!     Checking slog-stream v1.2.1
Sep 10 09:24:50.258 INFO kablam!     Checking slog-term v1.5.0
Sep 10 09:24:52.266 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Sep 10 09:24:53.038 INFO kablam! warning: variable does not need to be mutable
Sep 10 09:24:53.038 INFO kablam!   --> src/machine.rs:39:17
Sep 10 09:24:53.038 INFO kablam!    |
Sep 10 09:24:53.038 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 10 09:24:53.038 INFO kablam!    |                 ----^^^^^
Sep 10 09:24:53.038 INFO kablam!    |                 |
Sep 10 09:24:53.038 INFO kablam!    |                 help: remove this `mut`
Sep 10 09:24:53.038 INFO kablam!    |
Sep 10 09:24:53.038 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 09:24:53.038 INFO kablam! 
Sep 10 09:24:53.042 INFO kablam! warning: variable does not need to be mutable
Sep 10 09:24:53.042 INFO kablam!   --> src/machine.rs:73:30
Sep 10 09:24:53.042 INFO kablam!    |
Sep 10 09:24:53.042 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 10 09:24:53.042 INFO kablam!    |                              ----^^^^^
Sep 10 09:24:53.042 INFO kablam!    |                              |
Sep 10 09:24:53.042 INFO kablam!    |                              help: remove this `mut`
Sep 10 09:24:53.042 INFO kablam! 
Sep 10 09:24:53.066 INFO kablam! warning: variable does not need to be mutable
Sep 10 09:24:53.066 INFO kablam!   --> src/machine.rs:39:17
Sep 10 09:24:53.066 INFO kablam!    |
Sep 10 09:24:53.066 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 10 09:24:53.066 INFO kablam!    |                 ----^^^^^
Sep 10 09:24:53.067 INFO kablam!    |                 |
Sep 10 09:24:53.067 INFO kablam!    |                 help: remove this `mut`
Sep 10 09:24:53.067 INFO kablam!    |
Sep 10 09:24:53.067 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 09:24:53.067 INFO kablam! 
Sep 10 09:24:53.069 INFO kablam! warning: variable does not need to be mutable
Sep 10 09:24:53.069 INFO kablam!   --> src/machine.rs:73:30
Sep 10 09:24:53.069 INFO kablam!    |
Sep 10 09:24:53.069 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 10 09:24:53.069 INFO kablam!    |                              ----^^^^^
Sep 10 09:24:53.069 INFO kablam!    |                              |
Sep 10 09:24:53.069 INFO kablam!    |                              help: remove this `mut`
Sep 10 09:24:53.074 INFO kablam! 
Sep 10 09:24:53.608 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.37s
Sep 10 09:24:53.622 INFO kablam! su: No module specific data is present
Sep 10 09:24:54.131 INFO running `"docker" "rm" "-f" "d7a3bb4645a46c8d106ae3113e74a570b3f64062e8f27570586c1d58bc504e14"`
Sep 10 09:24:54.213 INFO blam! d7a3bb4645a46c8d106ae3113e74a570b3f64062e8f27570586c1d58bc504e14