Sep 04 05:46:29.475 INFO checking specs_engine-0.0.3 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 05:46:29.476 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 05:46:29.476 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 05:46:29.667 INFO blam! 0ce65d88b01441ef4af256b9e7184004a05bf63683b48e790b9ce70f3549f33e
Sep 04 05:46:29.669 INFO running `"docker" "start" "-a" "0ce65d88b01441ef4af256b9e7184004a05bf63683b48e790b9ce70f3549f33e"`
Sep 04 05:46:30.286 INFO kablam!     Checking slog v1.7.1
Sep 04 05:46:30.287 INFO kablam!     Checking pulse v0.5.3
Sep 04 05:46:31.144 INFO kablam!     Checking specs v0.7.1
Sep 04 05:46:31.268 INFO kablam!     Checking slog-extra v0.1.2
Sep 04 05:46:31.887 INFO kablam!     Checking slog-stream v1.2.1
Sep 04 05:46:32.460 INFO kablam!     Checking slog-term v1.5.0
Sep 04 05:46:34.890 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Sep 04 05:46:36.032 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:36.032 INFO kablam!   --> src/machine.rs:39:17
Sep 04 05:46:36.032 INFO kablam!    |
Sep 04 05:46:36.032 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 04 05:46:36.032 INFO kablam!    |                 ----^^^^^
Sep 04 05:46:36.032 INFO kablam!    |                 |
Sep 04 05:46:36.032 INFO kablam!    |                 help: remove this `mut`
Sep 04 05:46:36.032 INFO kablam!    |
Sep 04 05:46:36.032 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 05:46:36.032 INFO kablam! 
Sep 04 05:46:36.040 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:36.040 INFO kablam!   --> src/machine.rs:73:30
Sep 04 05:46:36.040 INFO kablam!    |
Sep 04 05:46:36.040 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 04 05:46:36.040 INFO kablam!    |                              ----^^^^^
Sep 04 05:46:36.040 INFO kablam!    |                              |
Sep 04 05:46:36.040 INFO kablam!    |                              help: remove this `mut`
Sep 04 05:46:36.041 INFO kablam! 
Sep 04 05:46:36.218 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:36.218 INFO kablam!   --> src/machine.rs:39:17
Sep 04 05:46:36.218 INFO kablam!    |
Sep 04 05:46:36.218 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 04 05:46:36.218 INFO kablam!    |                 ----^^^^^
Sep 04 05:46:36.218 INFO kablam!    |                 |
Sep 04 05:46:36.218 INFO kablam!    |                 help: remove this `mut`
Sep 04 05:46:36.218 INFO kablam!    |
Sep 04 05:46:36.218 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 05:46:36.218 INFO kablam! 
Sep 04 05:46:36.225 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:36.225 INFO kablam!   --> src/machine.rs:73:30
Sep 04 05:46:36.225 INFO kablam!    |
Sep 04 05:46:36.225 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 04 05:46:36.225 INFO kablam!    |                              ----^^^^^
Sep 04 05:46:36.225 INFO kablam!    |                              |
Sep 04 05:46:36.225 INFO kablam!    |                              help: remove this `mut`
Sep 04 05:46:36.225 INFO kablam! 
Sep 04 05:46:37.008 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
Sep 04 05:46:37.013 INFO kablam! su: No module specific data is present
Sep 04 05:46:37.418 INFO running `"docker" "rm" "-f" "0ce65d88b01441ef4af256b9e7184004a05bf63683b48e790b9ce70f3549f33e"`
Sep 04 05:46:37.505 INFO blam! 0ce65d88b01441ef4af256b9e7184004a05bf63683b48e790b9ce70f3549f33e