Aug 31 13:04:03.969 INFO checking specs_engine-0.0.3 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 13:04:03.969 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 13:04:03.969 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 13:04:04.218 INFO blam! 886aea3ce2064e18aa4d9a555c3353dffc4dc761c49ac26eb6f5ab5d7bbc3089
Aug 31 13:04:04.221 INFO running `"docker" "start" "-a" "886aea3ce2064e18aa4d9a555c3353dffc4dc761c49ac26eb6f5ab5d7bbc3089"`
Aug 31 13:04:04.936 INFO kablam!     Checking slog v1.7.1
Aug 31 13:04:04.937 INFO kablam!     Checking specs v0.7.1
Aug 31 13:04:05.954 INFO kablam!     Checking slog-extra v0.1.2
Aug 31 13:04:06.789 INFO kablam!     Checking slog-stream v1.2.1
Aug 31 13:04:07.511 INFO kablam!     Checking slog-term v1.5.0
Aug 31 13:04:09.681 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Aug 31 13:04:10.549 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:04:10.549 INFO kablam!   --> src/machine.rs:39:17
Aug 31 13:04:10.549 INFO kablam!    |
Aug 31 13:04:10.549 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 31 13:04:10.549 INFO kablam!    |                 ----^^^^^
Aug 31 13:04:10.549 INFO kablam!    |                 |
Aug 31 13:04:10.549 INFO kablam!    |                 help: remove this `mut`
Aug 31 13:04:10.549 INFO kablam!    |
Aug 31 13:04:10.550 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 13:04:10.550 INFO kablam! 
Aug 31 13:04:10.554 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:04:10.554 INFO kablam!   --> src/machine.rs:73:30
Aug 31 13:04:10.554 INFO kablam!    |
Aug 31 13:04:10.554 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 31 13:04:10.554 INFO kablam!    |                              ----^^^^^
Aug 31 13:04:10.554 INFO kablam!    |                              |
Aug 31 13:04:10.554 INFO kablam!    |                              help: remove this `mut`
Aug 31 13:04:10.554 INFO kablam! 
Aug 31 13:04:11.335 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:04:11.335 INFO kablam!   --> src/machine.rs:39:17
Aug 31 13:04:11.335 INFO kablam!    |
Aug 31 13:04:11.335 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 31 13:04:11.335 INFO kablam!    |                 ----^^^^^
Aug 31 13:04:11.335 INFO kablam!    |                 |
Aug 31 13:04:11.335 INFO kablam!    |                 help: remove this `mut`
Aug 31 13:04:11.335 INFO kablam!    |
Aug 31 13:04:11.336 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 13:04:11.336 INFO kablam! 
Aug 31 13:04:11.341 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:04:11.341 INFO kablam!   --> src/machine.rs:73:30
Aug 31 13:04:11.341 INFO kablam!    |
Aug 31 13:04:11.341 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 31 13:04:11.341 INFO kablam!    |                              ----^^^^^
Aug 31 13:04:11.341 INFO kablam!    |                              |
Aug 31 13:04:11.341 INFO kablam!    |                              help: remove this `mut`
Aug 31 13:04:11.341 INFO kablam! 
Aug 31 13:04:11.397 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
Aug 31 13:04:11.403 INFO kablam! su: No module specific data is present
Aug 31 13:04:11.748 INFO running `"docker" "rm" "-f" "886aea3ce2064e18aa4d9a555c3353dffc4dc761c49ac26eb6f5ab5d7bbc3089"`
Aug 31 13:04:11.893 INFO blam! 886aea3ce2064e18aa4d9a555c3353dffc4dc761c49ac26eb6f5ab5d7bbc3089