Aug 30 08:08:53.035 INFO checking peggler-0.1.0 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 08:08:53.035 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 08:08:53.035 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-3/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 08:08:53.301 INFO blam! 0604a46ac04b4b54e1bd946278302780b26dad5cb323c0e0a55ecddf0f363cc7
Aug 30 08:08:53.304 INFO running `"docker" "start" "-a" "0604a46ac04b4b54e1bd946278302780b26dad5cb323c0e0a55ecddf0f363cc7"`
Aug 30 08:08:54.177 INFO kablam!     Checking peggler v0.1.0 (file:///source)
Aug 30 08:08:55.796 INFO kablam! warning: variable does not need to be mutable
Aug 30 08:08:55.796 INFO kablam!  --> tests/arithmetic.rs:9:9
Aug 30 08:08:55.796 INFO kablam!   |
Aug 30 08:08:55.796 INFO kablam! 9 |     let mut end : usize;
Aug 30 08:08:55.796 INFO kablam!   |         ----^^^
Aug 30 08:08:55.796 INFO kablam!   |         |
Aug 30 08:08:55.796 INFO kablam!   |         help: remove this `mut`
Aug 30 08:08:55.796 INFO kablam!   |
Aug 30 08:08:55.796 INFO kablam!   = note: #[warn(unused_mut)] on by default
Aug 30 08:08:55.796 INFO kablam! 
Aug 30 08:08:56.926 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
Aug 30 08:08:56.930 INFO kablam! su: No module specific data is present
Aug 30 08:08:57.316 INFO running `"docker" "rm" "-f" "0604a46ac04b4b54e1bd946278302780b26dad5cb323c0e0a55ecddf0f363cc7"`
Aug 30 08:08:57.397 INFO blam! 0604a46ac04b4b54e1bd946278302780b26dad5cb323c0e0a55ecddf0f363cc7