Aug 30 08:08:54.547 INFO checking peggler-0.1.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 08:08:54.547 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 08:08:54.547 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-1/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 08:08:54.780 INFO blam! cf5c82c115b1d609b696a863297f9be1e2e129c5f4685cac1a39cec5dfece6e4
Aug 30 08:08:54.781 INFO running `"docker" "start" "-a" "cf5c82c115b1d609b696a863297f9be1e2e129c5f4685cac1a39cec5dfece6e4"`
Aug 30 08:08:55.560 INFO kablam!     Checking peggler v0.1.0 (file:///source)
Aug 30 08:08:56.978 INFO kablam! warning: variable does not need to be mutable
Aug 30 08:08:56.978 INFO kablam!  --> tests/arithmetic.rs:9:9
Aug 30 08:08:56.978 INFO kablam!   |
Aug 30 08:08:56.978 INFO kablam! 9 |     let mut end : usize;
Aug 30 08:08:56.978 INFO kablam!   |         ----^^^
Aug 30 08:08:56.978 INFO kablam!   |         |
Aug 30 08:08:56.979 INFO kablam!   |         help: remove this `mut`
Aug 30 08:08:56.979 INFO kablam!   |
Aug 30 08:08:56.979 INFO kablam!   = note: #[warn(unused_mut)] on by default
Aug 30 08:08:56.979 INFO kablam! 
Aug 30 08:08:58.223 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
Aug 30 08:08:58.226 INFO kablam! su: No module specific data is present
Aug 30 08:08:58.618 INFO running `"docker" "rm" "-f" "cf5c82c115b1d609b696a863297f9be1e2e129c5f4685cac1a39cec5dfece6e4"`
Aug 30 08:08:58.731 INFO blam! cf5c82c115b1d609b696a863297f9be1e2e129c5f4685cac1a39cec5dfece6e4