Sep 02 05:05:38.254 INFO checking peggler-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 05:05:38.254 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 05:05:38.254 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 05:05:38.505 INFO blam! 4fa58892d09ca04f4660c7768e1f4de88103895ba159b4d194aea234f8c58aa0
Sep 02 05:05:38.508 INFO running `"docker" "start" "-a" "4fa58892d09ca04f4660c7768e1f4de88103895ba159b4d194aea234f8c58aa0"`
Sep 02 05:05:39.391 INFO kablam!     Checking peggler v0.1.0 (file:///source)
Sep 02 05:05:41.206 INFO kablam! warning: variable does not need to be mutable
Sep 02 05:05:41.206 INFO kablam!  --> tests/arithmetic.rs:9:9
Sep 02 05:05:41.206 INFO kablam!   |
Sep 02 05:05:41.206 INFO kablam! 9 |     let mut end : usize;
Sep 02 05:05:41.206 INFO kablam!   |         ----^^^
Sep 02 05:05:41.206 INFO kablam!   |         |
Sep 02 05:05:41.206 INFO kablam!   |         help: remove this `mut`
Sep 02 05:05:41.206 INFO kablam!   |
Sep 02 05:05:41.206 INFO kablam!   = note: #[warn(unused_mut)] on by default
Sep 02 05:05:41.206 INFO kablam! 
Sep 02 05:05:42.313 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
Sep 02 05:05:42.317 INFO kablam! su: No module specific data is present
Sep 02 05:05:42.756 INFO running `"docker" "rm" "-f" "4fa58892d09ca04f4660c7768e1f4de88103895ba159b4d194aea234f8c58aa0"`
Sep 02 05:05:42.856 INFO blam! 4fa58892d09ca04f4660c7768e1f4de88103895ba159b4d194aea234f8c58aa0