Sep 02 05:05:37.637 INFO checking peggler-0.1.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 05:05:37.637 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 05:05:37.637 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 05:05:37.874 INFO blam! 6ccf91e9ce1e3d5319529a6058c5fa236a9abfd39a5e9dc762975e53d8ec90fa
Sep 02 05:05:37.876 INFO running `"docker" "start" "-a" "6ccf91e9ce1e3d5319529a6058c5fa236a9abfd39a5e9dc762975e53d8ec90fa"`
Sep 02 05:05:38.856 INFO kablam!     Checking peggler v0.1.0 (file:///source)
Sep 02 05:05:40.847 INFO kablam! warning: variable does not need to be mutable
Sep 02 05:05:40.847 INFO kablam!  --> tests/arithmetic.rs:9:9
Sep 02 05:05:40.847 INFO kablam!   |
Sep 02 05:05:40.847 INFO kablam! 9 |     let mut end : usize;
Sep 02 05:05:40.847 INFO kablam!   |         ----^^^
Sep 02 05:05:40.847 INFO kablam!   |         |
Sep 02 05:05:40.847 INFO kablam!   |         help: remove this `mut`
Sep 02 05:05:40.854 INFO kablam!   |
Sep 02 05:05:40.855 INFO kablam!   = note: #[warn(unused_mut)] on by default
Sep 02 05:05:40.857 INFO kablam! 
Sep 02 05:05:41.825 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
Sep 02 05:05:41.829 INFO kablam! su: No module specific data is present
Sep 02 05:05:42.167 INFO running `"docker" "rm" "-f" "6ccf91e9ce1e3d5319529a6058c5fa236a9abfd39a5e9dc762975e53d8ec90fa"`
Sep 02 05:05:42.266 INFO blam! 6ccf91e9ce1e3d5319529a6058c5fa236a9abfd39a5e9dc762975e53d8ec90fa