Aug 31 19:01:29.931 INFO checking peggler-0.1.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 19:01:29.931 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 19:01:29.931 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/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 19:01:30.174 INFO blam! 29de0c977929cc84377ff47715d9c4d3dedb23604ee9c1efbf791518b6fb19fc
Aug 31 19:01:30.176 INFO running `"docker" "start" "-a" "29de0c977929cc84377ff47715d9c4d3dedb23604ee9c1efbf791518b6fb19fc"`
Aug 31 19:01:31.070 INFO kablam!     Checking peggler v0.1.0 (file:///source)
Aug 31 19:01:33.323 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:01:33.323 INFO kablam!  --> tests/arithmetic.rs:9:9
Aug 31 19:01:33.323 INFO kablam!   |
Aug 31 19:01:33.323 INFO kablam! 9 |     let mut end : usize;
Aug 31 19:01:33.323 INFO kablam!   |         ----^^^
Aug 31 19:01:33.323 INFO kablam!   |         |
Aug 31 19:01:33.323 INFO kablam!   |         help: remove this `mut`
Aug 31 19:01:33.323 INFO kablam!   |
Aug 31 19:01:33.323 INFO kablam!   = note: #[warn(unused_mut)] on by default
Aug 31 19:01:33.323 INFO kablam! 
Aug 31 19:01:34.293 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.24s
Aug 31 19:01:34.297 INFO kablam! su: No module specific data is present
Aug 31 19:01:34.770 INFO running `"docker" "rm" "-f" "29de0c977929cc84377ff47715d9c4d3dedb23604ee9c1efbf791518b6fb19fc"`
Aug 31 19:01:34.866 INFO blam! 29de0c977929cc84377ff47715d9c4d3dedb23604ee9c1efbf791518b6fb19fc