Jul 12 10:57:01.920 INFO checking difflib-0.3.1 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 12 10:57:01.920 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 10:57:01.920 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 10:57:01.920 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-1/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 10:57:02.219 INFO blam! 97e80b6a9cdc0b9b107a41359c919d8cbae5341482260b2d2b128f5f62940a5f
Jul 12 10:57:02.221 INFO running `"docker" "start" "-a" "97e80b6a9cdc0b9b107a41359c919d8cbae5341482260b2d2b128f5f62940a5f"`
Jul 12 10:57:03.191 INFO kablam!     Checking difflib v0.3.1 (file:///source)
Jul 12 10:57:05.187 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:57:05.187 INFO kablam!    --> src/sequencematcher.rs:339:17
Jul 12 10:57:05.187 INFO kablam!     |
Jul 12 10:57:05.187 INFO kablam! 339 |             let mut opcode = codes.first_mut().unwrap();
Jul 12 10:57:05.187 INFO kablam!     |                 ----^^^^^^
Jul 12 10:57:05.187 INFO kablam!     |                 |
Jul 12 10:57:05.187 INFO kablam!     |                 help: remove this `mut`
Jul 12 10:57:05.187 INFO kablam!     |
Jul 12 10:57:05.187 INFO kablam!     = note: #[warn(unused_mut)] on by default
Jul 12 10:57:05.187 INFO kablam! 
Jul 12 10:57:05.187 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:57:05.187 INFO kablam!    --> src/sequencematcher.rs:344:17
Jul 12 10:57:05.187 INFO kablam!     |
Jul 12 10:57:05.187 INFO kablam! 344 |             let mut opcode = codes.last_mut().unwrap();
Jul 12 10:57:05.187 INFO kablam!     |                 ----^^^^^^
Jul 12 10:57:05.187 INFO kablam!     |                 |
Jul 12 10:57:05.187 INFO kablam!     |                 help: remove this `mut`
Jul 12 10:57:05.187 INFO kablam! 
Jul 12 10:57:05.320 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:57:05.320 INFO kablam!    --> src/sequencematcher.rs:339:17
Jul 12 10:57:05.320 INFO kablam!     |
Jul 12 10:57:05.320 INFO kablam! 339 |             let mut opcode = codes.first_mut().unwrap();
Jul 12 10:57:05.321 INFO kablam!     |                 ----^^^^^^
Jul 12 10:57:05.321 INFO kablam!     |                 |
Jul 12 10:57:05.321 INFO kablam!     |                 help: remove this `mut`
Jul 12 10:57:05.321 INFO kablam!     |
Jul 12 10:57:05.321 INFO kablam!     = note: #[warn(unused_mut)] on by default
Jul 12 10:57:05.321 INFO kablam! 
Jul 12 10:57:05.322 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:57:05.322 INFO kablam!    --> src/sequencematcher.rs:344:17
Jul 12 10:57:05.322 INFO kablam!     |
Jul 12 10:57:05.322 INFO kablam! 344 |             let mut opcode = codes.last_mut().unwrap();
Jul 12 10:57:05.322 INFO kablam!     |                 ----^^^^^^
Jul 12 10:57:05.322 INFO kablam!     |                 |
Jul 12 10:57:05.322 INFO kablam!     |                 help: remove this `mut`
Jul 12 10:57:05.322 INFO kablam! 
Jul 12 10:57:07.088 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.94s
Jul 12 10:57:07.096 INFO kablam! su: No module specific data is present
Jul 12 10:57:07.842 INFO running `"docker" "rm" "-f" "97e80b6a9cdc0b9b107a41359c919d8cbae5341482260b2d2b128f5f62940a5f"`
Jul 12 10:57:08.017 INFO blam! 97e80b6a9cdc0b9b107a41359c919d8cbae5341482260b2d2b128f5f62940a5f