Sep 18 00:54:33.141 INFO checking fast_io-1.2.2 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 18 00:54:33.141 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 18 00:54:33.141 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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=1000" "-e" "CMD=cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 00:54:33.338 INFO blam! f81da9908d09f25c1f0c3308170c24ad4b0f6a5f2cfd01beff419c67bd4d5bf4
Sep 18 00:54:33.339 INFO running `"docker" "start" "-a" "f81da9908d09f25c1f0c3308170c24ad4b0f6a5f2cfd01beff419c67bd4d5bf4"`
Sep 18 00:54:34.128 INFO kablam! usermod: no changes
Sep 18 00:54:34.152 INFO kablam!     Checking fast_io v1.2.2 (/source)
Sep 18 00:54:34.451 INFO kablam! warning: variable does not need to be mutable
Sep 18 00:54:34.451 INFO kablam!   --> src/copy_io.rs:17:13
Sep 18 00:54:34.451 INFO kablam!    |
Sep 18 00:54:34.451 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 18 00:54:34.451 INFO kablam!    |             ----^^^^^^
Sep 18 00:54:34.451 INFO kablam!    |             |
Sep 18 00:54:34.451 INFO kablam!    |             help: remove this `mut`
Sep 18 00:54:34.451 INFO kablam!    |
Sep 18 00:54:34.451 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 18 00:54:34.451 INFO kablam! 
Sep 18 00:54:34.453 INFO kablam! warning: variable does not need to be mutable
Sep 18 00:54:34.453 INFO kablam!   --> src/copy_io.rs:38:17
Sep 18 00:54:34.453 INFO kablam!    |
Sep 18 00:54:34.453 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 18 00:54:34.453 INFO kablam!    |                 ----^^^^^^
Sep 18 00:54:34.453 INFO kablam!    |                 |
Sep 18 00:54:34.453 INFO kablam!    |                 help: remove this `mut`
Sep 18 00:54:34.453 INFO kablam! 
Sep 18 00:54:34.578 INFO kablam! warning: variable does not need to be mutable
Sep 18 00:54:34.578 INFO kablam!   --> src/copy_io.rs:17:13
Sep 18 00:54:34.578 INFO kablam!    |
Sep 18 00:54:34.578 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 18 00:54:34.578 INFO kablam!    |             ----^^^^^^
Sep 18 00:54:34.578 INFO kablam!    |             |
Sep 18 00:54:34.578 INFO kablam!    |             help: remove this `mut`
Sep 18 00:54:34.578 INFO kablam!    |
Sep 18 00:54:34.578 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 18 00:54:34.578 INFO kablam! 
Sep 18 00:54:34.580 INFO kablam! warning: variable does not need to be mutable
Sep 18 00:54:34.580 INFO kablam!   --> src/copy_io.rs:38:17
Sep 18 00:54:34.580 INFO kablam!    |
Sep 18 00:54:34.580 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 18 00:54:34.580 INFO kablam!    |                 ----^^^^^^
Sep 18 00:54:34.580 INFO kablam!    |                 |
Sep 18 00:54:34.580 INFO kablam!    |                 help: remove this `mut`
Sep 18 00:54:34.581 INFO kablam! 
Sep 18 00:54:34.623 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Sep 18 00:54:34.623 INFO kablam! su: No module specific data is present
Sep 18 00:54:35.131 INFO running `"docker" "rm" "-f" "f81da9908d09f25c1f0c3308170c24ad4b0f6a5f2cfd01beff419c67bd4d5bf4"`
Sep 18 00:54:35.188 INFO blam! f81da9908d09f25c1f0c3308170c24ad4b0f6a5f2cfd01beff419c67bd4d5bf4