Sep 21 10:37:08.846 INFO checking fast_io-1.2.2 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 10:37:08.846 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 10:37:08.846 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 10:37:09.014 INFO blam! 4bc99a30deb3e9f83e41e0394ff9c8fc60ca8dabfaa4741f655ed23b0c4ee818
Sep 21 10:37:09.015 INFO running `"docker" "start" "-a" "4bc99a30deb3e9f83e41e0394ff9c8fc60ca8dabfaa4741f655ed23b0c4ee818"`
Sep 21 10:37:09.876 INFO kablam! usermod: no changes
Sep 21 10:37:09.914 INFO kablam!     Checking fast_io v1.2.2 (/source)
Sep 21 10:37:10.237 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:37:10.237 INFO kablam!   --> src/copy_io.rs:17:13
Sep 21 10:37:10.237 INFO kablam!    |
Sep 21 10:37:10.237 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 21 10:37:10.237 INFO kablam!    |             ----^^^^^^
Sep 21 10:37:10.237 INFO kablam!    |             |
Sep 21 10:37:10.237 INFO kablam!    |             help: remove this `mut`
Sep 21 10:37:10.237 INFO kablam!    |
Sep 21 10:37:10.237 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 10:37:10.237 INFO kablam! 
Sep 21 10:37:10.237 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:37:10.237 INFO kablam!   --> src/copy_io.rs:38:17
Sep 21 10:37:10.237 INFO kablam!    |
Sep 21 10:37:10.237 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 21 10:37:10.237 INFO kablam!    |                 ----^^^^^^
Sep 21 10:37:10.237 INFO kablam!    |                 |
Sep 21 10:37:10.237 INFO kablam!    |                 help: remove this `mut`
Sep 21 10:37:10.238 INFO kablam! 
Sep 21 10:37:10.433 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:37:10.433 INFO kablam!   --> src/copy_io.rs:17:13
Sep 21 10:37:10.433 INFO kablam!    |
Sep 21 10:37:10.433 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 21 10:37:10.433 INFO kablam!    |             ----^^^^^^
Sep 21 10:37:10.433 INFO kablam!    |             |
Sep 21 10:37:10.433 INFO kablam!    |             help: remove this `mut`
Sep 21 10:37:10.433 INFO kablam!    |
Sep 21 10:37:10.433 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 10:37:10.434 INFO kablam! 
Sep 21 10:37:10.435 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:37:10.435 INFO kablam!   --> src/copy_io.rs:38:17
Sep 21 10:37:10.435 INFO kablam!    |
Sep 21 10:37:10.435 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 21 10:37:10.435 INFO kablam!    |                 ----^^^^^^
Sep 21 10:37:10.435 INFO kablam!    |                 |
Sep 21 10:37:10.435 INFO kablam!    |                 help: remove this `mut`
Sep 21 10:37:10.435 INFO kablam! 
Sep 21 10:37:10.456 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Sep 21 10:37:10.458 INFO kablam! su: No module specific data is present
Sep 21 10:37:11.172 INFO running `"docker" "rm" "-f" "4bc99a30deb3e9f83e41e0394ff9c8fc60ca8dabfaa4741f655ed23b0c4ee818"`
Sep 21 10:37:11.263 INFO blam! 4bc99a30deb3e9f83e41e0394ff9c8fc60ca8dabfaa4741f655ed23b0c4ee818