Sep 20 02:01:07.765 INFO checking fast_io-1.2.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 02:01:07.765 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 02:01:07.765 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 02:01:07.944 INFO blam! d8a58881418e4f7107a384051f3e25d04eb3339494ded1396e74d45811d8f62b
Sep 20 02:01:07.945 INFO running `"docker" "start" "-a" "d8a58881418e4f7107a384051f3e25d04eb3339494ded1396e74d45811d8f62b"`
Sep 20 02:01:08.986 INFO kablam! usermod: no changes
Sep 20 02:01:09.023 INFO kablam!     Checking fast_io v1.2.2 (/source)
Sep 20 02:01:09.349 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:01:09.349 INFO kablam!   --> src/copy_io.rs:17:13
Sep 20 02:01:09.349 INFO kablam!    |
Sep 20 02:01:09.349 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 20 02:01:09.349 INFO kablam!    |             ----^^^^^^
Sep 20 02:01:09.349 INFO kablam!    |             |
Sep 20 02:01:09.349 INFO kablam!    |             help: remove this `mut`
Sep 20 02:01:09.349 INFO kablam!    |
Sep 20 02:01:09.350 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 20 02:01:09.350 INFO kablam! 
Sep 20 02:01:09.350 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:01:09.350 INFO kablam!   --> src/copy_io.rs:38:17
Sep 20 02:01:09.350 INFO kablam!    |
Sep 20 02:01:09.350 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 20 02:01:09.350 INFO kablam!    |                 ----^^^^^^
Sep 20 02:01:09.350 INFO kablam!    |                 |
Sep 20 02:01:09.350 INFO kablam!    |                 help: remove this `mut`
Sep 20 02:01:09.350 INFO kablam! 
Sep 20 02:01:09.443 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:01:09.443 INFO kablam!   --> src/copy_io.rs:17:13
Sep 20 02:01:09.443 INFO kablam!    |
Sep 20 02:01:09.443 INFO kablam! 17 |         let mut buffer = unsafe {
Sep 20 02:01:09.443 INFO kablam!    |             ----^^^^^^
Sep 20 02:01:09.443 INFO kablam!    |             |
Sep 20 02:01:09.443 INFO kablam!    |             help: remove this `mut`
Sep 20 02:01:09.443 INFO kablam!    |
Sep 20 02:01:09.443 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 20 02:01:09.443 INFO kablam! 
Sep 20 02:01:09.445 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:01:09.445 INFO kablam!   --> src/copy_io.rs:38:17
Sep 20 02:01:09.445 INFO kablam!    |
Sep 20 02:01:09.445 INFO kablam! 38 |             let mut buffer = slice::from_raw_parts_mut(
Sep 20 02:01:09.445 INFO kablam!    |                 ----^^^^^^
Sep 20 02:01:09.445 INFO kablam!    |                 |
Sep 20 02:01:09.445 INFO kablam!    |                 help: remove this `mut`
Sep 20 02:01:09.445 INFO kablam! 
Sep 20 02:01:09.475 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Sep 20 02:01:09.477 INFO kablam! su: No module specific data is present
Sep 20 02:01:09.939 INFO running `"docker" "rm" "-f" "d8a58881418e4f7107a384051f3e25d04eb3339494ded1396e74d45811d8f62b"`
Sep 20 02:01:10.013 INFO blam! d8a58881418e4f7107a384051f3e25d04eb3339494ded1396e74d45811d8f62b