Nov 30 23:07:38.517 INFO checking fast_io-1.2.2 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 23:07:38.517 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 23:07:38.902 INFO [stdout] 1b9f1342ad082e8b5b6e29f9d586abf3d53690864de3e578a6316e3727b3404f
Nov 30 23:07:38.910 INFO running `"docker" "start" "-a" "1b9f1342ad082e8b5b6e29f9d586abf3d53690864de3e578a6316e3727b3404f"`
Nov 30 23:07:40.102 INFO [stderr] usermod: no changes
Nov 30 23:07:40.169 INFO [stderr]     Checking fast_io v1.2.2 (/source)
Nov 30 23:07:41.055 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.055 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 30 23:07:41.055 INFO [stderr]    |
Nov 30 23:07:41.055 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 30 23:07:41.055 INFO [stderr]    |             ----^^^^^^
Nov 30 23:07:41.055 INFO [stderr]    |             |
Nov 30 23:07:41.055 INFO [stderr]    |             help: remove this `mut`
Nov 30 23:07:41.055 INFO [stderr]    |
Nov 30 23:07:41.055 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 23:07:41.055 INFO [stderr] 
Nov 30 23:07:41.055 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.055 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 30 23:07:41.055 INFO [stderr]    |
Nov 30 23:07:41.055 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 30 23:07:41.055 INFO [stderr]    |                 ----^^^^^^
Nov 30 23:07:41.055 INFO [stderr]    |                 |
Nov 30 23:07:41.055 INFO [stderr]    |                 help: remove this `mut`
Nov 30 23:07:41.055 INFO [stderr] 
Nov 30 23:07:41.628 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.628 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 30 23:07:41.628 INFO [stderr]    |
Nov 30 23:07:41.628 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 30 23:07:41.628 INFO [stderr]    |             ----^^^^^^
Nov 30 23:07:41.628 INFO [stderr]    |             |
Nov 30 23:07:41.628 INFO [stderr]    |             help: remove this `mut`
Nov 30 23:07:41.628 INFO [stderr]    |
Nov 30 23:07:41.628 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 23:07:41.628 INFO [stderr] 
Nov 30 23:07:41.628 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.628 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 30 23:07:41.628 INFO [stderr]    |
Nov 30 23:07:41.628 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 30 23:07:41.628 INFO [stderr]    |                 ----^^^^^^
Nov 30 23:07:41.628 INFO [stderr]    |                 |
Nov 30 23:07:41.629 INFO [stderr]    |                 help: remove this `mut`
Nov 30 23:07:41.629 INFO [stderr] 
Nov 30 23:07:41.701 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Nov 30 23:07:41.701 INFO [stderr] su: No module specific data is present
Nov 30 23:07:42.187 INFO running `"docker" "inspect" "1b9f1342ad082e8b5b6e29f9d586abf3d53690864de3e578a6316e3727b3404f"`
Nov 30 23:07:42.426 INFO running `"docker" "rm" "-f" "1b9f1342ad082e8b5b6e29f9d586abf3d53690864de3e578a6316e3727b3404f"`
Nov 30 23:07:42.707 INFO [stdout] 1b9f1342ad082e8b5b6e29f9d586abf3d53690864de3e578a6316e3727b3404f