Nov 30 23:07:38.501 INFO checking fast_io-1.2.2 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 23:07:38.501 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 23:07:38.844 INFO [stdout] 2a39ac4537c65d4861a7b1a45e14e708db4ea6f7b860695717a399e0892e0d18
Nov 30 23:07:38.852 INFO running `"docker" "start" "-a" "2a39ac4537c65d4861a7b1a45e14e708db4ea6f7b860695717a399e0892e0d18"`
Nov 30 23:07:39.979 INFO [stderr] usermod: no changes
Nov 30 23:07:40.041 INFO [stderr]     Checking fast_io v1.2.2 (/source)
Nov 30 23:07:40.892 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:40.892 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 30 23:07:40.892 INFO [stderr]    |
Nov 30 23:07:40.892 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 30 23:07:40.892 INFO [stderr]    |             ----^^^^^^
Nov 30 23:07:40.892 INFO [stderr]    |             |
Nov 30 23:07:40.892 INFO [stderr]    |             help: remove this `mut`
Nov 30 23:07:40.892 INFO [stderr]    |
Nov 30 23:07:40.892 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 23:07:40.892 INFO [stderr] 
Nov 30 23:07:40.900 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:40.900 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 30 23:07:40.900 INFO [stderr]    |
Nov 30 23:07:40.900 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 30 23:07:40.900 INFO [stderr]    |                 ----^^^^^^
Nov 30 23:07:40.900 INFO [stderr]    |                 |
Nov 30 23:07:40.900 INFO [stderr]    |                 help: remove this `mut`
Nov 30 23:07:40.900 INFO [stderr] 
Nov 30 23:07:41.257 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.257 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 30 23:07:41.257 INFO [stderr]    |
Nov 30 23:07:41.257 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 30 23:07:41.257 INFO [stderr]    |             ----^^^^^^
Nov 30 23:07:41.257 INFO [stderr]    |             |
Nov 30 23:07:41.257 INFO [stderr]    |             help: remove this `mut`
Nov 30 23:07:41.257 INFO [stderr]    |
Nov 30 23:07:41.258 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 23:07:41.258 INFO [stderr] 
Nov 30 23:07:41.260 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:07:41.260 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 30 23:07:41.260 INFO [stderr]    |
Nov 30 23:07:41.260 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 30 23:07:41.260 INFO [stderr]    |                 ----^^^^^^
Nov 30 23:07:41.260 INFO [stderr]    |                 |
Nov 30 23:07:41.260 INFO [stderr]    |                 help: remove this `mut`
Nov 30 23:07:41.260 INFO [stderr] 
Nov 30 23:07:41.313 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Nov 30 23:07:41.314 INFO [stderr] su: No module specific data is present
Nov 30 23:07:41.911 INFO running `"docker" "inspect" "2a39ac4537c65d4861a7b1a45e14e708db4ea6f7b860695717a399e0892e0d18"`
Nov 30 23:07:42.137 INFO running `"docker" "rm" "-f" "2a39ac4537c65d4861a7b1a45e14e708db4ea6f7b860695717a399e0892e0d18"`
Nov 30 23:07:42.425 INFO [stdout] 2a39ac4537c65d4861a7b1a45e14e708db4ea6f7b860695717a399e0892e0d18