Dec 19 22:00:26.824 INFO checking SDRust/png-fabuloso against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 22:00:26.824 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/SDRust/png-fabuloso:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:00:27.302 INFO [stdout] e7dcd364f4d02028522cb531922c8b917ab4a059a8901b57176541b20f8fd4a9
Dec 19 22:00:27.305 INFO running `"docker" "start" "-a" "e7dcd364f4d02028522cb531922c8b917ab4a059a8901b57176541b20f8fd4a9"`
Dec 19 22:00:29.704 INFO [stderr]    Compiling miniz-sys v0.1.7
Dec 19 22:00:29.704 INFO [stderr]     Checking crc v1.3.0
Dec 19 22:00:31.700 INFO [stderr]     Checking flate2 v0.2.14
Dec 19 22:00:32.417 INFO [stderr]     Checking pngstogram v0.1.0 (/opt/crater/workdir)
Dec 19 22:00:32.932 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:00:32.932 INFO [stderr]   --> src/main.rs:86:13
Dec 19 22:00:32.932 INFO [stderr]    |
Dec 19 22:00:32.932 INFO [stderr] 86 |         let mut data_borrow : &mut [u8] = big_data_buf.borrow_mut();
Dec 19 22:00:32.932 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 19 22:00:32.932 INFO [stderr]    |             |
Dec 19 22:00:32.932 INFO [stderr]    |             help: remove this `mut`
Dec 19 22:00:32.932 INFO [stderr]    |
Dec 19 22:00:32.932 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 22:00:32.932 INFO [stderr] 
Dec 19 22:00:32.936 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:00:32.936 INFO [stderr]   --> src/main.rs:86:13
Dec 19 22:00:32.936 INFO [stderr]    |
Dec 19 22:00:32.936 INFO [stderr] 86 |         let mut data_borrow : &mut [u8] = big_data_buf.borrow_mut();
Dec 19 22:00:32.936 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 19 22:00:32.936 INFO [stderr]    |             |
Dec 19 22:00:32.936 INFO [stderr]    |             help: remove this `mut`
Dec 19 22:00:32.936 INFO [stderr]    |
Dec 19 22:00:32.936 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 22:00:32.936 INFO [stderr] 
Dec 19 22:00:33.004 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
Dec 19 22:00:33.746 INFO running `"docker" "inspect" "e7dcd364f4d02028522cb531922c8b917ab4a059a8901b57176541b20f8fd4a9"`
Dec 19 22:00:34.040 INFO running `"docker" "rm" "-f" "e7dcd364f4d02028522cb531922c8b917ab4a059a8901b57176541b20f8fd4a9"`
Dec 19 22:00:34.472 INFO [stdout] e7dcd364f4d02028522cb531922c8b917ab4a059a8901b57176541b20f8fd4a9