Dec 05 00:15:22.850 INFO checking SDRust/png-fabuloso against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 00:15:22.850 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 00:15:23.304 INFO [stdout] acb712ba771b4ddbad46e5e1ed230bb2794e00e3eb4269790b2c8e67e78cd692
Dec 05 00:15:23.306 INFO running `"docker" "start" "-a" "acb712ba771b4ddbad46e5e1ed230bb2794e00e3eb4269790b2c8e67e78cd692"`
Dec 05 00:15:24.895 INFO [stderr] usermod: no changes
Dec 05 00:15:25.013 INFO [stderr]    Compiling miniz-sys v0.1.7
Dec 05 00:15:25.013 INFO [stderr]     Checking crc v1.3.0
Dec 05 00:15:27.203 INFO [stderr]     Checking flate2 v0.2.14
Dec 05 00:15:27.987 INFO [stderr]     Checking pngstogram v0.1.0 (/source)
Dec 05 00:15:29.371 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:15:29.371 INFO [stderr]   --> src/main.rs:86:13
Dec 05 00:15:29.371 INFO [stderr]    |
Dec 05 00:15:29.371 INFO [stderr] 86 |         let mut data_borrow : &mut [u8] = big_data_buf.borrow_mut();
Dec 05 00:15:29.371 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 05 00:15:29.371 INFO [stderr]    |             |
Dec 05 00:15:29.371 INFO [stderr]    |             help: remove this `mut`
Dec 05 00:15:29.371 INFO [stderr]    |
Dec 05 00:15:29.371 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:15:29.371 INFO [stderr] 
Dec 05 00:15:29.564 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:15:29.564 INFO [stderr]   --> src/main.rs:86:13
Dec 05 00:15:29.565 INFO [stderr]    |
Dec 05 00:15:29.565 INFO [stderr] 86 |         let mut data_borrow : &mut [u8] = big_data_buf.borrow_mut();
Dec 05 00:15:29.565 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 05 00:15:29.565 INFO [stderr]    |             |
Dec 05 00:15:29.566 INFO [stderr]    |             help: remove this `mut`
Dec 05 00:15:29.566 INFO [stderr]    |
Dec 05 00:15:29.566 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:15:29.566 INFO [stderr] 
Dec 05 00:15:29.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
Dec 05 00:15:29.595 INFO [stderr] su: No module specific data is present
Dec 05 00:15:30.747 INFO running `"docker" "inspect" "acb712ba771b4ddbad46e5e1ed230bb2794e00e3eb4269790b2c8e67e78cd692"`
Dec 05 00:15:31.074 INFO running `"docker" "rm" "-f" "acb712ba771b4ddbad46e5e1ed230bb2794e00e3eb4269790b2c8e67e78cd692"`
Dec 05 00:15:31.487 INFO [stdout] acb712ba771b4ddbad46e5e1ed230bb2794e00e3eb4269790b2c8e67e78cd692