Dec 17 22:03:58.733 INFO checking joshuaholmes/rustboy9001 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:03:58.733 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/joshuaholmes/rustboy9001:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:03:59.404 INFO [stdout] f6f9ac03dc08919018f05673f062fe7998e459baa71f9d257713f89b49c5e2d2
Dec 17 22:03:59.410 INFO running `"docker" "start" "-a" "f6f9ac03dc08919018f05673f062fe7998e459baa71f9d257713f89b49c5e2d2"`
Dec 17 22:04:01.148 INFO [stderr]     Checking rustboy9001 v0.1.0 (/opt/crater/workdir)
Dec 17 22:04:01.416 INFO [stderr] warning: unused import: `std::str`
Dec 17 22:04:01.416 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:04:01.416 INFO [stderr]   |
Dec 17 22:04:01.416 INFO [stderr] 7 | use std::str;
Dec 17 22:04:01.416 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:04:01.416 INFO [stderr]   |
Dec 17 22:04:01.416 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:04:01.416 INFO [stderr] 
Dec 17 22:04:01.520 INFO [stderr] warning: unused import: `std::str`
Dec 17 22:04:01.520 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:04:01.520 INFO [stderr]   |
Dec 17 22:04:01.520 INFO [stderr] 7 | use std::str;
Dec 17 22:04:01.520 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:04:01.520 INFO [stderr]   |
Dec 17 22:04:01.520 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:04:01.520 INFO [stderr] 
Dec 17 22:04:01.648 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:04:01.648 INFO [stderr]  --> src/util.rs:9:31
Dec 17 22:04:01.648 INFO [stderr]   |
Dec 17 22:04:01.648 INFO [stderr] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
Dec 17 22:04:01.648 INFO [stderr]   |                               ----^^^
Dec 17 22:04:01.648 INFO [stderr]   |                               |
Dec 17 22:04:01.648 INFO [stderr]   |                               help: remove this `mut`
Dec 17 22:04:01.648 INFO [stderr]   |
Dec 17 22:04:01.648 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:04:01.648 INFO [stderr] 
Dec 17 22:04:01.701 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:04:01.701 INFO [stderr]  --> src/util.rs:9:31
Dec 17 22:04:01.701 INFO [stderr]   |
Dec 17 22:04:01.701 INFO [stderr] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
Dec 17 22:04:01.704 INFO [stderr]   |                               ----^^^
Dec 17 22:04:01.704 INFO [stderr]   |                               |
Dec 17 22:04:01.704 INFO [stderr]   |                               help: remove this `mut`
Dec 17 22:04:01.704 INFO [stderr]   |
Dec 17 22:04:01.704 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:04:01.704 INFO [stderr] 
Dec 17 22:04:01.769 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 17 22:04:02.991 INFO running `"docker" "inspect" "f6f9ac03dc08919018f05673f062fe7998e459baa71f9d257713f89b49c5e2d2"`
Dec 17 22:04:03.316 INFO running `"docker" "rm" "-f" "f6f9ac03dc08919018f05673f062fe7998e459baa71f9d257713f89b49c5e2d2"`
Dec 17 22:04:03.668 INFO [stdout] f6f9ac03dc08919018f05673f062fe7998e459baa71f9d257713f89b49c5e2d2