Dec 17 22:04:00.255 INFO checking joshuaholmes/rustboy9001 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:04:00.255 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:04:00.766 INFO [stdout] 18a85c3bcb6b106d6fd621fb19d6e52f61b7c1d513a18c3272c2953b1277deec
Dec 17 22:04:00.768 INFO running `"docker" "start" "-a" "18a85c3bcb6b106d6fd621fb19d6e52f61b7c1d513a18c3272c2953b1277deec"`
Dec 17 22:04:03.116 INFO [stderr]     Checking rustboy9001 v0.1.0 (/opt/crater/workdir)
Dec 17 22:04:03.299 INFO [stderr] warning: unused import: `std::str`
Dec 17 22:04:03.299 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:04:03.299 INFO [stderr]   |
Dec 17 22:04:03.299 INFO [stderr] 7 | use std::str;
Dec 17 22:04:03.299 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:04:03.299 INFO [stderr]   |
Dec 17 22:04:03.312 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:04:03.312 INFO [stderr] 
Dec 17 22:04:03.599 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:04:03.599 INFO [stderr]  --> src/util.rs:9:31
Dec 17 22:04:03.599 INFO [stderr]   |
Dec 17 22:04:03.599 INFO [stderr] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
Dec 17 22:04:03.599 INFO [stderr]   |                               ----^^^
Dec 17 22:04:03.599 INFO [stderr]   |                               |
Dec 17 22:04:03.599 INFO [stderr]   |                               help: remove this `mut`
Dec 17 22:04:03.599 INFO [stderr]   |
Dec 17 22:04:03.599 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:04:03.599 INFO [stderr] 
Dec 17 22:04:03.647 INFO [stderr] warning: unused import: `std::str`
Dec 17 22:04:03.647 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:04:03.647 INFO [stderr]   |
Dec 17 22:04:03.647 INFO [stderr] 7 | use std::str;
Dec 17 22:04:03.647 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:04:03.647 INFO [stderr]   |
Dec 17 22:04:03.647 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:04:03.647 INFO [stderr] 
Dec 17 22:04:03.846 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:04:03.846 INFO [stderr]  --> src/util.rs:9:31
Dec 17 22:04:03.847 INFO [stderr]   |
Dec 17 22:04:03.847 INFO [stderr] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
Dec 17 22:04:03.847 INFO [stderr]   |                               ----^^^
Dec 17 22:04:03.848 INFO [stderr]   |                               |
Dec 17 22:04:03.848 INFO [stderr]   |                               help: remove this `mut`
Dec 17 22:04:03.848 INFO [stderr]   |
Dec 17 22:04:03.852 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:04:03.852 INFO [stderr] 
Dec 17 22:04:03.890 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 17 22:04:05.112 INFO running `"docker" "inspect" "18a85c3bcb6b106d6fd621fb19d6e52f61b7c1d513a18c3272c2953b1277deec"`
Dec 17 22:04:05.520 INFO running `"docker" "rm" "-f" "18a85c3bcb6b106d6fd621fb19d6e52f61b7c1d513a18c3272c2953b1277deec"`
Dec 17 22:04:05.864 INFO [stdout] 18a85c3bcb6b106d6fd621fb19d6e52f61b7c1d513a18c3272c2953b1277deec