[INFO] cloning repository https://github.com/joshuaholmes/rustboy9001
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuaholmes/rustboy9001" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Frustboy9001", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Frustboy9001'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abcb864f7177456b563db525159cd2666ff0ceef
[INFO] testing joshuaholmes/rustboy9001 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Frustboy9001" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuaholmes/rustboy9001 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshuaholmes/rustboy9001
[INFO] finished tweaking git repo https://github.com/joshuaholmes/rustboy9001
[INFO] tweaked toml for git repo https://github.com/joshuaholmes/rustboy9001 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuaholmes/rustboy9001 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e08aee0f81fa6c5efe555498faf8643b117f1fe12dc283a84407b6eb7bfdcdd8
[INFO] running `Command { std: "docker" "start" "-a" "e08aee0f81fa6c5efe555498faf8643b117f1fe12dc283a84407b6eb7bfdcdd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e08aee0f81fa6c5efe555498faf8643b117f1fe12dc283a84407b6eb7bfdcdd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e08aee0f81fa6c5efe555498faf8643b117f1fe12dc283a84407b6eb7bfdcdd8", kill_on_drop: false }`
[INFO] [stdout] e08aee0f81fa6c5efe555498faf8643b117f1fe12dc283a84407b6eb7bfdcdd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10f71244cb20571c024bcdd0b113b2db1806a2a162ff3600a9e5ca2b32c22fbe
[INFO] running `Command { std: "docker" "start" "-a" "10f71244cb20571c024bcdd0b113b2db1806a2a162ff3600a9e5ca2b32c22fbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustboy9001 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:363:43
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let cgb_flag = if new_cartridge { try!(CgbFlag::from_u8(buf[CGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:369:24
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let sgb_flag = try!(SgbFlag::from_u8(buf[SGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:373:30
[INFO] [stdout]     |
[INFO] [stdout] 373 |         let cartridge_type = try!(CartridgeType::from_u8(buf[CARTRIDGE_TYPE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:377:24
[INFO] [stdout]     |
[INFO] [stdout] 377 |         let rom_size = try!(RomSize::from_u8(buf[ROM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:381:24
[INFO] [stdout]     |
[INFO] [stdout] 381 |         let ram_size = try!(RamSize::from_u8(buf[RAM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:385:32
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let destination_code = try!(DestinationCode::from_u8(buf[DESTINATION_CODE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rom.rs:323:82
[INFO] [stdout]     |
[INFO] [stdout] 323 |             Err(e) => panic!("Couldn't open ROM file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rom.rs:336:82
[INFO] [stdout]     |
[INFO] [stdout] 336 |             Err(e) => panic!("Couldn't read ROM file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/util.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
[INFO] [stdout]   |                               ----^^^
[INFO] [stdout]   |                               |
[INFO] [stdout]   |                               help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "10f71244cb20571c024bcdd0b113b2db1806a2a162ff3600a9e5ca2b32c22fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f71244cb20571c024bcdd0b113b2db1806a2a162ff3600a9e5ca2b32c22fbe", kill_on_drop: false }`
[INFO] [stdout] 10f71244cb20571c024bcdd0b113b2db1806a2a162ff3600a9e5ca2b32c22fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 185b23756f268327ad97591da5505489f1fabaa19e150d02698e1853e0044f6b
[INFO] running `Command { std: "docker" "start" "-a" "185b23756f268327ad97591da5505489f1fabaa19e150d02698e1853e0044f6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustboy9001 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:363:43
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let cgb_flag = if new_cartridge { try!(CgbFlag::from_u8(buf[CGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:369:24
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let sgb_flag = try!(SgbFlag::from_u8(buf[SGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:373:30
[INFO] [stdout]     |
[INFO] [stdout] 373 |         let cartridge_type = try!(CartridgeType::from_u8(buf[CARTRIDGE_TYPE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:377:24
[INFO] [stdout]     |
[INFO] [stdout] 377 |         let rom_size = try!(RomSize::from_u8(buf[ROM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:381:24
[INFO] [stdout]     |
[INFO] [stdout] 381 |         let ram_size = try!(RamSize::from_u8(buf[RAM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/rom.rs:385:32
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let destination_code = try!(DestinationCode::from_u8(buf[DESTINATION_CODE_ADDR]).ok_or_else(|| {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rom.rs:323:82
[INFO] [stdout]     |
[INFO] [stdout] 323 |             Err(e) => panic!("Couldn't open ROM file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rom.rs:336:82
[INFO] [stdout]     |
[INFO] [stdout] 336 |             Err(e) => panic!("Couldn't read ROM file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/util.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
[INFO] [stdout]   |                               ----^^^
[INFO] [stdout]   |                               |
[INFO] [stdout]   |                               help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rustboy9001-64da14e6b0380fc8)
[INFO] running `Command { std: "docker" "inspect" "185b23756f268327ad97591da5505489f1fabaa19e150d02698e1853e0044f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185b23756f268327ad97591da5505489f1fabaa19e150d02698e1853e0044f6b", kill_on_drop: false }`
[INFO] [stdout] 185b23756f268327ad97591da5505489f1fabaa19e150d02698e1853e0044f6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60e72b6570052b22ab90fbf59624106c746d63eeeb71096b7ffe1e28aa1c1ae5
[INFO] running `Command { std: "docker" "start" "-a" "60e72b6570052b22ab90fbf59624106c746d63eeeb71096b7ffe1e28aa1c1ae5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:363:43
[INFO] [stderr]     |
[INFO] [stderr] 363 |         let cgb_flag = if new_cartridge { try!(CgbFlag::from_u8(buf[CGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:369:24
[INFO] [stderr]     |
[INFO] [stderr] 369 |         let sgb_flag = try!(SgbFlag::from_u8(buf[SGB_FLAG_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:373:30
[INFO] [stderr]     |
[INFO] [stderr] 373 |         let cartridge_type = try!(CartridgeType::from_u8(buf[CARTRIDGE_TYPE_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:377:24
[INFO] [stderr]     |
[INFO] [stderr] 377 |         let rom_size = try!(RomSize::from_u8(buf[ROM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:381:24
[INFO] [stderr]     |
[INFO] [stderr] 381 |         let ram_size = try!(RamSize::from_u8(buf[RAM_SIZE_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/rom.rs:385:32
[INFO] [stderr]     |
[INFO] [stderr] 385 |         let destination_code = try!(DestinationCode::from_u8(buf[DESTINATION_CODE_ADDR]).ok_or_else(|| {
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/rom.rs:323:82
[INFO] [stderr]     |
[INFO] [stderr] 323 |             Err(e) => panic!("Couldn't open ROM file. Error message: {}", Error::description(&e)),
[INFO] [stderr]     |                                                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/rom.rs:336:82
[INFO] [stderr]     |
[INFO] [stderr] 336 |             Err(e) => panic!("Couldn't read ROM file. Error message: {}", Error::description(&e)),
[INFO] [stderr]     |                                                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/util.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn get_subarray_of_vector(mut arr: &mut [u8], vec: &Vec<u8>, start: usize) {
[INFO] [stderr]   |                               ----^^^
[INFO] [stderr]   |                               |
[INFO] [stderr]   |                               help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustboy9001` (bin "rustboy9001" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustboy9001-64da14e6b0380fc8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60e72b6570052b22ab90fbf59624106c746d63eeeb71096b7ffe1e28aa1c1ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60e72b6570052b22ab90fbf59624106c746d63eeeb71096b7ffe1e28aa1c1ae5", kill_on_drop: false }`
[INFO] [stdout] 60e72b6570052b22ab90fbf59624106c746d63eeeb71096b7ffe1e28aa1c1ae5