[INFO] updating cached repository abrodersen/chip-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/abrodersen/chip-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/abrodersen/chip-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/abrodersen/chip-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/abrodersen/chip-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/abrodersen/chip-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea43a23a11cc28190ac0b5cb002b2e233780e254
[INFO] sha for GitHub repo abrodersen/chip-rs: ea43a23a11cc28190ac0b5cb002b2e233780e254
[INFO] validating manifest of abrodersen/chip-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of abrodersen/chip-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing abrodersen/chip-rs
[INFO] finished frobbing abrodersen/chip-rs
[INFO] frobbed toml for abrodersen/chip-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/abrodersen/chip-rs/Cargo.toml
[INFO] started frobbing abrodersen/chip-rs
[INFO] finished frobbing abrodersen/chip-rs
[INFO] frobbed toml for abrodersen/chip-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs/Cargo.toml
[INFO] crate abrodersen/chip-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing abrodersen/chip-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 49f513d6bdeb15742cb6a47de9bc50b1f5109694aed6e54112404b323df3554f
[INFO] running `"docker" "start" "-a" "49f513d6bdeb15742cb6a47de9bc50b1f5109694aed6e54112404b323df3554f"`
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling lazy_static v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling chan v0.1.19
[INFO] [stderr]    Compiling sdl2 v0.29.0
[INFO] [stderr]    Compiling chan-signal v0.2.0
[INFO] [stderr]    Compiling chip-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/chip8/cpu.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::display::{self, Display, Point, Sprite};
[INFO] [stderr]   |                      ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/chip8/cpu.rs:98:46
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn load_program(&mut self, src: &mut io::Read) -> Result<usize, io::Error>  {
[INFO] [stderr]    |                                              ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect`
[INFO] [stderr]  --> src/chip8/display/sdl.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::rect;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | use rand::{Rng, SeedableRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::video`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use sdl2::video;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_addr`
[INFO] [stderr]    --> src/chip8/cpu.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                 let base_addr = self.i_reg;
[INFO] [stderr]     |                     ^^^^^^^^^ help: consider prefixing with an underscore: `_base_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut rng = rand::StdRng::from_seed(seed);
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut display = display::sdl::SdlDisplay::new(&video_subsystem);
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut input = input::sdl::SdlInput::new(&mut input_subsystem);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DebugDisplay`
[INFO] [stderr]  --> src/chip8/display/debug.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct DebugDisplay {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/chip8/display/debug.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> DebugDisplay {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         renderer.set_scale(SCALE_FACTOR as f32, SCALE_FACTOR as f32);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |         r.draw_points(white.as_slice());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         r.draw_points(black.as_slice());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.09s
[INFO] running `"docker" "inspect" "49f513d6bdeb15742cb6a47de9bc50b1f5109694aed6e54112404b323df3554f"`
[INFO] running `"docker" "rm" "-f" "49f513d6bdeb15742cb6a47de9bc50b1f5109694aed6e54112404b323df3554f"`
[INFO] [stdout] 49f513d6bdeb15742cb6a47de9bc50b1f5109694aed6e54112404b323df3554f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] c0e842ee1f7ff0a97ae9a01f80e01fefb3dfe6157c7a3f286e85274b0d28d5e3
[INFO] running `"docker" "start" "-a" "c0e842ee1f7ff0a97ae9a01f80e01fefb3dfe6157c7a3f286e85274b0d28d5e3"`
[INFO] [stderr]    Compiling chip-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/chip8/cpu.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::display::{self, Display, Point, Sprite};
[INFO] [stderr]   |                      ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/chip8/cpu.rs:98:46
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn load_program(&mut self, src: &mut io::Read) -> Result<usize, io::Error>  {
[INFO] [stderr]    |                                              ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect`
[INFO] [stderr]  --> src/chip8/display/sdl.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::rect;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | use rand::{Rng, SeedableRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::video`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use sdl2::video;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/chip8/display/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | / lazy_static! {
[INFO] [stderr] 22 | |     pub static ref ZERO:  Sprite = { Sprite::new(&[0xF0, 0x90, 0x90, 0x90, 0xF0]) };
[INFO] [stderr] 23 | |     pub static ref ONE:   Sprite = { Sprite::new(&[0x20, 0x60, 0x20, 0x20, 0x70]) };
[INFO] [stderr] 24 | |     pub static ref TWO:   Sprite = { Sprite::new(&[0xF0, 0x10, 0xF0, 0x80, 0xF0]) };
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     pub static ref F:     Sprite = { Sprite::new(&[0xF0, 0x80, 0xF0, 0x80, 0x80]) };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base_addr`
[INFO] [stderr]    --> src/chip8/cpu.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                 let base_addr = self.i_reg;
[INFO] [stderr]     |                     ^^^^^^^^^ help: consider prefixing with an underscore: `_base_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut rng = rand::StdRng::from_seed(seed);
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut display = display::sdl::SdlDisplay::new(&video_subsystem);
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut input = input::sdl::SdlInput::new(&mut input_subsystem);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DebugDisplay`
[INFO] [stderr]  --> src/chip8/display/debug.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct DebugDisplay {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/chip8/display/debug.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> DebugDisplay {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         renderer.set_scale(SCALE_FACTOR as f32, SCALE_FACTOR as f32);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |         r.draw_points(white.as_slice());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chip8/display/sdl.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         r.draw_points(black.as_slice());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "c0e842ee1f7ff0a97ae9a01f80e01fefb3dfe6157c7a3f286e85274b0d28d5e3"`
[INFO] running `"docker" "rm" "-f" "c0e842ee1f7ff0a97ae9a01f80e01fefb3dfe6157c7a3f286e85274b0d28d5e3"`
[INFO] [stdout] c0e842ee1f7ff0a97ae9a01f80e01fefb3dfe6157c7a3f286e85274b0d28d5e3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abrodersen/chip-rs:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a636beb0a22678622aadc752a09f3433d5ca577c88dd0495511bc04d382cf7a1
[INFO] running `"docker" "start" "-a" "a636beb0a22678622aadc752a09f3433d5ca577c88dd0495511bc04d382cf7a1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip_rs-bede9268630a95ea
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test chip8::op::get_byte ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a636beb0a22678622aadc752a09f3433d5ca577c88dd0495511bc04d382cf7a1"`
[INFO] running `"docker" "rm" "-f" "a636beb0a22678622aadc752a09f3433d5ca577c88dd0495511bc04d382cf7a1"`
[INFO] [stdout] a636beb0a22678622aadc752a09f3433d5ca577c88dd0495511bc04d382cf7a1