[INFO] cloning repository https://github.com/pcein/chip8_emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pcein/chip8_emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcein%2Fchip8_emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcein%2Fchip8_emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5c4288b44bbe047d7445446b120f69b26af39d2
[INFO] checking pcein/chip8_emu against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcein%2Fchip8_emu" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pcein/chip8_emu on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pcein/chip8_emu
[INFO] finished tweaking git repo https://github.com/pcein/chip8_emu
[INFO] tweaked toml for git repo https://github.com/pcein/chip8_emu written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pcein/chip8_emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maplit v1.0.0
[INFO] [stderr]   Downloaded structopt-derive v0.1.5
[INFO] [stderr]   Downloaded structopt v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1ff4c1a0ccabd040479bc31caa73a830cd8e7d5d0b130f9020721e3de7cc199
[INFO] running `Command { std: "docker" "start" "-a" "f1ff4c1a0ccabd040479bc31caa73a830cd8e7d5d0b130f9020721e3de7cc199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1ff4c1a0ccabd040479bc31caa73a830cd8e7d5d0b130f9020721e3de7cc199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ff4c1a0ccabd040479bc31caa73a830cd8e7d5d0b130f9020721e3de7cc199", kill_on_drop: false }`
[INFO] [stdout] f1ff4c1a0ccabd040479bc31caa73a830cd8e7d5d0b130f9020721e3de7cc199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 947c13170578ad7a9dd97348ff4d16922b98c82ba2341978df37dca066b157d9
[INFO] running `Command { std: "docker" "start" "-a" "947c13170578ad7a9dd97348ff4d16922b98c82ba2341978df37dca066b157d9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking maplit v1.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling structopt-derive v0.1.5
[INFO] [stderr]     Checking structopt v0.1.5
[INFO] [stderr]     Checking chip8_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:663:1
[INFO] [stdout]     |
[INFO] [stdout] 663 | / /// INSN_LUT1 is an instruction lookup table; used for decoding an 
[INFO] [stdout] 664 | | /// instruction based on its leftmost nibble.
[INFO] [stdout]     | |_--------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:682:1
[INFO] [stdout]     |
[INFO] [stdout] 682 | / /// There are multiple instructions whose opcodes start with
[INFO] [stdout] 683 | | /// the leftmost nibble equal to 8. These instructions are uniquely
[INFO] [stdout] 684 | | /// identified based on the value of their rightmost nibble. INSN_LUT2
[INFO] [stdout] 685 | | /// is used to perform this identification.
[INFO] [stdout]     | |_------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:700:1
[INFO] [stdout]     |
[INFO] [stdout] 700 | / /// There are multiple instructions whose opcodes start
[INFO] [stdout] 701 | | /// with the leftmost nibble equal to 0xf. INSN_LUT3 identifies
[INFO] [stdout] 702 | | /// these instructions based on the value of their least 
[INFO] [stdout] 703 | | /// significant byte. 
[INFO] [stdout]     | |_---------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// CHIP-8 uses keys from 0,1,...9 and a, b, ... f.
[INFO] [stdout] 27 | | /// These are assigned codes from 0, 1, ... 0xf.
[INFO] [stdout]    | |_-----------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / /// CHIP-8 uses only two colors: 0 for OFF and
[INFO] [stdout] 50 | | /// 1 for ON.
[INFO] [stdout]    | |_------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:663:1
[INFO] [stdout]     |
[INFO] [stdout] 663 | / /// INSN_LUT1 is an instruction lookup table; used for decoding an 
[INFO] [stdout] 664 | | /// instruction based on its leftmost nibble.
[INFO] [stdout]     | |_--------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:682:1
[INFO] [stdout]     |
[INFO] [stdout] 682 | / /// There are multiple instructions whose opcodes start with
[INFO] [stdout] 683 | | /// the leftmost nibble equal to 8. These instructions are uniquely
[INFO] [stdout] 684 | | /// identified based on the value of their rightmost nibble. INSN_LUT2
[INFO] [stdout] 685 | | /// is used to perform this identification.
[INFO] [stdout]     | |_------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:700:1
[INFO] [stdout]     |
[INFO] [stdout] 700 | / /// There are multiple instructions whose opcodes start
[INFO] [stdout] 701 | | /// with the leftmost nibble equal to 0xf. INSN_LUT3 identifies
[INFO] [stdout] 702 | | /// these instructions based on the value of their least 
[INFO] [stdout] 703 | | /// significant byte. 
[INFO] [stdout]     | |_---------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// CHIP-8 uses keys from 0,1,...9 and a, b, ... f.
[INFO] [stdout] 27 | | /// These are assigned codes from 0, 1, ... 0xf.
[INFO] [stdout]    | |_-----------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / /// CHIP-8 uses only two colors: 0 for OFF and
[INFO] [stdout] 50 | | /// 1 for ON.
[INFO] [stdout]    | |_------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.75s
[INFO] running `Command { std: "docker" "inspect" "947c13170578ad7a9dd97348ff4d16922b98c82ba2341978df37dca066b157d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947c13170578ad7a9dd97348ff4d16922b98c82ba2341978df37dca066b157d9", kill_on_drop: false }`
[INFO] [stdout] 947c13170578ad7a9dd97348ff4d16922b98c82ba2341978df37dca066b157d9
[INFO] checking pcein/chip8_emu against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcein%2Fchip8_emu" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pcein/chip8_emu on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pcein/chip8_emu
[INFO] finished tweaking git repo https://github.com/pcein/chip8_emu
[INFO] tweaked toml for git repo https://github.com/pcein/chip8_emu written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pcein/chip8_emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1c6f80210848798459d7455937dda84bf79ed62412e4001ce0218ef866d4db7
[INFO] running `Command { std: "docker" "start" "-a" "f1c6f80210848798459d7455937dda84bf79ed62412e4001ce0218ef866d4db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1c6f80210848798459d7455937dda84bf79ed62412e4001ce0218ef866d4db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c6f80210848798459d7455937dda84bf79ed62412e4001ce0218ef866d4db7", kill_on_drop: false }`
[INFO] [stdout] f1c6f80210848798459d7455937dda84bf79ed62412e4001ce0218ef866d4db7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 218978fc8d8f0460c9b50929b566110ec7a7cc297b0dcefb10023822ebbf6c3a
[INFO] running `Command { std: "docker" "start" "-a" "218978fc8d8f0460c9b50929b566110ec7a7cc297b0dcefb10023822ebbf6c3a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking maplit v1.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling structopt-derive v0.1.5
[INFO] [stderr]     Checking structopt v0.1.5
[INFO] [stderr]     Checking chip8_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:663:1
[INFO] [stdout]     |
[INFO] [stdout] 663 | / /// INSN_LUT1 is an instruction lookup table; used for decoding an 
[INFO] [stdout] 664 | | /// instruction based on its leftmost nibble.
[INFO] [stdout]     | |_--------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:682:1
[INFO] [stdout]     |
[INFO] [stdout] 682 | / /// There are multiple instructions whose opcodes start with
[INFO] [stdout] 683 | | /// the leftmost nibble equal to 8. These instructions are uniquely
[INFO] [stdout] 684 | | /// identified based on the value of their rightmost nibble. INSN_LUT2
[INFO] [stdout] 685 | | /// is used to perform this identification.
[INFO] [stdout]     | |_------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:700:1
[INFO] [stdout]     |
[INFO] [stdout] 700 | / /// There are multiple instructions whose opcodes start
[INFO] [stdout] 701 | | /// with the leftmost nibble equal to 0xf. INSN_LUT3 identifies
[INFO] [stdout] 702 | | /// these instructions based on the value of their least 
[INFO] [stdout] 703 | | /// significant byte. 
[INFO] [stdout]     | |_---------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// CHIP-8 uses keys from 0,1,...9 and a, b, ... f.
[INFO] [stdout] 27 | | /// These are assigned codes from 0, 1, ... 0xf.
[INFO] [stdout]    | |_-----------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / /// CHIP-8 uses only two colors: 0 for OFF and
[INFO] [stdout] 50 | | /// 1 for ON.
[INFO] [stdout]    | |_------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:663:1
[INFO] [stdout]     |
[INFO] [stdout] 663 | / /// INSN_LUT1 is an instruction lookup table; used for decoding an 
[INFO] [stdout] 664 | | /// instruction based on its leftmost nibble.
[INFO] [stdout]     | |_--------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:682:1
[INFO] [stdout]     |
[INFO] [stdout] 682 | / /// There are multiple instructions whose opcodes start with
[INFO] [stdout] 683 | | /// the leftmost nibble equal to 8. These instructions are uniquely
[INFO] [stdout] 684 | | /// identified based on the value of their rightmost nibble. INSN_LUT2
[INFO] [stdout] 685 | | /// is used to perform this identification.
[INFO] [stdout]     | |_------------------------------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cpu.rs:700:1
[INFO] [stdout]     |
[INFO] [stdout] 700 | / /// There are multiple instructions whose opcodes start
[INFO] [stdout] 701 | | /// with the leftmost nibble equal to 0xf. INSN_LUT3 identifies
[INFO] [stdout] 702 | | /// these instructions based on the value of their least 
[INFO] [stdout] 703 | | /// significant byte. 
[INFO] [stdout]     | |_---------------------^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// CHIP-8 uses keys from 0,1,...9 and a, b, ... f.
[INFO] [stdout] 27 | | /// These are assigned codes from 0, 1, ... 0xf.
[INFO] [stdout]    | |_-----------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/screen.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / /// CHIP-8 uses only two colors: 0 for OFF and
[INFO] [stdout] 50 | | /// 1 for ON.
[INFO] [stdout]    | |_------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:665:1
[INFO] [stdout]     |
[INFO] [stdout] 665 | / lazy_static! {
[INFO] [stdout] 666 | |      static  ref  INSN_LUT1:HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 667 | |         1 => CPU::jmp as InsnPtr,
[INFO] [stdout] 668 | |         2 => CPU::call as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 679 | |     };
[INFO] [stdout] 680 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:686:1
[INFO] [stdout]     |
[INFO] [stdout] 686 | / lazy_static! {
[INFO] [stdout] 687 | |     static ref INSN_LUT2: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 688 | |         0 => CPU::assign_vy_to_vx as InsnPtr,
[INFO] [stdout] 689 | |         1 => CPU::assign_vx_or_vy_to_vx as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 697 | |     };
[INFO] [stdout] 698 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/cpu.rs:704:1
[INFO] [stdout]     |
[INFO] [stdout] 704 | / lazy_static! {
[INFO] [stdout] 705 | |     static ref INSN_LUT3: HashMap<u8, InsnPtr> = hashmap! {
[INFO] [stdout] 706 | |         0x1e => CPU::assign_i_plus_vx_to_i as InsnPtr,
[INFO] [stdout] 707 | |         0x33 => CPU::store_bcd_of_vx_to_mem as InsnPtr,
[INFO] [stdout] ...   |
[INFO] [stdout] 715 | |     };
[INFO] [stdout] 716 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / lazy_static! {
[INFO] [stdout] 29 | |     static ref KEYCODES:HashMap<u8, Keycode> = hashmap! {
[INFO] [stdout] 30 | |          0x0 => Keycode::Num0,
[INFO] [stdout] 31 | |          0x1 => Keycode::Num1,
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/screen.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / lazy_static! {
[INFO] [stdout] 52 | |     pub static ref PIXEL_COLORS:[Color; 2] = 
[INFO] [stdout] 53 | |         [Color::RGBA(0, 0, 0, 255), 
[INFO] [stdout] 54 | |          Color::RGBA(250, 250, 250, 255)];
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.48s
[INFO] running `Command { std: "docker" "inspect" "218978fc8d8f0460c9b50929b566110ec7a7cc297b0dcefb10023822ebbf6c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218978fc8d8f0460c9b50929b566110ec7a7cc297b0dcefb10023822ebbf6c3a", kill_on_drop: false }`
[INFO] [stdout] 218978fc8d8f0460c9b50929b566110ec7a7cc297b0dcefb10023822ebbf6c3a