[INFO] updating cached repository https://github.com/JoshMarron/chip8-emulator
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca356a087ab2986b2ed8dcf69715e2fbdf79d073
[INFO] checking JoshMarron/chip8-emulator against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshMarron%2Fchip8-emulator" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshMarron/chip8-emulator on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JoshMarron/chip8-emulator
[INFO] finished tweaking git repo https://github.com/JoshMarron/chip8-emulator
[INFO] tweaked toml for git repo https://github.com/JoshMarron/chip8-emulator written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshMarron/chip8-emulator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c0f9814b9265620dc2bf0770544c9edb7977d257e6fc68458fb477663d3a62d
[INFO] running `"docker" "start" "-a" "2c0f9814b9265620dc2bf0770544c9edb7977d257e6fc68458fb477663d3a62d"`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking sdl2-sys v0.30.0
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking fern v0.4.2
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]     Checking chip8-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emulator.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emulator.rs:34:77
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn loop_emulation(mut state: Chip8State, debug: bool) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         0x00...0x0F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         0x10...0x1F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         0x20...0x2F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         0x30...0x3F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         0x40...0x4F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         0x50...0x5F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |         0x60...0x6F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         0x70...0x7F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         0x80...0x8F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |         0x90...0x9F => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         0xA0...0xAF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         0xB0...0xBF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |         0xC0...0xCF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |         0xD0...0xDF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |         0xE0...0xEF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         0xF0...0xFF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/display.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/display.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 mut_x = if (mut_x == (CHIP8_WIDTH - 1) as u8) {0} else {mut_x + 1};
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/display.rs:105:20
[INFO] [stderr]     |
[INFO] [stderr] 105 |             y = if (y == (CHIP8_HEIGHT - 1) as u8) {0} else {y + 1};
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/display.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 | ...                   (xpos as i32 * PIXEL_SIZE as i32), 
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/display.rs:152:33
[INFO] [stderr]     |
[INFO] [stderr] 152 | ...                   (ypos as i32 * PIXEL_SIZE as i32),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emulator.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emulator.rs:34:77
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn loop_emulation(mut state: Chip8State, debug: bool) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         0x00...0x0F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         0x10...0x1F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         0x20...0x2F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         0x30...0x3F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         0x40...0x4F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         0x50...0x5F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |         0x60...0x6F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         0x70...0x7F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/decoder.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         0x80...0x8F => {
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |         0x90...0x9F => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         0xA0...0xAF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         0xB0...0xBF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |         0xC0...0xCF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |         0xD0...0xDF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |         0xE0...0xEF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/decoder.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         0xF0...0xFF => {
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/display.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/display.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 mut_x = if (mut_x == (CHIP8_WIDTH - 1) as u8) {0} else {mut_x + 1};
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/display.rs:105:20
[INFO] [stderr]     |
[INFO] [stderr] 105 |             y = if (y == (CHIP8_HEIGHT - 1) as u8) {0} else {y + 1};
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/display.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 | ...                   (xpos as i32 * PIXEL_SIZE as i32), 
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/display.rs:152:33
[INFO] [stderr]     |
[INFO] [stderr] 152 | ...                   (ypos as i32 * PIXEL_SIZE as i32),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/decoder.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         _ => Instruction::Unknown(opcode)
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:23
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/decoder.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         _ => Instruction::Unknown(opcode)
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:23
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/display.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut window = window_builder.opengl().build().unwrap();
[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/display.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut window = window_builder.opengl().build().unwrap();
[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/display.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut sound_system = context.audio().unwrap();
[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/display.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut sound_system = context.audio().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.76s
[INFO] running `"docker" "inspect" "2c0f9814b9265620dc2bf0770544c9edb7977d257e6fc68458fb477663d3a62d"`
[INFO] running `"docker" "rm" "-f" "2c0f9814b9265620dc2bf0770544c9edb7977d257e6fc68458fb477663d3a62d"`
[INFO] [stdout] 2c0f9814b9265620dc2bf0770544c9edb7977d257e6fc68458fb477663d3a62d