[INFO] cloning repository https://github.com/mdu02/ferric-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdu02/ferric-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5cbcb687d15d6576d8b9e4c9f7229b450e5b1d4
[INFO] testing mdu02/ferric-8 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-8" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdu02/ferric-8
[INFO] finished tweaking git repo https://github.com/mdu02/ferric-8
[INFO] tweaked toml for git repo https://github.com/mdu02/ferric-8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdu02/ferric-8 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdu02/ferric-8 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.34.5
[INFO] [stderr]   Downloaded libc v0.2.97
[INFO] [stderr]   Downloaded sdl2-sys v0.34.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 459401809c9f76719f4671b868f8a24c6d347af0ea5212f6465cac6fe95e2d4e
[INFO] running `Command { std: "docker" "start" "-a" "459401809c9f76719f4671b868f8a24c6d347af0ea5212f6465cac6fe95e2d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "459401809c9f76719f4671b868f8a24c6d347af0ea5212f6465cac6fe95e2d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459401809c9f76719f4671b868f8a24c6d347af0ea5212f6465cac6fe95e2d4e", kill_on_drop: false }`
[INFO] [stdout] 459401809c9f76719f4671b868f8a24c6d347af0ea5212f6465cac6fe95e2d4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d3cae802bec6b63a49801773f81de63fd4f32257fc2a046525a0253425fd5e4
[INFO] running `Command { std: "docker" "start" "-a" "5d3cae802bec6b63a49801773f81de63fd4f32257fc2a046525a0253425fd5e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ferric-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/speaker.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 0.0...0.5 => self.volume,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut v_regs:[ByteRegister; 16] =
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut stack_regs:[WordRegister; 17] = [WordRegister::new(String::from("dummy")),
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/byte_register.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let mut reg : ByteRegister = ByteRegister { value: 0, name};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/word_register.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let mut reg : WordRegister = WordRegister { value: 0, name};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut speaker = Speaker::new(sdl);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_word` and `core_dump` are never used
[INFO] [stdout]   --> src/ram.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl RAM {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn write_word(&mut self, adr: u16, val: u16) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn core_dump(&self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/byte_register.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct ByteRegister {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 2 |     value: u8,
[INFO] [stdout] 3 |     name: String
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/word_register.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct WordRegister {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 2 |     value: u16,
[INFO] [stdout] 3 |     name: String
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment_reg` and `decrement_reg` are never used
[INFO] [stdout]   --> src/word_register.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl WordRegister {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn increment_reg(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn decrement_reg(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw_to_console` is never used
[INFO] [stdout]   --> src/graphics_buffer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl GraphicsBuffer{
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn draw_to_console(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graphics_buffer.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 | /                     canvas.fill_rect(
[INFO] [stdout] 54 | |                         Rect::new((PIXEL_WIDTH * i as u32) as i32, (PIXEL_WIDTH * j as u32) as i32,
[INFO] [stdout] 55 | |                                   PIXEL_WIDTH, PIXEL_WIDTH)
[INFO] [stdout] 56 | |                     );
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     let _ = canvas.fill_rect(
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "5d3cae802bec6b63a49801773f81de63fd4f32257fc2a046525a0253425fd5e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d3cae802bec6b63a49801773f81de63fd4f32257fc2a046525a0253425fd5e4", kill_on_drop: false }`
[INFO] [stdout] 5d3cae802bec6b63a49801773f81de63fd4f32257fc2a046525a0253425fd5e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f953b0f621f9f2acbf04d3032b7d3ff36bba307ac73511b65218fa996867606f
[INFO] running `Command { std: "docker" "start" "-a" "f953b0f621f9f2acbf04d3032b7d3ff36bba307ac73511b65218fa996867606f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ferric-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/speaker.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 0.0...0.5 => self.volume,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut v_regs:[ByteRegister; 16] =
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut stack_regs:[WordRegister; 17] = [WordRegister::new(String::from("dummy")),
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:304:13
[INFO] [stdout]     |
[INFO] [stdout] 304 |         let mut ram = RAM::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/byte_register.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let mut reg : ByteRegister = ByteRegister { value: 0, name};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/word_register.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let mut reg : WordRegister = WordRegister { value: 0, name};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/graphics_buffer.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut gfx = GraphicsBuffer::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut speaker = Speaker::new(sdl);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `core_dump` is never used
[INFO] [stdout]   --> src/ram.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl RAM {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn core_dump(&self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ret_test` is never used
[INFO] [stdout]    --> src/cpu.rs:333:8
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn ret_test() {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/byte_register.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct ByteRegister {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 2 |     value: u8,
[INFO] [stdout] 3 |     name: String
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/word_register.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct WordRegister {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 2 |     value: u16,
[INFO] [stdout] 3 |     name: String
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw_to_console` is never used
[INFO] [stdout]   --> src/graphics_buffer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl GraphicsBuffer{
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn draw_to_console(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graphics_buffer.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 | /                     canvas.fill_rect(
[INFO] [stdout] 54 | |                         Rect::new((PIXEL_WIDTH * i as u32) as i32, (PIXEL_WIDTH * j as u32) as i32,
[INFO] [stdout] 55 | |                                   PIXEL_WIDTH, PIXEL_WIDTH)
[INFO] [stdout] 56 | |                     );
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     let _ = canvas.fill_rect(
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "f953b0f621f9f2acbf04d3032b7d3ff36bba307ac73511b65218fa996867606f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f953b0f621f9f2acbf04d3032b7d3ff36bba307ac73511b65218fa996867606f", kill_on_drop: false }`
[INFO] [stdout] f953b0f621f9f2acbf04d3032b7d3ff36bba307ac73511b65218fa996867606f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 840bd5803f57038bf1c3011a7266430e0097bb606be461da919a3dcecd67aa98
[INFO] running `Command { std: "docker" "start" "-a" "840bd5803f57038bf1c3011a7266430e0097bb606be461da919a3dcecd67aa98", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/speaker.rs:50:20
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 0.0...0.5 => self.volume,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut v_regs:[ByteRegister; 16] =
[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/cpu.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut stack_regs:[WordRegister; 17] = [WordRegister::new(String::from("dummy")),
[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/cpu.rs:304:13
[INFO] [stderr]     |
[INFO] [stderr] 304 |         let mut ram = RAM::new();
[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/byte_register.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |         let mut reg : ByteRegister = ByteRegister { value: 0, name};
[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/word_register.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |         let mut reg : WordRegister = WordRegister { value: 0, name};
[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/graphics_buffer.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let mut gfx = GraphicsBuffer::new();
[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:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut speaker = Speaker::new(sdl);
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method `core_dump` is never used
[INFO] [stderr]   --> src/ram.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 7  | impl RAM {
[INFO] [stderr]    | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 55 |     pub fn core_dump(&self) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `ret_test` is never used
[INFO] [stderr]    --> src/cpu.rs:333:8
[INFO] [stderr]     |
[INFO] [stderr] 333 |     fn ret_test() {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/byte_register.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct ByteRegister {
[INFO] [stderr]   |            ------------ field in this struct
[INFO] [stderr] 2 |     value: u8,
[INFO] [stderr] 3 |     name: String
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/word_register.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct WordRegister {
[INFO] [stderr]   |            ------------ field in this struct
[INFO] [stderr] 2 |     value: u16,
[INFO] [stderr] 3 |     name: String
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `draw_to_console` is never used
[INFO] [stderr]   --> src/graphics_buffer.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl GraphicsBuffer{
[INFO] [stderr]    | ------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 37 |     pub fn draw_to_console(&self){
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/graphics_buffer.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 | /                     canvas.fill_rect(
[INFO] [stderr] 54 | |                         Rect::new((PIXEL_WIDTH * i as u32) as i32, (PIXEL_WIDTH * j as u32) as i32,
[INFO] [stderr] 55 | |                                   PIXEL_WIDTH, PIXEL_WIDTH)
[INFO] [stderr] 56 | |                     );
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 53 |                     let _ = canvas.fill_rect(
[INFO] [stderr]    |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ferric-8` (bin "ferric-8" test) generated 14 warnings (run `cargo fix --bin "ferric-8" --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ferric_8-c740656cbf4aa98c)
[INFO] [stdout] 
[INFO] [stdout] running 59 tests
[INFO] [stdout] test byte_register::tests::decrement ... ok
[INFO] [stdout] test byte_register::tests::increment ... ok
[INFO] [stdout] test byte_register::tests::read_write ... ok
[INFO] [stdout] test cpu::tests::add_imm_test ... ok
[INFO] [stdout] test cpu::tests::add_imm_overflow_test ... ok
[INFO] [stdout] test cpu::tests::add_index_test ... ok
[INFO] [stdout] test cpu::tests::add_mem_overflow_test ... ok
[INFO] [stdout] test cpu::tests::add_mem_test ... ok
[INFO] [stdout] test cpu::tests::and_test ... ok
[INFO] [stdout] test cpu::tests::call_test ... ok
[INFO] [stdout] test cpu::tests::bin_dec_test ... ok
[INFO] [stdout] test cpu::tests::cls_test ... ok
[INFO] [stdout] test cpu::tests::jp_mem_test ... ok
[INFO] [stdout] test cpu::tests::jp_test ... ok
[INFO] [stdout] test cpu::tests::ld_from_dt_test ... ok
[INFO] [stdout] test cpu::tests::ld_imm_test ... ok
[INFO] [stdout] test cpu::tests::ld_from_reg_test ... ok
[INFO] [stdout] test cpu::tests::ld_into_dt_test ... ok
[INFO] [stdout] test cpu::tests::ld_into_st_test ... ok
[INFO] [stdout] test cpu::tests::ld_mem_test ... ok
[INFO] [stdout] test cpu::tests::ld_test ... ok
[INFO] [stdout] test cpu::tests::ld_sprite_test ... ok
[INFO] [stdout] test cpu::tests::se_imm_eq_test ... ok
[INFO] [stdout] test cpu::tests::or_test ... ok
[INFO] [stdout] test cpu::tests::shl_one_test ... ok
[INFO] [stdout] test cpu::tests::ld_to_reg_test ... ok
[INFO] [stdout] test cpu::tests::shl_zero_test ... ok
[INFO] [stdout] test cpu::tests::se_mem_neq_test ... ok
[INFO] [stdout] test cpu::tests::skp_pressed_test ... ok
[INFO] [stdout] test cpu::tests::sne_mem_eq_test ... ok
[INFO] [stdout] test cpu::tests::shr_one_test ... ok
[INFO] [stdout] test cpu::tests::sne_mem_neq_test ... ok
[INFO] [stdout] test cpu::tests::se_mem_eq_test ... ok
[INFO] [stdout] test cpu::tests::sknp_not_pressed_test ... ok
[INFO] [stdout] test cpu::tests::sub_borrow_test ... ok
[INFO] [stdout] test cpu::tests::sne_neq_test ... ok
[INFO] [stdout] test cpu::tests::sub_no_borrow_test ... ok
[INFO] [stdout] test cpu::tests::subn_borrow_test ... ok
[INFO] [stdout] test cpu::tests::subn_no_borrow_test ... ok
[INFO] [stdout] test cpu::tests::skp_not_pressed_test ... ok
[INFO] [stdout] test cpu::tests::timer_test ... ok
[INFO] [stdout] test cpu::tests::se_imm_neq_test ... ok
[INFO] [stdout] test graphics_buffer::tests::get_test ... ok
[INFO] [stdout] test cpu::tests::shr_zero_test ... ok
[INFO] [stdout] test graphics_buffer::tests::toggle_test ... ok
[INFO] [stdout] test cpu::tests::sknp_pressed_test ... ok
[INFO] [stdout] test ram::tests::load_rom_test ... ok
[INFO] [stdout] test ram::tests::read_write_byte ... ok
[INFO] [stdout] test ram::tests::read_write_word ... ok
[INFO] [stdout] test cpu::tests::xor_test ... ok
[INFO] [stdout] test ram::tests::write_bytes_read_word ... ok
[INFO] [stdout] test ram::tests::write_word_read_bytes ... ok
[INFO] [stdout] test graphics_buffer::tests::clear_test ... ok
[INFO] [stdout] test word_register::tests::decrement_test ... ok
[INFO] [stdout] test word_register::tests::increment_test ... ok
[INFO] [stdout] test cpu::tests::sne_eq_test ... ok
[INFO] [stdout] test word_register::tests::wait_test ... ok
[INFO] [stdout] test word_register::tests::skip_test ... ok
[INFO] [stdout] test word_register::tests::read_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 59 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "840bd5803f57038bf1c3011a7266430e0097bb606be461da919a3dcecd67aa98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840bd5803f57038bf1c3011a7266430e0097bb606be461da919a3dcecd67aa98", kill_on_drop: false }`
[INFO] [stdout] 840bd5803f57038bf1c3011a7266430e0097bb606be461da919a3dcecd67aa98
