[INFO] cloning repository https://github.com/christ776/Rust-Z80
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christ776/Rust-Z80" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrist776%2FRust-Z80", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrist776%2FRust-Z80'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 197a4997ae34756d897644cff391d32b57b75c3e
[INFO] checking christ776/Rust-Z80 against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrist776%2FRust-Z80" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christ776/Rust-Z80 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/christ776/Rust-Z80
[INFO] finished tweaking git repo https://github.com/christ776/Rust-Z80
[INFO] tweaked toml for git repo https://github.com/christ776/Rust-Z80 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/christ776/Rust-Z80 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96ea1c9273a3c4b9e1611003995c3845805cec6e79c87d9bacff97ddeef1e321
[INFO] running `Command { std: "docker" "start" "-a" "96ea1c9273a3c4b9e1611003995c3845805cec6e79c87d9bacff97ddeef1e321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ea1c9273a3c4b9e1611003995c3845805cec6e79c87d9bacff97ddeef1e321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ea1c9273a3c4b9e1611003995c3845805cec6e79c87d9bacff97ddeef1e321", kill_on_drop: false }`
[INFO] [stdout] 96ea1c9273a3c4b9e1611003995c3845805cec6e79c87d9bacff97ddeef1e321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f9d0e6260b48e44604276eaf5bff3e9e05982fcab6a2b566a6b060c9417650e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f9d0e6260b48e44604276eaf5bff3e9e05982fcab6a2b566a6b060c9417650e", kill_on_drop: false }`
[INFO] [stderr]     Checking Z80 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/z80.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut s = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg` is never read
[INFO] [stdout]    --> src/z80.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut reg = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]    --> src/z80.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:564:9
[INFO] [stdout]     |
[INFO] [stdout] 564 |         r = self.a as u8;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:757:11
[INFO] [stdout]     |
[INFO] [stdout] 757 |       let mut r = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]    --> src/z80.rs:801:11
[INFO] [stdout]     |
[INFO] [stdout] 801 |       let mut res: u16 = 0;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:802:11
[INFO] [stdout]     |
[INFO] [stdout] 802 |       let mut r: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/z80.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stdout]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]     --> src/z80.rs:1118:27
[INFO] [stdout]      |
[INFO] [stdout] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stdout]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]     --> src/z80.rs:1135:9
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let mut result = 0;
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `incr` is never read
[INFO] [stdout]     --> src/z80.rs:1297:11
[INFO] [stdout]      |
[INFO] [stdout] 1297 |       let mut incr = 0;
[INFO] [stdout]      |           ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/z80.rs:1298:11
[INFO] [stdout]      |
[INFO] [stdout] 1298 |       let mut r = 0;
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/z80.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut s = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg` is never read
[INFO] [stdout]    --> src/z80.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut reg = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]    --> src/z80.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:564:9
[INFO] [stdout]     |
[INFO] [stdout] 564 |         r = self.a as u8;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:757:11
[INFO] [stdout]     |
[INFO] [stdout] 757 |       let mut r = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]    --> src/z80.rs:801:11
[INFO] [stdout]     |
[INFO] [stdout] 801 |       let mut res: u16 = 0;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:802:11
[INFO] [stdout]     |
[INFO] [stdout] 802 |       let mut r: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/z80.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stdout]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]     --> src/z80.rs:1118:27
[INFO] [stdout]      |
[INFO] [stdout] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stdout]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]     --> src/z80.rs:1135:9
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let mut result = 0;
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `incr` is never read
[INFO] [stdout]     --> src/z80.rs:1297:11
[INFO] [stdout]      |
[INFO] [stdout] 1297 |       let mut incr = 0;
[INFO] [stdout]      |           ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/z80.rs:1298:11
[INFO] [stdout]      |
[INFO] [stdout] 1298 |       let mut r = 0;
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/z80.rs:560:9
[INFO] [stdout]     |
[INFO] [stdout] 560 |     let mut res = 0;
[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/z80.rs:560:9
[INFO] [stdout]     |
[INFO] [stdout] 560 |     let mut res = 0;
[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: crate `Z80` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `z80`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Z80` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `z80`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/z80.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/z80.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut s = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg` is never read
[INFO] [stdout]    --> src/z80.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut reg = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]    --> src/z80.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:564:9
[INFO] [stdout]     |
[INFO] [stdout] 564 |         r = self.a as u8;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:757:11
[INFO] [stdout]     |
[INFO] [stdout] 757 |       let mut r = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]    --> src/z80.rs:801:11
[INFO] [stdout]     |
[INFO] [stdout] 801 |       let mut res: u16 = 0;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:802:11
[INFO] [stdout]     |
[INFO] [stdout] 802 |       let mut r: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/z80.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stdout]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]     --> src/z80.rs:1118:27
[INFO] [stdout]      |
[INFO] [stdout] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stdout]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]     --> src/z80.rs:1135:9
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let mut result = 0;
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `incr` is never read
[INFO] [stdout]     --> src/z80.rs:1297:11
[INFO] [stdout]      |
[INFO] [stdout] 1297 |       let mut incr = 0;
[INFO] [stdout]      |           ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/z80.rs:1298:11
[INFO] [stdout]      |
[INFO] [stdout] 1298 |       let mut r = 0;
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/z80.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut s = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg` is never read
[INFO] [stdout]    --> src/z80.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut reg = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]    --> src/z80.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     let mut r = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:564:9
[INFO] [stdout]     |
[INFO] [stdout] 564 |         r = self.a as u8;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:757:11
[INFO] [stdout]     |
[INFO] [stdout] 757 |       let mut r = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]    --> src/z80.rs:801:11
[INFO] [stdout]     |
[INFO] [stdout] 801 |       let mut res: u16 = 0;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/z80.rs:802:11
[INFO] [stdout]     |
[INFO] [stdout] 802 |       let mut r: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/z80.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stdout]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]     --> src/z80.rs:1118:27
[INFO] [stdout]      |
[INFO] [stdout] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stdout]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]     --> src/z80.rs:1135:9
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let mut result = 0;
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `incr` is never read
[INFO] [stdout]     --> src/z80.rs:1297:11
[INFO] [stdout]      |
[INFO] [stdout] 1297 |       let mut incr = 0;
[INFO] [stdout]      |           ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/z80.rs:1298:11
[INFO] [stdout]      |
[INFO] [stdout] 1298 |       let mut r = 0;
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/z80.rs:560:9
[INFO] [stdout]     |
[INFO] [stdout] 560 |     let mut res = 0;
[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/z80.rs:560:9
[INFO] [stdout]     |
[INFO] [stdout] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "9f9d0e6260b48e44604276eaf5bff3e9e05982fcab6a2b566a6b060c9417650e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9d0e6260b48e44604276eaf5bff3e9e05982fcab6a2b566a6b060c9417650e", kill_on_drop: false }`
[INFO] [stdout] 9f9d0e6260b48e44604276eaf5bff3e9e05982fcab6a2b566a6b060c9417650e