[INFO] updating cached repository https://github.com/christ776/Rust-Z80
[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] 197a4997ae34756d897644cff391d32b57b75c3e
[INFO] testing christ776/Rust-Z80 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrist776%2FRust-Z80" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christ776/Rust-Z80 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-8/source/Cargo.toml
[INFO] crate git repo https://github.com/christ776/Rust-Z80 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8f08284548eb1c1382b5d884e6702864bb376148b4ab43d9b6771ccf9abcb88
[INFO] running `"docker" "start" "-a" "c8f08284548eb1c1382b5d884e6702864bb376148b4ab43d9b6771ccf9abcb88"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling Z80 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: crate `Z80` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `z80`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `"docker" "inspect" "c8f08284548eb1c1382b5d884e6702864bb376148b4ab43d9b6771ccf9abcb88"`
[INFO] running `"docker" "rm" "-f" "c8f08284548eb1c1382b5d884e6702864bb376148b4ab43d9b6771ccf9abcb88"`
[INFO] [stdout] c8f08284548eb1c1382b5d884e6702864bb376148b4ab43d9b6771ccf9abcb88
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 161e6cc16cce81970e77323538dc431bc30be40457aae79ba51d5561264ef455
[INFO] running `"docker" "start" "-a" "161e6cc16cce81970e77323538dc431bc30be40457aae79ba51d5561264ef455"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling Z80 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: crate `Z80` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `z80`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Z80` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `z80`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "161e6cc16cce81970e77323538dc431bc30be40457aae79ba51d5561264ef455"`
[INFO] running `"docker" "rm" "-f" "161e6cc16cce81970e77323538dc431bc30be40457aae79ba51d5561264ef455"`
[INFO] [stdout] 161e6cc16cce81970e77323538dc431bc30be40457aae79ba51d5561264ef455
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 2f99c9cb5b57b7a1afee7d570ae3890d8f37aeaf5c1510f21d49fb6ed9384242
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2f99c9cb5b57b7a1afee7d570ae3890d8f37aeaf5c1510f21d49fb6ed9384242"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: crate `Z80` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `z80`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Z80` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `z80`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     ((self.a as u8 as u16) << 8 as u16 | self.flags as u8 as u16)
[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 block return value
[INFO] [stderr]    --> src/z80.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     ((self.b as u8 as u16) << 8 as u16 | self.c as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/z80.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     ((self.d as u8 as u16) << 8 as u16 | self.e as u8 as u16)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:309:9
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/z80.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |     let mut s = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/z80.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |     let mut reg = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]    --> src/z80.rs:561:9
[INFO] [stderr]     |
[INFO] [stderr] 561 |     let mut r = 0;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         r = self.a as u8;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:757:11
[INFO] [stderr]     |
[INFO] [stderr] 757 |       let mut r = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/z80.rs:801:11
[INFO] [stderr]     |
[INFO] [stderr] 801 |       let mut res: u16 = 0;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/z80.rs:802:11
[INFO] [stderr]     |
[INFO] [stderr] 802 |       let mut r: u8 = 0;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/z80.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |   pub fn sub_n(&mut self, op: u8) {
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]     --> src/z80.rs:1118:27
[INFO] [stderr]      |
[INFO] [stderr] 1118 |   pub fn xor_r(&mut self, op: u8) {
[INFO] [stderr]      |                           ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]     --> src/z80.rs:1135:9
[INFO] [stderr]      |
[INFO] [stderr] 1135 |     let mut result = 0;
[INFO] [stderr]      |         ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `incr` is never read
[INFO] [stderr]     --> src/z80.rs:1297:11
[INFO] [stderr]      |
[INFO] [stderr] 1297 |       let mut incr = 0;
[INFO] [stderr]      |           ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]     --> src/z80.rs:1298:11
[INFO] [stderr]      |
[INFO] [stderr] 1298 |       let mut r = 0;
[INFO] [stderr]      |           ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/z80.rs:560:9
[INFO] [stderr]     |
[INFO] [stderr] 560 |     let mut res = 0;
[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: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/Z80-a643ce1901e0748d
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/Z80-34dba34ac7b7da90
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_opcodes-f7531213ecf97b11
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_opcodes::test_cp_r ... ok
[INFO] [stdout] test test_opcodes::test_call_cc_ret_cc ... ok
[INFO] [stdout] test test_opcodes::test_ld_ihl_n ... ok
[INFO] [stdout] test test_opcodes::test_push_pop ... ok
[INFO] [stdout] test test_opcodes::test_add_r ... ok
[INFO] [stdout] test test_opcodes::test_add_r_2 ... ok
[INFO] [stdout] test test_opcodes::test_ld_ihl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests Z80
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2f99c9cb5b57b7a1afee7d570ae3890d8f37aeaf5c1510f21d49fb6ed9384242"`
[INFO] running `"docker" "rm" "-f" "2f99c9cb5b57b7a1afee7d570ae3890d8f37aeaf5c1510f21d49fb6ed9384242"`
[INFO] [stdout] 2f99c9cb5b57b7a1afee7d570ae3890d8f37aeaf5c1510f21d49fb6ed9384242