[INFO] updating cached repository AberrantWolf/bugboy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AberrantWolf/bugboy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AberrantWolf/bugboy" "work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/AberrantWolf/bugboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/AberrantWolf/bugboy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AberrantWolf/bugboy" "work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/AberrantWolf/bugboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/AberrantWolf/bugboy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 67d00fed9d4544e924bdddc829d23c93baeea4be
[INFO] sha for GitHub repo AberrantWolf/bugboy: 67d00fed9d4544e924bdddc829d23c93baeea4be
[INFO] validating manifest of AberrantWolf/bugboy on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AberrantWolf/bugboy on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AberrantWolf/bugboy
[INFO] finished frobbing AberrantWolf/bugboy
[INFO] frobbed toml for AberrantWolf/bugboy written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/AberrantWolf/bugboy/Cargo.toml
[INFO] started frobbing AberrantWolf/bugboy
[INFO] finished frobbing AberrantWolf/bugboy
[INFO] frobbed toml for AberrantWolf/bugboy written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/AberrantWolf/bugboy/Cargo.toml
[INFO] crate AberrantWolf/bugboy has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AberrantWolf/bugboy against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/AberrantWolf/bugboy:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7b8be03c40a95cb20dfec1e8235ca1c59c781e0a09807c9d70d31dcd9b3bb664
[INFO] running `"docker" "start" "-a" "7b8be03c40a95cb20dfec1e8235ca1c59c781e0a09807c9d70d31dcd9b3bb664"`
[INFO] [stderr]     Checking bugboy v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `MemChange`
[INFO] [stderr]   --> src/gb_cpu.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tracelog::{MemChange, TraceLog};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]  --> src/gb_opcodes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/bugboy.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MemChange`
[INFO] [stderr]   --> src/gb_cpu.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tracelog::{MemChange, TraceLog};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]  --> src/gb_opcodes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/bugboy.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]  --> src/gb_opcodes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tracelog::TraceLog`
[INFO] [stderr]   --> src/traceboy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tracelog::TraceLog;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]  --> src/gb_opcodes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tracelog::TraceLog`
[INFO] [stderr]   --> src/traceboy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tracelog::TraceLog;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `OpCodeInfo`
[INFO] [stderr]  --> src/gb_opcodes.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct OpCodeInfo {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ROTATE_SHIFT`
[INFO] [stderr]    --> src/gb_opcodes.rs:263:5
[INFO] [stderr]     |
[INFO] [stderr] 263 |     ROTATE_SHIFT = 0b00,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BIT_CHECK`
[INFO] [stderr]    --> src/gb_opcodes.rs:264:5
[INFO] [stderr]     |
[INFO] [stderr] 264 |     BIT_CHECK = 0b01,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RESET`
[INFO] [stderr]    --> src/gb_opcodes.rs:265:5
[INFO] [stderr]     |
[INFO] [stderr] 265 |     RESET = 0b10,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SET`
[INFO] [stderr]    --> src/gb_opcodes.rs:266:5
[INFO] [stderr]     |
[INFO] [stderr] 266 |     SET = 0b11,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn from_u8(val: u8) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RLC`
[INFO] [stderr]    --> src/gb_opcodes.rs:287:5
[INFO] [stderr]     |
[INFO] [stderr] 287 |     RLC = 0b000,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RL`
[INFO] [stderr]    --> src/gb_opcodes.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 |     RL = 0b010,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RRC`
[INFO] [stderr]    --> src/gb_opcodes.rs:289:5
[INFO] [stderr]     |
[INFO] [stderr] 289 |     RRC = 0b001,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RR`
[INFO] [stderr]    --> src/gb_opcodes.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     RR = 0b011,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SLA`
[INFO] [stderr]    --> src/gb_opcodes.rs:291:5
[INFO] [stderr]     |
[INFO] [stderr] 291 |     SLA = 0b100,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SRA`
[INFO] [stderr]    --> src/gb_opcodes.rs:292:5
[INFO] [stderr]     |
[INFO] [stderr] 292 |     SRA = 0b101,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SRL`
[INFO] [stderr]    --> src/gb_opcodes.rs:293:5
[INFO] [stderr]     |
[INFO] [stderr] 293 |     SRL = 0b111,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SWAP`
[INFO] [stderr]    --> src/gb_opcodes.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     SWAP = 0b110,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:298:5
[INFO] [stderr]     |
[INFO] [stderr] 298 |     pub fn from_u8(val: u8) -> SecondOpAction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `A`
[INFO] [stderr]    --> src/gb_opcodes.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 |     A = 0b111,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `B`
[INFO] [stderr]    --> src/gb_opcodes.rs:320:5
[INFO] [stderr]     |
[INFO] [stderr] 320 |     B = 0b000,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `C`
[INFO] [stderr]    --> src/gb_opcodes.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     C = 0b001,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `D`
[INFO] [stderr]    --> src/gb_opcodes.rs:322:5
[INFO] [stderr]     |
[INFO] [stderr] 322 |     D = 0b010,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `E`
[INFO] [stderr]    --> src/gb_opcodes.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     E = 0b011,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `H`
[INFO] [stderr]    --> src/gb_opcodes.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     H = 0b100,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `L`
[INFO] [stderr]    --> src/gb_opcodes.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     L = 0b101,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `mHL`
[INFO] [stderr]    --> src/gb_opcodes.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     mHL = 0b110,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     pub fn from_u8(val: u8) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MemChangeDest`
[INFO] [stderr]  --> src/tracelog.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub enum MemChangeDest {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MemChange`
[INFO] [stderr]   --> src/tracelog.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct MemChange {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TraceLog`
[INFO] [stderr]   --> src/tracelog.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct TraceLog {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/tracelog.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new(op: OpCodes) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gb_cpu.rs:553:13
[INFO] [stderr]     |
[INFO] [stderr] 553 |         let mut log_item = TraceLog::new(op);
[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: struct is never constructed: `OpCodeInfo`
[INFO] [stderr]  --> src/gb_opcodes.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct OpCodeInfo {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ROTATE_SHIFT`
[INFO] [stderr]    --> src/gb_opcodes.rs:263:5
[INFO] [stderr]     |
[INFO] [stderr] 263 |     ROTATE_SHIFT = 0b00,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BIT_CHECK`
[INFO] [stderr]    --> src/gb_opcodes.rs:264:5
[INFO] [stderr]     |
[INFO] [stderr] 264 |     BIT_CHECK = 0b01,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RESET`
[INFO] [stderr]    --> src/gb_opcodes.rs:265:5
[INFO] [stderr]     |
[INFO] [stderr] 265 |     RESET = 0b10,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SET`
[INFO] [stderr]    --> src/gb_opcodes.rs:266:5
[INFO] [stderr]     |
[INFO] [stderr] 266 |     SET = 0b11,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn from_u8(val: u8) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RLC`
[INFO] [stderr]    --> src/gb_opcodes.rs:287:5
[INFO] [stderr]     |
[INFO] [stderr] 287 |     RLC = 0b000,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RL`
[INFO] [stderr]    --> src/gb_opcodes.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 |     RL = 0b010,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RRC`
[INFO] [stderr]    --> src/gb_opcodes.rs:289:5
[INFO] [stderr]     |
[INFO] [stderr] 289 |     RRC = 0b001,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RR`
[INFO] [stderr]    --> src/gb_opcodes.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     RR = 0b011,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SLA`
[INFO] [stderr]    --> src/gb_opcodes.rs:291:5
[INFO] [stderr]     |
[INFO] [stderr] 291 |     SLA = 0b100,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SRA`
[INFO] [stderr]    --> src/gb_opcodes.rs:292:5
[INFO] [stderr]     |
[INFO] [stderr] 292 |     SRA = 0b101,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SRL`
[INFO] [stderr]    --> src/gb_opcodes.rs:293:5
[INFO] [stderr]     |
[INFO] [stderr] 293 |     SRL = 0b111,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SWAP`
[INFO] [stderr]    --> src/gb_opcodes.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     SWAP = 0b110,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:298:5
[INFO] [stderr]     |
[INFO] [stderr] 298 |     pub fn from_u8(val: u8) -> SecondOpAction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `A`
[INFO] [stderr]    --> src/gb_opcodes.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 |     A = 0b111,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `B`
[INFO] [stderr]    --> src/gb_opcodes.rs:320:5
[INFO] [stderr]     |
[INFO] [stderr] 320 |     B = 0b000,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `C`
[INFO] [stderr]    --> src/gb_opcodes.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     C = 0b001,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `D`
[INFO] [stderr]    --> src/gb_opcodes.rs:322:5
[INFO] [stderr]     |
[INFO] [stderr] 322 |     D = 0b010,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `E`
[INFO] [stderr]    --> src/gb_opcodes.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     E = 0b011,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `H`
[INFO] [stderr]    --> src/gb_opcodes.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     H = 0b100,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `L`
[INFO] [stderr]    --> src/gb_opcodes.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     L = 0b101,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `mHL`
[INFO] [stderr]    --> src/gb_opcodes.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     mHL = 0b110,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_u8`
[INFO] [stderr]    --> src/gb_opcodes.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     pub fn from_u8(val: u8) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MemChangeDest`
[INFO] [stderr]  --> src/tracelog.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub enum MemChangeDest {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MemChange`
[INFO] [stderr]   --> src/tracelog.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct MemChange {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TraceLog`
[INFO] [stderr]   --> src/tracelog.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct TraceLog {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/tracelog.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new(op: OpCodes) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VBLANK_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const VBLANK_IF: u8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LCDC_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const LCDC_IF: u8 = 1 << 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TIMER_OVERFLOW_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const TIMER_OVERFLOW_IF: u8 = 1 << 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SERIAL_IO_COMPLETE_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const SERIAL_IO_COMPLETE_IF: u8 = 1 << 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `P10_P13_TERM_NEG_EDGE_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | const P10_P13_TERM_NEG_EDGE_IF: u8 = 1 << 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_memory_controller`
[INFO] [stderr]   --> src/gb_cpu.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn get_memory_controller(&self) -> Rc<RefCell<MemoryController>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_address_pair`
[INFO] [stderr]    --> src/gb_cpu.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn write_address_pair(&mut self, high: &mut u8, low: &mut u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IF_ADDR`
[INFO] [stderr]  --> src/gb_mem.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const IF_ADDR: RamAddress = RamAddress { val: 0xFF0Fu16 };
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SB_ADDR`
[INFO] [stderr]   --> src/gb_mem.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const SB_ADDR: RamAddress = RamAddress { val: 0xFF01u16 };
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `post_dec`
[INFO] [stderr]   --> src/gb_mem.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn post_dec(&mut self, val: u16) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MemorySection`
[INFO] [stderr]   --> src/gb_mem.rs:94:1
[INFO] [stderr]    |
[INFO] [stderr] 94 | enum MemorySection {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `OpCodeInfo`
[INFO] [stderr]  --> src/gb_opcodes.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct OpCodeInfo {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_address`
[INFO] [stderr]    --> src/gb_rom.rs:549:5
[INFO] [stderr]     |
[INFO] [stderr] 549 |     pub fn read_address(&self, addr: RamAddress) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegA`
[INFO] [stderr]  --> src/tracelog.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     RegA,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegB`
[INFO] [stderr]  --> src/tracelog.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     RegB,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegC`
[INFO] [stderr]  --> src/tracelog.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     RegC,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegD`
[INFO] [stderr]  --> src/tracelog.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     RegD,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegE`
[INFO] [stderr]   --> src/tracelog.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     RegE,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegF`
[INFO] [stderr]   --> src/tracelog.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     RegF,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegH`
[INFO] [stderr]   --> src/tracelog.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RegH,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegL`
[INFO] [stderr]   --> src/tracelog.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     RegL,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mem`
[INFO] [stderr]   --> src/tracelog.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Mem(u16),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `dest`
[INFO] [stderr]   --> src/tracelog.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     dest: MemChangeDest,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]   --> src/tracelog.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     value: u8,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `opcode`
[INFO] [stderr]   --> src/tracelog.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     opcode: OpCodes,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `changes`
[INFO] [stderr]   --> src/tracelog.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     changes: Vec<MemChange>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bus`
[INFO] [stderr]   --> src/bugboy.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     bus: Rc<RefCell<HardwareBus>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> src/gb_hw_bus.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         self.cycles == count;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gb_cpu.rs:553:13
[INFO] [stderr]     |
[INFO] [stderr] 553 |         let mut log_item = TraceLog::new(op);
[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: constant item is never used: `VBLANK_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const VBLANK_IF: u8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LCDC_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const LCDC_IF: u8 = 1 << 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TIMER_OVERFLOW_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const TIMER_OVERFLOW_IF: u8 = 1 << 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SERIAL_IO_COMPLETE_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const SERIAL_IO_COMPLETE_IF: u8 = 1 << 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `P10_P13_TERM_NEG_EDGE_IF`
[INFO] [stderr]   --> src/gb_cpu.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | const P10_P13_TERM_NEG_EDGE_IF: u8 = 1 << 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_memory_controller`
[INFO] [stderr]   --> src/gb_cpu.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn get_memory_controller(&self) -> Rc<RefCell<MemoryController>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_address_pair`
[INFO] [stderr]    --> src/gb_cpu.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn write_address_pair(&mut self, high: &mut u8, low: &mut u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IF_ADDR`
[INFO] [stderr]  --> src/gb_mem.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const IF_ADDR: RamAddress = RamAddress { val: 0xFF0Fu16 };
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SB_ADDR`
[INFO] [stderr]   --> src/gb_mem.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const SB_ADDR: RamAddress = RamAddress { val: 0xFF01u16 };
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MemorySection`
[INFO] [stderr]   --> src/gb_mem.rs:94:1
[INFO] [stderr]    |
[INFO] [stderr] 94 | enum MemorySection {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `OpCodeInfo`
[INFO] [stderr]  --> src/gb_opcodes.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct OpCodeInfo {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_address`
[INFO] [stderr]    --> src/gb_rom.rs:549:5
[INFO] [stderr]     |
[INFO] [stderr] 549 |     pub fn read_address(&self, addr: RamAddress) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegA`
[INFO] [stderr]  --> src/tracelog.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     RegA,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegB`
[INFO] [stderr]  --> src/tracelog.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     RegB,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegC`
[INFO] [stderr]  --> src/tracelog.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     RegC,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegD`
[INFO] [stderr]  --> src/tracelog.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     RegD,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegE`
[INFO] [stderr]   --> src/tracelog.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     RegE,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegF`
[INFO] [stderr]   --> src/tracelog.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     RegF,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegH`
[INFO] [stderr]   --> src/tracelog.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RegH,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegL`
[INFO] [stderr]   --> src/tracelog.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     RegL,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mem`
[INFO] [stderr]   --> src/tracelog.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Mem(u16),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `dest`
[INFO] [stderr]   --> src/tracelog.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     dest: MemChangeDest,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]   --> src/tracelog.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     value: u8,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `opcode`
[INFO] [stderr]   --> src/tracelog.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     opcode: OpCodes,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `changes`
[INFO] [stderr]   --> src/tracelog.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     changes: Vec<MemChange>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bus`
[INFO] [stderr]   --> src/bugboy.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     bus: Rc<RefCell<HardwareBus>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> src/gb_hw_bus.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         self.cycles == count;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `"docker" "inspect" "7b8be03c40a95cb20dfec1e8235ca1c59c781e0a09807c9d70d31dcd9b3bb664"`
[INFO] running `"docker" "rm" "-f" "7b8be03c40a95cb20dfec1e8235ca1c59c781e0a09807c9d70d31dcd9b3bb664"`
[INFO] [stdout] 7b8be03c40a95cb20dfec1e8235ca1c59c781e0a09807c9d70d31dcd9b3bb664