[INFO] cloning repository https://github.com/0xhoussam/lc-3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xhoussam/lc-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhoussam%2Flc-3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhoussam%2Flc-3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6513f4e04267c800c11d3633179576fc57713be8
[INFO] testing 0xhoussam/lc-3 against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhoussam%2Flc-3" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xhoussam/lc-3
[INFO] finished tweaking git repo https://github.com/0xhoussam/lc-3
[INFO] tweaked toml for git repo https://github.com/0xhoussam/lc-3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xhoussam/lc-3 on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xhoussam/lc-3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitfield-struct v0.7.0
[INFO] [stderr]   Downloaded quote v1.0.36
[INFO] [stderr]   Downloaded unicode-ident v1.0.12
[INFO] [stderr]   Downloaded proc-macro2 v1.0.85
[INFO] [stderr]   Downloaded syn v2.0.66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecfd089d3c9e36166fe248982c68d6272ad5b8e47b58b77d24beb8563876e3df
[INFO] running `Command { std: "docker" "start" "-a" "ecfd089d3c9e36166fe248982c68d6272ad5b8e47b58b77d24beb8563876e3df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecfd089d3c9e36166fe248982c68d6272ad5b8e47b58b77d24beb8563876e3df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfd089d3c9e36166fe248982c68d6272ad5b8e47b58b77d24beb8563876e3df", kill_on_drop: false }`
[INFO] [stdout] ecfd089d3c9e36166fe248982c68d6272ad5b8e47b58b77d24beb8563876e3df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79f500c5bb497220501d022169aa53dfafe54aca6168036dc9413cf1eac4fd14
[INFO] running `Command { std: "docker" "start" "-a" "79f500c5bb497220501d022169aa53dfafe54aca6168036dc9413cf1eac4fd14", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling bitfield-struct v0.7.0
[INFO] [stderr]    Compiling lc-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `machine`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let machine = vm::machine::Machine::new();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated constants are never used
[INFO] [stdout]   --> src/vm/cpu.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Cpu {
[INFO] [stdout]    | -------- associated constants in this implementation
[INFO] [stdout] 16 |     pub const R0: usize = 0;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 17 |     pub const R1: usize = 1;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 18 |     pub const R2: usize = 2;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 19 |     pub const R3: usize = 3;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 20 |     pub const R4: usize = 4;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 21 |     pub const R5: usize = 5;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 22 |     pub const R6: usize = 6;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 23 |     pub const R7: usize = 7;
[INFO] [stdout]    |               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `exec_instruction`, `sign_extend`, and `update_flag` are never used
[INFO] [stdout]    --> src/vm/cpu.rs:36:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Cpu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  36 |     pub fn exec_instruction(&mut self, inst: u16, mem: &mut [u16; 1 << 16]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     fn sign_extend(mut num: u16, bit_count: u16) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn update_flag(&mut self, reg: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FL_POS` is never used
[INFO] [stdout]    --> src/vm/cpu.rs:236:7
[INFO] [stdout]     |
[INFO] [stdout] 236 | const FL_POS: u16 = 1 << 0;
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FL_NEG` is never used
[INFO] [stdout]    --> src/vm/cpu.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const FL_NEG: u16 = 1 << 2;
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cpu` and `mem` are never read
[INFO] [stdout]  --> src/vm/machine.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Machine {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 4 |     cpu: Cpu,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     mem: [u16; 1 << 16],
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec` is never used
[INFO] [stdout]   --> src/vm/machine.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Machine {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn exec(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SysCall` is never used
[INFO] [stdout]  --> src/vm/syscall.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum SysCall {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "79f500c5bb497220501d022169aa53dfafe54aca6168036dc9413cf1eac4fd14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f500c5bb497220501d022169aa53dfafe54aca6168036dc9413cf1eac4fd14", kill_on_drop: false }`
[INFO] [stdout] 79f500c5bb497220501d022169aa53dfafe54aca6168036dc9413cf1eac4fd14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 365916c9e1b3f40990f6e0d6abc0ec9012ff03c911756407ce4c6ca799ad9222
[INFO] running `Command { std: "docker" "start" "-a" "365916c9e1b3f40990f6e0d6abc0ec9012ff03c911756407ce4c6ca799ad9222", kill_on_drop: false }`
[INFO] [stderr]    Compiling lc-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `machine`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let machine = vm::machine::Machine::new();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated constants are never used
[INFO] [stdout]   --> src/vm/cpu.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Cpu {
[INFO] [stdout]    | -------- associated constants in this implementation
[INFO] [stdout] 16 |     pub const R0: usize = 0;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 17 |     pub const R1: usize = 1;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 18 |     pub const R2: usize = 2;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 19 |     pub const R3: usize = 3;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 20 |     pub const R4: usize = 4;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 21 |     pub const R5: usize = 5;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 22 |     pub const R6: usize = 6;
[INFO] [stdout]    |               ^^
[INFO] [stdout] 23 |     pub const R7: usize = 7;
[INFO] [stdout]    |               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `exec_instruction`, `sign_extend`, and `update_flag` are never used
[INFO] [stdout]    --> src/vm/cpu.rs:36:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Cpu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  36 |     pub fn exec_instruction(&mut self, inst: u16, mem: &mut [u16; 1 << 16]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     fn sign_extend(mut num: u16, bit_count: u16) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn update_flag(&mut self, reg: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FL_POS` is never used
[INFO] [stdout]    --> src/vm/cpu.rs:236:7
[INFO] [stdout]     |
[INFO] [stdout] 236 | const FL_POS: u16 = 1 << 0;
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FL_NEG` is never used
[INFO] [stdout]    --> src/vm/cpu.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const FL_NEG: u16 = 1 << 2;
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cpu` and `mem` are never read
[INFO] [stdout]  --> src/vm/machine.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Machine {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 4 |     cpu: Cpu,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     mem: [u16; 1 << 16],
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec` is never used
[INFO] [stdout]   --> src/vm/machine.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Machine {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn exec(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SysCall` is never used
[INFO] [stdout]  --> src/vm/syscall.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum SysCall {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "365916c9e1b3f40990f6e0d6abc0ec9012ff03c911756407ce4c6ca799ad9222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365916c9e1b3f40990f6e0d6abc0ec9012ff03c911756407ce4c6ca799ad9222", kill_on_drop: false }`
[INFO] [stdout] 365916c9e1b3f40990f6e0d6abc0ec9012ff03c911756407ce4c6ca799ad9222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 167183e9ba2a33af42eb4d529e93f02ef5d47c2ed4ba83ac9d282f5dc3d0e7a0
[INFO] running `Command { std: "docker" "start" "-a" "167183e9ba2a33af42eb4d529e93f02ef5d47c2ed4ba83ac9d282f5dc3d0e7a0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `machine`
[INFO] [stderr]  --> src/main.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let machine = vm::machine::Machine::new();
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated constants are never used
[INFO] [stderr]   --> src/vm/cpu.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl Cpu {
[INFO] [stderr]    | -------- associated constants in this implementation
[INFO] [stderr] 16 |     pub const R0: usize = 0;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 17 |     pub const R1: usize = 1;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 18 |     pub const R2: usize = 2;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 19 |     pub const R3: usize = 3;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 20 |     pub const R4: usize = 4;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 21 |     pub const R5: usize = 5;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 22 |     pub const R6: usize = 6;
[INFO] [stderr]    |               ^^
[INFO] [stderr] 23 |     pub const R7: usize = 7;
[INFO] [stderr]    |               ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `exec_instruction`, `sign_extend`, and `update_flag` are never used
[INFO] [stderr]    --> src/vm/cpu.rs:36:12
[INFO] [stderr]     |
[INFO] [stderr]  28 | impl Cpu {
[INFO] [stderr]     | -------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  36 |     pub fn exec_instruction(&mut self, inst: u16, mem: &mut [u16; 1 << 16]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 218 |     fn sign_extend(mut num: u16, bit_count: u16) -> u16 {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 225 |     fn update_flag(&mut self, reg: usize) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FL_POS` is never used
[INFO] [stderr]    --> src/vm/cpu.rs:236:7
[INFO] [stderr]     |
[INFO] [stderr] 236 | const FL_POS: u16 = 1 << 0;
[INFO] [stderr]     |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FL_NEG` is never used
[INFO] [stderr]    --> src/vm/cpu.rs:238:7
[INFO] [stderr]     |
[INFO] [stderr] 238 | const FL_NEG: u16 = 1 << 2;
[INFO] [stderr]     |       ^^^^^^
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: fields `cpu` and `mem` are never read
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/vm/machine.rs:4:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 3 | pub struct Machine {
[INFO] [stdout] 
[INFO] [stderr]   |            ------- fields in this struct
[INFO] [stderr] 4 |     cpu: Cpu,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 5 |     mem: [u16; 1 << 16],
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `exec` is never used
[INFO] [stderr]   --> src/vm/machine.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr]  8 | impl Machine {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn exec(&mut self) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `SysCall` is never used
[INFO] [stderr]  --> src/vm/syscall.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum SysCall {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lc-3` (bin "lc-3" test) generated 8 warnings (run `cargo fix --bin "lc-3" -p lc-3 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lc_3-d5ec797e03c9eaf1)
[INFO] running `Command { std: "docker" "inspect" "167183e9ba2a33af42eb4d529e93f02ef5d47c2ed4ba83ac9d282f5dc3d0e7a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "167183e9ba2a33af42eb4d529e93f02ef5d47c2ed4ba83ac9d282f5dc3d0e7a0", kill_on_drop: false }`
[INFO] [stdout] 167183e9ba2a33af42eb4d529e93f02ef5d47c2ed4ba83ac9d282f5dc3d0e7a0
