[INFO] cloning repository https://github.com/wthornton18/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wthornton18/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwthornton18%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwthornton18%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f727cccd62c158c6ba8dff0913992864e2bddf1
[INFO] linting wthornton18/rlox against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwthornton18%2Frlox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wthornton18/rlox
[INFO] finished tweaking git repo https://github.com/wthornton18/rlox
[INFO] tweaked toml for git repo https://github.com/wthornton18/rlox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wthornton18/rlox on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wthornton18/rlox 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef9a16a4ab21993fde04d73482fce2503d160e890aee32be21980e4ffd6f8e24
[INFO] running `Command { std: "docker" "start" "-a" "ef9a16a4ab21993fde04d73482fce2503d160e890aee32be21980e4ffd6f8e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef9a16a4ab21993fde04d73482fce2503d160e890aee32be21980e4ffd6f8e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9a16a4ab21993fde04d73482fce2503d160e890aee32be21980e4ffd6f8e24", kill_on_drop: false }`
[INFO] [stdout] ef9a16a4ab21993fde04d73482fce2503d160e890aee32be21980e4ffd6f8e24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10a900604ce9cec5ff1de10a9d584717730a09da064d1d03e44adc0fff495294
[INFO] running `Command { std: "docker" "start" "-a" "10a900604ce9cec5ff1de10a9d584717730a09da064d1d03e44adc0fff495294", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Object::*`
[INFO] [stdout]   --> src/vm/core.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         use Object::*;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Object::*`
[INFO] [stdout]   --> src/vm/core.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         use Object::*;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]   --> src/compiler/core.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let previous_token = self.previous_token.clone();
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]   --> src/compiler/core.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if let Some(token) = self.previous_token.clone() {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]   --> src/compiler/core.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let previous_token = self.previous_token.clone();
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]   --> src/compiler/core.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if let Some(token) = self.previous_token.clone() {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | /         match self.previous_token {
[INFO] [stdout] 113 | |             Some(Token {
[INFO] [stdout] 114 | |                 pos, length, line, ..
[INFO] [stdout] 115 | |             }) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |             None => {}
[INFO] [stdout] 132 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 112 ~         if let Some(Token {
[INFO] [stdout] 113 +                 pos, length, line, ..
[INFO] [stdout] 114 +             }) = self.previous_token {
[INFO] [stdout] 115 +             let num = self.source[pos..(pos + length)]
[INFO] [stdout] 116 +                 .iter()
[INFO] [stdout] 117 +                 .collect::<String>()
[INFO] [stdout] 118 +                 .parse::<f64>();
[INFO] [stdout] 119 +             let num = match num {
[INFO] [stdout] 120 +                 Ok(num) => num,
[INFO] [stdout] 121 +                 Err(_) => {
[INFO] [stdout] 122 +                     self.error("Failed to parse number, defaulting to 0");
[INFO] [stdout] 123 +                     0 as f64
[INFO] [stdout] 124 +                 }
[INFO] [stdout] 125 +             };
[INFO] [stdout] 126 + 
[INFO] [stdout] 127 +             let idx = self.constants.push(Value::Float(num));
[INFO] [stdout] 128 +             self.program.push((OpConstant(idx), line))
[INFO] [stdout] 129 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | /         match self.previous_token {
[INFO] [stdout] 113 | |             Some(Token {
[INFO] [stdout] 114 | |                 pos, length, line, ..
[INFO] [stdout] 115 | |             }) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |             None => {}
[INFO] [stdout] 132 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 112 ~         if let Some(Token {
[INFO] [stdout] 113 +                 pos, length, line, ..
[INFO] [stdout] 114 +             }) = self.previous_token {
[INFO] [stdout] 115 +             let num = self.source[pos..(pos + length)]
[INFO] [stdout] 116 +                 .iter()
[INFO] [stdout] 117 +                 .collect::<String>()
[INFO] [stdout] 118 +                 .parse::<f64>();
[INFO] [stdout] 119 +             let num = match num {
[INFO] [stdout] 120 +                 Ok(num) => num,
[INFO] [stdout] 121 +                 Err(_) => {
[INFO] [stdout] 122 +                     self.error("Failed to parse number, defaulting to 0");
[INFO] [stdout] 123 +                     0 as f64
[INFO] [stdout] 124 +                 }
[INFO] [stdout] 125 +             };
[INFO] [stdout] 126 + 
[INFO] [stdout] 127 +             let idx = self.constants.push(Value::Float(num));
[INFO] [stdout] 128 +             self.program.push((OpConstant(idx), line))
[INFO] [stdout] 129 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:139:30
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if let Some(token) = self.previous_token.clone() {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | /         match self.previous_token {
[INFO] [stdout] 153 | |             Some(Token {
[INFO] [stdout] 154 | |                 pos, length, line, ..
[INFO] [stdout] 155 | |             }) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 167 | |             None => {}
[INFO] [stdout] 168 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 152 ~         if let Some(Token {
[INFO] [stdout] 153 +                 pos, length, line, ..
[INFO] [stdout] 154 +             }) = self.previous_token {
[INFO] [stdout] 155 +             let string = self.source[(pos + 1)..(pos + length - 2)]
[INFO] [stdout] 156 +                 .iter()
[INFO] [stdout] 157 +                 .collect::<String>();
[INFO] [stdout] 158 +             self.strings.push(string);
[INFO] [stdout] 159 + 
[INFO] [stdout] 160 +             let idx = self
[INFO] [stdout] 161 +                 .constants
[INFO] [stdout] 162 +                 .push(Value::new_string(self.strings.len() - 2));
[INFO] [stdout] 163 + 
[INFO] [stdout] 164 +             self.program.push((OpConstant(idx), line))
[INFO] [stdout] 165 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:139:30
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if let Some(token) = self.previous_token.clone() {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | /         match self.previous_token {
[INFO] [stdout] 153 | |             Some(Token {
[INFO] [stdout] 154 | |                 pos, length, line, ..
[INFO] [stdout] 155 | |             }) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 167 | |             None => {}
[INFO] [stdout] 168 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 152 ~         if let Some(Token {
[INFO] [stdout] 153 +                 pos, length, line, ..
[INFO] [stdout] 154 +             }) = self.previous_token {
[INFO] [stdout] 155 +             let string = self.source[(pos + 1)..(pos + length - 2)]
[INFO] [stdout] 156 +                 .iter()
[INFO] [stdout] 157 +                 .collect::<String>();
[INFO] [stdout] 158 +             self.strings.push(string);
[INFO] [stdout] 159 + 
[INFO] [stdout] 160 +             let idx = self
[INFO] [stdout] 161 +                 .constants
[INFO] [stdout] 162 +                 .push(Value::new_string(self.strings.len() - 2));
[INFO] [stdout] 163 + 
[INFO] [stdout] 164 +             self.program.push((OpConstant(idx), line))
[INFO] [stdout] 165 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/compiler/core.rs:178:74
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let current_token: OTokenResult = self.current_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                                                          ^^^^^^^^^ help: replace the closure with the tuple variant itself: `Ok`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]     = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:178:43
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let current_token: OTokenResult = self.current_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.current_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/compiler/core.rs:178:74
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let current_token: OTokenResult = self.current_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                                                          ^^^^^^^^^ help: replace the closure with the tuple variant itself: `Ok`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]     = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:178:43
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let current_token: OTokenResult = self.current_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.current_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/compiler/core.rs:192:76
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let previous_token: OTokenResult = self.previous_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                                                            ^^^^^^^^^ help: replace the closure with the tuple variant itself: `Ok`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:192:44
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let previous_token: OTokenResult = self.previous_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/compiler/core.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 | /                 if t.token_type == expected_token_type {
[INFO] [stdout] 200 | |                     self.advance();
[INFO] [stdout] 201 | |                     return;
[INFO] [stdout] 202 | |                 };
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 198 ~             Some(t)
[INFO] [stdout] 199 ~                 if t.token_type == expected_token_type => {
[INFO] [stdout] 200 |                     self.advance();
[INFO] [stdout] 201 |                     return;
[INFO] [stdout] 202 ~                 };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 | /         match self.current_token {
[INFO] [stdout] 198 | |             Some(t) => {
[INFO] [stdout] 199 | |                 if t.token_type == expected_token_type {
[INFO] [stdout] 200 | |                     self.advance();
[INFO] [stdout] ...   |
[INFO] [stdout] 204 | |             None => {}
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 197 ~         if let Some(t) = self.current_token {
[INFO] [stdout] 198 +             if t.token_type == expected_token_type {
[INFO] [stdout] 199 +                 self.advance();
[INFO] [stdout] 200 +                 return;
[INFO] [stdout] 201 +             };
[INFO] [stdout] 202 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/compiler/core.rs:192:76
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let previous_token: OTokenResult = self.previous_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                                                            ^^^^^^^^^ help: replace the closure with the tuple variant itself: `Ok`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<Token>` which implements the `Copy` trait
[INFO] [stdout]    --> src/compiler/core.rs:192:44
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let previous_token: OTokenResult = self.previous_token.clone().map(|t| Ok(t));
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.previous_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/compiler/core.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 | /                 if t.token_type == expected_token_type {
[INFO] [stdout] 200 | |                     self.advance();
[INFO] [stdout] 201 | |                     return;
[INFO] [stdout] 202 | |                 };
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 198 ~             Some(t)
[INFO] [stdout] 199 ~                 if t.token_type == expected_token_type => {
[INFO] [stdout] 200 |                     self.advance();
[INFO] [stdout] 201 |                     return;
[INFO] [stdout] 202 ~                 };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/compiler/core.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 | /         match self.current_token {
[INFO] [stdout] 198 | |             Some(t) => {
[INFO] [stdout] 199 | |                 if t.token_type == expected_token_type {
[INFO] [stdout] 200 | |                     self.advance();
[INFO] [stdout] ...   |
[INFO] [stdout] 204 | |             None => {}
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 197 ~         if let Some(t) = self.current_token {
[INFO] [stdout] 198 +             if t.token_type == expected_token_type {
[INFO] [stdout] 199 +                 self.advance();
[INFO] [stdout] 200 +                 return;
[INFO] [stdout] 201 +             };
[INFO] [stdout] 202 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]   --> src/compiler/types.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Some(Err(t)) => (format!(""), t.line),
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout]    = note: `#[warn(clippy::useless_format)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]   --> src/compiler/types.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Some(Err(t)) => (format!(""), t.line),
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout]    = note: `#[warn(clippy::useless_format)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same prefix: `Op`
[INFO] [stdout]   --> src/program.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | / pub enum OpCode {
[INFO] [stdout]  3 | |     OpReturn,
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     OpNotEqual,
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: remove the prefixes and use full paths to the variants instead of glob imports
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]    = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same prefix: `Op`
[INFO] [stdout]   --> src/program.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | / pub enum OpCode {
[INFO] [stdout]  3 | |     OpReturn,
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     OpNotEqual,
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: remove the prefixes and use full paths to the variants instead of glob imports
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]    = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Value` which implements the `Copy` trait
[INFO] [stdout]   --> src/stack.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |             Ok(self.arr[self.sp].clone())
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.arr[self.sp]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Value` which implements the `Copy` trait
[INFO] [stdout]   --> src/stack.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |             Ok(self.arr[self.sp].clone())
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.arr[self.sp]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stdout]    --> src/tokenizer.rs:190:16
[INFO] [stdout]     |
[INFO] [stdout] 190 |         if let Some(_) = token {
[INFO] [stdout]     |         -------^^^^^^^-------- help: try: `if token.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 |         while !self.eof_n(n + 1) && self.peak_n(n + 1).is_digit(10) {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak_n(n + 1).is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]     = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:265:41
[INFO] [stdout]     |
[INFO] [stdout] 265 |             while !self.eof_n(n + 1) && self.peak_n(n + 1).is_digit(10) {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak_n(n + 1).is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/tokenizer.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |         return Some(unrecognised_token);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 338 -         return Some(unrecognised_token);
[INFO] [stdout] 338 +         Some(unrecognised_token)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:323:12
[INFO] [stdout]     |
[INFO] [stdout] 323 |         if self.peak().is_digit(10) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak().is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stdout]    --> src/tokenizer.rs:190:16
[INFO] [stdout]     |
[INFO] [stdout] 190 |         if let Some(_) = token {
[INFO] [stdout]     |         -------^^^^^^^-------- help: try: `if token.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 |         while !self.eof_n(n + 1) && self.peak_n(n + 1).is_digit(10) {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak_n(n + 1).is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]     = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/vm/core.rs:101:29
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     let b = !(self.strings[a].len() == 0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(self.strings[a].len() != 0)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:265:41
[INFO] [stdout]     |
[INFO] [stdout] 265 |             while !self.eof_n(n + 1) && self.peak_n(n + 1).is_digit(10) {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak_n(n + 1).is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]    --> src/vm/core.rs:56:9
[INFO] [stdout]     |
[INFO] [stdout]  56 | /         let res = match op.0 {
[INFO] [stdout]  57 | |             OpConstant(idx) => {
[INFO] [stdout]  58 | |                 self.stack.push(self.constants[idx].clone())?;
[INFO] [stdout] ...   |
[INFO] [stdout] 137 | |         };
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout]     = note: `#[warn(clippy::let_unit_value)]` on by default
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]     |
[INFO] [stdout]  56 -         let res = match op.0 {
[INFO] [stdout]  56 +         match op.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Value` which implements the `Copy` trait
[INFO] [stdout]   --> src/vm/core.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 self.stack.push(self.constants[idx].clone())?;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.constants[idx]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `.extend(_.chars())`
[INFO] [stdout]   --> src/vm/core.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |                     new_string.extend(self.strings[b].chars());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `new_string.push_str(&self.strings[b])`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_extend_chars
[INFO] [stdout]    = note: `#[warn(clippy::string_extend_chars)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/tokenizer.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |         return Some(unrecognised_token);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 338 -         return Some(unrecognised_token);
[INFO] [stdout] 338 +         Some(unrecognised_token)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/vm/core.rs:101:31
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     let b = !(self.strings[a].len() == 0);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.strings[a].is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]    --> src/tokenizer.rs:323:12
[INFO] [stdout]     |
[INFO] [stdout] 323 |         if self.peak().is_digit(10) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.peak().is_ascii_digit()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | /         match value.0 {
[INFO] [stdout]  9 | |             _ => Self {
[INFO] [stdout] 10 | |                 msg: "Addition err".to_string(),
[INFO] [stdout] 11 | |                 error: Runtime,
[INFO] [stdout] 12 | |             },
[INFO] [stdout] 13 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout]    = note: `#[warn(clippy::match_single_binding)]` on by default
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout]  8 ~         Self {
[INFO] [stdout]  9 +             msg: "Addition err".to_string(),
[INFO] [stdout] 10 +             error: Runtime,
[INFO] [stdout] 11 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         match value.0 {
[INFO] [stdout] 21 | |             _ => Self {
[INFO] [stdout] 22 | |                 msg: "Subtraction err".to_string(),
[INFO] [stdout] 23 | |                 error: Runtime,
[INFO] [stdout] 24 | |             },
[INFO] [stdout] 25 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 20 ~         Self {
[INFO] [stdout] 21 +             msg: "Subtraction err".to_string(),
[INFO] [stdout] 22 +             error: Runtime,
[INFO] [stdout] 23 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | /         match value.0 {
[INFO] [stdout] 43 | |             _ => Self {
[INFO] [stdout] 44 | |                 msg: "Multiply err".to_string(),
[INFO] [stdout] 45 | |                 error: Runtime,
[INFO] [stdout] 46 | |             },
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 42 ~         Self {
[INFO] [stdout] 43 +             msg: "Multiply err".to_string(),
[INFO] [stdout] 44 +             error: Runtime,
[INFO] [stdout] 45 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         match value.0 {
[INFO] [stdout] 55 | |             _ => Self {
[INFO] [stdout] 56 | |                 msg: "Negation err".to_string(),
[INFO] [stdout] 57 | |                 error: Runtime,
[INFO] [stdout] 58 | |             },
[INFO] [stdout] 59 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 54 ~         Self {
[INFO] [stdout] 55 +             msg: "Negation err".to_string(),
[INFO] [stdout] 56 +             error: Runtime,
[INFO] [stdout] 57 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         return Ok(());
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 31 -         return Ok(());
[INFO] [stdout] 31 +         Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         return Err(());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 37 -         return Err(());
[INFO] [stdout] 37 +         Err(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Chars<'_>`
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let chars = source_code.chars().into_iter().collect::<Vec<_>>();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `source_code.chars()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]    = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             println!("")
[INFO] [stdout]    |             ^^^^^^^^^--^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove the empty string
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout]    = note: `#[warn(clippy::println_empty_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/vm/core.rs:101:29
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     let b = !(self.strings[a].len() == 0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(self.strings[a].len() != 0)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]    --> src/vm/core.rs:56:9
[INFO] [stdout]     |
[INFO] [stdout]  56 | /         let res = match op.0 {
[INFO] [stdout]  57 | |             OpConstant(idx) => {
[INFO] [stdout]  58 | |                 self.stack.push(self.constants[idx].clone())?;
[INFO] [stdout] ...   |
[INFO] [stdout] 137 | |         };
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout]     = note: `#[warn(clippy::let_unit_value)]` on by default
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]     |
[INFO] [stdout]  56 -         let res = match op.0 {
[INFO] [stdout]  56 +         match op.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Value` which implements the `Copy` trait
[INFO] [stdout]   --> src/vm/core.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 self.stack.push(self.constants[idx].clone())?;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.constants[idx]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `.extend(_.chars())`
[INFO] [stdout]   --> src/vm/core.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |                     new_string.extend(self.strings[b].chars());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `new_string.push_str(&self.strings[b])`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_extend_chars
[INFO] [stdout]    = note: `#[warn(clippy::string_extend_chars)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/vm/core.rs:101:31
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     let b = !(self.strings[a].len() == 0);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.strings[a].is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | /         match value.0 {
[INFO] [stdout]  9 | |             _ => Self {
[INFO] [stdout] 10 | |                 msg: "Addition err".to_string(),
[INFO] [stdout] 11 | |                 error: Runtime,
[INFO] [stdout] 12 | |             },
[INFO] [stdout] 13 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout]    = note: `#[warn(clippy::match_single_binding)]` on by default
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout]  8 ~         Self {
[INFO] [stdout]  9 +             msg: "Addition err".to_string(),
[INFO] [stdout] 10 +             error: Runtime,
[INFO] [stdout] 11 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         match value.0 {
[INFO] [stdout] 21 | |             _ => Self {
[INFO] [stdout] 22 | |                 msg: "Subtraction err".to_string(),
[INFO] [stdout] 23 | |                 error: Runtime,
[INFO] [stdout] 24 | |             },
[INFO] [stdout] 25 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 20 ~         Self {
[INFO] [stdout] 21 +             msg: "Subtraction err".to_string(),
[INFO] [stdout] 22 +             error: Runtime,
[INFO] [stdout] 23 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | /         match value.0 {
[INFO] [stdout] 43 | |             _ => Self {
[INFO] [stdout] 44 | |                 msg: "Multiply err".to_string(),
[INFO] [stdout] 45 | |                 error: Runtime,
[INFO] [stdout] 46 | |             },
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 42 ~         Self {
[INFO] [stdout] 43 +             msg: "Multiply err".to_string(),
[INFO] [stdout] 44 +             error: Runtime,
[INFO] [stdout] 45 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/vm/value_err.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         match value.0 {
[INFO] [stdout] 55 | |             _ => Self {
[INFO] [stdout] 56 | |                 msg: "Negation err".to_string(),
[INFO] [stdout] 57 | |                 error: Runtime,
[INFO] [stdout] 58 | |             },
[INFO] [stdout] 59 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout] help: consider using the match body instead
[INFO] [stdout]    |
[INFO] [stdout] 54 ~         Self {
[INFO] [stdout] 55 +             msg: "Negation err".to_string(),
[INFO] [stdout] 56 +             error: Runtime,
[INFO] [stdout] 57 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         return Ok(());
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 31 -         return Ok(());
[INFO] [stdout] 31 +         Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         return Err(());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 37 -         return Err(());
[INFO] [stdout] 37 +         Err(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Chars<'_>`
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let chars = source_code.chars().into_iter().collect::<Vec<_>>();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `source_code.chars()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]    = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             println!("")
[INFO] [stdout]    |             ^^^^^^^^^--^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove the empty string
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout]    = note: `#[warn(clippy::println_empty_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "10a900604ce9cec5ff1de10a9d584717730a09da064d1d03e44adc0fff495294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a900604ce9cec5ff1de10a9d584717730a09da064d1d03e44adc0fff495294", kill_on_drop: false }`
[INFO] [stdout] 10a900604ce9cec5ff1de10a9d584717730a09da064d1d03e44adc0fff495294