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[INFO] [stdout] warning: unused import: `engine::Value`
[INFO] [stdout]  --> src/engine/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use engine::Value;
[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: `engine::Value`
[INFO] [stdout]  --> src/engine/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use engine::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `op_pos` is never read
[INFO] [stdout]   --> src/engine/engine.rs:58:41
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut op_pos: Option<usize> = None;
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `op_pos` is never read
[INFO] [stdout]   --> src/engine/engine.rs:58:41
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut op_pos: Option<usize> = None;
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/gui/app.rs:125:47
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]     |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut app = CalculatorApp::new();
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut app = CalculatorApp::new();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `history` is never read
[INFO] [stdout]   --> src/engine/engine.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CalculatorEngine {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 17 |     variables: HashMap<String, Expr>,
[INFO] [stdout] 18 |     history: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/gui/app.rs:125:47
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]     |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     HowDidWeGetHere(String), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout]   |     --------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     HowDidWeGetHere(String), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout] 4 +     HowDidWeGetHere(()), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut app = CalculatorApp::new();
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     InvalidExpression(String), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout]   |     ----------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     InvalidExpression(String), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout] 5 +     InvalidExpression(()), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut app = CalculatorApp::new();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 |     InvalidToken(String), // Getting this error should not be possible and that's why it exists
[INFO] [stdout]   |     ------------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     InvalidToken(String), // Getting this error should not be possible and that's why it exists
[INFO] [stdout] 7 +     InvalidToken(()), // Getting this error should not be possible and that's why it exists
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NotImplemented` and `TooManyOperands` are never constructed
[INFO] [stdout]   --> src/engine/errors.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum CalcError {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout]  3 |     NotImplemented, // not implemented
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     TooManyOperands,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn test_add(){ let mut app = CalculatorApp::new();
[INFO] [stdout]    |                        ----^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn test_add(){ let mut app = CalculatorApp::new();
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut app = CalculatorApp::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `history` is never read
[INFO] [stdout]   --> src/engine/engine.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CalculatorEngine {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 17 |     variables: HashMap<String, Expr>,
[INFO] [stdout] 18 |     history: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     HowDidWeGetHere(String), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout]   |     --------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     HowDidWeGetHere(String), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout] 4 +     HowDidWeGetHere(()), // for situations that make no sense, mostly an inside joke from another project
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     InvalidExpression(String), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout]   |     ----------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     InvalidExpression(String), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout] 5 +     InvalidExpression(()), // for invalid expressions like "!" in the base input during tokenization
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/engine/errors.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 |     InvalidToken(String), // Getting this error should not be possible and that's why it exists
[INFO] [stdout]   |     ------------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     InvalidToken(String), // Getting this error should not be possible and that's why it exists
[INFO] [stdout] 7 +     InvalidToken(()), // Getting this error should not be possible and that's why it exists
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NotImplemented` and `TooManyOperands` are never constructed
[INFO] [stdout]   --> src/engine/errors.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum CalcError {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout]  3 |     NotImplemented, // not implemented
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     TooManyOperands,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.67s
[INFO] running `Command { std: "docker" "inspect" "48ef81133adc3c0421d728dea0218054bb47ea8ce00d45ca5b05e75564f1738e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ef81133adc3c0421d728dea0218054bb47ea8ce00d45ca5b05e75564f1738e", kill_on_drop: false }`
[INFO] [stdout] 48ef81133adc3c0421d728dea0218054bb47ea8ce00d45ca5b05e75564f1738e
