[INFO] cloning repository https://github.com/uditaagarwal31/asa-language
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uditaagarwal31/asa-language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuditaagarwal31%2Fasa-language", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuditaagarwal31%2Fasa-language'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 840495a1a9e92582aa2aeddbd547f37db662716e
[INFO] building uditaagarwal31/asa-language against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuditaagarwal31%2Fasa-language" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uditaagarwal31/asa-language on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uditaagarwal31/asa-language
[INFO] finished tweaking git repo https://github.com/uditaagarwal31/asa-language
[INFO] tweaked toml for git repo https://github.com/uditaagarwal31/asa-language written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/uditaagarwal31/asa-language 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb540c5145d6973b01566fa207e6145b2aa6e01f6f7beece3b67cfe974b21d72
[INFO] running `Command { std: "docker" "start" "-a" "bb540c5145d6973b01566fa207e6145b2aa6e01f6f7beece3b67cfe974b21d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb540c5145d6973b01566fa207e6145b2aa6e01f6f7beece3b67cfe974b21d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb540c5145d6973b01566fa207e6145b2aa6e01f6f7beece3b67cfe974b21d72", kill_on_drop: false }`
[INFO] [stdout] bb540c5145d6973b01566fa207e6145b2aa6e01f6f7beece3b67cfe974b21d72
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08c326dd42c1e56eaa01bf260836f785cefbf6a400fbfd3a2fbd517c399f68d7
[INFO] running `Command { std: "docker" "start" "-a" "08c326dd42c1e56eaa01bf260836f785cefbf6a400fbfd3a2fbd517c399f68d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling asalang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpreter.rs:193:18
[INFO] [stdout]     |
[INFO] [stdout] 193 |             _ => ("Operator error".to_string())
[INFO] [stdout]     |                  ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 193 -             _ => ("Operator error".to_string())
[INFO] [stdout] 193 +             _ => "Operator error".to_string()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:225:11
[INFO] [stdout]     |
[INFO] [stdout] 225 |         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout]     |           ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 225 -         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout] 225 +         if (lhs_bool && rhs_number) || (rhs_bool && lhs_number) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:230:12
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if (string_op_val == "<"){
[INFO] [stdout]     |            ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if (string_op_val == "<"){
[INFO] [stdout] 230 +         if string_op_val == "<" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |         } else if (string_op_val == ">"){
[INFO] [stdout]     |                   ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -         } else if (string_op_val == ">"){
[INFO] [stdout] 232 +         } else if string_op_val == ">" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:234:19
[INFO] [stdout]     |
[INFO] [stdout] 234 |         } else if (string_op_val == "=="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 234 -         } else if (string_op_val == "=="){
[INFO] [stdout] 234 +         } else if string_op_val == "==" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:236:19
[INFO] [stdout]     |
[INFO] [stdout] 236 |         } else if (string_op_val == "!="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -         } else if (string_op_val == "!="){
[INFO] [stdout] 236 +         } else if string_op_val == "!=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 238 |         } else if (string_op_val == ">="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -         } else if (string_op_val == ">="){
[INFO] [stdout] 238 +         } else if string_op_val == ">=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |         } else if (string_op_val == "<="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 240 -         } else if (string_op_val == "<="){
[INFO] [stdout] 240 +         } else if string_op_val == "<=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:297:11
[INFO] [stdout]     |
[INFO] [stdout] 297 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 297 -         if(condition){
[INFO] [stdout] 297 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:328:11
[INFO] [stdout]     |
[INFO] [stdout] 328 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 328 -         if(condition){
[INFO] [stdout] 328 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combinator::opt`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     combinator::opt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/interpreter.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         for i in 0..rhs {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_lhs`
[INFO] [stdout]    --> src/interpreter.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let check_lhs = match lhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs_val`
[INFO] [stdout]    --> src/interpreter.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |             Value::Bool(lhs_val) => {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/interpreter.rs:206:27
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Value::Number(lhs) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_rhs`
[INFO] [stdout]    --> src/interpreter.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let check_rhs = match rhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:214:25
[INFO] [stdout]     |
[INFO] [stdout] 214 |             Value::Bool(rhs_val) =>{
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:217:27
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Value::Number(rhs_val) =>{
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                 let result = match c { // matches the children to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:330:21
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 let result = match c {  // matches each element to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let result = match c { // matches each element to Statement node 
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (input, mut args) = many0(arguments)(input)?; // applies parser 0 or more times to recognise arguments function and returns in args 
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 |               self.run(n);
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 31 |               let _ = self.run(n);
[INFO] [stdout]    |               +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:262:13
[INFO] [stdout]     |
[INFO] [stdout] 262 | /             match c {
[INFO] [stdout] 263 | |                 Node::IfStatement { .. } => {
[INFO] [stdout] 264 | |                     self.run(&children[0])
[INFO] [stdout] 265 | |                 },
[INFO] [stdout] ...   |
[INFO] [stdout] 272 | |                 _ => Err("Unknown Statement".to_string()), // if none match, returns error message 
[INFO] [stdout] 273 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let _ = match c {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:434:3
[INFO] [stdout]     |
[INFO] [stdout] 434 |   runtime.run(node);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 434 |   let _ = runtime.run(node);
[INFO] [stdout]     |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node` and `Runtime`
[INFO] [stdout]  --> src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use asalang::{program, Runtime, Node, start_interpreter};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `Command { std: "docker" "inspect" "08c326dd42c1e56eaa01bf260836f785cefbf6a400fbfd3a2fbd517c399f68d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c326dd42c1e56eaa01bf260836f785cefbf6a400fbfd3a2fbd517c399f68d7", kill_on_drop: false }`
[INFO] [stdout] 08c326dd42c1e56eaa01bf260836f785cefbf6a400fbfd3a2fbd517c399f68d7
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f998c1ceff6633bfbfdedb3d8e094e031966c8517b1b4c6a77f7c339ac7d04e2
[INFO] running `Command { std: "docker" "start" "-a" "f998c1ceff6633bfbfdedb3d8e094e031966c8517b1b4c6a77f7c339ac7d04e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling asalang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpreter.rs:193:18
[INFO] [stdout]     |
[INFO] [stdout] 193 |             _ => ("Operator error".to_string())
[INFO] [stdout]     |                  ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 193 -             _ => ("Operator error".to_string())
[INFO] [stdout] 193 +             _ => "Operator error".to_string()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:225:11
[INFO] [stdout]     |
[INFO] [stdout] 225 |         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout]     |           ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 225 -         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout] 225 +         if (lhs_bool && rhs_number) || (rhs_bool && lhs_number) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:230:12
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if (string_op_val == "<"){
[INFO] [stdout]     |            ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if (string_op_val == "<"){
[INFO] [stdout] 230 +         if string_op_val == "<" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |         } else if (string_op_val == ">"){
[INFO] [stdout]     |                   ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -         } else if (string_op_val == ">"){
[INFO] [stdout] 232 +         } else if string_op_val == ">" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:234:19
[INFO] [stdout]     |
[INFO] [stdout] 234 |         } else if (string_op_val == "=="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 234 -         } else if (string_op_val == "=="){
[INFO] [stdout] 234 +         } else if string_op_val == "==" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:236:19
[INFO] [stdout]     |
[INFO] [stdout] 236 |         } else if (string_op_val == "!="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -         } else if (string_op_val == "!="){
[INFO] [stdout] 236 +         } else if string_op_val == "!=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 238 |         } else if (string_op_val == ">="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -         } else if (string_op_val == ">="){
[INFO] [stdout] 238 +         } else if string_op_val == ">=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |         } else if (string_op_val == "<="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 240 -         } else if (string_op_val == "<="){
[INFO] [stdout] 240 +         } else if string_op_val == "<=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:297:11
[INFO] [stdout]     |
[INFO] [stdout] 297 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 297 -         if(condition){
[INFO] [stdout] 297 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:328:11
[INFO] [stdout]     |
[INFO] [stdout] 328 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 328 -         if(condition){
[INFO] [stdout] 328 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combinator::opt`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     combinator::opt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/interpreter.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         for i in 0..rhs {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_lhs`
[INFO] [stdout]    --> src/interpreter.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let check_lhs = match lhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs_val`
[INFO] [stdout]    --> src/interpreter.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |             Value::Bool(lhs_val) => {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/interpreter.rs:206:27
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Value::Number(lhs) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_rhs`
[INFO] [stdout]    --> src/interpreter.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let check_rhs = match rhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:214:25
[INFO] [stdout]     |
[INFO] [stdout] 214 |             Value::Bool(rhs_val) =>{
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:217:27
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Value::Number(rhs_val) =>{
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                 let result = match c { // matches the children to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:330:21
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 let result = match c {  // matches each element to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let result = match c { // matches each element to Statement node 
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (input, mut args) = many0(arguments)(input)?; // applies parser 0 or more times to recognise arguments function and returns in args 
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 |               self.run(n);
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 31 |               let _ = self.run(n);
[INFO] [stdout]    |               +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:262:13
[INFO] [stdout]     |
[INFO] [stdout] 262 | /             match c {
[INFO] [stdout] 263 | |                 Node::IfStatement { .. } => {
[INFO] [stdout] 264 | |                     self.run(&children[0])
[INFO] [stdout] 265 | |                 },
[INFO] [stdout] ...   |
[INFO] [stdout] 272 | |                 _ => Err("Unknown Statement".to_string()), // if none match, returns error message 
[INFO] [stdout] 273 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let _ = match c {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:434:3
[INFO] [stdout]     |
[INFO] [stdout] 434 |   runtime.run(node);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 434 |   let _ = runtime.run(node);
[INFO] [stdout]     |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node` and `Runtime`
[INFO] [stdout]  --> src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use asalang::{program, Runtime, Node, start_interpreter};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node` and `Runtime`
[INFO] [stdout]  --> src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use asalang::{program, Runtime, Node, start_interpreter};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpreter.rs:193:18
[INFO] [stdout]     |
[INFO] [stdout] 193 |             _ => ("Operator error".to_string())
[INFO] [stdout]     |                  ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 193 -             _ => ("Operator error".to_string())
[INFO] [stdout] 193 +             _ => "Operator error".to_string()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:225:11
[INFO] [stdout]     |
[INFO] [stdout] 225 |         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout]     |           ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 225 -         if((lhs_bool && rhs_number) || (rhs_bool && lhs_number)){
[INFO] [stdout] 225 +         if (lhs_bool && rhs_number) || (rhs_bool && lhs_number) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:230:12
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if (string_op_val == "<"){
[INFO] [stdout]     |            ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if (string_op_val == "<"){
[INFO] [stdout] 230 +         if string_op_val == "<" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |         } else if (string_op_val == ">"){
[INFO] [stdout]     |                   ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -         } else if (string_op_val == ">"){
[INFO] [stdout] 232 +         } else if string_op_val == ">" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:234:19
[INFO] [stdout]     |
[INFO] [stdout] 234 |         } else if (string_op_val == "=="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 234 -         } else if (string_op_val == "=="){
[INFO] [stdout] 234 +         } else if string_op_val == "==" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:236:19
[INFO] [stdout]     |
[INFO] [stdout] 236 |         } else if (string_op_val == "!="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -         } else if (string_op_val == "!="){
[INFO] [stdout] 236 +         } else if string_op_val == "!=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 238 |         } else if (string_op_val == ">="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -         } else if (string_op_val == ">="){
[INFO] [stdout] 238 +         } else if string_op_val == ">=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |         } else if (string_op_val == "<="){
[INFO] [stdout]     |                   ^                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 240 -         } else if (string_op_val == "<="){
[INFO] [stdout] 240 +         } else if string_op_val == "<=" {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:297:11
[INFO] [stdout]     |
[INFO] [stdout] 297 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 297 -         if(condition){
[INFO] [stdout] 297 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/interpreter.rs:328:11
[INFO] [stdout]     |
[INFO] [stdout] 328 |         if(condition){
[INFO] [stdout]     |           ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 328 -         if(condition){
[INFO] [stdout] 328 +         if condition {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combinator::opt`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     combinator::opt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]  --> tests/test.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use asalang::{program, Node, Value, Runtime};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::IResult`
[INFO] [stdout]  --> tests/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use nom::IResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 27 | test!(numeric, r#"123"#, Ok(Value::Number(123))); 
[INFO] [stdout]    | ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 27 | test!(numeric, r#"123"#, Ok(Value::Number(123))); 
[INFO] [stdout]    | ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 28 | test!(identifier, r#"x"#, Err("Undefined variable".to_string())); 
[INFO] [stdout]    | ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 28 | test!(identifier, r#"x"#, Err("Undefined variable".to_string())); 
[INFO] [stdout]    | ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 29 | test!(string, r#""hello world""#, Ok(Value::String("hello world".to_string()))); 
[INFO] [stdout]    | ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 29 | test!(string, r#""hello world""#, Ok(Value::String("hello world".to_string()))); 
[INFO] [stdout]    | ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 30 | test!(bool_true, r#"true"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | -------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 30 | test!(bool_true, r#"true"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | -------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 31 | test!(bool_false, r#"false"#, Ok(Value::Bool(false))); 
[INFO] [stdout]    | ----------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 31 | test!(bool_false, r#"false"#, Ok(Value::Bool(false))); 
[INFO] [stdout]    | ----------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 32 | test!(function_call, r#"foo()"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 32 | test!(function_call, r#"foo()"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 33 | test!(function_call_one_arg, r#"foo(a)"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 33 | test!(function_call_one_arg, r#"foo(a)"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/interpreter.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         for i in 0..rhs {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_lhs`
[INFO] [stdout]    --> src/interpreter.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let check_lhs = match lhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs_val`
[INFO] [stdout]    --> src/interpreter.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |             Value::Bool(lhs_val) => {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/interpreter.rs:206:27
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Value::Number(lhs) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_rhs`
[INFO] [stdout]    --> src/interpreter.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let check_rhs = match rhs_val.clone().unwrap(){
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:214:25
[INFO] [stdout]     |
[INFO] [stdout] 214 |             Value::Bool(rhs_val) =>{
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_val`
[INFO] [stdout]    --> src/interpreter.rs:217:27
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Value::Number(rhs_val) =>{
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                 let result = match c { // matches the children to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:330:21
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 let result = match c {  // matches each element to Statement node 
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let result = match c { // matches each element to Statement node 
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 34 | test!(function_call_more_args, r#"foo(a,b,c)"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | -------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 34 | test!(function_call_more_args, r#"foo(a,b,c)"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | -------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 35 | test!(variable_define, r#"let x = 123;"#, Ok(Value::Number(123))); 
[INFO] [stdout]    | ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 35 | test!(variable_define, r#"let x = 123;"#, Ok(Value::Number(123))); 
[INFO] [stdout]    | ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 36 | test!(variable_init, r#"let x = 1;"#, Ok(Value::Number(1))); 
[INFO] [stdout]    | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 36 | test!(variable_init, r#"let x = 1;"#, Ok(Value::Number(1))); 
[INFO] [stdout]    | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 37 | test!(variable_bool, r#"let bool = true;"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 37 | test!(variable_bool, r#"let bool = true;"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 38 | test!(variable_string, r#"let string = "Hello World";"#, Ok(Value::String("Hello World".to_string())));
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 38 | test!(variable_string, r#"let string = "Hello World";"#, Ok(Value::String("Hello World".to_string())));
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 39 | test!(variable_init_no_space, r#"let x=1;"#, Ok(Value::Number(1))); 
[INFO] [stdout]    | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 39 | test!(variable_init_no_space, r#"let x=1;"#, Ok(Value::Number(1))); 
[INFO] [stdout]    | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 40 | test!(math, r#"1 + 1"#, Ok(Value::Number(2))); 
[INFO] [stdout]    | --------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 40 | test!(math, r#"1 + 1"#, Ok(Value::Number(2))); 
[INFO] [stdout]    | --------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 41 | test!(math_no_space, r#"1+1"#, Ok(Value::Number(2))); 
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 41 | test!(math_no_space, r#"1+1"#, Ok(Value::Number(2))); 
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 42 | test!(math_subtraction, r#"1 - 1"#, Ok(Value::Number(0))); 
[INFO] [stdout]    | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 42 | test!(math_subtraction, r#"1 - 1"#, Ok(Value::Number(0))); 
[INFO] [stdout]    | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 43 | test!(math_multiply, r#"2 * 4"#, Ok(Value::Number(8))); 
[INFO] [stdout]    | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 43 | test!(math_multiply, r#"2 * 4"#, Ok(Value::Number(8))); 
[INFO] [stdout]    | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 44 | test!(math_divide, r#"6 / 2"#, Ok(Value::Number(3)));  
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 44 | test!(math_divide, r#"6 / 2"#, Ok(Value::Number(3)));  
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 45 | test!(math_exponent, r#"2 ^ 4"#, Ok(Value::Number(16))); 
[INFO] [stdout]    | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (input, mut args) = many0(arguments)(input)?; // applies parser 0 or more times to recognise arguments function and returns in args 
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 45 | test!(math_exponent, r#"2 ^ 4"#, Ok(Value::Number(16))); 
[INFO] [stdout]    | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 46 | test!(math_more_terms, r#"10 + 2*6"#, Ok(Value::Number(22))); 
[INFO] [stdout]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 46 | test!(math_more_terms, r#"10 + 2*6"#, Ok(Value::Number(22))); 
[INFO] [stdout]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 47 | test!(math_more_terms_paren, r#"((10+2)*6)/4"#, Ok(Value::Number(18))); 
[INFO] [stdout]    | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 47 | test!(math_more_terms_paren, r#"((10+2)*6)/4"#, Ok(Value::Number(18))); 
[INFO] [stdout]    | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 48 | test!(assign_math, r#"let x = 1 + 1;"#, Ok(Value::Number(2)));
[INFO] [stdout]    | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 48 | test!(assign_math, r#"let x = 1 + 1;"#, Ok(Value::Number(2)));
[INFO] [stdout]    | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 49 | test!(assign_function, r#"let x = foo();"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ---------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 49 | test!(assign_function, r#"let x = foo();"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ---------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 50 | test!(assign_function_arguments, r#"let x = foo(a,b,c);"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 50 | test!(assign_function_arguments, r#"let x = foo(a,b,c);"#, Err("Undefined function".to_string())); 
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 51 | test!(define_function, r#"fn main(){return foo();} fn foo(){return 5;}"#, Ok(Value::Number(5))); 
[INFO] [stdout]    | ----------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 51 | test!(define_function, r#"fn main(){return foo();} fn foo(){return 5;}"#, Ok(Value::Number(5))); 
[INFO] [stdout]    | ----------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 52 | test!(define_function_args, r#"fn main(){return foo(1,2,3);} fn foo(a,b,c){return a+b+c;}"#, Ok(Value::Number(6))); 
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 52 | test!(define_function_args, r#"fn main(){return foo(1,2,3);} fn foo(a,b,c){return a+b+c;}"#, Ok(Value::Number(6))); 
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 53 | / test!(define_function_more_statement, r#"fn main() { 
[INFO] [stdout] 54 | |   return foo();
[INFO] [stdout] 55 | | }
[INFO] [stdout] 56 | | fn foo(){
[INFO] [stdout] 57 | |   let x = 5;
[INFO] [stdout] 58 | |   return x;
[INFO] [stdout] 59 | | }"#, Ok(Value::Number(5)));
[INFO] [stdout]    | |__________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 53 | / test!(define_function_more_statement, r#"fn main() { 
[INFO] [stdout] 54 | |   return foo();
[INFO] [stdout] 55 | | }
[INFO] [stdout] 56 | | fn foo(){
[INFO] [stdout] 57 | |   let x = 5;
[INFO] [stdout] 58 | |   return x;
[INFO] [stdout] 59 | | }"#, Ok(Value::Number(5)));
[INFO] [stdout]    | |__________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 60 | / test!(define_full_program, r#"fn foo(a,b,c) {
[INFO] [stdout] 61 | |   let x = a + 1;
[INFO] [stdout] 62 | |   let y = bar(c - b);
[INFO] [stdout] 63 | |   return x * y;
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |   return foo(1,2,3);  
[INFO] [stdout] 72 | | }"#, Ok(Value::Number(6)));
[INFO] [stdout]    | |__________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 60 | / test!(define_full_program, r#"fn foo(a,b,c) {
[INFO] [stdout] 61 | |   let x = a + 1;
[INFO] [stdout] 62 | |   let y = bar(c - b);
[INFO] [stdout] 63 | |   return x * y;
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |   return foo(1,2,3);  
[INFO] [stdout] 72 | | }"#, Ok(Value::Number(6)));
[INFO] [stdout]    | |__________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 74 | test!(string_new, r#""hi""#, Ok(Value::String("hi".to_string()))); // tests single word strings 
[INFO] [stdout]    | ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 74 | test!(string_new, r#""hi""#, Ok(Value::String("hi".to_string()))); // tests single word strings 
[INFO] [stdout]    | ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 75 | test!(math_new, r#"7 + 7"#, Ok(Value::Number(14))); // tests addition
[INFO] [stdout]    | -------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 75 | test!(math_new, r#"7 + 7"#, Ok(Value::Number(14))); // tests addition
[INFO] [stdout]    | -------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 76 | test!(variable_def_new, r#"let z = 99;"#, Ok(Value::Number(99))); // tests variable define
[INFO] [stdout]    | ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 76 | test!(variable_def_new, r#"let z = 99;"#, Ok(Value::Number(99))); // tests variable define
[INFO] [stdout]    | ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 77 | test!(math_exponent_new, r#"3 ^ 2"#, Ok(Value::Number(9))); // tests exponents
[INFO] [stdout]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 77 | test!(math_exponent_new, r#"3 ^ 2"#, Ok(Value::Number(9))); // tests exponents
[INFO] [stdout]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 78 | test!(conditional_ex1, r#"5 < 7"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 78 | test!(conditional_ex1, r#"5 < 7"#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 79 | test!(conditional_ex2, r#"11 + 6 * 2 < 5 * 2 - 3"#, Ok(Value::Bool(false))); 
[INFO] [stdout]    | --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 79 | test!(conditional_ex2, r#"11 + 6 * 2 < 5 * 2 - 3"#, Ok(Value::Bool(false))); 
[INFO] [stdout]    | --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 80 | test!(conditional_ex3, r#"7 > true"#, Err("Cannot compare these two values".to_string())); 
[INFO] [stdout]    | ----------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |           let mut runtime = Runtime::new();
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 80 | test!(conditional_ex3, r#"7 > true"#, Err("Cannot compare these two values".to_string())); 
[INFO] [stdout]    | ----------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 81 | / test!(if_else_ex1, r#"if 1 < 2 {
[INFO] [stdout] 82 | |   let x = 9;
[INFO] [stdout] 83 | |   return true;
[INFO] [stdout] 84 | |   } else if 3 == 2 {
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |   "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |____________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 81 | / test!(if_else_ex1, r#"if 1 < 2 {
[INFO] [stdout] 82 | |   let x = 9;
[INFO] [stdout] 83 | |   return true;
[INFO] [stdout] 84 | |   } else if 3 == 2 {
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |   "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |____________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /   test!(if_else_ex2, r#"if 1+7 > 9 {
[INFO] [stdout] 91 | |     return true;
[INFO] [stdout] 92 | |     } else if 9 != 2 {
[INFO] [stdout] 93 | |     return true;
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |     "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |______________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /   test!(if_else_ex2, r#"if 1+7 > 9 {
[INFO] [stdout] 91 | |     return true;
[INFO] [stdout] 92 | |     } else if 9 != 2 {
[INFO] [stdout] 93 | |     return true;
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |     "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |______________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]   --> tests/test.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout] ...
[INFO] [stdout] 98 | /     test!(if_else_ex3, r#"if 4 > 3 {return true;} else if 7 == 9 {return false;} else {return true;}
[INFO] [stdout] 99 | |       "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut runtime = Runtime::new();
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 98 | /     test!(if_else_ex3, r#"if 4 > 3 {return true;} else if 7 == 9 {return false;} else {return true;}
[INFO] [stdout] 99 | |       "#, Ok(Value::Bool(true))); 
[INFO] [stdout]    | |________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 |               self.run(n);
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 31 |               let _ = self.run(n);
[INFO] [stdout]    |               +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:262:13
[INFO] [stdout]     |
[INFO] [stdout] 262 | /             match c {
[INFO] [stdout] 263 | |                 Node::IfStatement { .. } => {
[INFO] [stdout] 264 | |                     self.run(&children[0])
[INFO] [stdout] 265 | |                 },
[INFO] [stdout] ...   |
[INFO] [stdout] 272 | |                 _ => Err("Unknown Statement".to_string()), // if none match, returns error message 
[INFO] [stdout] 273 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let _ = match c {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:434:3
[INFO] [stdout]     |
[INFO] [stdout] 434 |   runtime.run(node);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 434 |   let _ = runtime.run(node);
[INFO] [stdout]     |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "f998c1ceff6633bfbfdedb3d8e094e031966c8517b1b4c6a77f7c339ac7d04e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f998c1ceff6633bfbfdedb3d8e094e031966c8517b1b4c6a77f7c339ac7d04e2", kill_on_drop: false }`
[INFO] [stdout] f998c1ceff6633bfbfdedb3d8e094e031966c8517b1b4c6a77f7c339ac7d04e2