[INFO] cloning repository https://github.com/Maxxxxz/MACLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Maxxxxz/MACLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxxxxz%2FMACLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxxxxz%2FMACLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfb877c85d505ca3457f912ceb2880409bdb8a82
[INFO] checking Maxxxxz/MACLang against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxxxxz%2FMACLang" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Maxxxxz/MACLang on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Maxxxxz/MACLang
[INFO] finished tweaking git repo https://github.com/Maxxxxz/MACLang
[INFO] tweaked toml for git repo https://github.com/Maxxxxz/MACLang written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Maxxxxz/MACLang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1f0b601425560dd404eed1310f81e0f4058d3bbbe057b1d06ccbab96de9e970
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1f0b601425560dd404eed1310f81e0f4058d3bbbe057b1d06ccbab96de9e970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1f0b601425560dd404eed1310f81e0f4058d3bbbe057b1d06ccbab96de9e970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1f0b601425560dd404eed1310f81e0f4058d3bbbe057b1d06ccbab96de9e970", kill_on_drop: false }`
[INFO] [stdout] a1f0b601425560dd404eed1310f81e0f4058d3bbbe057b1d06ccbab96de9e970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76cd61acefb250b1bcd3ba0fad4931f265cefc7f0751ab2befbf663883479a5c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "76cd61acefb250b1bcd3ba0fad4931f265cefc7f0751ab2befbf663883479a5c", kill_on_drop: false }`
[INFO] [stderr]     Checking MACLang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `SET_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/./core/token.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     SET_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `SetEqual`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TEST_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/./core/token.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     TEST_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `TestEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SET_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/./core/token.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     SET_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `SetEqual`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TEST_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/./core/token.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     TEST_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `TestEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lexer`
[INFO] [stdout]  --> src/./core/lex.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Lexer<'z>
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LocInfo`
[INFO] [stdout]   --> src/./core/lex.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct LocInfo
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextRow`
[INFO] [stdout]   --> src/./core/lex.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn nextRow(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextCol`
[INFO] [stdout]   --> src/./core/lex.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn nextCol(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./core/lex.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(inStr: &'z str) -> Self
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/./core/lex.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn next(self: &mut Lexer<'z>) -> Result<Token, String>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lex`
[INFO] [stdout]   --> src/./core/lex.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn lex(self: &mut Lexer<'z>) -> Result<Token, String>
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/./core/parse.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Parser<'z>
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/./core/parse.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse(inStr: &str)// -> what to return to compiler? 🤔
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]  --> src/./core/token.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Token
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `commentDepth` should have a snake case name
[INFO] [stdout]  --> src/./core/lex.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     commentDepth: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: convert the identifier to snake case: `comment_depth`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextRow` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn nextRow(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `next_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextCol` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn nextCol(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `next_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inStr` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(inStr: &'z str) -> Self
[INFO] [stdout]    |                ^^^^^ help: convert the identifier to snake case: `in_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toLex` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let toLex = ls.content;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `to_lex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inStr` should have a snake case name
[INFO] [stdout]   --> src/./core/parse.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse(inStr: &str)// -> what to return to compiler? 🤔
[INFO] [stdout]    |                  ^^^^^ help: convert the identifier to snake case: `in_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lexer`
[INFO] [stdout]  --> src/./core/lex.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Lexer<'z>
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LocInfo`
[INFO] [stdout]   --> src/./core/lex.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct LocInfo
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextRow`
[INFO] [stdout]   --> src/./core/lex.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn nextRow(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextCol`
[INFO] [stdout]   --> src/./core/lex.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn nextCol(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./core/lex.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(inStr: &'z str) -> Self
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/./core/lex.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn next(self: &mut Lexer<'z>) -> Result<Token, String>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lex`
[INFO] [stdout]   --> src/./core/lex.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn lex(self: &mut Lexer<'z>) -> Result<Token, String>
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/./core/parse.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Parser<'z>
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/./core/parse.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse(inStr: &str)// -> what to return to compiler? 🤔
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]  --> src/./core/token.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Token
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `commentDepth` should have a snake case name
[INFO] [stdout]  --> src/./core/lex.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     commentDepth: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: convert the identifier to snake case: `comment_depth`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextRow` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn nextRow(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `next_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextCol` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn nextCol(&mut self, x: u64)
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `next_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inStr` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(inStr: &'z str) -> Self
[INFO] [stdout]    |                ^^^^^ help: convert the identifier to snake case: `in_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toLex` should have a snake case name
[INFO] [stdout]   --> src/./core/lex.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let toLex = ls.content;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `to_lex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inStr` should have a snake case name
[INFO] [stdout]   --> src/./core/parse.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse(inStr: &str)// -> what to return to compiler? 🤔
[INFO] [stdout]    |                  ^^^^^ help: convert the identifier to snake case: `in_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_to_string`
[INFO] [stdout]  --> src/main.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{File, read_to_string};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toLex`
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let toLex = readFile(inFileName);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_toLex`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `MACLang` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `maclang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inFileName` should have a snake case name
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let inFileName = &args[1];
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `in_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toLex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let toLex = readFile(inFileName);
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `to_lex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn readFile(inFile: &str) -> String //Vec<String>
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `read_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn readFile(inFile: &str) -> String //Vec<String>
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `in_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_to_string`
[INFO] [stdout]  --> src/main.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{File, read_to_string};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     file.read_to_string(&mut out);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toLex`
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let toLex = readFile(inFileName);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_toLex`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `MACLang` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `maclang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inFileName` should have a snake case name
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let inFileName = &args[1];
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `in_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toLex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let toLex = readFile(inFileName);
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `to_lex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn readFile(inFile: &str) -> String //Vec<String>
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `read_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn readFile(inFile: &str) -> String //Vec<String>
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `in_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     file.read_to_string(&mut out);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "76cd61acefb250b1bcd3ba0fad4931f265cefc7f0751ab2befbf663883479a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cd61acefb250b1bcd3ba0fad4931f265cefc7f0751ab2befbf663883479a5c", kill_on_drop: false }`
[INFO] [stdout] 76cd61acefb250b1bcd3ba0fad4931f265cefc7f0751ab2befbf663883479a5c
