[INFO] cloning repository https://github.com/nihaodekuangshang/tng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nihaodekuangshang/tng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnihaodekuangshang%2Ftng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnihaodekuangshang%2Ftng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d63573cedf56c63da7d6adb43e4b9a9e5e163c01
[INFO] checking nihaodekuangshang/tng against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnihaodekuangshang%2Ftng" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nihaodekuangshang/tng
[INFO] finished tweaking git repo https://github.com/nihaodekuangshang/tng
[INFO] tweaked toml for git repo https://github.com/nihaodekuangshang/tng written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nihaodekuangshang/tng on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nihaodekuangshang/tng 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ac87847192d853290c0a0a34494619536d4acb421453347751427b2aaf2a26f
[INFO] running `Command { std: "docker" "start" "-a" "8ac87847192d853290c0a0a34494619536d4acb421453347751427b2aaf2a26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ac87847192d853290c0a0a34494619536d4acb421453347751427b2aaf2a26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac87847192d853290c0a0a34494619536d4acb421453347751427b2aaf2a26f", kill_on_drop: false }`
[INFO] [stdout] 8ac87847192d853290c0a0a34494619536d4acb421453347751427b2aaf2a26f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 823fbba97e573522ee81f4daec5f422e2aea49d1075d443874ae5c9d6ae98bcd
[INFO] running `Command { std: "docker" "start" "-a" "823fbba97e573522ee81f4daec5f422e2aea49d1075d443874ae5c9d6ae98bcd", kill_on_drop: false }`
[INFO] [stderr]     Checking tng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tools::get_num`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tools::get_num;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tools::get_num`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tools::get_num;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/Lexer.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut tokens = Vec::<Token<'a>>::new();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]   --> src/main.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run(code: &str) {
[INFO] [stdout]    |        ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_file` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn run_file(path: &String) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run(code: &str) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PERCENT` is never constructed
[INFO] [stdout]   --> src/Lexer.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     PERCENT,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/Lexer.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     Number(f64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 97 -     Number(f64),
[INFO] [stdout] 97 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/Lexer.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     Str(&'a str),
[INFO] [stdout]    |     --- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 98 -     Str(&'a str),
[INFO] [stdout] 98 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Boolean`, `Function`, `Userdata`, `Thread`, and `Table` are never constructed
[INFO] [stdout]    --> src/Lexer.rs:96:5
[INFO] [stdout]     |
[INFO] [stdout]  94 | pub enum Literal<'a> {
[INFO] [stdout]     |          ------- variants in this enum
[INFO] [stdout]  95 |     Nil,
[INFO] [stdout]  96 |     Boolean(bool),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     Function,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 100 |     Userdata,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 101 |     Thread,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 102 |     Table,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `lexeme`, `literal`, and `line` are never read
[INFO] [stdout]    --> src/Lexer.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct Token<'a> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 106 |     kind: TokenType,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 107 |     lexeme: &'a str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 108 |     literal: Literal<'a>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 109 |     line: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next` and `peek` are never used
[INFO] [stdout]    --> src/Lexer.rs:567:12
[INFO] [stdout]     |
[INFO] [stdout] 120 | impl<'a, 'b: 'a> Lexer<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_num` is never used
[INFO] [stdout]    --> src/Lexer.rs:575:4
[INFO] [stdout]     |
[INFO] [stdout] 575 | fn read_num(input: &str) -> Option<(usize, usize)> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ToolError` is never used
[INFO] [stdout]  --> src/tools.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ToolError {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_num` is never used
[INFO] [stdout]   --> src/tools.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn get_num(str: &String, index: &mut usize) -> Result<usize, ToolError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Error` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod Error;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Lexer` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod Lexer;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         stdin.read_line(&mut code);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = stdin.read_line(&mut code);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/Lexer.rs:567:17
[INFO] [stdout]     |
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token {
[INFO] [stdout]     |                 ^^^^^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/Lexer.rs:570:17
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token {
[INFO] [stdout]     |                 ^^^^^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/Lexer.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut tokens = Vec::<Token<'a>>::new();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]   --> src/main.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run(code: &str) {
[INFO] [stdout]    |        ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_file` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn run_file(path: &String) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run(code: &str) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PERCENT` is never constructed
[INFO] [stdout]   --> src/Lexer.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     PERCENT,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/Lexer.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     Number(f64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 97 -     Number(f64),
[INFO] [stdout] 97 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/Lexer.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     Str(&'a str),
[INFO] [stdout]    |     --- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 98 -     Str(&'a str),
[INFO] [stdout] 98 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Boolean`, `Function`, `Userdata`, `Thread`, and `Table` are never constructed
[INFO] [stdout]    --> src/Lexer.rs:96:5
[INFO] [stdout]     |
[INFO] [stdout]  94 | pub enum Literal<'a> {
[INFO] [stdout]     |          ------- variants in this enum
[INFO] [stdout]  95 |     Nil,
[INFO] [stdout]  96 |     Boolean(bool),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     Function,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 100 |     Userdata,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 101 |     Thread,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 102 |     Table,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `lexeme`, `literal`, and `line` are never read
[INFO] [stdout]    --> src/Lexer.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct Token<'a> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 106 |     kind: TokenType,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 107 |     lexeme: &'a str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 108 |     literal: Literal<'a>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 109 |     line: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next` and `peek` are never used
[INFO] [stdout]    --> src/Lexer.rs:567:12
[INFO] [stdout]     |
[INFO] [stdout] 120 | impl<'a, 'b: 'a> Lexer<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_num` is never used
[INFO] [stdout]    --> src/Lexer.rs:575:4
[INFO] [stdout]     |
[INFO] [stdout] 575 | fn read_num(input: &str) -> Option<(usize, usize)> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ToolError` is never used
[INFO] [stdout]  --> src/tools.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ToolError {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_num` is never used
[INFO] [stdout]   --> src/tools.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn get_num(str: &String, index: &mut usize) -> Result<usize, ToolError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Error` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod Error;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Lexer` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod Lexer;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         stdin.read_line(&mut code);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = stdin.read_line(&mut code);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/Lexer.rs:567:17
[INFO] [stdout]     |
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token {
[INFO] [stdout]     |                 ^^^^^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     pub fn next(&mut self) -> Token<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/Lexer.rs:570:17
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token {
[INFO] [stdout]     |                 ^^^^^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn peek(&mut self) -> Token<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "823fbba97e573522ee81f4daec5f422e2aea49d1075d443874ae5c9d6ae98bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823fbba97e573522ee81f4daec5f422e2aea49d1075d443874ae5c9d6ae98bcd", kill_on_drop: false }`
[INFO] [stdout] 823fbba97e573522ee81f4daec5f422e2aea49d1075d443874ae5c9d6ae98bcd
