[INFO] cloning repository https://github.com/Nazariglez/monkeylang-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nazariglez/monkeylang-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazariglez%2Fmonkeylang-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazariglez%2Fmonkeylang-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5900888c8130244f4f6c8d7fa69d0c8c7dcb4473
[INFO] checking Nazariglez/monkeylang-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazariglez%2Fmonkeylang-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nazariglez/monkeylang-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nazariglez/monkeylang-rs
[INFO] finished tweaking git repo https://github.com/Nazariglez/monkeylang-rs
[INFO] tweaked toml for git repo https://github.com/Nazariglez/monkeylang-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Nazariglez/monkeylang-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cec3badbdc6c7a4e6ec4ec62dd9b04421786ce1c14e1eaed510d8584f08a86f0
[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" "cec3badbdc6c7a4e6ec4ec62dd9b04421786ce1c14e1eaed510d8584f08a86f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cec3badbdc6c7a4e6ec4ec62dd9b04421786ce1c14e1eaed510d8584f08a86f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec3badbdc6c7a4e6ec4ec62dd9b04421786ce1c14e1eaed510d8584f08a86f0", kill_on_drop: false }`
[INFO] [stdout] cec3badbdc6c7a4e6ec4ec62dd9b04421786ce1c14e1eaed510d8584f08a86f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 702c04a16de892ca7a8b341fc13e96527ea0a23b740ca20cd06834dcde00902f
[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" "702c04a16de892ca7a8b341fc13e96527ea0a23b740ca20cd06834dcde00902f", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout]    |             ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout] 69 |             _Ident => "Ident",
[INFO] [stdout]    |             ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 70 |             _ => "Unimplemented!"
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/token.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(typ: TokenType, literal: &str) -> Token {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_char`
[INFO] [stdout]   --> src/token.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn from_char(typ: TokenType, ch: char) -> Token {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default`
[INFO] [stdout]   --> src/token.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn default() -> Token {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]   --> src/token.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Illegal,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/token.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ident`
[INFO] [stdout]   --> src/token.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Ident,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Int,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/token.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Assign`
[INFO] [stdout]   --> src/token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Assign,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/token.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/token.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bang`
[INFO] [stdout]   --> src/token.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Bang,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Asterisk`
[INFO] [stdout]   --> src/token.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Asterisk,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/token.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LT`
[INFO] [stdout]   --> src/token.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     LT,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GT`
[INFO] [stdout]   --> src/token.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     GT,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/token.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotEqual`
[INFO] [stdout]   --> src/token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     NotEqual,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/token.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Semicolon`
[INFO] [stdout]   --> src/token.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lparen`
[INFO] [stdout]   --> src/token.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Lparen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rparen`
[INFO] [stdout]   --> src/token.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Rparen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lbrace`
[INFO] [stdout]   --> src/token.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Lbrace,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rbrace`
[INFO] [stdout]   --> src/token.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Rbrace,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/token.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Function,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/token.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Let,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/token.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/token.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/token.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/token.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/token.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lookup_ident`
[INFO] [stdout]   --> src/token.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn lookup_ident(ident: &str) -> TokenType {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ZERO_CHAR`
[INFO] [stdout]  --> src/lexer.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const ZERO_CHAR:char = 0u8 as char;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_letter`
[INFO] [stdout]  --> src/lexer.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_letter(ch: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_digit`
[INFO] [stdout]  --> src/lexer.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn is_digit(ch: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lexer`
[INFO] [stdout]   --> src/lexer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Lexer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lexer.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(input: &str) -> Lexer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_char`
[INFO] [stdout]   --> src/lexer.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn read_char(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_number`
[INFO] [stdout]   --> src/lexer.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn read_number(&mut self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_identifier`
[INFO] [stdout]   --> src/lexer.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn read_identifier(&mut self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_char`
[INFO] [stdout]   --> src/lexer.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn peek_char(&self) -> char {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_token`
[INFO] [stdout]   --> src/lexer.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn next_token(&mut self) -> Token {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_whitespace`
[INFO] [stdout]    --> src/lexer.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/ast.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(tok: Token, val: &str) -> Identifier {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token_literal`
[INFO] [stdout]   --> src/ast.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn token_literal(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/ast.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Let(Identifier, Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/ast.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Return(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Expression`
[INFO] [stdout]   --> src/ast.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Expression(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/ast.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     Identifier(Identifier),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> src/ast.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Literal(Literal),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/ast.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     Int(i32),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/ast.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     String(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/ast.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Bool(bool)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/ast.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn new() -> Program {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token_literal`
[INFO] [stdout]    --> src/ast.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn token_literal(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/parser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(lexer: Lexer) -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `errors`
[INFO] [stdout]   --> src/parser.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn errors(&self) -> &Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_error`
[INFO] [stdout]   --> src/parser.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn peek_error(&mut self, typ: &TokenType) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_token`
[INFO] [stdout]   --> src/parser.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn next_token(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_program`
[INFO] [stdout]   --> src/parser.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn parse_program(&mut self) -> Result<ast::Program, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_statement`
[INFO] [stdout]   --> src/parser.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn parse_statement(&mut self) -> Option<ast::Statement> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_let_statement`
[INFO] [stdout]   --> src/parser.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn parse_let_statement(&mut self) -> Option<ast::Statement> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_return_statement`
[INFO] [stdout]   --> src/parser.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn parse_return_statement(&mut self) -> Option<ast::Statement> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cur_token_is`
[INFO] [stdout]    --> src/parser.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn cur_token_is(&self, typ: TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_token_is`
[INFO] [stdout]    --> src/parser.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn peek_token_is(&self, typ: &TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `expect_peek`
[INFO] [stdout]    --> src/parser.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn expect_peek(&mut self, typ: TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Illegal` should have a snake case name
[INFO] [stdout]   --> src/token.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `_illegal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_EOF` should have a snake case name
[INFO] [stdout]   --> src/token.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `_eof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Ident` should have a snake case name
[INFO] [stdout]   --> src/token.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             _Ident => "Ident",
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 73 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout]    |             ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout] 69 |             _Ident => "Ident",
[INFO] [stdout]    |             ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             -------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 70 |             _ => "Unimplemented!"
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Expression`
[INFO] [stdout]   --> src/ast.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Expression(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> src/ast.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Literal(Literal),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/ast.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     Int(i32),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/ast.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     String(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/ast.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Bool(bool)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token_literal`
[INFO] [stdout]    --> src/ast.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn token_literal(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `errors`
[INFO] [stdout]   --> src/parser.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn errors(&self) -> &Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Illegal` should have a snake case name
[INFO] [stdout]   --> src/token.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             _Illegal => "Illegal",
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `_illegal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_EOF` should have a snake case name
[INFO] [stdout]   --> src/token.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             _EOF => "EOF",
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `_eof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Ident` should have a snake case name
[INFO] [stdout]   --> src/token.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             _Ident => "Ident",
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "702c04a16de892ca7a8b341fc13e96527ea0a23b740ca20cd06834dcde00902f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702c04a16de892ca7a8b341fc13e96527ea0a23b740ca20cd06834dcde00902f", kill_on_drop: false }`
[INFO] [stdout] 702c04a16de892ca7a8b341fc13e96527ea0a23b740ca20cd06834dcde00902f