[INFO] cloning repository https://github.com/AbooMinister25/alpaca
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AbooMinister25/alpaca" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbooMinister25%2Falpaca", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbooMinister25%2Falpaca'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3bad7b08c7dd003eda8a154fa31d655af78ad13d
[INFO] checking AbooMinister25/alpaca against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbooMinister25%2Falpaca" "/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/AbooMinister25/alpaca
[INFO] finished tweaking git repo https://github.com/AbooMinister25/alpaca
[INFO] tweaked toml for git repo https://github.com/AbooMinister25/alpaca written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AbooMinister25/alpaca on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AbooMinister25/alpaca 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c8a58641b89f71cb39c945f50c5e52785864669bea447e4be5d26e007e6704b
[INFO] running `Command { std: "docker" "start" "-a" "7c8a58641b89f71cb39c945f50c5e52785864669bea447e4be5d26e007e6704b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c8a58641b89f71cb39c945f50c5e52785864669bea447e4be5d26e007e6704b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8a58641b89f71cb39c945f50c5e52785864669bea447e4be5d26e007e6704b", kill_on_drop: false }`
[INFO] [stdout] 7c8a58641b89f71cb39c945f50c5e52785864669bea447e4be5d26e007e6704b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a9dc336090a7973a257040389d1f54dc1450162e6707ba3aaa4f40dee6a04af
[INFO] running `Command { std: "docker" "start" "-a" "1a9dc336090a7973a257040389d1f54dc1450162e6707ba3aaa4f40dee6a04af", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.6
[INFO] [stderr]     Checking alpaca v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Annotation` and `Statement`
[INFO] [stdout]  --> src/parser/expression.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::parser::ast::{Annotation, Expr, Statement};
[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 imports: `Annotation` and `Statement`
[INFO] [stdout]  --> src/parser/expression.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::parser::ast::{Annotation, Expr, Statement};
[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: `crate::tokens::TokenKind`
[INFO] [stdout]  --> src/parser/statement.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tokens::TokenKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokens::TokenKind`
[INFO] [stdout]  --> src/parser/statement.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tokens::TokenKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/parser/expression.rs:118:25
[INFO] [stdout]     |
[INFO] [stdout] 118 |             expressions.push(todo!());
[INFO] [stdout]     |                         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         unreachable call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/parser/expression.rs:118:25
[INFO] [stdout]     |
[INFO] [stdout] 118 |             expressions.push(todo!());
[INFO] [stdout]     |                         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         unreachable call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/expression.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut lhs = self.prefix_rule(token)?;
[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: `precedence`
[INFO] [stdout]   --> src/parser/expression.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse_expression(&mut self, precedence: u8) -> ExprResult {
[INFO] [stdout]    |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> src/parser/expression.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut lhs = self.prefix_rule(token)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/expression.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut lhs = self.prefix_rule(token)?;
[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: `precedence`
[INFO] [stdout]   --> src/parser/expression.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn parse_expression(&mut self, precedence: u8) -> ExprResult {
[INFO] [stdout]    |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> src/parser/expression.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut lhs = self.prefix_rule(token)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peeked`
[INFO] [stdout]   --> src/parser/statement.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let peeked = self.peek();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_peeked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peeked`
[INFO] [stdout]   --> src/parser/statement.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let peeked = self.peek();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_peeked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorKind` is never used
[INFO] [stdout]   --> src/parser/mod.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum ErrorKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParserError` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct ParserError {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `with_help` are never used
[INFO] [stdout]   --> src/parser/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl ParserError {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new(kind: ErrorKind, help: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn with_help(self, help: String) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct Parser<'a> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `advance`, `peek`, `at_end`, `consume`, and `synchronize` are never used
[INFO] [stdout]    --> src/parser/mod.rs:56:12
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  56 |     pub fn new(source: &'a str, filename: &'a str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  66 |     fn advance(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn peek(&mut self) -> &Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |     fn at_end(&mut self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     fn consume(&mut self, expected: &TokenKind) -> Result<(), ParserError> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LiteralKind` is never used
[INFO] [stdout]  --> src/parser/ast.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum LiteralKind {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Annotation` is never used
[INFO] [stdout]   --> src/parser/ast.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Annotation {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/parser/ast.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Expr {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]   --> src/parser/ast.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub enum Statement {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ExprResult` is never used
[INFO] [stdout]  --> src/parser/expression.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type ExprResult = Result<Spanned<Expr>, ParserError>;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorKind` is never used
[INFO] [stdout]   --> src/parser/mod.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum ErrorKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/parser/expression.rs:12:12
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout]  11 |     /// Parses an expression.
[INFO] [stdout]  12 |     pub fn parse_expression(&mut self, precedence: u8) -> ExprResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  18 |     fn prefix_rule(&mut self, token: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  32 |     fn parse_literal(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     fn parse_grouping(&mut self) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |     fn parse_tuple(&mut self, first: Spanned<Expr>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn parse_unary(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     fn parse_array(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn parse_block(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StatementResult` is never used
[INFO] [stdout]  --> src/parser/statement.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type StatementResult = Result<Spanned<Statement>, ParserError>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParserError` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct ParserError {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `with_help` are never used
[INFO] [stdout]   --> src/parser/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl ParserError {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new(kind: ErrorKind, help: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn with_help(self, help: String) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct Parser<'a> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `parse_statement`, `parse_return`, `parse_let`, `parse_annotation`, and `parse_annotation_from` are never used
[INFO] [stdout]   --> src/parser/statement.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a> Parser<'a> {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout]  9 |     /// Parses a statement.
[INFO] [stdout] 10 |     pub fn parse_statement(&mut self) -> StatementResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn parse_return(&mut self) -> StatementResult {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn parse_let(&mut self) -> StatementResult {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn parse_annotation(&mut self) -> Result<Spanned<Annotation>, ParserError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn parse_annotation_from(&self, expr: &Expr) -> Result<Annotation, ParserError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_keyword` is never used
[INFO] [stdout]   --> src/lexer.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn get_keyword(name: &str) -> TokenKind {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Lexer<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `advance`, `peek`, `at_end`, `consume`, and `synchronize` are never used
[INFO] [stdout]    --> src/parser/mod.rs:56:12
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  56 |     pub fn new(source: &'a str, filename: &'a str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  66 |     fn advance(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn peek(&mut self) -> &Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |     fn at_end(&mut self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     fn consume(&mut self, expected: &TokenKind) -> Result<(), ParserError> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LiteralKind` is never used
[INFO] [stdout]  --> src/parser/ast.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum LiteralKind {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Annotation` is never used
[INFO] [stdout]   --> src/parser/ast.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Annotation {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/parser/ast.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Expr {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]   --> src/parser/ast.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub enum Statement {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ExprResult` is never used
[INFO] [stdout]  --> src/parser/expression.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type ExprResult = Result<Spanned<Expr>, ParserError>;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer.rs:45:12
[INFO] [stdout]     |
[INFO] [stdout]  44 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  45 |     pub fn new(source: &'a str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |     fn advance(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn peek(&mut self) -> Option<&char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  63 |     fn consume(&mut self, expected: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  74 |     pub fn at_end(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     fn create_token(&mut self, kind: TokenKind, len: usize) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     fn lex_string(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn lex_number(&mut self, first_char: char) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn lex_identifier(&mut self, first_char: char) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn next_token(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Spanned` is never used
[INFO] [stdout]  --> src/span.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Spanned<T> = (T, Span);
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Span` is never constructed
[INFO] [stdout]  --> src/span.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Span {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]  --> src/tokens.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum TokenKind {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/parser/expression.rs:12:12
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout]  11 |     /// Parses an expression.
[INFO] [stdout]  12 |     pub fn parse_expression(&mut self, precedence: u8) -> ExprResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  18 |     fn prefix_rule(&mut self, token: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  32 |     fn parse_literal(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     fn parse_grouping(&mut self) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |     fn parse_tuple(&mut self, first: Spanned<Expr>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn parse_unary(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     fn parse_array(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn parse_block(&mut self, current: Spanned<TokenKind>) -> ExprResult {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StatementResult` is never used
[INFO] [stdout]  --> src/parser/statement.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type StatementResult = Result<Spanned<Statement>, ParserError>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `parse_statement`, `parse_return`, `parse_let`, `parse_annotation`, and `parse_annotation_from` are never used
[INFO] [stdout]   --> src/parser/statement.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a> Parser<'a> {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout]  9 |     /// Parses a statement.
[INFO] [stdout] 10 |     pub fn parse_statement(&mut self) -> StatementResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn parse_return(&mut self) -> StatementResult {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn parse_let(&mut self) -> StatementResult {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn parse_annotation(&mut self) -> Result<Spanned<Annotation>, ParserError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn parse_annotation_from(&self, expr: &Expr) -> Result<Annotation, ParserError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_keyword` is never used
[INFO] [stdout]   --> src/lexer.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn get_keyword(name: &str) -> TokenKind {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Lexer<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer.rs:45:12
[INFO] [stdout]     |
[INFO] [stdout]  44 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  45 |     pub fn new(source: &'a str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |     fn advance(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn peek(&mut self) -> Option<&char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  63 |     fn consume(&mut self, expected: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  74 |     pub fn at_end(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     fn create_token(&mut self, kind: TokenKind, len: usize) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     fn lex_string(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn lex_number(&mut self, first_char: char) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn lex_identifier(&mut self, first_char: char) -> Spanned<TokenKind> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn next_token(&mut self) -> Spanned<TokenKind> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Spanned` is never used
[INFO] [stdout]  --> src/span.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Spanned<T> = (T, Span);
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Span` is never constructed
[INFO] [stdout]  --> src/span.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Span {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]  --> src/tokens.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum TokenKind {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "1a9dc336090a7973a257040389d1f54dc1450162e6707ba3aaa4f40dee6a04af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9dc336090a7973a257040389d1f54dc1450162e6707ba3aaa4f40dee6a04af", kill_on_drop: false }`
[INFO] [stdout] 1a9dc336090a7973a257040389d1f54dc1450162e6707ba3aaa4f40dee6a04af
