Dec 18 05:44:39.522 INFO checking RaphaelAddile/monkeylang-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:44:39.522 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/RaphaelAddile/monkeylang-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:44:40.066 INFO [stdout] c6489de97332acce83c7dddf784efed1595c910caf5fba1b5f2764333830a7ba
Dec 18 05:44:40.074 INFO running `"docker" "start" "-a" "c6489de97332acce83c7dddf784efed1595c910caf5fba1b5f2764333830a7ba"`
Dec 18 05:44:41.117 INFO [stderr]     Checking nix v0.5.1
Dec 18 05:44:43.999 INFO [stderr]     Checking rustyline v1.0.0
Dec 18 05:44:44.960 INFO [stderr]     Checking monkeylang-rs v0.1.0 (/opt/crater/workdir)
Dec 18 05:44:45.496 INFO [stderr] warning: unused import: `parser::Parser`
Dec 18 05:44:45.496 INFO [stderr]  --> src/ast.rs:1:5
Dec 18 05:44:45.496 INFO [stderr]   |
Dec 18 05:44:45.496 INFO [stderr] 1 | use parser::Parser;
Dec 18 05:44:45.496 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:44:45.524 INFO [stderr]   |
Dec 18 05:44:45.524 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:44:45.524 INFO [stderr] 
Dec 18 05:44:45.524 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 18 05:44:45.524 INFO [stderr]  --> src/parser.rs:5:5
Dec 18 05:44:45.524 INFO [stderr]   |
Dec 18 05:44:45.524 INFO [stderr] 5 | use std::collections::HashMap;
Dec 18 05:44:45.524 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.524 INFO [stderr] 
Dec 18 05:44:45.524 INFO [stderr] warning: unused imports: `Discriminant`, `discriminant`
Dec 18 05:44:45.524 INFO [stderr]  --> src/parser.rs:6:16
Dec 18 05:44:45.524 INFO [stderr]   |
Dec 18 05:44:45.524 INFO [stderr] 6 | use std::mem::{discriminant, replace, Discriminant};
Dec 18 05:44:45.524 INFO [stderr]   |                ^^^^^^^^^^^^           ^^^^^^^^^^^^
Dec 18 05:44:45.524 INFO [stderr] 
Dec 18 05:44:45.596 INFO [stderr] warning: unused import: `parser::Parser`
Dec 18 05:44:45.596 INFO [stderr]  --> src/ast.rs:1:5
Dec 18 05:44:45.596 INFO [stderr]   |
Dec 18 05:44:45.596 INFO [stderr] 1 | use parser::Parser;
Dec 18 05:44:45.596 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:44:45.596 INFO [stderr]   |
Dec 18 05:44:45.596 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:44:45.596 INFO [stderr] 
Dec 18 05:44:45.596 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 18 05:44:45.596 INFO [stderr]  --> src/parser.rs:5:5
Dec 18 05:44:45.596 INFO [stderr]   |
Dec 18 05:44:45.596 INFO [stderr] 5 | use std::collections::HashMap;
Dec 18 05:44:45.596 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.596 INFO [stderr] 
Dec 18 05:44:45.596 INFO [stderr] warning: unused imports: `Discriminant`, `discriminant`
Dec 18 05:44:45.596 INFO [stderr]  --> src/parser.rs:6:16
Dec 18 05:44:45.596 INFO [stderr]   |
Dec 18 05:44:45.596 INFO [stderr] 6 | use std::mem::{discriminant, replace, Discriminant};
Dec 18 05:44:45.596 INFO [stderr]   |                ^^^^^^^^^^^^           ^^^^^^^^^^^^
Dec 18 05:44:45.596 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: struct is never constructed: `Program`
Dec 18 05:44:45.828 INFO [stderr]  --> src/ast.rs:3:1
Dec 18 05:44:45.828 INFO [stderr]   |
Dec 18 05:44:45.828 INFO [stderr] 3 | pub struct Program {
Dec 18 05:44:45.828 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr]   |
Dec 18 05:44:45.828 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: method is never used: `new`
Dec 18 05:44:45.828 INFO [stderr]  --> src/ast.rs:8:5
Dec 18 05:44:45.828 INFO [stderr]   |
Dec 18 05:44:45.828 INFO [stderr] 8 |     pub fn new() -> Program {
Dec 18 05:44:45.828 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Let`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:17:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 17 |     Let(String, Expression),
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Return`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:18:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 18 |     Return(Expression),
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Expr`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:19:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 19 |     Expr(Expression),
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Invalid`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:20:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 20 |     Invalid,
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Identifier`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:25:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 25 |     Identifier(String),
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `IntegerLiteral`
Dec 18 05:44:45.828 INFO [stderr]   --> src/ast.rs:26:5
Dec 18 05:44:45.828 INFO [stderr]    |
Dec 18 05:44:45.828 INFO [stderr] 26 |     IntegerLiteral(i64),
Dec 18 05:44:45.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.828 INFO [stderr] 
Dec 18 05:44:45.828 INFO [stderr] warning: variant is never constructed: `Not`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:27:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 27 |     Not(Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Negative`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:28:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 28 |     Negative(Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Add`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:29:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 29 |     Add(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Sub`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:30:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 30 |     Sub(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Mul`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:31:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 31 |     Mul(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Div`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:32:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 32 |     Div(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `GreaterThan`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:33:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 33 |     GreaterThan(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `LessThan`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:34:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 34 |     LessThan(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Equal`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:35:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 35 |     Equal(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `NotEqual`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:36:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 36 |     NotEqual(Box<Expression>, Box<Expression>),
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Invalid`
Dec 18 05:44:45.829 INFO [stderr]   --> src/ast.rs:37:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 37 |     Invalid,
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Lowest`
Dec 18 05:44:45.829 INFO [stderr]   --> src/parser.rs:10:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 10 |     Lowest,
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Equals`
Dec 18 05:44:45.829 INFO [stderr]   --> src/parser.rs:11:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 11 |     Equals,
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `LessGreater`
Dec 18 05:44:45.829 INFO [stderr]   --> src/parser.rs:12:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 12 |     LessGreater,
Dec 18 05:44:45.829 INFO [stderr]    |     ^^^^^^^^^^^
Dec 18 05:44:45.829 INFO [stderr] 
Dec 18 05:44:45.829 INFO [stderr] warning: variant is never constructed: `Sum`
Dec 18 05:44:45.829 INFO [stderr]   --> src/parser.rs:13:5
Dec 18 05:44:45.829 INFO [stderr]    |
Dec 18 05:44:45.829 INFO [stderr] 13 |     Sum,
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: variant is never constructed: `Product`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:14:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 14 |     Product,
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: variant is never constructed: `Prefix`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:15:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 15 |     Prefix,
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: variant is never constructed: `Call`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:16:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 16 |     Call,
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:19:1
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 19 | pub struct Parser {
Dec 18 05:44:45.830 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `new`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:27:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 27 |     pub fn new(lexer: Lexer) -> Parser {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `parse_identifier`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:41:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 41 |     pub fn parse_identifier(&mut self) -> Expression {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `print_errors`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:48:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 48 |     pub fn print_errors(&self) {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `next_token`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:55:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 55 |     pub fn next_token(&mut self) {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `parse_program`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:59:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 59 |     pub fn parse_program(&mut self) -> Program {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `parse_statement`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:73:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 73 |     pub fn parse_statement(&mut self) -> Statement {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.830 INFO [stderr] warning: method is never used: `parse_return_statement`
Dec 18 05:44:45.830 INFO [stderr]   --> src/parser.rs:81:5
Dec 18 05:44:45.830 INFO [stderr]    |
Dec 18 05:44:45.830 INFO [stderr] 81 |     pub fn parse_return_statement(&mut self) -> Statement {
Dec 18 05:44:45.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.830 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 18 05:44:45.831 INFO [stderr]   --> src/parser.rs:93:5
Dec 18 05:44:45.831 INFO [stderr]    |
Dec 18 05:44:45.831 INFO [stderr] 93 |     pub fn parse_let_statement(&mut self) -> Statement {
Dec 18 05:44:45.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_expression_statement`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:120:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 120 |     pub fn parse_expression_statement(&mut self) -> Statement {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_prefix_expression`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:130:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 130 |     pub fn parse_prefix_expression(&mut self) -> Expression {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_expression`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:144:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 144 |     pub fn parse_expression(&mut self, precedence: Precedence) -> Expression {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_infix_expression`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:160:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 160 |     pub fn parse_infix_expression(&mut self, left: Expression) -> Expression {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `parse_integer_literal`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:200:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 200 |     pub fn parse_integer_literal(&mut self) -> Expression {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `get_precedence`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:207:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 207 |     pub fn get_precedence(token: &Token) -> Precedence {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `peek_precedence`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:217:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 217 |     pub fn peek_precedence(&self) -> Precedence {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.831 INFO [stderr] warning: method is never used: `current_precedence`
Dec 18 05:44:45.831 INFO [stderr]    --> src/parser.rs:221:5
Dec 18 05:44:45.831 INFO [stderr]     |
Dec 18 05:44:45.831 INFO [stderr] 221 |     pub fn current_precedence(&self) -> Precedence {
Dec 18 05:44:45.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:45.831 INFO [stderr] 
Dec 18 05:44:45.932 INFO [stderr] warning: unused variable: `expression`
Dec 18 05:44:45.932 INFO [stderr]    --> src/parser.rs:289:49
Dec 18 05:44:45.932 INFO [stderr]     |
Dec 18 05:44:45.932 INFO [stderr] 289 |             &Statement::Let(ref identifier, ref expression) => {
Dec 18 05:44:45.932 INFO [stderr]     |                                                 ^^^^^^^^^^ help: consider using `_expression` instead
Dec 18 05:44:45.932 INFO [stderr]     |
Dec 18 05:44:45.932 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 05:44:45.932 INFO [stderr] 
Dec 18 05:44:46.016 INFO [stderr] warning: variant is never constructed: `Call`
Dec 18 05:44:46.016 INFO [stderr]   --> src/parser.rs:16:5
Dec 18 05:44:46.016 INFO [stderr]    |
Dec 18 05:44:46.016 INFO [stderr] 16 |     Call,
Dec 18 05:44:46.016 INFO [stderr]    |     ^^^^
Dec 18 05:44:46.016 INFO [stderr]    |
Dec 18 05:44:46.016 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:44:46.016 INFO [stderr] 
Dec 18 05:44:46.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.00s
Dec 18 05:44:47.192 INFO running `"docker" "inspect" "c6489de97332acce83c7dddf784efed1595c910caf5fba1b5f2764333830a7ba"`
Dec 18 05:44:47.396 INFO running `"docker" "rm" "-f" "c6489de97332acce83c7dddf784efed1595c910caf5fba1b5f2764333830a7ba"`
Dec 18 05:44:47.684 INFO [stdout] c6489de97332acce83c7dddf784efed1595c910caf5fba1b5f2764333830a7ba