Oct 15 07:22:26.080 INFO testing RaphaelAddile/monkeylang-rs against try#40d4795669493f1965de7c44029c69552134fe1f for rustdoc-test-static-cling-1
Oct 15 07:22:26.080 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-1/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/rustdoc-test-static-cling-1/try#40d4795669493f1965de7c44029c69552134fe1f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +40d4795669493f1965de7c44029c69552134fe1f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 15 07:22:26.508 INFO blam! 47dd7d10d6a65d437571ed0d0bb55a3fbd72b2e5c7093ebda7303e4905bf8845
Oct 15 07:22:26.512 INFO running `"docker" "start" "-a" "47dd7d10d6a65d437571ed0d0bb55a3fbd72b2e5c7093ebda7303e4905bf8845"`
Oct 15 07:22:27.739 INFO kablam! usermod: no changes
Oct 15 07:22:27.804 INFO kablam!    Compiling rustyline v1.0.0
Oct 15 07:22:30.206 INFO kablam!    Compiling monkeylang-rs v0.1.0 (/source)
Oct 15 07:22:30.859 INFO kablam! warning: unused import: `parser::Parser`
Oct 15 07:22:30.859 INFO kablam!  --> src/ast.rs:1:5
Oct 15 07:22:30.860 INFO kablam!   |
Oct 15 07:22:30.860 INFO kablam! 1 | use parser::Parser;
Oct 15 07:22:30.860 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 15 07:22:30.860 INFO kablam!   |
Oct 15 07:22:30.860 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 15 07:22:30.861 INFO kablam! 
Oct 15 07:22:30.861 INFO kablam! warning: unused import: `std::collections::HashMap`
Oct 15 07:22:30.861 INFO kablam!  --> src/parser.rs:5:5
Oct 15 07:22:30.861 INFO kablam!   |
Oct 15 07:22:30.862 INFO kablam! 5 | use std::collections::HashMap;
Oct 15 07:22:30.862 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:30.862 INFO kablam! 
Oct 15 07:22:30.862 INFO kablam! warning: unused imports: `Discriminant`, `discriminant`
Oct 15 07:22:30.862 INFO kablam!  --> src/parser.rs:6:16
Oct 15 07:22:30.863 INFO kablam!   |
Oct 15 07:22:30.863 INFO kablam! 6 | use std::mem::{discriminant, replace, Discriminant};
Oct 15 07:22:30.863 INFO kablam!   |                ^^^^^^^^^^^^           ^^^^^^^^^^^^
Oct 15 07:22:30.863 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: struct is never constructed: `Program`
Oct 15 07:22:31.157 INFO kablam!  --> src/ast.rs:3:1
Oct 15 07:22:31.157 INFO kablam!   |
Oct 15 07:22:31.157 INFO kablam! 3 | pub struct Program {
Oct 15 07:22:31.157 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam!   |
Oct 15 07:22:31.157 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: method is never used: `new`
Oct 15 07:22:31.157 INFO kablam!  --> src/ast.rs:8:5
Oct 15 07:22:31.157 INFO kablam!   |
Oct 15 07:22:31.157 INFO kablam! 8 |     pub fn new() -> Program {
Oct 15 07:22:31.157 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Let`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:17:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 17 |     Let(String, Expression),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Return`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:18:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 18 |     Return(Expression),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Expr`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:19:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 19 |     Expr(Expression),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Invalid`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:20:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 20 |     Invalid,
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Identifier`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:25:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 25 |     Identifier(String),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `IntegerLiteral`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:26:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 26 |     IntegerLiteral(i64),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Not`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:27:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 27 |     Not(Box<Expression>),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.157 INFO kablam! 
Oct 15 07:22:31.157 INFO kablam! warning: variant is never constructed: `Negative`
Oct 15 07:22:31.157 INFO kablam!   --> src/ast.rs:28:5
Oct 15 07:22:31.157 INFO kablam!    |
Oct 15 07:22:31.157 INFO kablam! 28 |     Negative(Box<Expression>),
Oct 15 07:22:31.157 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Add`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:29:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 29 |     Add(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Sub`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:30:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 30 |     Sub(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Mul`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:31:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 31 |     Mul(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Div`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:32:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 32 |     Div(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `GreaterThan`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:33:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 33 |     GreaterThan(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `LessThan`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:34:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 34 |     LessThan(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Equal`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:35:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 35 |     Equal(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `NotEqual`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:36:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 36 |     NotEqual(Box<Expression>, Box<Expression>),
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Invalid`
Oct 15 07:22:31.158 INFO kablam!   --> src/ast.rs:37:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 37 |     Invalid,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Lowest`
Oct 15 07:22:31.158 INFO kablam!   --> src/parser.rs:10:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 10 |     Lowest,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Equals`
Oct 15 07:22:31.158 INFO kablam!   --> src/parser.rs:11:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 11 |     Equals,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `LessGreater`
Oct 15 07:22:31.158 INFO kablam!   --> src/parser.rs:12:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 12 |     LessGreater,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^^^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Sum`
Oct 15 07:22:31.158 INFO kablam!   --> src/parser.rs:13:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 13 |     Sum,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^
Oct 15 07:22:31.158 INFO kablam! 
Oct 15 07:22:31.158 INFO kablam! warning: variant is never constructed: `Product`
Oct 15 07:22:31.158 INFO kablam!   --> src/parser.rs:14:5
Oct 15 07:22:31.158 INFO kablam!    |
Oct 15 07:22:31.158 INFO kablam! 14 |     Product,
Oct 15 07:22:31.158 INFO kablam!    |     ^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: variant is never constructed: `Prefix`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:15:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 15 |     Prefix,
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: variant is never constructed: `Call`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:16:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 16 |     Call,
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: struct is never constructed: `Parser`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:19:1
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 19 | pub struct Parser {
Oct 15 07:22:31.159 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `new`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:27:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 27 |     pub fn new(lexer: Lexer) -> Parser {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_identifier`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:41:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 41 |     pub fn parse_identifier(&mut self) -> Expression {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `print_errors`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:48:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 48 |     pub fn print_errors(&self) {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `next_token`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:55:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 55 |     pub fn next_token(&mut self) {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_program`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:59:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 59 |     pub fn parse_program(&mut self) -> Program {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_statement`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:73:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 73 |     pub fn parse_statement(&mut self) -> Statement {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_return_statement`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:81:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 81 |     pub fn parse_return_statement(&mut self) -> Statement {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_let_statement`
Oct 15 07:22:31.159 INFO kablam!   --> src/parser.rs:93:5
Oct 15 07:22:31.159 INFO kablam!    |
Oct 15 07:22:31.159 INFO kablam! 93 |     pub fn parse_let_statement(&mut self) -> Statement {
Oct 15 07:22:31.159 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_expression_statement`
Oct 15 07:22:31.159 INFO kablam!    --> src/parser.rs:120:5
Oct 15 07:22:31.159 INFO kablam!     |
Oct 15 07:22:31.159 INFO kablam! 120 |     pub fn parse_expression_statement(&mut self) -> Statement {
Oct 15 07:22:31.159 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.159 INFO kablam! warning: method is never used: `parse_prefix_expression`
Oct 15 07:22:31.159 INFO kablam!    --> src/parser.rs:130:5
Oct 15 07:22:31.159 INFO kablam!     |
Oct 15 07:22:31.159 INFO kablam! 130 |     pub fn parse_prefix_expression(&mut self) -> Expression {
Oct 15 07:22:31.159 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.159 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `parse_expression`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:144:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 144 |     pub fn parse_expression(&mut self, precedence: Precedence) -> Expression {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `parse_infix_expression`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:160:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 160 |     pub fn parse_infix_expression(&mut self, left: Expression) -> Expression {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `parse_integer_literal`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:200:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 200 |     pub fn parse_integer_literal(&mut self) -> Expression {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `get_precedence`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:207:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 207 |     pub fn get_precedence(token: &Token) -> Precedence {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `peek_precedence`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:217:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 217 |     pub fn peek_precedence(&self) -> Precedence {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:31.160 INFO kablam! warning: method is never used: `current_precedence`
Oct 15 07:22:31.160 INFO kablam!    --> src/parser.rs:221:5
Oct 15 07:22:31.160 INFO kablam!     |
Oct 15 07:22:31.160 INFO kablam! 221 |     pub fn current_precedence(&self) -> Precedence {
Oct 15 07:22:31.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:31.160 INFO kablam! 
Oct 15 07:22:32.291 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
Oct 15 07:22:32.291 INFO kablam! su: No module specific data is present
Oct 15 07:22:32.875 INFO running `"docker" "rm" "-f" "47dd7d10d6a65d437571ed0d0bb55a3fbd72b2e5c7093ebda7303e4905bf8845"`
Oct 15 07:22:33.179 INFO blam! 47dd7d10d6a65d437571ed0d0bb55a3fbd72b2e5c7093ebda7303e4905bf8845
Oct 15 07:22:33.188 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-1/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/rustdoc-test-static-cling-1/try#40d4795669493f1965de7c44029c69552134fe1f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +40d4795669493f1965de7c44029c69552134fe1f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 15 07:22:33.541 INFO blam! 8559b651271e68a51c20e5c40bb88604135f29d5e6c99c584bc1655f0307be7a
Oct 15 07:22:33.543 INFO running `"docker" "start" "-a" "8559b651271e68a51c20e5c40bb88604135f29d5e6c99c584bc1655f0307be7a"`
Oct 15 07:22:34.918 INFO kablam! usermod: no changes
Oct 15 07:22:35.015 INFO kablam!    Compiling monkeylang-rs v0.1.0 (/source)
Oct 15 07:22:35.835 INFO kablam! warning: unused import: `parser::Parser`
Oct 15 07:22:35.835 INFO kablam!  --> src/ast.rs:1:5
Oct 15 07:22:35.835 INFO kablam!   |
Oct 15 07:22:35.835 INFO kablam! 1 | use parser::Parser;
Oct 15 07:22:35.836 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 15 07:22:35.836 INFO kablam!   |
Oct 15 07:22:35.836 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 15 07:22:35.836 INFO kablam! 
Oct 15 07:22:35.836 INFO kablam! warning: unused import: `std::collections::HashMap`
Oct 15 07:22:35.837 INFO kablam!  --> src/parser.rs:5:5
Oct 15 07:22:35.837 INFO kablam!   |
Oct 15 07:22:35.837 INFO kablam! 5 | use std::collections::HashMap;
Oct 15 07:22:35.837 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 07:22:35.837 INFO kablam! 
Oct 15 07:22:35.837 INFO kablam! warning: unused imports: `Discriminant`, `discriminant`
Oct 15 07:22:35.838 INFO kablam!  --> src/parser.rs:6:16
Oct 15 07:22:35.838 INFO kablam!   |
Oct 15 07:22:35.838 INFO kablam! 6 | use std::mem::{discriminant, replace, Discriminant};
Oct 15 07:22:35.838 INFO kablam!   |                ^^^^^^^^^^^^           ^^^^^^^^^^^^
Oct 15 07:22:35.838 INFO kablam! 
Oct 15 07:22:36.087 INFO kablam! warning: unused variable: `expression`
Oct 15 07:22:36.087 INFO kablam!    --> src/parser.rs:289:49
Oct 15 07:22:36.088 INFO kablam!     |
Oct 15 07:22:36.088 INFO kablam! 289 |             &Statement::Let(ref identifier, ref expression) => {
Oct 15 07:22:36.088 INFO kablam!     |                                                 ^^^^^^^^^^ help: consider using `_expression` instead
Oct 15 07:22:36.089 INFO kablam!     |
Oct 15 07:22:36.089 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 15 07:22:36.089 INFO kablam! 
Oct 15 07:22:36.203 INFO kablam! warning: variant is never constructed: `Call`
Oct 15 07:22:36.204 INFO kablam!   --> src/parser.rs:16:5
Oct 15 07:22:36.204 INFO kablam!    |
Oct 15 07:22:36.204 INFO kablam! 16 |     Call,
Oct 15 07:22:36.204 INFO kablam!    |     ^^^^
Oct 15 07:22:36.205 INFO kablam!    |
Oct 15 07:22:36.205 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 15 07:22:36.205 INFO kablam! 
Oct 15 07:22:37.694 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
Oct 15 07:22:37.697 INFO kablam! su: No module specific data is present
Oct 15 07:22:38.427 INFO running `"docker" "rm" "-f" "8559b651271e68a51c20e5c40bb88604135f29d5e6c99c584bc1655f0307be7a"`
Oct 15 07:22:38.787 INFO blam! 8559b651271e68a51c20e5c40bb88604135f29d5e6c99c584bc1655f0307be7a
Oct 15 07:22:38.790 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-1/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/rustdoc-test-static-cling-1/try#40d4795669493f1965de7c44029c69552134fe1f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +40d4795669493f1965de7c44029c69552134fe1f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 15 07:22:39.273 INFO blam! 57c4cf75f04bc455784f7f369b57ff993a8bf017d46ee56b23c621485da52672
Oct 15 07:22:39.277 INFO running `"docker" "start" "-a" "57c4cf75f04bc455784f7f369b57ff993a8bf017d46ee56b23c621485da52672"`
Oct 15 07:22:41.134 INFO kablam! usermod: no changes
Oct 15 07:22:41.211 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Oct 15 07:22:41.225 INFO kablam!      Running /target/debug/deps/monkeylang_rs-988c1f74d364e658
Oct 15 07:22:41.231 INFO blam! 
Oct 15 07:22:41.231 INFO blam! running 7 tests
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_return_statements ... ok
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_parsing_prefix_expressions ... ok
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_parsing_infix_expressions ... ok
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_let_statements ... ok
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_integer_literal_expression ... ok
Oct 15 07:22:41.231 INFO blam! test lexer::tests::test_next_token ... ok
Oct 15 07:22:41.231 INFO blam! test parser::tests::test_identifier_expression ... ok
Oct 15 07:22:41.231 INFO blam! 
Oct 15 07:22:41.231 INFO blam! test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Oct 15 07:22:41.231 INFO blam! 
Oct 15 07:22:41.232 INFO kablam! su: No module specific data is present
Oct 15 07:22:42.091 INFO running `"docker" "rm" "-f" "57c4cf75f04bc455784f7f369b57ff993a8bf017d46ee56b23c621485da52672"`
Oct 15 07:22:42.414 INFO blam! 57c4cf75f04bc455784f7f369b57ff993a8bf017d46ee56b23c621485da52672