Nov 28 03:20:27.559 INFO checking jhoudan/monkey-rs against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 03:20:27.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-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"`
Nov 28 03:20:27.976 INFO [stdout] 879600fb93dde2ef6986d71595868e847999dac83335a5abd49c188840744c9e
Nov 28 03:20:27.997 INFO running `"docker" "start" "-a" "879600fb93dde2ef6986d71595868e847999dac83335a5abd49c188840744c9e"`
Nov 28 03:20:29.124 INFO [stderr] usermod: no changes
Nov 28 03:20:29.172 INFO [stderr]     Checking monkey v0.1.0 (/source)
Nov 28 03:20:29.476 INFO [stderr] warning: unused import: `token::Token`
Nov 28 03:20:29.478 INFO [stderr]  --> src/main.rs:9:5
Nov 28 03:20:29.478 INFO [stderr]   |
Nov 28 03:20:29.478 INFO [stderr] 9 | use token::Token;
Nov 28 03:20:29.478 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 03:20:29.478 INFO [stderr]   |
Nov 28 03:20:29.478 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:20:29.478 INFO [stderr] 
Nov 28 03:20:29.572 INFO [stderr] warning: struct is never constructed: `Program`
Nov 28 03:20:29.572 INFO [stderr]  --> src/ast.rs:7:1
Nov 28 03:20:29.573 INFO [stderr]   |
Nov 28 03:20:29.573 INFO [stderr] 7 | pub struct Program {
Nov 28 03:20:29.573 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr]   |
Nov 28 03:20:29.573 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `new`
Nov 28 03:20:29.573 INFO [stderr]   --> src/ast.rs:12:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 12 |     pub fn new() -> Program {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `token_literal`
Nov 28 03:20:29.573 INFO [stderr]   --> src/ast.rs:16:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: struct is never constructed: `Statement`
Nov 28 03:20:29.573 INFO [stderr]   --> src/ast.rs:27:1
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 27 | pub struct Statement {
Nov 28 03:20:29.573 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `token_literal`
Nov 28 03:20:29.573 INFO [stderr]   --> src/ast.rs:34:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: struct is never constructed: `Expression`
Nov 28 03:20:29.573 INFO [stderr]   --> src/ast.rs:39:1
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 39 | struct Expression;
Nov 28 03:20:29.573 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: struct is never constructed: `Parser`
Nov 28 03:20:29.573 INFO [stderr]  --> src/parser.rs:7:1
Nov 28 03:20:29.573 INFO [stderr]   |
Nov 28 03:20:29.573 INFO [stderr] 7 | pub struct Parser<'a> {
Nov 28 03:20:29.573 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `new`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:15:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 15 |     fn new(mut lexer: Lexer) -> Parser {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `next_token`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:26:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 26 |     fn next_token(&mut self) {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `take_current_token`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:30:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 30 |     fn take_current_token(&mut self) -> Token {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `parse_program`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:34:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 34 |     fn parse_program(&mut self) -> Program {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `parse_statement`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:47:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 47 |     fn parse_statement(&mut self) -> Option<Statement> {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.573 INFO [stderr] warning: method is never used: `parse_let_statement`
Nov 28 03:20:29.573 INFO [stderr]   --> src/parser.rs:54:5
Nov 28 03:20:29.573 INFO [stderr]    |
Nov 28 03:20:29.573 INFO [stderr] 54 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Nov 28 03:20:29.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.573 INFO [stderr] 
Nov 28 03:20:29.692 INFO [stderr] warning: unused import: `token::Token`
Nov 28 03:20:29.692 INFO [stderr]  --> src/main.rs:9:5
Nov 28 03:20:29.692 INFO [stderr]   |
Nov 28 03:20:29.692 INFO [stderr] 9 | use token::Token;
Nov 28 03:20:29.692 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 03:20:29.692 INFO [stderr]   |
Nov 28 03:20:29.692 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:20:29.692 INFO [stderr] 
Nov 28 03:20:29.840 INFO [stderr] warning: unused variable: `lexer`
Nov 28 03:20:29.840 INFO [stderr]    --> src/lexer.rs:186:17
Nov 28 03:20:29.840 INFO [stderr]     |
Nov 28 03:20:29.840 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Nov 28 03:20:29.840 INFO [stderr]     |                 ^^^^^ help: consider using `_lexer` instead
Nov 28 03:20:29.840 INFO [stderr]     |
Nov 28 03:20:29.840 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 03:20:29.840 INFO [stderr] 
Nov 28 03:20:29.888 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:20:29.888 INFO [stderr]    --> src/lexer.rs:186:13
Nov 28 03:20:29.888 INFO [stderr]     |
Nov 28 03:20:29.888 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Nov 28 03:20:29.888 INFO [stderr]     |             ----^^^^^
Nov 28 03:20:29.888 INFO [stderr]     |             |
Nov 28 03:20:29.888 INFO [stderr]     |             help: remove this `mut`
Nov 28 03:20:29.888 INFO [stderr]     |
Nov 28 03:20:29.888 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 03:20:29.888 INFO [stderr] 
Nov 28 03:20:29.904 INFO [stderr] warning: method is never used: `token_literal`
Nov 28 03:20:29.904 INFO [stderr]   --> src/ast.rs:16:5
Nov 28 03:20:29.904 INFO [stderr]    |
Nov 28 03:20:29.904 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Nov 28 03:20:29.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.904 INFO [stderr]    |
Nov 28 03:20:29.904 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 03:20:29.904 INFO [stderr] 
Nov 28 03:20:29.904 INFO [stderr] warning: method is never used: `token_literal`
Nov 28 03:20:29.904 INFO [stderr]   --> src/ast.rs:34:5
Nov 28 03:20:29.904 INFO [stderr]    |
Nov 28 03:20:29.904 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Nov 28 03:20:29.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.904 INFO [stderr] 
Nov 28 03:20:29.904 INFO [stderr] warning: struct is never constructed: `Expression`
Nov 28 03:20:29.904 INFO [stderr]   --> src/ast.rs:39:1
Nov 28 03:20:29.904 INFO [stderr]    |
Nov 28 03:20:29.904 INFO [stderr] 39 | struct Expression;
Nov 28 03:20:29.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 28 03:20:29.904 INFO [stderr] 
Nov 28 03:20:29.956 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Nov 28 03:20:29.964 INFO [stderr] su: No module specific data is present
Nov 28 03:20:30.914 INFO running `"docker" "inspect" "879600fb93dde2ef6986d71595868e847999dac83335a5abd49c188840744c9e"`
Nov 28 03:20:31.188 INFO running `"docker" "rm" "-f" "879600fb93dde2ef6986d71595868e847999dac83335a5abd49c188840744c9e"`
Nov 28 03:20:31.504 INFO [stdout] 879600fb93dde2ef6986d71595868e847999dac83335a5abd49c188840744c9e