Dec 04 16:38:43.376 INFO checking jhoudan/monkey-rs against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 16:38:43.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 16:38:43.987 INFO [stdout] 7db156852cd1843f3b2838f31e576d95c56883ccdcb6f77dc94b2e300d5d5fe1
Dec 04 16:38:43.989 INFO running `"docker" "start" "-a" "7db156852cd1843f3b2838f31e576d95c56883ccdcb6f77dc94b2e300d5d5fe1"`
Dec 04 16:38:46.218 INFO [stderr] usermod: no changes
Dec 04 16:38:46.319 INFO [stderr]     Checking monkey v0.1.0 (/source)
Dec 04 16:38:46.773 INFO [stderr] warning: unused import: `token::Token`
Dec 04 16:38:46.773 INFO [stderr]  --> src/main.rs:9:5
Dec 04 16:38:46.773 INFO [stderr]   |
Dec 04 16:38:46.773 INFO [stderr] 9 | use token::Token;
Dec 04 16:38:46.773 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 04 16:38:46.773 INFO [stderr]   |
Dec 04 16:38:46.773 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:38:46.773 INFO [stderr] 
Dec 04 16:38:46.959 INFO [stderr] warning: struct is never constructed: `Program`
Dec 04 16:38:46.959 INFO [stderr]  --> src/ast.rs:7:1
Dec 04 16:38:46.959 INFO [stderr]   |
Dec 04 16:38:46.959 INFO [stderr] 7 | pub struct Program {
Dec 04 16:38:46.959 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.959 INFO [stderr]   |
Dec 04 16:38:46.963 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 16:38:46.963 INFO [stderr] 
Dec 04 16:38:46.963 INFO [stderr] warning: method is never used: `new`
Dec 04 16:38:46.963 INFO [stderr]   --> src/ast.rs:12:5
Dec 04 16:38:46.963 INFO [stderr]    |
Dec 04 16:38:46.963 INFO [stderr] 12 |     pub fn new() -> Program {
Dec 04 16:38:46.963 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `token_literal`
Dec 04 16:38:46.970 INFO [stderr]   --> src/ast.rs:16:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: struct is never constructed: `Statement`
Dec 04 16:38:46.970 INFO [stderr]   --> src/ast.rs:27:1
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 27 | pub struct Statement {
Dec 04 16:38:46.970 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `token_literal`
Dec 04 16:38:46.970 INFO [stderr]   --> src/ast.rs:34:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 04 16:38:46.970 INFO [stderr]   --> src/ast.rs:39:1
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 39 | struct Expression;
Dec 04 16:38:46.970 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 04 16:38:46.970 INFO [stderr]  --> src/parser.rs:7:1
Dec 04 16:38:46.970 INFO [stderr]   |
Dec 04 16:38:46.970 INFO [stderr] 7 | pub struct Parser<'a> {
Dec 04 16:38:46.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `new`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:15:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 15 |     fn new(mut lexer: Lexer) -> Parser {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `next_token`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:26:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 26 |     fn next_token(&mut self) {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `take_current_token`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:30:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 30 |     fn take_current_token(&mut self) -> Token {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `parse_program`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:34:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 34 |     fn parse_program(&mut self) -> Program {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `parse_statement`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:47:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 47 |     fn parse_statement(&mut self) -> Option<Statement> {
Dec 04 16:38:46.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.970 INFO [stderr] 
Dec 04 16:38:46.970 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 04 16:38:46.970 INFO [stderr]   --> src/parser.rs:54:5
Dec 04 16:38:46.970 INFO [stderr]    |
Dec 04 16:38:46.970 INFO [stderr] 54 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Dec 04 16:38:46.971 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:46.971 INFO [stderr] 
Dec 04 16:38:47.016 INFO [stderr] warning: unused import: `token::Token`
Dec 04 16:38:47.016 INFO [stderr]  --> src/main.rs:9:5
Dec 04 16:38:47.016 INFO [stderr]   |
Dec 04 16:38:47.016 INFO [stderr] 9 | use token::Token;
Dec 04 16:38:47.016 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 04 16:38:47.016 INFO [stderr]   |
Dec 04 16:38:47.016 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:38:47.016 INFO [stderr] 
Dec 04 16:38:47.094 INFO [stderr] warning: unused variable: `lexer`
Dec 04 16:38:47.094 INFO [stderr]    --> src/lexer.rs:186:17
Dec 04 16:38:47.094 INFO [stderr]     |
Dec 04 16:38:47.094 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 04 16:38:47.094 INFO [stderr]     |                 ^^^^^ help: consider using `_lexer` instead
Dec 04 16:38:47.094 INFO [stderr]     |
Dec 04 16:38:47.094 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 16:38:47.094 INFO [stderr] 
Dec 04 16:38:47.114 INFO [stderr] warning: variable does not need to be mutable
Dec 04 16:38:47.114 INFO [stderr]    --> src/lexer.rs:186:13
Dec 04 16:38:47.114 INFO [stderr]     |
Dec 04 16:38:47.114 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 04 16:38:47.114 INFO [stderr]     |             ----^^^^^
Dec 04 16:38:47.114 INFO [stderr]     |             |
Dec 04 16:38:47.114 INFO [stderr]     |             help: remove this `mut`
Dec 04 16:38:47.114 INFO [stderr]     |
Dec 04 16:38:47.114 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 16:38:47.114 INFO [stderr] 
Dec 04 16:38:47.121 INFO [stderr] warning: method is never used: `token_literal`
Dec 04 16:38:47.121 INFO [stderr]   --> src/ast.rs:16:5
Dec 04 16:38:47.121 INFO [stderr]    |
Dec 04 16:38:47.121 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 04 16:38:47.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:47.121 INFO [stderr]    |
Dec 04 16:38:47.121 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 16:38:47.121 INFO [stderr] 
Dec 04 16:38:47.121 INFO [stderr] warning: method is never used: `token_literal`
Dec 04 16:38:47.121 INFO [stderr]   --> src/ast.rs:34:5
Dec 04 16:38:47.121 INFO [stderr]    |
Dec 04 16:38:47.121 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 04 16:38:47.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:38:47.121 INFO [stderr] 
Dec 04 16:38:47.121 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 04 16:38:47.121 INFO [stderr]   --> src/ast.rs:39:1
Dec 04 16:38:47.121 INFO [stderr]    |
Dec 04 16:38:47.121 INFO [stderr] 39 | struct Expression;
Dec 04 16:38:47.121 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 04 16:38:47.121 INFO [stderr] 
Dec 04 16:38:47.160 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 04 16:38:47.167 INFO [stderr] su: No module specific data is present
Dec 04 16:38:48.459 INFO running `"docker" "inspect" "7db156852cd1843f3b2838f31e576d95c56883ccdcb6f77dc94b2e300d5d5fe1"`
Dec 04 16:38:48.747 INFO running `"docker" "rm" "-f" "7db156852cd1843f3b2838f31e576d95c56883ccdcb6f77dc94b2e300d5d5fe1"`
Dec 04 16:38:49.099 INFO [stdout] 7db156852cd1843f3b2838f31e576d95c56883ccdcb6f77dc94b2e300d5d5fe1