Dec 11 16:22:39.317 INFO checking jhoudan/monkey-rs against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:22:39.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 16:22:39.794 INFO [stdout] 21de742c9be54a1f2432dae7b9bac9c427a776b82bacceb7a5c8a4ba333ef0ca
Dec 11 16:22:39.796 INFO running `"docker" "start" "-a" "21de742c9be54a1f2432dae7b9bac9c427a776b82bacceb7a5c8a4ba333ef0ca"`
Dec 11 16:22:42.143 INFO [stderr] usermod: no changes
Dec 11 16:22:42.220 INFO [stderr]     Checking monkey v0.1.0 (/source)
Dec 11 16:22:42.876 INFO [stderr] warning: unused import: `token::Token`
Dec 11 16:22:42.876 INFO [stderr]  --> src/main.rs:9:5
Dec 11 16:22:42.876 INFO [stderr]   |
Dec 11 16:22:42.876 INFO [stderr] 9 | use token::Token;
Dec 11 16:22:42.876 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 11 16:22:42.876 INFO [stderr]   |
Dec 11 16:22:42.876 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:22:42.876 INFO [stderr] 
Dec 11 16:22:42.968 INFO [stderr] warning: unused import: `token::Token`
Dec 11 16:22:42.969 INFO [stderr]  --> src/main.rs:9:5
Dec 11 16:22:42.969 INFO [stderr]   |
Dec 11 16:22:42.969 INFO [stderr] 9 | use token::Token;
Dec 11 16:22:42.969 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 11 16:22:42.970 INFO [stderr]   |
Dec 11 16:22:42.970 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:22:42.970 INFO [stderr] 
Dec 11 16:22:43.052 INFO [stderr] warning: struct is never constructed: `Program`
Dec 11 16:22:43.053 INFO [stderr]  --> src/ast.rs:7:1
Dec 11 16:22:43.053 INFO [stderr]   |
Dec 11 16:22:43.053 INFO [stderr] 7 | pub struct Program {
Dec 11 16:22:43.053 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.054 INFO [stderr]   |
Dec 11 16:22:43.054 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:22:43.054 INFO [stderr] 
Dec 11 16:22:43.054 INFO [stderr] warning: method is never used: `new`
Dec 11 16:22:43.055 INFO [stderr]   --> src/ast.rs:12:5
Dec 11 16:22:43.055 INFO [stderr]    |
Dec 11 16:22:43.055 INFO [stderr] 12 |     pub fn new() -> Program {
Dec 11 16:22:43.056 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.056 INFO [stderr] 
Dec 11 16:22:43.056 INFO [stderr] warning: method is never used: `token_literal`
Dec 11 16:22:43.056 INFO [stderr]   --> src/ast.rs:16:5
Dec 11 16:22:43.057 INFO [stderr]    |
Dec 11 16:22:43.057 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 11 16:22:43.057 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.057 INFO [stderr] 
Dec 11 16:22:43.058 INFO [stderr] warning: struct is never constructed: `Statement`
Dec 11 16:22:43.058 INFO [stderr]   --> src/ast.rs:27:1
Dec 11 16:22:43.058 INFO [stderr]    |
Dec 11 16:22:43.059 INFO [stderr] 27 | pub struct Statement {
Dec 11 16:22:43.059 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.059 INFO [stderr] 
Dec 11 16:22:43.059 INFO [stderr] warning: method is never used: `token_literal`
Dec 11 16:22:43.060 INFO [stderr]   --> src/ast.rs:34:5
Dec 11 16:22:43.060 INFO [stderr]    |
Dec 11 16:22:43.060 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 11 16:22:43.060 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.061 INFO [stderr] 
Dec 11 16:22:43.061 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 11 16:22:43.061 INFO [stderr]   --> src/ast.rs:39:1
Dec 11 16:22:43.061 INFO [stderr]    |
Dec 11 16:22:43.062 INFO [stderr] 39 | struct Expression;
Dec 11 16:22:43.062 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.062 INFO [stderr] 
Dec 11 16:22:43.062 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 11 16:22:43.063 INFO [stderr]  --> src/parser.rs:7:1
Dec 11 16:22:43.063 INFO [stderr]   |
Dec 11 16:22:43.063 INFO [stderr] 7 | pub struct Parser<'a> {
Dec 11 16:22:43.064 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.064 INFO [stderr] 
Dec 11 16:22:43.064 INFO [stderr] warning: method is never used: `new`
Dec 11 16:22:43.064 INFO [stderr]   --> src/parser.rs:15:5
Dec 11 16:22:43.065 INFO [stderr]    |
Dec 11 16:22:43.065 INFO [stderr] 15 |     fn new(mut lexer: Lexer) -> Parser {
Dec 11 16:22:43.065 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.065 INFO [stderr] 
Dec 11 16:22:43.066 INFO [stderr] warning: method is never used: `next_token`
Dec 11 16:22:43.066 INFO [stderr]   --> src/parser.rs:26:5
Dec 11 16:22:43.066 INFO [stderr]    |
Dec 11 16:22:43.066 INFO [stderr] 26 |     fn next_token(&mut self) {
Dec 11 16:22:43.067 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.067 INFO [stderr] 
Dec 11 16:22:43.067 INFO [stderr] warning: method is never used: `take_current_token`
Dec 11 16:22:43.067 INFO [stderr]   --> src/parser.rs:30:5
Dec 11 16:22:43.068 INFO [stderr]    |
Dec 11 16:22:43.068 INFO [stderr] 30 |     fn take_current_token(&mut self) -> Token {
Dec 11 16:22:43.068 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.068 INFO [stderr] 
Dec 11 16:22:43.069 INFO [stderr] warning: method is never used: `parse_program`
Dec 11 16:22:43.069 INFO [stderr]   --> src/parser.rs:34:5
Dec 11 16:22:43.069 INFO [stderr]    |
Dec 11 16:22:43.072 INFO [stderr] 34 |     fn parse_program(&mut self) -> Program {
Dec 11 16:22:43.072 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.072 INFO [stderr] 
Dec 11 16:22:43.072 INFO [stderr] warning: method is never used: `parse_statement`
Dec 11 16:22:43.072 INFO [stderr]   --> src/parser.rs:47:5
Dec 11 16:22:43.072 INFO [stderr]    |
Dec 11 16:22:43.072 INFO [stderr] 47 |     fn parse_statement(&mut self) -> Option<Statement> {
Dec 11 16:22:43.072 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.072 INFO [stderr] 
Dec 11 16:22:43.072 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 11 16:22:43.072 INFO [stderr]   --> src/parser.rs:54:5
Dec 11 16:22:43.072 INFO [stderr]    |
Dec 11 16:22:43.072 INFO [stderr] 54 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Dec 11 16:22:43.072 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.072 INFO [stderr] 
Dec 11 16:22:43.176 INFO [stderr] warning: unused variable: `lexer`
Dec 11 16:22:43.176 INFO [stderr]    --> src/lexer.rs:186:17
Dec 11 16:22:43.176 INFO [stderr]     |
Dec 11 16:22:43.176 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 11 16:22:43.176 INFO [stderr]     |                 ^^^^^ help: consider using `_lexer` instead
Dec 11 16:22:43.176 INFO [stderr]     |
Dec 11 16:22:43.176 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 16:22:43.176 INFO [stderr] 
Dec 11 16:22:43.213 INFO [stderr] warning: variable does not need to be mutable
Dec 11 16:22:43.213 INFO [stderr]    --> src/lexer.rs:186:13
Dec 11 16:22:43.213 INFO [stderr]     |
Dec 11 16:22:43.213 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 11 16:22:43.213 INFO [stderr]     |             ----^^^^^
Dec 11 16:22:43.213 INFO [stderr]     |             |
Dec 11 16:22:43.213 INFO [stderr]     |             help: remove this `mut`
Dec 11 16:22:43.224 INFO [stderr]     |
Dec 11 16:22:43.224 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 16:22:43.224 INFO [stderr] 
Dec 11 16:22:43.232 INFO [stderr] warning: method is never used: `token_literal`
Dec 11 16:22:43.232 INFO [stderr]   --> src/ast.rs:16:5
Dec 11 16:22:43.232 INFO [stderr]    |
Dec 11 16:22:43.232 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 11 16:22:43.232 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.233 INFO [stderr]    |
Dec 11 16:22:43.234 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 16:22:43.234 INFO [stderr] 
Dec 11 16:22:43.234 INFO [stderr] warning: method is never used: `token_literal`
Dec 11 16:22:43.234 INFO [stderr]   --> src/ast.rs:34:5
Dec 11 16:22:43.234 INFO [stderr]    |
Dec 11 16:22:43.234 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 11 16:22:43.234 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.234 INFO [stderr] 
Dec 11 16:22:43.234 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 11 16:22:43.234 INFO [stderr]   --> src/ast.rs:39:1
Dec 11 16:22:43.234 INFO [stderr]    |
Dec 11 16:22:43.234 INFO [stderr] 39 | struct Expression;
Dec 11 16:22:43.234 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 16:22:43.234 INFO [stderr] 
Dec 11 16:22:43.284 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 11 16:22:43.286 INFO [stderr] su: No module specific data is present
Dec 11 16:22:44.865 INFO running `"docker" "inspect" "21de742c9be54a1f2432dae7b9bac9c427a776b82bacceb7a5c8a4ba333ef0ca"`
Dec 11 16:22:45.248 INFO running `"docker" "rm" "-f" "21de742c9be54a1f2432dae7b9bac9c427a776b82bacceb7a5c8a4ba333ef0ca"`
Dec 11 16:22:45.564 INFO [stdout] 21de742c9be54a1f2432dae7b9bac9c427a776b82bacceb7a5c8a4ba333ef0ca