Dec 11 10:59:55.450 INFO checking riku179/monkey-lang-rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:59:55.450 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 10:59:55.852 INFO [stdout] df68e5c11e74a41b8554ab6696c93874d58dd6e62ba3c429437b7262e8aa938d
Dec 11 10:59:55.852 INFO running `"docker" "start" "-a" "df68e5c11e74a41b8554ab6696c93874d58dd6e62ba3c429437b7262e8aa938d"`
Dec 11 10:59:56.693 INFO [stderr] usermod: no changes
Dec 11 10:59:56.736 INFO [stderr]     Checking ascii v0.9.1
Dec 11 10:59:57.273 INFO [stderr]     Checking monkey_lang v0.1.0 (/source)
Dec 11 10:59:57.704 INFO [stderr] warning: enum is never used: `Statement`
Dec 11 10:59:57.704 INFO [stderr]  --> src/ast/mod.rs:8:1
Dec 11 10:59:57.704 INFO [stderr]   |
Dec 11 10:59:57.704 INFO [stderr] 8 | pub enum Statement {
Dec 11 10:59:57.704 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr]   |
Dec 11 10:59:57.704 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: struct is never constructed: `Program`
Dec 11 10:59:57.704 INFO [stderr]   --> src/ast/mod.rs:25:1
Dec 11 10:59:57.704 INFO [stderr]    |
Dec 11 10:59:57.704 INFO [stderr] 25 | pub struct Program {
Dec 11 10:59:57.704 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: method is never used: `new`
Dec 11 10:59:57.704 INFO [stderr]   --> src/ast/mod.rs:30:5
Dec 11 10:59:57.704 INFO [stderr]    |
Dec 11 10:59:57.704 INFO [stderr] 30 |     pub fn new() -> Program {
Dec 11 10:59:57.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: struct is never constructed: `LetStatement`
Dec 11 10:59:57.704 INFO [stderr]   --> src/ast/mod.rs:48:1
Dec 11 10:59:57.704 INFO [stderr]    |
Dec 11 10:59:57.704 INFO [stderr] 48 | pub struct LetStatement {
Dec 11 10:59:57.704 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: struct is never constructed: `ReturnStatement`
Dec 11 10:59:57.704 INFO [stderr]   --> src/ast/mod.rs:61:1
Dec 11 10:59:57.704 INFO [stderr]    |
Dec 11 10:59:57.704 INFO [stderr] 61 | pub struct ReturnStatement {
Dec 11 10:59:57.704 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: struct is never constructed: `Identifier`
Dec 11 10:59:57.704 INFO [stderr]   --> src/ast/mod.rs:73:1
Dec 11 10:59:57.704 INFO [stderr]    |
Dec 11 10:59:57.704 INFO [stderr] 73 | pub struct Identifier {
Dec 11 10:59:57.704 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.704 INFO [stderr] 
Dec 11 10:59:57.704 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 11 10:59:57.704 INFO [stderr]  --> src/parser/mod.rs:9:1
Dec 11 10:59:57.705 INFO [stderr]   |
Dec 11 10:59:57.705 INFO [stderr] 9 | struct Parser<'a> {
Dec 11 10:59:57.705 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `new`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:18:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 18 |     fn new(lex: &'a mut lexer::Lexer) -> Parser<'a> {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `next_token`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:29:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 29 |     fn next_token(&mut self) {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `parse_program`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:34:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 34 |     fn parse_program(&mut self) -> ast::Program {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `parse_statement`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:45:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 45 |     fn parse_statement(&mut self) -> Option<Statement> {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:53:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 53 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `parse_return_statement`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:77:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 77 |     fn parse_return_statement(&mut self) -> Option<Statement> {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `cur_token_is`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:91:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 91 |     fn cur_token_is(&self, tok: token::TokenType) -> bool {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `peek_token_is`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:95:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 95 |     fn peek_token_is(&self, tok: token::TokenType) -> bool {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `expect_peek`
Dec 11 10:59:57.705 INFO [stderr]   --> src/parser/mod.rs:99:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 99 |     fn expect_peek(&mut self, tok: token::TokenType) -> bool {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `peek_error`
Dec 11 10:59:57.705 INFO [stderr]    --> src/parser/mod.rs:109:5
Dec 11 10:59:57.705 INFO [stderr]     |
Dec 11 10:59:57.705 INFO [stderr] 109 |     fn peek_error(&mut self, tok: token::TokenType) {
Dec 11 10:59:57.705 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: method is never used: `illegal`
Dec 11 10:59:57.705 INFO [stderr]   --> src/token/mod.rs:21:5
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 21 |     pub fn illegal() -> Token {
Dec 11 10:59:57.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.705 INFO [stderr] warning: constant item is never used: `ILLEGAL`
Dec 11 10:59:57.705 INFO [stderr]   --> src/token/mod.rs:44:1
Dec 11 10:59:57.705 INFO [stderr]    |
Dec 11 10:59:57.705 INFO [stderr] 44 | pub const ILLEGAL: TokenType = "ILLEGAL";
Dec 11 10:59:57.705 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.705 INFO [stderr] 
Dec 11 10:59:57.768 INFO [stderr] warning: method is never used: `illegal`
Dec 11 10:59:57.768 INFO [stderr]   --> src/token/mod.rs:21:5
Dec 11 10:59:57.768 INFO [stderr]    |
Dec 11 10:59:57.768 INFO [stderr] 21 |     pub fn illegal() -> Token {
Dec 11 10:59:57.768 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.768 INFO [stderr]    |
Dec 11 10:59:57.768 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:59:57.768 INFO [stderr] 
Dec 11 10:59:57.768 INFO [stderr] warning: constant item is never used: `ILLEGAL`
Dec 11 10:59:57.768 INFO [stderr]   --> src/token/mod.rs:44:1
Dec 11 10:59:57.768 INFO [stderr]    |
Dec 11 10:59:57.768 INFO [stderr] 44 | pub const ILLEGAL: TokenType = "ILLEGAL";
Dec 11 10:59:57.768 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:59:57.768 INFO [stderr] 
Dec 11 10:59:57.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 11 10:59:57.817 INFO [stderr] su: No module specific data is present
Dec 11 10:59:58.265 INFO running `"docker" "inspect" "df68e5c11e74a41b8554ab6696c93874d58dd6e62ba3c429437b7262e8aa938d"`
Dec 11 10:59:58.382 INFO running `"docker" "rm" "-f" "df68e5c11e74a41b8554ab6696c93874d58dd6e62ba3c429437b7262e8aa938d"`
Dec 11 10:59:58.492 INFO [stdout] df68e5c11e74a41b8554ab6696c93874d58dd6e62ba3c429437b7262e8aa938d