Dec 17 16:58:05.470 INFO checking riku179/monkey-lang-rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 16:58:05.470 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/riku179/monkey-lang-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:58:05.663 INFO [stdout] 6fffad091b1a95ab9c2154847379c2eaf805b4da70e4f9ba94a67862e846182c
Dec 17 16:58:05.666 INFO running `"docker" "start" "-a" "6fffad091b1a95ab9c2154847379c2eaf805b4da70e4f9ba94a67862e846182c"`
Dec 17 16:58:06.344 INFO [stderr]     Checking ascii v0.9.1
Dec 17 16:58:06.905 INFO [stderr]     Checking monkey_lang v0.1.0 (/opt/crater/workdir)
Dec 17 16:58:07.143 INFO [stderr] warning: enum is never used: `Statement`
Dec 17 16:58:07.143 INFO [stderr]  --> src/ast/mod.rs:8:1
Dec 17 16:58:07.143 INFO [stderr]   |
Dec 17 16:58:07.143 INFO [stderr] 8 | pub enum Statement {
Dec 17 16:58:07.143 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr]   |
Dec 17 16:58:07.143 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.143 INFO [stderr] warning: enum is never used: `Expression`
Dec 17 16:58:07.143 INFO [stderr]   --> src/ast/mod.rs:25:1
Dec 17 16:58:07.143 INFO [stderr]    |
Dec 17 16:58:07.143 INFO [stderr] 25 | pub enum Expression {
Dec 17 16:58:07.143 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.143 INFO [stderr] warning: struct is never constructed: `Program`
Dec 17 16:58:07.143 INFO [stderr]   --> src/ast/mod.rs:38:1
Dec 17 16:58:07.143 INFO [stderr]    |
Dec 17 16:58:07.143 INFO [stderr] 38 | pub struct Program {
Dec 17 16:58:07.143 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.143 INFO [stderr] warning: method is never used: `new`
Dec 17 16:58:07.143 INFO [stderr]   --> src/ast/mod.rs:43:5
Dec 17 16:58:07.143 INFO [stderr]    |
Dec 17 16:58:07.143 INFO [stderr] 43 |     pub fn new() -> Program {
Dec 17 16:58:07.143 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.143 INFO [stderr] warning: struct is never constructed: `LetStatement`
Dec 17 16:58:07.143 INFO [stderr]   --> src/ast/mod.rs:61:1
Dec 17 16:58:07.143 INFO [stderr]    |
Dec 17 16:58:07.143 INFO [stderr] 61 | pub struct LetStatement {
Dec 17 16:58:07.143 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.143 INFO [stderr] warning: struct is never constructed: `ReturnStatement`
Dec 17 16:58:07.143 INFO [stderr]   --> src/ast/mod.rs:74:1
Dec 17 16:58:07.143 INFO [stderr]    |
Dec 17 16:58:07.143 INFO [stderr] 74 | pub struct ReturnStatement {
Dec 17 16:58:07.143 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.143 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: struct is never constructed: `ExpressionStatement`
Dec 17 16:58:07.144 INFO [stderr]   --> src/ast/mod.rs:86:1
Dec 17 16:58:07.144 INFO [stderr]    |
Dec 17 16:58:07.144 INFO [stderr] 86 | pub struct ExpressionStatement {
Dec 17 16:58:07.144 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: struct is never constructed: `Identifier`
Dec 17 16:58:07.144 INFO [stderr]   --> src/ast/mod.rs:98:1
Dec 17 16:58:07.144 INFO [stderr]    |
Dec 17 16:58:07.144 INFO [stderr] 98 | pub struct Identifier {
Dec 17 16:58:07.144 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 17 16:58:07.144 INFO [stderr]  --> src/parser/mod.rs:9:1
Dec 17 16:58:07.144 INFO [stderr]   |
Dec 17 16:58:07.144 INFO [stderr] 9 | struct Parser<'a> {
Dec 17 16:58:07.144 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: method is never used: `new`
Dec 17 16:58:07.144 INFO [stderr]   --> src/parser/mod.rs:18:5
Dec 17 16:58:07.144 INFO [stderr]    |
Dec 17 16:58:07.144 INFO [stderr] 18 |     fn new(lex: &'a mut lexer::Lexer) -> Parser<'a> {
Dec 17 16:58:07.144 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: method is never used: `next_token`
Dec 17 16:58:07.144 INFO [stderr]   --> src/parser/mod.rs:29:5
Dec 17 16:58:07.144 INFO [stderr]    |
Dec 17 16:58:07.144 INFO [stderr] 29 |     fn next_token(&mut self) {
Dec 17 16:58:07.144 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.144 INFO [stderr] warning: method is never used: `parse_program`
Dec 17 16:58:07.144 INFO [stderr]   --> src/parser/mod.rs:34:5
Dec 17 16:58:07.144 INFO [stderr]    |
Dec 17 16:58:07.144 INFO [stderr] 34 |     fn parse_program(&mut self) -> ast::Program {
Dec 17 16:58:07.144 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.144 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `parse_statement`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:45:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 45 |     fn parse_statement(&mut self) -> Option<Statement> {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:53:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 53 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `parse_return_statement`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:77:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 77 |     fn parse_return_statement(&mut self) -> Option<Statement> {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `cur_token_is`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:91:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 91 |     fn cur_token_is(&self, tok: token::TokenType) -> bool {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `peek_token_is`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:95:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 95 |     fn peek_token_is(&self, tok: token::TokenType) -> bool {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `expect_peek`
Dec 17 16:58:07.145 INFO [stderr]   --> src/parser/mod.rs:99:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 99 |     fn expect_peek(&mut self, tok: token::TokenType) -> bool {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `peek_error`
Dec 17 16:58:07.145 INFO [stderr]    --> src/parser/mod.rs:109:5
Dec 17 16:58:07.145 INFO [stderr]     |
Dec 17 16:58:07.145 INFO [stderr] 109 |     fn peek_error(&mut self, tok: token::TokenType) {
Dec 17 16:58:07.145 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: method is never used: `illegal`
Dec 17 16:58:07.145 INFO [stderr]   --> src/token/mod.rs:21:5
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 21 |     pub fn illegal() -> Token {
Dec 17 16:58:07.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.145 INFO [stderr] warning: constant item is never used: `ILLEGAL`
Dec 17 16:58:07.145 INFO [stderr]   --> src/token/mod.rs:44:1
Dec 17 16:58:07.145 INFO [stderr]    |
Dec 17 16:58:07.145 INFO [stderr] 44 | pub const ILLEGAL: TokenType = "ILLEGAL";
Dec 17 16:58:07.145 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.145 INFO [stderr] 
Dec 17 16:58:07.273 INFO [stderr] warning: variant is never constructed: `Expression`
Dec 17 16:58:07.273 INFO [stderr]   --> src/ast/mod.rs:11:5
Dec 17 16:58:07.273 INFO [stderr]    |
Dec 17 16:58:07.273 INFO [stderr] 11 |     Expression(ExpressionStatement),
Dec 17 16:58:07.273 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.273 INFO [stderr]    |
Dec 17 16:58:07.273 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 16:58:07.273 INFO [stderr] 
Dec 17 16:58:07.273 INFO [stderr] warning: variant is never constructed: `Identifier`
Dec 17 16:58:07.273 INFO [stderr]   --> src/ast/mod.rs:26:5
Dec 17 16:58:07.273 INFO [stderr]    |
Dec 17 16:58:07.273 INFO [stderr] 26 |     Identifier(Identifier)
Dec 17 16:58:07.273 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.273 INFO [stderr] 
Dec 17 16:58:07.273 INFO [stderr] warning: method is never used: `illegal`
Dec 17 16:58:07.273 INFO [stderr]   --> src/token/mod.rs:21:5
Dec 17 16:58:07.273 INFO [stderr]    |
Dec 17 16:58:07.273 INFO [stderr] 21 |     pub fn illegal() -> Token {
Dec 17 16:58:07.273 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.273 INFO [stderr] 
Dec 17 16:58:07.273 INFO [stderr] warning: constant item is never used: `ILLEGAL`
Dec 17 16:58:07.273 INFO [stderr]   --> src/token/mod.rs:44:1
Dec 17 16:58:07.273 INFO [stderr]    |
Dec 17 16:58:07.273 INFO [stderr] 44 | pub const ILLEGAL: TokenType = "ILLEGAL";
Dec 17 16:58:07.273 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:58:07.273 INFO [stderr] 
Dec 17 16:58:07.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 17 16:58:07.525 INFO running `"docker" "inspect" "6fffad091b1a95ab9c2154847379c2eaf805b4da70e4f9ba94a67862e846182c"`
Dec 17 16:58:07.589 INFO running `"docker" "rm" "-f" "6fffad091b1a95ab9c2154847379c2eaf805b4da70e4f9ba94a67862e846182c"`
Dec 17 16:58:07.694 INFO [stdout] 6fffad091b1a95ab9c2154847379c2eaf805b4da70e4f9ba94a67862e846182c