Dec 19 15:12:02.833 INFO checking jhoudan/monkey-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:12:02.833 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jhoudan/monkey-rs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:12:03.290 INFO [stdout] 6c7a150a9cb2b221487cd5702fcdfea16334474f981fecd18bf30b4f6075aa54
Dec 19 15:12:03.292 INFO running `"docker" "start" "-a" "6c7a150a9cb2b221487cd5702fcdfea16334474f981fecd18bf30b4f6075aa54"`
Dec 19 15:12:05.724 INFO [stderr]     Checking monkey v0.1.0 (/opt/crater/workdir)
Dec 19 15:12:05.984 INFO [stderr] warning: unused import: `token::Token`
Dec 19 15:12:05.984 INFO [stderr]  --> src/main.rs:9:5
Dec 19 15:12:05.984 INFO [stderr]   |
Dec 19 15:12:05.984 INFO [stderr] 9 | use token::Token;
Dec 19 15:12:05.984 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 19 15:12:05.984 INFO [stderr]   |
Dec 19 15:12:05.984 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:12:05.984 INFO [stderr] 
Dec 19 15:12:05.996 INFO [stderr] warning: unused import: `token::Token`
Dec 19 15:12:05.996 INFO [stderr]  --> src/main.rs:9:5
Dec 19 15:12:05.996 INFO [stderr]   |
Dec 19 15:12:05.996 INFO [stderr] 9 | use token::Token;
Dec 19 15:12:05.996 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 19 15:12:05.996 INFO [stderr]   |
Dec 19 15:12:05.996 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:12:05.996 INFO [stderr] 
Dec 19 15:12:06.088 INFO [stderr] warning: unused variable: `lexer`
Dec 19 15:12:06.088 INFO [stderr]    --> src/lexer.rs:186:17
Dec 19 15:12:06.088 INFO [stderr]     |
Dec 19 15:12:06.088 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 19 15:12:06.088 INFO [stderr]     |                 ^^^^^ help: consider using `_lexer` instead
Dec 19 15:12:06.088 INFO [stderr]     |
Dec 19 15:12:06.088 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 15:12:06.088 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: struct is never constructed: `Program`
Dec 19 15:12:06.117 INFO [stderr]  --> src/ast.rs:7:1
Dec 19 15:12:06.117 INFO [stderr]   |
Dec 19 15:12:06.117 INFO [stderr] 7 | pub struct Program {
Dec 19 15:12:06.117 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr]   |
Dec 19 15:12:06.117 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `new`
Dec 19 15:12:06.117 INFO [stderr]   --> src/ast.rs:12:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 12 |     pub fn new() -> Program {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `token_literal`
Dec 19 15:12:06.117 INFO [stderr]   --> src/ast.rs:16:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: struct is never constructed: `Statement`
Dec 19 15:12:06.117 INFO [stderr]   --> src/ast.rs:27:1
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 27 | pub struct Statement {
Dec 19 15:12:06.117 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `token_literal`
Dec 19 15:12:06.117 INFO [stderr]   --> src/ast.rs:34:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 19 15:12:06.117 INFO [stderr]   --> src/ast.rs:39:1
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 39 | struct Expression;
Dec 19 15:12:06.117 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 19 15:12:06.117 INFO [stderr]  --> src/parser.rs:7:1
Dec 19 15:12:06.117 INFO [stderr]   |
Dec 19 15:12:06.117 INFO [stderr] 7 | pub struct Parser<'a> {
Dec 19 15:12:06.117 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:12:06.117 INFO [stderr]    --> src/lexer.rs:186:13
Dec 19 15:12:06.117 INFO [stderr]     |
Dec 19 15:12:06.117 INFO [stderr] 186 |         let mut lexer = Lexer::new(input);
Dec 19 15:12:06.117 INFO [stderr]     |             ----^^^^^
Dec 19 15:12:06.117 INFO [stderr]     |             |
Dec 19 15:12:06.117 INFO [stderr]     |             help: remove this `mut`
Dec 19 15:12:06.117 INFO [stderr]     |
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `new`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:15:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 15 |     fn new(mut lexer: Lexer) -> Parser {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `next_token`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:26:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 26 |     fn next_token(&mut self) {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `take_current_token`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:30:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 30 |     fn take_current_token(&mut self) -> Token {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `parse_program`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:34:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 34 |     fn parse_program(&mut self) -> Program {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `parse_statement`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:47:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 47 |     fn parse_statement(&mut self) -> Option<Statement> {
Dec 19 15:12:06.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.117 INFO [stderr] 
Dec 19 15:12:06.117 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 19 15:12:06.117 INFO [stderr]   --> src/parser.rs:54:5
Dec 19 15:12:06.117 INFO [stderr]    |
Dec 19 15:12:06.117 INFO [stderr] 54 |     fn parse_let_statement(&mut self) -> Option<Statement> {
Dec 19 15:12:06.118 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.118 INFO [stderr] 
Dec 19 15:12:06.118 INFO [stderr] warning: method is never used: `token_literal`
Dec 19 15:12:06.118 INFO [stderr]   --> src/ast.rs:16:5
Dec 19 15:12:06.118 INFO [stderr]    |
Dec 19 15:12:06.118 INFO [stderr] 16 |     fn token_literal(&self) -> String {
Dec 19 15:12:06.118 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.118 INFO [stderr]    |
Dec 19 15:12:06.118 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 15:12:06.118 INFO [stderr] 
Dec 19 15:12:06.118 INFO [stderr] warning: method is never used: `token_literal`
Dec 19 15:12:06.118 INFO [stderr]   --> src/ast.rs:34:5
Dec 19 15:12:06.118 INFO [stderr]    |
Dec 19 15:12:06.118 INFO [stderr] 34 |     fn token_literal(&self) -> String {
Dec 19 15:12:06.118 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.118 INFO [stderr] 
Dec 19 15:12:06.118 INFO [stderr] warning: struct is never constructed: `Expression`
Dec 19 15:12:06.118 INFO [stderr]   --> src/ast.rs:39:1
Dec 19 15:12:06.118 INFO [stderr]    |
Dec 19 15:12:06.118 INFO [stderr] 39 | struct Expression;
Dec 19 15:12:06.118 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 15:12:06.118 INFO [stderr] 
Dec 19 15:12:06.209 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 19 15:12:07.100 INFO running `"docker" "inspect" "6c7a150a9cb2b221487cd5702fcdfea16334474f981fecd18bf30b4f6075aa54"`
Dec 19 15:12:07.462 INFO running `"docker" "rm" "-f" "6c7a150a9cb2b221487cd5702fcdfea16334474f981fecd18bf30b4f6075aa54"`
Dec 19 15:12:07.748 INFO [stdout] 6c7a150a9cb2b221487cd5702fcdfea16334474f981fecd18bf30b4f6075aa54