Dec 19 09:35:58.801 INFO checking ryanyz10/toy_lang against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:35:58.801 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ryanyz10/toy_lang:/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 09:35:59.186 INFO [stdout] 1ab43720d29c8977f508c6dd2d41e098001f856f8301048f607991c6ab4cecfe
Dec 19 09:35:59.191 INFO running `"docker" "start" "-a" "1ab43720d29c8977f508c6dd2d41e098001f856f8301048f607991c6ab4cecfe"`
Dec 19 09:36:00.800 INFO [stderr]     Checking toy_lang v0.1.0 (/opt/crater/workdir)
Dec 19 09:36:01.212 INFO [stderr] warning: variant is never constructed: `ILLEGAL`
Dec 19 09:36:01.212 INFO [stderr]  --> src/token.rs:3:5
Dec 19 09:36:01.212 INFO [stderr]   |
Dec 19 09:36:01.212 INFO [stderr] 3 |     ILLEGAL,
Dec 19 09:36:01.212 INFO [stderr]   |     ^^^^^^^
Dec 19 09:36:01.212 INFO [stderr]   |
Dec 19 09:36:01.212 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 09:36:01.212 INFO [stderr] 
Dec 19 09:36:01.212 INFO [stderr] warning: variant is never constructed: `EOF`
Dec 19 09:36:01.212 INFO [stderr]  --> src/token.rs:4:5
Dec 19 09:36:01.212 INFO [stderr]   |
Dec 19 09:36:01.212 INFO [stderr] 4 |     EOF,
Dec 19 09:36:01.212 INFO [stderr]   |     ^^^
Dec 19 09:36:01.212 INFO [stderr] 
Dec 19 09:36:01.212 INFO [stderr] warning: variant is never constructed: `IDENT`
Dec 19 09:36:01.212 INFO [stderr]  --> src/token.rs:5:5
Dec 19 09:36:01.212 INFO [stderr]   |
Dec 19 09:36:01.212 INFO [stderr] 5 |     IDENT(String),
Dec 19 09:36:01.212 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 09:36:01.212 INFO [stderr] 
Dec 19 09:36:01.216 INFO [stderr] warning: variant is never constructed: `INT`
Dec 19 09:36:01.216 INFO [stderr]  --> src/token.rs:6:5
Dec 19 09:36:01.216 INFO [stderr]   |
Dec 19 09:36:01.216 INFO [stderr] 6 |     INT(i64),
Dec 19 09:36:01.216 INFO [stderr]   |     ^^^^^^^^
Dec 19 09:36:01.216 INFO [stderr] 
Dec 19 09:36:01.216 INFO [stderr] warning: variant is never constructed: `ASSIGN`
Dec 19 09:36:01.216 INFO [stderr]  --> src/token.rs:7:5
Dec 19 09:36:01.216 INFO [stderr]   |
Dec 19 09:36:01.216 INFO [stderr] 7 |     ASSIGN,
Dec 19 09:36:01.216 INFO [stderr]   |     ^^^^^^
Dec 19 09:36:01.216 INFO [stderr] 
Dec 19 09:36:01.216 INFO [stderr] warning: variant is never constructed: `PLUS`
Dec 19 09:36:01.216 INFO [stderr]  --> src/token.rs:8:5
Dec 19 09:36:01.216 INFO [stderr]   |
Dec 19 09:36:01.216 INFO [stderr] 8 |     PLUS,
Dec 19 09:36:01.216 INFO [stderr]   |     ^^^^
Dec 19 09:36:01.216 INFO [stderr] 
Dec 19 09:36:01.216 INFO [stderr] warning: variant is never constructed: `COMMA`
Dec 19 09:36:01.216 INFO [stderr]  --> src/token.rs:9:5
Dec 19 09:36:01.216 INFO [stderr]   |
Dec 19 09:36:01.216 INFO [stderr] 9 |     COMMA,
Dec 19 09:36:01.216 INFO [stderr]   |     ^^^^^
Dec 19 09:36:01.216 INFO [stderr] 
Dec 19 09:36:01.216 INFO [stderr] warning: variant is never constructed: `SEMICOLON`
Dec 19 09:36:01.216 INFO [stderr]   --> src/token.rs:10:5
Dec 19 09:36:01.216 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 10 |     SEMICOLON,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `LPAREN`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:11:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 11 |     LPAREN,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `RPAREN`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:12:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 12 |     RPAREN,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `LBRACE`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:13:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 13 |     LBRACE,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `RBRACE`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:14:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 14 |     RBRACE,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `FUNCTION`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:15:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 15 |     FUNCTION,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: variant is never constructed: `LET`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:16:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 16 |     LET,
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: struct is never constructed: `Token`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:20:1
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 20 | pub struct Token {
Dec 19 09:36:01.217 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: function is never used: `get_token_type`
Dec 19 09:36:01.217 INFO [stderr]   --> src/token.rs:24:1
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 24 | pub fn get_token_type(literal: String) -> TokenType {
Dec 19 09:36:01.217 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: function is never used: `parse`
Dec 19 09:36:01.217 INFO [stderr]  --> src/lexer.rs:9:1
Dec 19 09:36:01.217 INFO [stderr]   |
Dec 19 09:36:01.217 INFO [stderr] 9 | pub fn parse<'a>(source: &str) -> Vec<Token> {
Dec 19 09:36:01.217 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: struct is never constructed: `Lexer`
Dec 19 09:36:01.217 INFO [stderr]   --> src/lexer.rs:23:1
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 23 | struct Lexer<'a> {
Dec 19 09:36:01.217 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: method is never used: `new`
Dec 19 09:36:01.217 INFO [stderr]   --> src/lexer.rs:31:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 31 |     fn new(source: &'a str) -> Self {
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: method is never used: `next_token`
Dec 19 09:36:01.217 INFO [stderr]   --> src/lexer.rs:44:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 44 |     fn next_token(&self) -> Token {
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: method is never used: `read_char`
Dec 19 09:36:01.217 INFO [stderr]   --> src/lexer.rs:79:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 79 |     fn read_char(&self) {
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.217 INFO [stderr] warning: method is never used: `read_identifier`
Dec 19 09:36:01.217 INFO [stderr]   --> src/lexer.rs:92:5
Dec 19 09:36:01.217 INFO [stderr]    |
Dec 19 09:36:01.217 INFO [stderr] 92 |     fn read_identifier(&self) -> &str {
Dec 19 09:36:01.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.217 INFO [stderr] 
Dec 19 09:36:01.218 INFO [stderr] warning: method is never used: `read_number`
Dec 19 09:36:01.218 INFO [stderr]    --> src/lexer.rs:106:5
Dec 19 09:36:01.218 INFO [stderr]     |
Dec 19 09:36:01.218 INFO [stderr] 106 |     fn read_number(&self) -> i64 {
Dec 19 09:36:01.218 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.218 INFO [stderr] 
Dec 19 09:36:01.218 INFO [stderr] warning: method is never used: `is_letter`
Dec 19 09:36:01.218 INFO [stderr]    --> src/lexer.rs:125:5
Dec 19 09:36:01.218 INFO [stderr]     |
Dec 19 09:36:01.218 INFO [stderr] 125 |     fn is_letter(&self) -> bool {
Dec 19 09:36:01.218 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.218 INFO [stderr] 
Dec 19 09:36:01.218 INFO [stderr] warning: method is never used: `skip_whitespace`
Dec 19 09:36:01.218 INFO [stderr]    --> src/lexer.rs:129:5
Dec 19 09:36:01.218 INFO [stderr]     |
Dec 19 09:36:01.218 INFO [stderr] 129 |     fn skip_whitespace(&self) {
Dec 19 09:36:01.218 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:36:01.218 INFO [stderr] 
Dec 19 09:36:01.565 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 19 09:36:02.620 INFO running `"docker" "inspect" "1ab43720d29c8977f508c6dd2d41e098001f856f8301048f607991c6ab4cecfe"`
Dec 19 09:36:02.874 INFO running `"docker" "rm" "-f" "1ab43720d29c8977f508c6dd2d41e098001f856f8301048f607991c6ab4cecfe"`
Dec 19 09:36:03.116 INFO [stdout] 1ab43720d29c8977f508c6dd2d41e098001f856f8301048f607991c6ab4cecfe