Dec 12 03:07:33.233 INFO checking DomParfitt/rex against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:07:33.233 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 12 03:07:33.808 INFO [stdout] 7071c35fbe2bcbc89bd997986fb8913e36a1750e25df97ac59dfd01ee3429c6b
Dec 12 03:07:33.810 INFO running `"docker" "start" "-a" "7071c35fbe2bcbc89bd997986fb8913e36a1750e25df97ac59dfd01ee3429c6b"`
Dec 12 03:07:35.482 INFO [stderr] usermod: no changes
Dec 12 03:07:35.556 INFO [stderr]     Checking rex v0.1.0 (/source)
Dec 12 03:07:36.200 INFO [stderr] warning: unused import: `lexer::token::TokenType::Digit`
Dec 12 03:07:36.200 INFO [stderr]  --> src/lexer/mod.rs:1:5
Dec 12 03:07:36.200 INFO [stderr]   |
Dec 12 03:07:36.200 INFO [stderr] 1 | use lexer::token::TokenType::Digit;
Dec 12 03:07:36.200 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:07:36.200 INFO [stderr]   |
Dec 12 03:07:36.200 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:07:36.200 INFO [stderr] 
Dec 12 03:07:36.200 INFO [stderr] warning: unused import: `TokenType`
Dec 12 03:07:36.200 INFO [stderr]  --> src/lexer/mod.rs:2:27
Dec 12 03:07:36.200 INFO [stderr]   |
Dec 12 03:07:36.200 INFO [stderr] 2 | use lexer::token::{Token, TokenType};
Dec 12 03:07:36.200 INFO [stderr]   |                           ^^^^^^^^^
Dec 12 03:07:36.200 INFO [stderr] 
Dec 12 03:07:36.244 INFO [stderr] warning: unused import: `lexer::token::TokenType::Digit`
Dec 12 03:07:36.244 INFO [stderr]  --> src/lexer/mod.rs:1:5
Dec 12 03:07:36.244 INFO [stderr]   |
Dec 12 03:07:36.244 INFO [stderr] 1 | use lexer::token::TokenType::Digit;
Dec 12 03:07:36.244 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:07:36.244 INFO [stderr]   |
Dec 12 03:07:36.244 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:07:36.244 INFO [stderr] 
Dec 12 03:07:36.244 INFO [stderr] warning: unused import: `TokenType`
Dec 12 03:07:36.244 INFO [stderr]  --> src/lexer/mod.rs:2:27
Dec 12 03:07:36.244 INFO [stderr]   |
Dec 12 03:07:36.244 INFO [stderr] 2 | use lexer::token::{Token, TokenType};
Dec 12 03:07:36.244 INFO [stderr]   |                           ^^^^^^^^^
Dec 12 03:07:36.244 INFO [stderr] 
Dec 12 03:07:36.251 INFO [stderr] warning: variant is never constructed: `Whitespace`
Dec 12 03:07:36.251 INFO [stderr]  --> src/lexer/token/mod.rs:8:5
Dec 12 03:07:36.251 INFO [stderr]   |
Dec 12 03:07:36.251 INFO [stderr] 8 |     Whitespace,
Dec 12 03:07:36.251 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 03:07:36.251 INFO [stderr]   |
Dec 12 03:07:36.251 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:07:36.251 INFO [stderr] 
Dec 12 03:07:36.251 INFO [stderr] warning: variant is never constructed: `OpenBrace`
Dec 12 03:07:36.251 INFO [stderr]   --> src/lexer/token/mod.rs:11:5
Dec 12 03:07:36.251 INFO [stderr]    |
Dec 12 03:07:36.251 INFO [stderr] 11 |     OpenBrace,
Dec 12 03:07:36.251 INFO [stderr]    |     ^^^^^^^^^
Dec 12 03:07:36.251 INFO [stderr] 
Dec 12 03:07:36.251 INFO [stderr] warning: variant is never constructed: `CloseBrace`
Dec 12 03:07:36.251 INFO [stderr]   --> src/lexer/token/mod.rs:12:5
Dec 12 03:07:36.251 INFO [stderr]    |
Dec 12 03:07:36.251 INFO [stderr] 12 |     CloseBrace,
Dec 12 03:07:36.251 INFO [stderr]    |     ^^^^^^^^^^
Dec 12 03:07:36.251 INFO [stderr] 
Dec 12 03:07:36.251 INFO [stderr] warning: variant is never constructed: `Dash`
Dec 12 03:07:36.251 INFO [stderr]   --> src/lexer/token/mod.rs:13:5
Dec 12 03:07:36.251 INFO [stderr]    |
Dec 12 03:07:36.251 INFO [stderr] 13 |     Dash,
Dec 12 03:07:36.251 INFO [stderr]    |     ^^^^
Dec 12 03:07:36.251 INFO [stderr] 
Dec 12 03:07:36.251 INFO [stderr] warning: variant is never constructed: `Dot`
Dec 12 03:07:36.252 INFO [stderr]   --> src/lexer/token/mod.rs:14:5
Dec 12 03:07:36.252 INFO [stderr]    |
Dec 12 03:07:36.252 INFO [stderr] 14 |     Dot,
Dec 12 03:07:36.252 INFO [stderr]    |     ^^^
Dec 12 03:07:36.252 INFO [stderr] 
Dec 12 03:07:36.252 INFO [stderr] warning: variant is never constructed: `Wildcard`
Dec 12 03:07:36.252 INFO [stderr]   --> src/lexer/token/mod.rs:15:5
Dec 12 03:07:36.252 INFO [stderr]    |
Dec 12 03:07:36.252 INFO [stderr] 15 |     Wildcard,
Dec 12 03:07:36.252 INFO [stderr]    |     ^^^^^^^^
Dec 12 03:07:36.252 INFO [stderr] 
Dec 12 03:07:36.252 INFO [stderr] warning: method is never used: `is_letter`
Dec 12 03:07:36.252 INFO [stderr]   --> src/lexer/token/mod.rs:23:5
Dec 12 03:07:36.252 INFO [stderr]    |
Dec 12 03:07:36.252 INFO [stderr] 23 |     fn is_letter(ch: char) -> bool {
Dec 12 03:07:36.252 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:07:36.252 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `Whitespace`
Dec 12 03:07:36.350 INFO [stderr]  --> src/lexer/token/mod.rs:8:5
Dec 12 03:07:36.350 INFO [stderr]   |
Dec 12 03:07:36.350 INFO [stderr] 8 |     Whitespace,
Dec 12 03:07:36.350 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 03:07:36.350 INFO [stderr]   |
Dec 12 03:07:36.350 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `OpenBrace`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:11:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 11 |     OpenBrace,
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^^^^^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `CloseBrace`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:12:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 12 |     CloseBrace,
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^^^^^^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `Dash`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:13:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 13 |     Dash,
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `Dot`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:14:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 14 |     Dot,
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: variant is never constructed: `Wildcard`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:15:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 15 |     Wildcard,
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^^^^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.350 INFO [stderr] warning: method is never used: `is_letter`
Dec 12 03:07:36.350 INFO [stderr]   --> src/lexer/token/mod.rs:23:5
Dec 12 03:07:36.350 INFO [stderr]    |
Dec 12 03:07:36.350 INFO [stderr] 23 |     fn is_letter(ch: char) -> bool {
Dec 12 03:07:36.350 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:07:36.350 INFO [stderr] 
Dec 12 03:07:36.373 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 12 03:07:36.380 INFO [stderr] su: No module specific data is present
Dec 12 03:07:37.018 INFO running `"docker" "inspect" "7071c35fbe2bcbc89bd997986fb8913e36a1750e25df97ac59dfd01ee3429c6b"`
Dec 12 03:07:37.258 INFO running `"docker" "rm" "-f" "7071c35fbe2bcbc89bd997986fb8913e36a1750e25df97ac59dfd01ee3429c6b"`
Dec 12 03:07:37.443 INFO [stdout] 7071c35fbe2bcbc89bd997986fb8913e36a1750e25df97ac59dfd01ee3429c6b