[INFO] cloning repository DomParfitt/rex
[INFO] running `"git" "clone" "--bare" "git://github.com/DomParfitt/rex.git" "work/cache/sources/gh/DomParfitt/rex"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/DomParfitt/rex'...
[INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/rex" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/DomParfitt/rex"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/DomParfitt/rex'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/rex" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/DomParfitt/rex"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/DomParfitt/rex'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 81a4dd2ca4d3cfbb8d07fd9c6849062f8fc4d4eb
[INFO] sha for GitHub repo DomParfitt/rex: 81a4dd2ca4d3cfbb8d07fd9c6849062f8fc4d4eb
[INFO] validating manifest of DomParfitt/rex on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DomParfitt/rex on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing DomParfitt/rex
[INFO] finished frobbing DomParfitt/rex
[INFO] frobbed toml for DomParfitt/rex written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/DomParfitt/rex/Cargo.toml
[INFO] started frobbing DomParfitt/rex
[INFO] finished frobbing DomParfitt/rex
[INFO] frobbed toml for DomParfitt/rex written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/DomParfitt/rex/Cargo.toml
[INFO] crate DomParfitt/rex has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking DomParfitt/rex against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-0/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/DomParfitt/rex:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d04777161207dfd8eec6236ac6cb7fc91d6ab4e4288a347aba16476482000a4a
[INFO] running `"docker" "start" "-a" "d04777161207dfd8eec6236ac6cb7fc91d6ab4e4288a347aba16476482000a4a"`
[INFO] [stderr]     Checking rex v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `lexer::token::TokenType::Digit`
[INFO] [stderr]  --> src/lexer/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use lexer::token::TokenType::Digit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenType`
[INFO] [stderr]  --> src/lexer/mod.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use lexer::token::{Token, TokenType};
[INFO] [stderr]   |                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::token::TokenType::Digit`
[INFO] [stderr]  --> src/lexer/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use lexer::token::TokenType::Digit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenType`
[INFO] [stderr]  --> src/lexer/mod.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use lexer::token::{Token, TokenType};
[INFO] [stderr]   |                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Whitespace`
[INFO] [stderr]  --> src/lexer/token/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Whitespace,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpenBrace`
[INFO] [stderr]   --> src/lexer/token/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     OpenBrace,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CloseBrace`
[INFO] [stderr]   --> src/lexer/token/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     CloseBrace,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dash`
[INFO] [stderr]   --> src/lexer/token/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Dash,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dot`
[INFO] [stderr]   --> src/lexer/token/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Dot,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Wildcard`
[INFO] [stderr]   --> src/lexer/token/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Wildcard,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_letter`
[INFO] [stderr]   --> src/lexer/token/mod.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn is_letter(ch: char) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Whitespace`
[INFO] [stderr]  --> src/lexer/token/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Whitespace,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpenBrace`
[INFO] [stderr]   --> src/lexer/token/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     OpenBrace,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CloseBrace`
[INFO] [stderr]   --> src/lexer/token/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     CloseBrace,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dash`
[INFO] [stderr]   --> src/lexer/token/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Dash,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dot`
[INFO] [stderr]   --> src/lexer/token/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Dot,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Wildcard`
[INFO] [stderr]   --> src/lexer/token/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Wildcard,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_letter`
[INFO] [stderr]   --> src/lexer/token/mod.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn is_letter(ch: char) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "d04777161207dfd8eec6236ac6cb7fc91d6ab4e4288a347aba16476482000a4a"`
[INFO] running `"docker" "rm" "-f" "d04777161207dfd8eec6236ac6cb7fc91d6ab4e4288a347aba16476482000a4a"`
[INFO] [stdout] d04777161207dfd8eec6236ac6cb7fc91d6ab4e4288a347aba16476482000a4a