Dec 18 14:38:00.951 INFO checking kravl-parser-0.3.3 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:38:00.951 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/kravl-parser/0.3.3:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:38:01.268 INFO [stdout] 20c655b53a04a1679b18c2a9b01d611a21fb70c3464aea86d74630601949798c
Dec 18 14:38:01.280 INFO running `"docker" "start" "-a" "20c655b53a04a1679b18c2a9b01d611a21fb70c3464aea86d74630601949798c"`
Dec 18 14:38:02.116 INFO [stderr]     Checking kravl-parser v0.3.3 (/opt/crater/workdir)
Dec 18 14:38:02.604 INFO [stderr] warning: unused variable: `stack`
Dec 18 14:38:02.604 INFO [stderr]   --> src/syntax/mod.rs:46:13
Dec 18 14:38:02.604 INFO [stderr]    |
Dec 18 14:38:02.604 INFO [stderr] 46 |         let stack = parser.parse_full();
Dec 18 14:38:02.604 INFO [stderr]    |             ^^^^^ help: consider using `_stack` instead
Dec 18 14:38:02.604 INFO [stderr]    |
Dec 18 14:38:02.604 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 14:38:02.604 INFO [stderr] 
Dec 18 14:38:02.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:38:02.684 INFO [stderr]   --> src/syntax/mod.rs:13:9
Dec 18 14:38:02.684 INFO [stderr]    |
Dec 18 14:38:02.684 INFO [stderr] 13 | /         lexer.tokenize(String::from("
Dec 18 14:38:02.684 INFO [stderr] 14 | |             define fib_sum(a -> int, b -> int) -> int
Dec 18 14:38:02.684 INFO [stderr] 15 | |                 if a + b <= 2
Dec 18 14:38:02.684 INFO [stderr] 16 | |                     return c
Dec 18 14:38:02.684 INFO [stderr] ...  |
Dec 18 14:38:02.684 INFO [stderr] 20 | |             end
Dec 18 14:38:02.684 INFO [stderr] 21 | |         "));
Dec 18 14:38:02.684 INFO [stderr]    | |____________^
Dec 18 14:38:02.684 INFO [stderr]    |
Dec 18 14:38:02.684 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 14:38:02.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:38:02.684 INFO [stderr] 
Dec 18 14:38:02.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:38:02.684 INFO [stderr]   --> src/syntax/mod.rs:33:9
Dec 18 14:38:02.684 INFO [stderr]    |
Dec 18 14:38:02.684 INFO [stderr] 33 | /         lexer.tokenize(String::from("
Dec 18 14:38:02.684 INFO [stderr] 34 | |             foo = \"hey aywa\"
Dec 18 14:38:02.685 INFO [stderr] 35 | |             foo = 22.2
Dec 18 14:38:02.685 INFO [stderr] 36 | |
Dec 18 14:38:02.685 INFO [stderr] ...  |
Dec 18 14:38:02.685 INFO [stderr] 41 | |             sum = 1337 - 2 - 10.2 * 100
Dec 18 14:38:02.685 INFO [stderr] 42 | |         "));
Dec 18 14:38:02.685 INFO [stderr]    | |____________^
Dec 18 14:38:02.685 INFO [stderr]    |
Dec 18 14:38:02.685 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:38:02.685 INFO [stderr] 
Dec 18 14:38:02.707 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 18 14:38:03.166 INFO running `"docker" "inspect" "20c655b53a04a1679b18c2a9b01d611a21fb70c3464aea86d74630601949798c"`
Dec 18 14:38:03.310 INFO running `"docker" "rm" "-f" "20c655b53a04a1679b18c2a9b01d611a21fb70c3464aea86d74630601949798c"`
Dec 18 14:38:03.518 INFO [stdout] 20c655b53a04a1679b18c2a9b01d611a21fb70c3464aea86d74630601949798c