Dec 17 23:23:48.716 INFO checking haumea-lang/haumea-rs against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 23:23:48.716 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/haumea-lang/haumea-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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:23:49.104 INFO [stdout] 56154140d4eae6c2d2e8ed0de5d9ca3e36f0424c7fbdb4072f9cb0015123b471
Dec 17 23:23:49.106 INFO running `"docker" "start" "-a" "56154140d4eae6c2d2e8ed0de5d9ca3e36f0424c7fbdb4072f9cb0015123b471"`
Dec 17 23:23:50.392 INFO [stderr]     Checking haumea v0.1.0 (/opt/crater/workdir)
Dec 17 23:23:51.184 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:51.184 INFO [stderr]    --> src/parser.rs:179:16
Dec 17 23:23:51.184 INFO [stderr]     |
Dec 17 23:23:51.184 INFO [stderr] 179 | fn match_token(mut token_stream: &mut Vec<Token>, expected: &Token) -> Result<Token, Token> {
Dec 17 23:23:51.184 INFO [stderr]     |                ----^^^^^^^^^^^^
Dec 17 23:23:51.184 INFO [stderr]     |                |
Dec 17 23:23:51.184 INFO [stderr]     |                help: remove this `mut`
Dec 17 23:23:51.184 INFO [stderr]     |
Dec 17 23:23:51.184 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:23:51.184 INFO [stderr] 
Dec 17 23:23:51.236 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:51.236 INFO [stderr]    --> src/parser.rs:339:18
Dec 17 23:23:51.236 INFO [stderr]     |
Dec 17 23:23:51.236 INFO [stderr] 339 | fn parse_declare(mut token_stream: &mut Vec<Token>) -> Statement {
Dec 17 23:23:51.236 INFO [stderr]     |                  ----^^^^^^^^^^^^
Dec 17 23:23:51.236 INFO [stderr]     |                  |
Dec 17 23:23:51.236 INFO [stderr]     |                  help: remove this `mut`
Dec 17 23:23:51.236 INFO [stderr] 
Dec 17 23:23:51.796 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:51.796 INFO [stderr]    --> src/parser.rs:179:16
Dec 17 23:23:51.796 INFO [stderr]     |
Dec 17 23:23:51.796 INFO [stderr] 179 | fn match_token(mut token_stream: &mut Vec<Token>, expected: &Token) -> Result<Token, Token> {
Dec 17 23:23:51.796 INFO [stderr]     |                ----^^^^^^^^^^^^
Dec 17 23:23:51.796 INFO [stderr]     |                |
Dec 17 23:23:51.796 INFO [stderr]     |                help: remove this `mut`
Dec 17 23:23:51.796 INFO [stderr]     |
Dec 17 23:23:51.796 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:23:51.796 INFO [stderr] 
Dec 17 23:23:51.848 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:51.848 INFO [stderr]    --> src/parser.rs:339:18
Dec 17 23:23:51.848 INFO [stderr]     |
Dec 17 23:23:51.848 INFO [stderr] 339 | fn parse_declare(mut token_stream: &mut Vec<Token>) -> Statement {
Dec 17 23:23:51.848 INFO [stderr]     |                  ----^^^^^^^^^^^^
Dec 17 23:23:51.848 INFO [stderr]     |                  |
Dec 17 23:23:51.848 INFO [stderr]     |                  help: remove this `mut`
Dec 17 23:23:51.848 INFO [stderr] 
Dec 17 23:23:52.781 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
Dec 17 23:23:53.824 INFO running `"docker" "inspect" "56154140d4eae6c2d2e8ed0de5d9ca3e36f0424c7fbdb4072f9cb0015123b471"`
Dec 17 23:23:54.072 INFO running `"docker" "rm" "-f" "56154140d4eae6c2d2e8ed0de5d9ca3e36f0424c7fbdb4072f9cb0015123b471"`
Dec 17 23:23:54.392 INFO [stdout] 56154140d4eae6c2d2e8ed0de5d9ca3e36f0424c7fbdb4072f9cb0015123b471