Dec 17 23:23:49.759 INFO checking haumea-lang/haumea-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 23:23:49.759 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:23:50.176 INFO [stdout] 4c870f5de8b84143b27ce70817351b7b3281fdc462dc10ddc113a9595a830efc
Dec 17 23:23:50.178 INFO running `"docker" "start" "-a" "4c870f5de8b84143b27ce70817351b7b3281fdc462dc10ddc113a9595a830efc"`
Dec 17 23:23:51.788 INFO [stderr]     Checking haumea v0.1.0 (/opt/crater/workdir)
Dec 17 23:23:52.650 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:52.650 INFO [stderr]    --> src/parser.rs:179:16
Dec 17 23:23:52.651 INFO [stderr]     |
Dec 17 23:23:52.651 INFO [stderr] 179 | fn match_token(mut token_stream: &mut Vec<Token>, expected: &Token) -> Result<Token, Token> {
Dec 17 23:23:52.651 INFO [stderr]     |                ----^^^^^^^^^^^^
Dec 17 23:23:52.652 INFO [stderr]     |                |
Dec 17 23:23:52.652 INFO [stderr]     |                help: remove this `mut`
Dec 17 23:23:52.652 INFO [stderr]     |
Dec 17 23:23:52.652 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:23:52.653 INFO [stderr] 
Dec 17 23:23:52.667 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:52.667 INFO [stderr]    --> src/parser.rs:339:18
Dec 17 23:23:52.668 INFO [stderr]     |
Dec 17 23:23:52.668 INFO [stderr] 339 | fn parse_declare(mut token_stream: &mut Vec<Token>) -> Statement {
Dec 17 23:23:52.668 INFO [stderr]     |                  ----^^^^^^^^^^^^
Dec 17 23:23:52.668 INFO [stderr]     |                  |
Dec 17 23:23:52.669 INFO [stderr]     |                  help: remove this `mut`
Dec 17 23:23:52.669 INFO [stderr] 
Dec 17 23:23:52.748 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:52.748 INFO [stderr]    --> src/parser.rs:179:16
Dec 17 23:23:52.748 INFO [stderr]     |
Dec 17 23:23:52.748 INFO [stderr] 179 | fn match_token(mut token_stream: &mut Vec<Token>, expected: &Token) -> Result<Token, Token> {
Dec 17 23:23:52.748 INFO [stderr]     |                ----^^^^^^^^^^^^
Dec 17 23:23:52.748 INFO [stderr]     |                |
Dec 17 23:23:52.748 INFO [stderr]     |                help: remove this `mut`
Dec 17 23:23:52.748 INFO [stderr]     |
Dec 17 23:23:52.748 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:23:52.748 INFO [stderr] 
Dec 17 23:23:52.769 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:23:52.770 INFO [stderr]    --> src/parser.rs:339:18
Dec 17 23:23:52.770 INFO [stderr]     |
Dec 17 23:23:52.770 INFO [stderr] 339 | fn parse_declare(mut token_stream: &mut Vec<Token>) -> Statement {
Dec 17 23:23:52.770 INFO [stderr]     |                  ----^^^^^^^^^^^^
Dec 17 23:23:52.770 INFO [stderr]     |                  |
Dec 17 23:23:52.770 INFO [stderr]     |                  help: remove this `mut`
Dec 17 23:23:52.778 INFO [stderr] 
Dec 17 23:23:53.764 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
Dec 17 23:23:54.426 INFO running `"docker" "inspect" "4c870f5de8b84143b27ce70817351b7b3281fdc462dc10ddc113a9595a830efc"`
Dec 17 23:23:54.605 INFO running `"docker" "rm" "-f" "4c870f5de8b84143b27ce70817351b7b3281fdc462dc10ddc113a9595a830efc"`
Dec 17 23:23:54.760 INFO [stdout] 4c870f5de8b84143b27ce70817351b7b3281fdc462dc10ddc113a9595a830efc