Dec 17 23:11:53.090 INFO checking hukumka/interactives against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 23:11:53.090 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/hukumka/interactives:/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 23:11:53.574 INFO [stdout] 69c7aeda3d172389ecb9943df57b47c8858f9f9a2393af18e8dd884fdfd97b79
Dec 17 23:11:53.584 INFO running `"docker" "start" "-a" "69c7aeda3d172389ecb9943df57b47c8858f9f9a2393af18e8dd884fdfd97b79"`
Dec 17 23:11:55.365 INFO [stderr]     Checking strfmt v0.1.6
Dec 17 23:11:55.365 INFO [stderr]     Checking hamt-rs v0.3.0
Dec 17 23:11:56.596 INFO [stderr]     Checking interactive_c v0.1.0 (/opt/crater/workdir)
Dec 17 23:12:01.742 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:12:01.742 INFO [stderr]     --> src/syntax_tree.rs:800:17
Dec 17 23:12:01.742 INFO [stderr]      |
Dec 17 23:12:01.742 INFO [stderr] 800  |             let mut $walker_name = _tree.walker();
Dec 17 23:12:01.742 INFO [stderr]      |                 ----^^^^^^^^^^^^
Dec 17 23:12:01.742 INFO [stderr]      |                 |
Dec 17 23:12:01.742 INFO [stderr]      |                 help: remove this `mut`
Dec 17 23:12:01.742 INFO [stderr] ...
Dec 17 23:12:01.742 INFO [stderr] 1344 |         new_walker!{let mut walker = "int x=0; int x(int a){return a + 4; for(int i=0; i<a; ++i) a += 3 * 4;}";}
Dec 17 23:12:01.742 INFO [stderr]      |         -------------------------------------------------------------------------------------------------------- in this macro invocation
Dec 17 23:12:01.742 INFO [stderr]      |
Dec 17 23:12:01.742 INFO [stderr]      = note: #[warn(unused_mut)] on by default
Dec 17 23:12:01.742 INFO [stderr] 
Dec 17 23:12:01.889 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.65s
Dec 17 23:12:02.728 INFO running `"docker" "inspect" "69c7aeda3d172389ecb9943df57b47c8858f9f9a2393af18e8dd884fdfd97b79"`
Dec 17 23:12:03.030 INFO running `"docker" "rm" "-f" "69c7aeda3d172389ecb9943df57b47c8858f9f9a2393af18e8dd884fdfd97b79"`
Dec 17 23:12:03.344 INFO [stdout] 69c7aeda3d172389ecb9943df57b47c8858f9f9a2393af18e8dd884fdfd97b79