Dec 17 14:46:57.329 INFO checking statechart/thot against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 14:46:57.329 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/statechart/thot:/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 14:46:57.764 INFO [stdout] 5de1d9783f9025d1d0cbfd9ce3482ffd6faf1ecd8d386219556ddd77b9520663
Dec 17 14:46:57.768 INFO running `"docker" "start" "-a" "5de1d9783f9025d1d0cbfd9ce3482ffd6faf1ecd8d386219556ddd77b9520663"`
Dec 17 14:46:59.252 INFO [stderr]    Compiling proc-macro2 v0.3.6
Dec 17 14:47:01.592 INFO [stderr]    Compiling quote v0.5.1
Dec 17 14:47:02.269 INFO [stderr]    Compiling syn v0.13.1
Dec 17 14:47:10.336 INFO [stderr]    Compiling serde_derive_internals v0.23.0
Dec 17 14:47:14.573 INFO [stderr]    Compiling serde_derive v1.0.37
Dec 17 14:47:23.984 INFO [stderr]     Checking thot_core v0.1.0 (/opt/crater/workdir/packages/thot_core)
Dec 17 14:47:28.540 INFO [stderr] warning: unused variable: `guard`
Dec 17 14:47:28.540 INFO [stderr]    --> packages/thot_core/src/ast/core/to_microstep.rs:199:44
Dec 17 14:47:28.540 INFO [stderr]     |
Dec 17 14:47:28.540 INFO [stderr] 199 | fn gen_invocations(states: &[core::State], guard: &Option<Expression>) -> Vec<Statement> {
Dec 17 14:47:28.540 INFO [stderr]     |                                            ^^^^^ help: consider using `_guard` instead
Dec 17 14:47:28.540 INFO [stderr]     |
Dec 17 14:47:28.540 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 14:47:28.540 INFO [stderr] 
Dec 17 14:47:28.863 INFO [stderr] warning: variable does not need to be mutable
Dec 17 14:47:28.863 INFO [stderr]    --> packages/thot_core/src/ast/core/to_microstep.rs:200:9
Dec 17 14:47:28.863 INFO [stderr]     |
Dec 17 14:47:28.864 INFO [stderr] 200 |     let mut statements = vec![];
Dec 17 14:47:28.864 INFO [stderr]     |         ----^^^^^^^^^^
Dec 17 14:47:28.864 INFO [stderr]     |         |
Dec 17 14:47:28.864 INFO [stderr]     |         help: remove this `mut`
Dec 17 14:47:28.865 INFO [stderr]     |
Dec 17 14:47:28.865 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 14:47:28.865 INFO [stderr] 
Dec 17 14:47:29.557 INFO [stderr]     Checking thot v0.1.0 (/opt/crater/workdir)
Dec 17 14:47:29.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.76s
Dec 17 14:47:31.111 INFO running `"docker" "inspect" "5de1d9783f9025d1d0cbfd9ce3482ffd6faf1ecd8d386219556ddd77b9520663"`
Dec 17 14:47:31.294 INFO running `"docker" "rm" "-f" "5de1d9783f9025d1d0cbfd9ce3482ffd6faf1ecd8d386219556ddd77b9520663"`
Dec 17 14:47:31.664 INFO [stdout] 5de1d9783f9025d1d0cbfd9ce3482ffd6faf1ecd8d386219556ddd77b9520663