Dec 19 18:37:30.294 INFO checking cstorey/gll-experiments against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:37:30.294 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/cstorey/gll-experiments:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:37:30.744 INFO [stdout] e3cbd693002961bfc07957e6b39d7818439cd89e3cd6166106f940100a72dff9
Dec 19 18:37:30.746 INFO running `"docker" "start" "-a" "e3cbd693002961bfc07957e6b39d7818439cd89e3cd6166106f940100a72dff9"`
Dec 19 18:37:32.133 INFO [stderr]     Checking gll-examples v0.1.0 (/opt/crater/workdir)
Dec 19 18:37:32.835 INFO [stderr] warning: variable does not need to be mutable
Dec 19 18:37:32.835 INFO [stderr]    --> src/main.rs:102:17
Dec 19 18:37:32.835 INFO [stderr]     |
Dec 19 18:37:32.835 INFO [stderr] 102 |             let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new);
Dec 19 18:37:32.835 INFO [stderr]     |                 ----^^^^^
Dec 19 18:37:32.835 INFO [stderr]     |                 |
Dec 19 18:37:32.835 INFO [stderr]     |                 help: remove this `mut`
Dec 19 18:37:32.835 INFO [stderr]     |
Dec 19 18:37:32.835 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 18:37:32.835 INFO [stderr] 
Dec 19 18:37:32.842 INFO [stderr] warning: variable does not need to be mutable
Dec 19 18:37:32.842 INFO [stderr]    --> src/main.rs:102:17
Dec 19 18:37:32.842 INFO [stderr]     |
Dec 19 18:37:32.842 INFO [stderr] 102 |             let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new);
Dec 19 18:37:32.842 INFO [stderr]     |                 ----^^^^^
Dec 19 18:37:32.842 INFO [stderr]     |                 |
Dec 19 18:37:32.842 INFO [stderr]     |                 help: remove this `mut`
Dec 19 18:37:32.842 INFO [stderr]     |
Dec 19 18:37:32.842 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 18:37:32.842 INFO [stderr] 
Dec 19 18:37:32.848 INFO [stderr] warning: type alias is never used: `Stack`
Dec 19 18:37:32.852 INFO [stderr]   --> src/main.rs:42:1
Dec 19 18:37:32.852 INFO [stderr]    |
Dec 19 18:37:32.852 INFO [stderr] 42 | type Stack = VecDeque<Extlbl>;
Dec 19 18:37:32.852 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:37:32.852 INFO [stderr]    |
Dec 19 18:37:32.852 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 18:37:32.852 INFO [stderr] 
Dec 19 18:37:32.855 INFO [stderr] warning: type alias is never used: `Stack`
Dec 19 18:37:32.855 INFO [stderr]   --> src/main.rs:42:1
Dec 19 18:37:32.855 INFO [stderr]    |
Dec 19 18:37:32.855 INFO [stderr] 42 | type Stack = VecDeque<Extlbl>;
Dec 19 18:37:32.855 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:37:32.855 INFO [stderr]    |
Dec 19 18:37:32.855 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 18:37:32.855 INFO [stderr] 
Dec 19 18:37:32.894 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 19 18:37:33.754 INFO running `"docker" "inspect" "e3cbd693002961bfc07957e6b39d7818439cd89e3cd6166106f940100a72dff9"`
Dec 19 18:37:34.067 INFO running `"docker" "rm" "-f" "e3cbd693002961bfc07957e6b39d7818439cd89e3cd6166106f940100a72dff9"`
Dec 19 18:37:34.352 INFO [stdout] e3cbd693002961bfc07957e6b39d7818439cd89e3cd6166106f940100a72dff9