Dec 11 06:10:30.970 INFO checking whothey/firstfollow against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 06:10:30.970 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 06:10:31.340 INFO [stdout] 5531bb94f85952a110017b22c46c8722cd0d4af82bb2521608f9fb67da0394c2
Dec 11 06:10:31.348 INFO running `"docker" "start" "-a" "5531bb94f85952a110017b22c46c8722cd0d4af82bb2521608f9fb67da0394c2"`
Dec 11 06:10:32.715 INFO [stderr] usermod: no changes
Dec 11 06:10:32.801 INFO [stderr]     Checking libc v0.2.26
Dec 11 06:10:32.801 INFO [stderr]     Checking regex-syntax v0.4.1
Dec 11 06:10:32.802 INFO [stderr]     Checking thread_local v0.3.4
Dec 11 06:10:34.660 INFO [stderr]     Checking memchr v1.0.1
Dec 11 06:10:35.159 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 11 06:10:35.887 INFO [stderr]     Checking regex v0.2.2
Dec 11 06:10:37.891 INFO [stderr]     Checking env_logger v0.4.3
Dec 11 06:10:38.330 INFO [stderr]     Checking firstfollow v0.1.0 (/source)
Dec 11 06:10:38.952 INFO [stderr] warning: method is never used: `is_terminal`
Dec 11 06:10:38.952 INFO [stderr]   --> src/formalgrammar/symbol.rs:10:5
Dec 11 06:10:38.952 INFO [stderr]    |
Dec 11 06:10:38.952 INFO [stderr] 10 |     pub fn is_terminal(&self) -> bool {
Dec 11 06:10:38.952 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:10:38.952 INFO [stderr]    |
Dec 11 06:10:38.952 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:10:38.952 INFO [stderr] 
Dec 11 06:10:38.952 INFO [stderr] warning: method is never used: `is_nonterminal`
Dec 11 06:10:38.952 INFO [stderr]   --> src/formalgrammar/symbol.rs:17:5
Dec 11 06:10:38.952 INFO [stderr]    |
Dec 11 06:10:38.952 INFO [stderr] 17 |     pub fn is_nonterminal(&self) -> bool {
Dec 11 06:10:38.952 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:10:38.952 INFO [stderr] 
Dec 11 06:10:39.244 INFO [stderr] warning: method is never used: `is_terminal`
Dec 11 06:10:39.244 INFO [stderr]   --> src/formalgrammar/symbol.rs:10:5
Dec 11 06:10:39.244 INFO [stderr]    |
Dec 11 06:10:39.244 INFO [stderr] 10 |     pub fn is_terminal(&self) -> bool {
Dec 11 06:10:39.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:10:39.244 INFO [stderr]    |
Dec 11 06:10:39.244 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:10:39.244 INFO [stderr] 
Dec 11 06:10:39.244 INFO [stderr] warning: method is never used: `is_nonterminal`
Dec 11 06:10:39.244 INFO [stderr]   --> src/formalgrammar/symbol.rs:17:5
Dec 11 06:10:39.244 INFO [stderr]    |
Dec 11 06:10:39.244 INFO [stderr] 17 |     pub fn is_nonterminal(&self) -> bool {
Dec 11 06:10:39.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:10:39.244 INFO [stderr] 
Dec 11 06:10:39.277 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.54s
Dec 11 06:10:39.287 INFO [stderr] su: No module specific data is present
Dec 11 06:10:40.404 INFO running `"docker" "inspect" "5531bb94f85952a110017b22c46c8722cd0d4af82bb2521608f9fb67da0394c2"`
Dec 11 06:10:40.670 INFO running `"docker" "rm" "-f" "5531bb94f85952a110017b22c46c8722cd0d4af82bb2521608f9fb67da0394c2"`
Dec 11 06:10:40.980 INFO [stdout] 5531bb94f85952a110017b22c46c8722cd0d4af82bb2521608f9fb67da0394c2