Dec 11 08:04:14.543 INFO checking terakun/syntactic_monoid against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 08:04:14.543 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 08:04:14.762 INFO [stdout] bc65d72e47fcc9f120fb9a30e1594b7f529d0ebdb90b7923f3a9f59c972de282
Dec 11 08:04:14.764 INFO running `"docker" "start" "-a" "bc65d72e47fcc9f120fb9a30e1594b7f529d0ebdb90b7923f3a9f59c972de282"`
Dec 11 08:04:15.194 INFO [stderr] usermod: no changes
Dec 11 08:04:15.236 INFO [stderr]     Checking bit-set v0.4.0
Dec 11 08:04:15.530 INFO [stderr]     Checking syntactic_monoid v0.1.0 (/source)
Dec 11 08:04:15.660 INFO [stderr] warning: unused import: `regex::RegularExpression`
Dec 11 08:04:15.660 INFO [stderr]  --> src/syntactic_monoid.rs:2:5
Dec 11 08:04:15.660 INFO [stderr]   |
Dec 11 08:04:15.660 INFO [stderr] 2 | use regex::RegularExpression;
Dec 11 08:04:15.660 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.660 INFO [stderr]   |
Dec 11 08:04:15.660 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:04:15.660 INFO [stderr] 
Dec 11 08:04:15.686 INFO [stderr] warning: unused import: `regex::RegularExpression`
Dec 11 08:04:15.686 INFO [stderr]  --> src/syntactic_monoid.rs:2:5
Dec 11 08:04:15.686 INFO [stderr]   |
Dec 11 08:04:15.686 INFO [stderr] 2 | use regex::RegularExpression;
Dec 11 08:04:15.686 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.686 INFO [stderr]   |
Dec 11 08:04:15.686 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:04:15.686 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: variant is never constructed: `Empty`
Dec 11 08:04:15.992 INFO [stderr]  --> src/regex.rs:3:5
Dec 11 08:04:15.992 INFO [stderr]   |
Dec 11 08:04:15.992 INFO [stderr] 3 |     Empty,
Dec 11 08:04:15.992 INFO [stderr]   |     ^^^^^
Dec 11 08:04:15.992 INFO [stderr]   |
Dec 11 08:04:15.992 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: variant is never constructed: `Epsilon`
Dec 11 08:04:15.992 INFO [stderr]  --> src/regex.rs:4:5
Dec 11 08:04:15.992 INFO [stderr]   |
Dec 11 08:04:15.992 INFO [stderr] 4 |     Epsilon,
Dec 11 08:04:15.992 INFO [stderr]   |     ^^^^^^^
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: method is never used: `print_trans`
Dec 11 08:04:15.992 INFO [stderr]   --> src/nfa.rs:32:5
Dec 11 08:04:15.992 INFO [stderr]    |
Dec 11 08:04:15.992 INFO [stderr] 32 |     pub fn print_trans(&self) {
Dec 11 08:04:15.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: method is never used: `to_graphviz`
Dec 11 08:04:15.992 INFO [stderr]    --> src/nfa.rs:253:5
Dec 11 08:04:15.992 INFO [stderr]     |
Dec 11 08:04:15.992 INFO [stderr] 253 |     pub fn to_graphviz(&self) {
Dec 11 08:04:15.992 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: method is never used: `set_trans`
Dec 11 08:04:15.992 INFO [stderr]   --> src/dfa.rs:23:5
Dec 11 08:04:15.992 INFO [stderr]    |
Dec 11 08:04:15.992 INFO [stderr] 23 |     pub fn set_trans(&mut self, transition: &Vec<i32>) {
Dec 11 08:04:15.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: method is never used: `add_trans`
Dec 11 08:04:15.992 INFO [stderr]   --> src/dfa.rs:29:5
Dec 11 08:04:15.992 INFO [stderr]    |
Dec 11 08:04:15.992 INFO [stderr] 29 |     pub fn add_trans(&mut self, id: i32, ch: usize) {
Dec 11 08:04:15.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.992 INFO [stderr] 
Dec 11 08:04:15.992 INFO [stderr] warning: method is never used: `print_trans`
Dec 11 08:04:15.993 INFO [stderr]   --> src/dfa.rs:32:5
Dec 11 08:04:15.993 INFO [stderr]    |
Dec 11 08:04:15.993 INFO [stderr] 32 |     pub fn print_trans(&self) {
Dec 11 08:04:15.993 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.993 INFO [stderr] 
Dec 11 08:04:15.993 INFO [stderr] warning: method is never used: `print_subset`
Dec 11 08:04:15.993 INFO [stderr]   --> src/dfa.rs:71:5
Dec 11 08:04:15.993 INFO [stderr]    |
Dec 11 08:04:15.993 INFO [stderr] 71 |     pub fn print_subset(subset: &SubSet) {
Dec 11 08:04:15.993 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.993 INFO [stderr] 
Dec 11 08:04:15.993 INFO [stderr] warning: method is never used: `accept`
Dec 11 08:04:15.993 INFO [stderr]    --> src/dfa.rs:227:5
Dec 11 08:04:15.993 INFO [stderr]     |
Dec 11 08:04:15.993 INFO [stderr] 227 |     pub fn accept(&self, input: &Vec<u8>) -> bool {
Dec 11 08:04:15.993 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.993 INFO [stderr] 
Dec 11 08:04:15.993 INFO [stderr] warning: field is never used: `alphabets`
Dec 11 08:04:15.993 INFO [stderr]   --> src/syntactic_monoid.rs:75:5
Dec 11 08:04:15.993 INFO [stderr]    |
Dec 11 08:04:15.993 INFO [stderr] 75 |     alphabets: BitSet,
Dec 11 08:04:15.993 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 11 08:04:15.993 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: variant is never constructed: `Empty`
Dec 11 08:04:16.027 INFO [stderr]  --> src/regex.rs:3:5
Dec 11 08:04:16.027 INFO [stderr]   |
Dec 11 08:04:16.027 INFO [stderr] 3 |     Empty,
Dec 11 08:04:16.027 INFO [stderr]   |     ^^^^^
Dec 11 08:04:16.027 INFO [stderr]   |
Dec 11 08:04:16.027 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: variant is never constructed: `Epsilon`
Dec 11 08:04:16.027 INFO [stderr]  --> src/regex.rs:4:5
Dec 11 08:04:16.027 INFO [stderr]   |
Dec 11 08:04:16.027 INFO [stderr] 4 |     Epsilon,
Dec 11 08:04:16.027 INFO [stderr]   |     ^^^^^^^
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: method is never used: `print_trans`
Dec 11 08:04:16.027 INFO [stderr]   --> src/nfa.rs:32:5
Dec 11 08:04:16.027 INFO [stderr]    |
Dec 11 08:04:16.027 INFO [stderr] 32 |     pub fn print_trans(&self) {
Dec 11 08:04:16.027 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: method is never used: `to_graphviz`
Dec 11 08:04:16.027 INFO [stderr]    --> src/nfa.rs:253:5
Dec 11 08:04:16.027 INFO [stderr]     |
Dec 11 08:04:16.027 INFO [stderr] 253 |     pub fn to_graphviz(&self) {
Dec 11 08:04:16.027 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: method is never used: `set_trans`
Dec 11 08:04:16.027 INFO [stderr]   --> src/dfa.rs:23:5
Dec 11 08:04:16.027 INFO [stderr]    |
Dec 11 08:04:16.027 INFO [stderr] 23 |     pub fn set_trans(&mut self, transition: &Vec<i32>) {
Dec 11 08:04:16.027 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.027 INFO [stderr] warning: method is never used: `add_trans`
Dec 11 08:04:16.027 INFO [stderr]   --> src/dfa.rs:29:5
Dec 11 08:04:16.027 INFO [stderr]    |
Dec 11 08:04:16.027 INFO [stderr] 29 |     pub fn add_trans(&mut self, id: i32, ch: usize) {
Dec 11 08:04:16.027 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.027 INFO [stderr] 
Dec 11 08:04:16.028 INFO [stderr] warning: method is never used: `print_trans`
Dec 11 08:04:16.028 INFO [stderr]   --> src/dfa.rs:32:5
Dec 11 08:04:16.028 INFO [stderr]    |
Dec 11 08:04:16.028 INFO [stderr] 32 |     pub fn print_trans(&self) {
Dec 11 08:04:16.028 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.028 INFO [stderr] 
Dec 11 08:04:16.028 INFO [stderr] warning: method is never used: `print_subset`
Dec 11 08:04:16.028 INFO [stderr]   --> src/dfa.rs:71:5
Dec 11 08:04:16.028 INFO [stderr]    |
Dec 11 08:04:16.028 INFO [stderr] 71 |     pub fn print_subset(subset: &SubSet) {
Dec 11 08:04:16.028 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.028 INFO [stderr] 
Dec 11 08:04:16.028 INFO [stderr] warning: method is never used: `accept`
Dec 11 08:04:16.028 INFO [stderr]    --> src/dfa.rs:227:5
Dec 11 08:04:16.028 INFO [stderr]     |
Dec 11 08:04:16.028 INFO [stderr] 227 |     pub fn accept(&self, input: &Vec<u8>) -> bool {
Dec 11 08:04:16.028 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.028 INFO [stderr] 
Dec 11 08:04:16.028 INFO [stderr] warning: field is never used: `alphabets`
Dec 11 08:04:16.028 INFO [stderr]   --> src/syntactic_monoid.rs:75:5
Dec 11 08:04:16.028 INFO [stderr]    |
Dec 11 08:04:16.028 INFO [stderr] 75 |     alphabets: BitSet,
Dec 11 08:04:16.028 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 11 08:04:16.028 INFO [stderr] 
Dec 11 08:04:16.043 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 11 08:04:16.053 INFO [stderr] su: No module specific data is present
Dec 11 08:04:16.333 INFO running `"docker" "inspect" "bc65d72e47fcc9f120fb9a30e1594b7f529d0ebdb90b7923f3a9f59c972de282"`
Dec 11 08:04:16.430 INFO running `"docker" "rm" "-f" "bc65d72e47fcc9f120fb9a30e1594b7f529d0ebdb90b7923f3a9f59c972de282"`
Dec 11 08:04:16.506 INFO [stdout] bc65d72e47fcc9f120fb9a30e1594b7f529d0ebdb90b7923f3a9f59c972de282