Dec 12 03:49:29.045 INFO checking AzenForze/RankedPairs against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 03:49:29.045 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 12 03:49:29.520 INFO [stdout] e34661a7b91bdfb1d7ea99db2bbbf54e04c67bcf0e0c86108d92d64683b39be4
Dec 12 03:49:29.522 INFO running `"docker" "start" "-a" "e34661a7b91bdfb1d7ea99db2bbbf54e04c67bcf0e0c86108d92d64683b39be4"`
Dec 12 03:49:31.615 INFO [stderr] usermod: no changes
Dec 12 03:49:31.712 INFO [stderr]     Checking ranked_pairs v0.1.0 (/source)
Dec 12 03:49:32.888 INFO [stderr] warning: method is never used: `or_insert`
Dec 12 03:49:32.888 INFO [stderr]    --> src/table.rs:163:5
Dec 12 03:49:32.888 INFO [stderr]     |
Dec 12 03:49:32.888 INFO [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
Dec 12 03:49:32.888 INFO [stderr] 164 | |         where
Dec 12 03:49:32.888 INFO [stderr] 165 | |         R: Borrow<Q>,
Dec 12 03:49:32.888 INFO [stderr] 166 | |         C: Borrow<U>,
Dec 12 03:49:32.888 INFO [stderr] ...   |
Dec 12 03:49:32.888 INFO [stderr] 174 | |         }
Dec 12 03:49:32.888 INFO [stderr] 175 | |     }
Dec 12 03:49:32.888 INFO [stderr]     | |_____^
Dec 12 03:49:32.888 INFO [stderr]     |
Dec 12 03:49:32.888 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:49:32.888 INFO [stderr] 
Dec 12 03:49:33.190 INFO [stderr] warning: method is never used: `or_insert`
Dec 12 03:49:33.190 INFO [stderr]    --> src/table.rs:163:5
Dec 12 03:49:33.190 INFO [stderr]     |
Dec 12 03:49:33.190 INFO [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
Dec 12 03:49:33.190 INFO [stderr] 164 | |         where
Dec 12 03:49:33.190 INFO [stderr] 165 | |         R: Borrow<Q>,
Dec 12 03:49:33.190 INFO [stderr] 166 | |         C: Borrow<U>,
Dec 12 03:49:33.190 INFO [stderr] ...   |
Dec 12 03:49:33.190 INFO [stderr] 174 | |         }
Dec 12 03:49:33.190 INFO [stderr] 175 | |     }
Dec 12 03:49:33.190 INFO [stderr]     | |_____^
Dec 12 03:49:33.190 INFO [stderr]     |
Dec 12 03:49:33.190 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:49:33.191 INFO [stderr] 
Dec 12 03:49:33.191 INFO [stderr] warning: module `RankedPairsTests` should have a snake case name such as `ranked_pairs_tests`
Dec 12 03:49:33.191 INFO [stderr]    --> src/ranked_pairs.rs:110:1
Dec 12 03:49:33.191 INFO [stderr]     |
Dec 12 03:49:33.191 INFO [stderr] 110 | / mod RankedPairsTests
Dec 12 03:49:33.191 INFO [stderr] 111 | | {
Dec 12 03:49:33.191 INFO [stderr] 112 | |     use super::*;
Dec 12 03:49:33.191 INFO [stderr] 113 | |
Dec 12 03:49:33.191 INFO [stderr] ...   |
Dec 12 03:49:33.191 INFO [stderr] 180 | |     }
Dec 12 03:49:33.191 INFO [stderr] 181 | | }
Dec 12 03:49:33.191 INFO [stderr]     | |_^
Dec 12 03:49:33.191 INFO [stderr]     |
Dec 12 03:49:33.191 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 12 03:49:33.191 INFO [stderr] 
Dec 12 03:49:33.216 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Dec 12 03:49:33.220 INFO [stderr] su: No module specific data is present
Dec 12 03:49:34.010 INFO running `"docker" "inspect" "e34661a7b91bdfb1d7ea99db2bbbf54e04c67bcf0e0c86108d92d64683b39be4"`
Dec 12 03:49:34.352 INFO running `"docker" "rm" "-f" "e34661a7b91bdfb1d7ea99db2bbbf54e04c67bcf0e0c86108d92d64683b39be4"`
Dec 12 03:49:34.806 INFO [stdout] e34661a7b91bdfb1d7ea99db2bbbf54e04c67bcf0e0c86108d92d64683b39be4