Dec 12 03:49:34.401 INFO checking AzenForze/RankedPairs against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:49:34.401 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 03:49:34.916 INFO [stdout] c80b195957ef230f3dd20155b11c9a611eb04c8de5b2bbb3a5f8a1f577a23736
Dec 12 03:49:34.918 INFO running `"docker" "start" "-a" "c80b195957ef230f3dd20155b11c9a611eb04c8de5b2bbb3a5f8a1f577a23736"`
Dec 12 03:49:36.875 INFO [stderr] usermod: no changes
Dec 12 03:49:36.945 INFO [stderr]     Checking ranked_pairs v0.1.0 (/source)
Dec 12 03:49:38.672 INFO [stderr] warning: method is never used: `or_insert`
Dec 12 03:49:38.672 INFO [stderr]    --> src/table.rs:163:5
Dec 12 03:49:38.672 INFO [stderr]     |
Dec 12 03:49:38.672 INFO [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
Dec 12 03:49:38.672 INFO [stderr] 164 | |         where
Dec 12 03:49:38.672 INFO [stderr] 165 | |         R: Borrow<Q>,
Dec 12 03:49:38.672 INFO [stderr] 166 | |         C: Borrow<U>,
Dec 12 03:49:38.672 INFO [stderr] ...   |
Dec 12 03:49:38.672 INFO [stderr] 174 | |         }
Dec 12 03:49:38.672 INFO [stderr] 175 | |     }
Dec 12 03:49:38.672 INFO [stderr]     | |_____^
Dec 12 03:49:38.672 INFO [stderr]     |
Dec 12 03:49:38.672 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:49:38.672 INFO [stderr] 
Dec 12 03:49:38.776 INFO [stderr] warning: method is never used: `or_insert`
Dec 12 03:49:38.776 INFO [stderr]    --> src/table.rs:163:5
Dec 12 03:49:38.776 INFO [stderr]     |
Dec 12 03:49:38.776 INFO [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
Dec 12 03:49:38.776 INFO [stderr] 164 | |         where
Dec 12 03:49:38.776 INFO [stderr] 165 | |         R: Borrow<Q>,
Dec 12 03:49:38.776 INFO [stderr] 166 | |         C: Borrow<U>,
Dec 12 03:49:38.776 INFO [stderr] ...   |
Dec 12 03:49:38.776 INFO [stderr] 174 | |         }
Dec 12 03:49:38.776 INFO [stderr] 175 | |     }
Dec 12 03:49:38.776 INFO [stderr]     | |_____^
Dec 12 03:49:38.776 INFO [stderr]     |
Dec 12 03:49:38.777 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:49:38.777 INFO [stderr] 
Dec 12 03:49:38.777 INFO [stderr] warning: module `RankedPairsTests` should have a snake case name such as `ranked_pairs_tests`
Dec 12 03:49:38.777 INFO [stderr]    --> src/ranked_pairs.rs:110:1
Dec 12 03:49:38.777 INFO [stderr]     |
Dec 12 03:49:38.777 INFO [stderr] 110 | / mod RankedPairsTests
Dec 12 03:49:38.777 INFO [stderr] 111 | | {
Dec 12 03:49:38.777 INFO [stderr] 112 | |     use super::*;
Dec 12 03:49:38.777 INFO [stderr] 113 | |
Dec 12 03:49:38.777 INFO [stderr] ...   |
Dec 12 03:49:38.777 INFO [stderr] 180 | |     }
Dec 12 03:49:38.777 INFO [stderr] 181 | | }
Dec 12 03:49:38.777 INFO [stderr]     | |_^
Dec 12 03:49:38.777 INFO [stderr]     |
Dec 12 03:49:38.777 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 12 03:49:38.777 INFO [stderr] 
Dec 12 03:49:38.828 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
Dec 12 03:49:38.830 INFO [stderr] su: No module specific data is present
Dec 12 03:49:39.832 INFO running `"docker" "inspect" "c80b195957ef230f3dd20155b11c9a611eb04c8de5b2bbb3a5f8a1f577a23736"`
Dec 12 03:49:40.230 INFO running `"docker" "rm" "-f" "c80b195957ef230f3dd20155b11c9a611eb04c8de5b2bbb3a5f8a1f577a23736"`
Dec 12 03:49:40.601 INFO [stdout] c80b195957ef230f3dd20155b11c9a611eb04c8de5b2bbb3a5f8a1f577a23736