[INFO] updating cached repository AzenForze/RankedPairs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AzenForze/RankedPairs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AzenForze/RankedPairs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/AzenForze/RankedPairs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/AzenForze/RankedPairs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AzenForze/RankedPairs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/AzenForze/RankedPairs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/AzenForze/RankedPairs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 740b4c8508d02a8238a64e8c1ce77c7ab22c5723
[INFO] sha for GitHub repo AzenForze/RankedPairs: 740b4c8508d02a8238a64e8c1ce77c7ab22c5723
[INFO] validating manifest of AzenForze/RankedPairs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AzenForze/RankedPairs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AzenForze/RankedPairs
[INFO] finished frobbing AzenForze/RankedPairs
[INFO] frobbed toml for AzenForze/RankedPairs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/AzenForze/RankedPairs/Cargo.toml
[INFO] started frobbing AzenForze/RankedPairs
[INFO] finished frobbing AzenForze/RankedPairs
[INFO] frobbed toml for AzenForze/RankedPairs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/AzenForze/RankedPairs/Cargo.toml
[INFO] crate AzenForze/RankedPairs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AzenForze/RankedPairs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/AzenForze/RankedPairs:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4dc4d120f64e50b5c4fdf1a4129c64b355171fd6d7ff5b951915932d9aac22dc
[INFO] running `"docker" "start" "-a" "4dc4d120f64e50b5c4fdf1a4129c64b355171fd6d7ff5b951915932d9aac22dc"`
[INFO] [stderr]     Checking ranked_pairs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `or_insert`
[INFO] [stderr]    --> src/table.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
[INFO] [stderr] 164 | |         where
[INFO] [stderr] 165 | |         R: Borrow<Q>,
[INFO] [stderr] 166 | |         C: Borrow<U>,
[INFO] [stderr] ...   |
[INFO] [stderr] 174 | |         }
[INFO] [stderr] 175 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `or_insert`
[INFO] [stderr]    --> src/table.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     pub fn or_insert(self, val: V) -> &'a mut V
[INFO] [stderr] 164 | |         where
[INFO] [stderr] 165 | |         R: Borrow<Q>,
[INFO] [stderr] 166 | |         C: Borrow<U>,
[INFO] [stderr] ...   |
[INFO] [stderr] 174 | |         }
[INFO] [stderr] 175 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `RankedPairsTests` should have a snake case name
[INFO] [stderr]    --> src/ranked_pairs.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 | mod RankedPairsTests
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ranked_pairs_tests`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "4dc4d120f64e50b5c4fdf1a4129c64b355171fd6d7ff5b951915932d9aac22dc"`
[INFO] running `"docker" "rm" "-f" "4dc4d120f64e50b5c4fdf1a4129c64b355171fd6d7ff5b951915932d9aac22dc"`
[INFO] [stdout] 4dc4d120f64e50b5c4fdf1a4129c64b355171fd6d7ff5b951915932d9aac22dc