[INFO] cloning repository https://github.com/AzenForze/RankedPairs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AzenForze/RankedPairs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzenForze%2FRankedPairs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzenForze%2FRankedPairs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 740b4c8508d02a8238a64e8c1ce77c7ab22c5723
[INFO] checking AzenForze/RankedPairs against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzenForze%2FRankedPairs" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AzenForze/RankedPairs on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AzenForze/RankedPairs
[INFO] finished tweaking git repo https://github.com/AzenForze/RankedPairs
[INFO] tweaked toml for git repo https://github.com/AzenForze/RankedPairs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/AzenForze/RankedPairs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c5c3edbe1502d598b5b461b16bda096561dfb0d7679c8bcce08ef1cd639d75e
[INFO] running `"docker" "start" "-a" "5c5c3edbe1502d598b5b461b16bda096561dfb0d7679c8bcce08ef1cd639d75e"`
[INFO] [stderr]     Checking ranked_pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 | impl<'a, R:'a, C:'a, Q, U> Borrow< KeyPair<Q,U> +'a > for Pair<R,C> where
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U> +'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:43:27
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn borrow(&self) -> &(KeyPair<Q,U>+'a)
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:49:49
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> PartialEq for KeyPair<R,C> + 'a
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:51:26
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn eq(&self, other: &KeyPair<R,C>) -> bool
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:57:42
[INFO] [stderr]    |
[INFO] [stderr] 57 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> Eq for KeyPair<R,C> + 'a {}
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:59:49
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl<'a, R:Hash+?Sized, C:Hash+?Sized> Hash for KeyPair<R,C> + 'a
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:86:50
[INFO] [stderr]    |
[INFO] [stderr] 86 |         self.map.get_mut(&BPair(row, column) as &KeyPair<Q,U>)
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/table.rs:105:55
[INFO] [stderr]     |
[INFO] [stderr] 105 |         self.map.contains_key(&BPair(row, column) as &KeyPair<Q, U>)
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q, U>`
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 | impl<'a, R:'a, C:'a, Q, U> Borrow< KeyPair<Q,U> +'a > for Pair<R,C> where
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U> +'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:43:27
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn borrow(&self) -> &(KeyPair<Q,U>+'a)
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:49:49
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> PartialEq for KeyPair<R,C> + 'a
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:51:26
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn eq(&self, other: &KeyPair<R,C>) -> bool
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:57:42
[INFO] [stderr]    |
[INFO] [stderr] 57 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> Eq for KeyPair<R,C> + 'a {}
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:59:49
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl<'a, R:Hash+?Sized, C:Hash+?Sized> Hash for KeyPair<R,C> + 'a
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/table.rs:86:50
[INFO] [stderr]    |
[INFO] [stderr] 86 |         self.map.get_mut(&BPair(row, column) as &KeyPair<Q,U>)
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/table.rs:105:55
[INFO] [stderr]     |
[INFO] [stderr] 105 |         self.map.contains_key(&BPair(row, column) as &KeyPair<Q, U>)
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q, U>`
[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 1.22s
[INFO] running `"docker" "inspect" "5c5c3edbe1502d598b5b461b16bda096561dfb0d7679c8bcce08ef1cd639d75e"`
[INFO] running `"docker" "rm" "-f" "5c5c3edbe1502d598b5b461b16bda096561dfb0d7679c8bcce08ef1cd639d75e"`
[INFO] [stdout] 5c5c3edbe1502d598b5b461b16bda096561dfb0d7679c8bcce08ef1cd639d75e