[INFO] cloning repository https://github.com/AzenForze/RankedPairs
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzenForze%2FRankedPairs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 740b4c8508d02a8238a64e8c1ce77c7ab22c5723
[INFO] testing AzenForze/RankedPairs against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzenForze%2FRankedPairs" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AzenForze/RankedPairs on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-59/source/Cargo.toml
[INFO] crate git repo https://github.com/AzenForze/RankedPairs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6b9af9a2aac4bdb6d48fd15a95e2c30aaabf183e84f9ce796f88304b6b9b03c
[INFO] running `Command { std: "docker" "start" "-a" "c6b9af9a2aac4bdb6d48fd15a95e2c30aaabf183e84f9ce796f88304b6b9b03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6b9af9a2aac4bdb6d48fd15a95e2c30aaabf183e84f9ce796f88304b6b9b03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b9af9a2aac4bdb6d48fd15a95e2c30aaabf183e84f9ce796f88304b6b9b03c", kill_on_drop: false }`
[INFO] [stdout] c6b9af9a2aac4bdb6d48fd15a95e2c30aaabf183e84f9ce796f88304b6b9b03c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96d69358426fd4cab6eeea4e3020cfb960736653ff65f53791b3000315f307d
[INFO] running `Command { std: "docker" "start" "-a" "b96d69358426fd4cab6eeea4e3020cfb960736653ff65f53791b3000315f307d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ranked_pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<'a, R:'a, C:'a, Q, U> Borrow< KeyPair<Q,U> +'a > for Pair<R,C> where
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U> +'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn borrow(&self) -> &(KeyPair<Q,U>+'a)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>+'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:49:49
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> PartialEq for KeyPair<R,C> + 'a
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn eq(&self, other: &KeyPair<R,C>) -> bool
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:57:42
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> Eq for KeyPair<R,C> + 'a {}
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:59:49
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, R:Hash+?Sized, C:Hash+?Sized> Hash for KeyPair<R,C> + 'a
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:86:50
[INFO] [stdout]    |
[INFO] [stdout] 86 |         self.map.get_mut(&BPair(row, column) as &KeyPair<Q,U>)
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/table.rs:105:55
[INFO] [stdout]     |
[INFO] [stdout] 105 |         self.map.contains_key(&BPair(row, column) as &KeyPair<Q, U>)
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q, U>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/election.rs:105:30
[INFO] [stdout]     |
[INFO] [stdout] 105 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/election.rs:120:62
[INFO] [stdout]     |
[INFO] [stdout] 120 |             ElectionParseError::AmountParseError(ref e) => e.description()
[INFO] [stdout]     |                                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `or_insert`
[INFO] [stdout]    --> src/table.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn or_insert(self, val: V) -> &'a mut V
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "b96d69358426fd4cab6eeea4e3020cfb960736653ff65f53791b3000315f307d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96d69358426fd4cab6eeea4e3020cfb960736653ff65f53791b3000315f307d", kill_on_drop: false }`
[INFO] [stdout] b96d69358426fd4cab6eeea4e3020cfb960736653ff65f53791b3000315f307d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da431cd5a2fba4b8104c573387434ad9ae4c9a30edfc8e17b06d9cf1a879cd4d
[INFO] running `Command { std: "docker" "start" "-a" "da431cd5a2fba4b8104c573387434ad9ae4c9a30edfc8e17b06d9cf1a879cd4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ranked_pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<'a, R:'a, C:'a, Q, U> Borrow< KeyPair<Q,U> +'a > for Pair<R,C> where
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U> +'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn borrow(&self) -> &(KeyPair<Q,U>+'a)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>+'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:49:49
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> PartialEq for KeyPair<R,C> + 'a
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn eq(&self, other: &KeyPair<R,C>) -> bool
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:57:42
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl<'a, R:Eq+?Sized,C:Eq+?Sized> Eq for KeyPair<R,C> + 'a {}
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:59:49
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, R:Hash+?Sized, C:Hash+?Sized> Hash for KeyPair<R,C> + 'a
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<R,C> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/table.rs:86:50
[INFO] [stdout]    |
[INFO] [stdout] 86 |         self.map.get_mut(&BPair(row, column) as &KeyPair<Q,U>)
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q,U>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/table.rs:105:55
[INFO] [stdout]     |
[INFO] [stdout] 105 |         self.map.contains_key(&BPair(row, column) as &KeyPair<Q, U>)
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyPair<Q, U>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/election.rs:105:30
[INFO] [stdout]     |
[INFO] [stdout] 105 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/election.rs:120:62
[INFO] [stdout]     |
[INFO] [stdout] 120 |             ElectionParseError::AmountParseError(ref e) => e.description()
[INFO] [stdout]     |                                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `or_insert`
[INFO] [stdout]    --> src/table.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn or_insert(self, val: V) -> &'a mut V
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RankedPairsTests` should have a snake case name
[INFO] [stdout]    --> src/ranked_pairs.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 | mod RankedPairsTests
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ranked_pairs_tests`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.55s
[INFO] running `Command { std: "docker" "inspect" "da431cd5a2fba4b8104c573387434ad9ae4c9a30edfc8e17b06d9cf1a879cd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da431cd5a2fba4b8104c573387434ad9ae4c9a30edfc8e17b06d9cf1a879cd4d", kill_on_drop: false }`
[INFO] [stdout] da431cd5a2fba4b8104c573387434ad9ae4c9a30edfc8e17b06d9cf1a879cd4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a3a520fd375393a9215cd56104e1128c80a830e35ed904939a1829c1ec88ebc
[INFO] running `Command { std: "docker" "start" "-a" "1a3a520fd375393a9215cd56104e1128c80a830e35ed904939a1829c1ec88ebc", kill_on_drop: false }`
[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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/election.rs:105:30
[INFO] [stderr]     |
[INFO] [stderr] 105 |         write!(f, "{}", self.description())
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/election.rs:120:62
[INFO] [stderr]     |
[INFO] [stderr] 120 |             ElectionParseError::AmountParseError(ref e) => e.description()
[INFO] [stderr]     |                                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `or_insert`
[INFO] [stderr]    --> src/table.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn or_insert(self, val: V) -> &'a mut V
[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] warning: `ranked_pairs` (bin "ranked_pairs" test) generated 12 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ranked_pairs-b73297e47a7dcd25)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test ranked_pairs::RankedPairsTests::test_three ... ok
[INFO] [stdout] test ranked_pairs::RankedPairsTests::test_one ... ok
[INFO] [stdout] test ranked_pairs::RankedPairsTests::test_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a3a520fd375393a9215cd56104e1128c80a830e35ed904939a1829c1ec88ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a3a520fd375393a9215cd56104e1128c80a830e35ed904939a1829c1ec88ebc", kill_on_drop: false }`
[INFO] [stdout] 1a3a520fd375393a9215cd56104e1128c80a830e35ed904939a1829c1ec88ebc