[INFO] cloning repository https://github.com/tsych0/cf_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsych0/cf_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ade7bfa67e9c689bc05431130d728a961e9bb3c
[INFO] checking tsych0/cf_rust against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsych0/cf_rust
[INFO] finished tweaking git repo https://github.com/tsych0/cf_rust
[INFO] tweaked toml for git repo https://github.com/tsych0/cf_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsych0/cf_rust on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsych0/cf_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ddbd91b7ac261c9f2c91af9a1923537cb500a06d0b1ed79c025326afe8a28c6
[INFO] running `Command { std: "docker" "start" "-a" "3ddbd91b7ac261c9f2c91af9a1923537cb500a06d0b1ed79c025326afe8a28c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ddbd91b7ac261c9f2c91af9a1923537cb500a06d0b1ed79c025326afe8a28c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddbd91b7ac261c9f2c91af9a1923537cb500a06d0b1ed79c025326afe8a28c6", kill_on_drop: false }`
[INFO] [stdout] 3ddbd91b7ac261c9f2c91af9a1923537cb500a06d0b1ed79c025326afe8a28c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9127ab32b939c6b1b9a8f089a97c6f66a1d3316571767bf4c57ede0406074454
[INFO] running `Command { std: "docker" "start" "-a" "9127ab32b939c6b1b9a8f089a97c6f66a1d3316571767bf4c57ede0406074454", kill_on_drop: false }`
[INFO] [stderr]     Checking cp_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:291:17
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn iter(&self) -> MultiIter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn iter(&self) -> MultiIter<'_, K, V> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:301:21
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn iter_mut(&mut self) -> MultiIterMut<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn iter_mut(&mut self) -> MultiIterMut<'_, K, V> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn entry(&mut self, k: K) -> Entry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn entry(&mut self, k: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib/indexmap.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn entry(&mut self, key: K) -> Entry<K, V> {
[INFO] [stdout]    |                  ^^^^^^^^^             ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn entry(&mut self, key: K) -> Entry<'_, K, V> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:581:17
[INFO] [stdout]     |
[INFO] [stdout] 581 |     pub fn iter(&self) -> Iter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 581 |     pub fn iter(&self) -> Iter<'_, K, V> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:616:21
[INFO] [stdout]     |
[INFO] [stdout] 616 |     pub fn iter_mut(&mut self) -> IterMut<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 616 |     pub fn iter_mut(&mut self) -> IterMut<'_, K, V> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:641:21
[INFO] [stdout]     |
[INFO] [stdout] 641 |     pub fn iter_all(&self) -> IterAll<K, Vec<V>> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 641 |     pub fn iter_all(&self) -> IterAll<'_, K, Vec<V>> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:670:25
[INFO] [stdout]     |
[INFO] [stdout] 670 |     pub fn iter_all_mut(&mut self) -> IterAllMut<K, Vec<V>> {
[INFO] [stdout]     |                         ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 670 |     pub fn iter_all_mut(&mut self) -> IterAllMut<'_, K, Vec<V>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:750:18
[INFO] [stdout]     |
[INFO] [stdout] 750 |     pub fn entry(&mut self, k: K) -> Entry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 750 |     pub fn entry(&mut self, k: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:291:17
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn iter(&self) -> MultiIter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn iter(&self) -> MultiIter<'_, K, V> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:301:21
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn iter_mut(&mut self) -> MultiIterMut<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn iter_mut(&mut self) -> MultiIterMut<'_, K, V> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/btreemultimap.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn entry(&mut self, k: K) -> Entry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn entry(&mut self, k: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib/indexmap.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn entry(&mut self, key: K) -> Entry<K, V> {
[INFO] [stdout]    |                  ^^^^^^^^^             ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn entry(&mut self, key: K) -> Entry<'_, K, V> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:581:17
[INFO] [stdout]     |
[INFO] [stdout] 581 |     pub fn iter(&self) -> Iter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 581 |     pub fn iter(&self) -> Iter<'_, K, V> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:616:21
[INFO] [stdout]     |
[INFO] [stdout] 616 |     pub fn iter_mut(&mut self) -> IterMut<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 616 |     pub fn iter_mut(&mut self) -> IterMut<'_, K, V> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:641:21
[INFO] [stdout]     |
[INFO] [stdout] 641 |     pub fn iter_all(&self) -> IterAll<K, Vec<V>> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 641 |     pub fn iter_all(&self) -> IterAll<'_, K, Vec<V>> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:670:25
[INFO] [stdout]     |
[INFO] [stdout] 670 |     pub fn iter_all_mut(&mut self) -> IterAllMut<K, Vec<V>> {
[INFO] [stdout]     |                         ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 670 |     pub fn iter_all_mut(&mut self) -> IterAllMut<'_, K, Vec<V>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/multimap.rs:750:18
[INFO] [stdout]     |
[INFO] [stdout] 750 |     pub fn entry(&mut self, k: K) -> Entry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 750 |     pub fn entry(&mut self, k: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3311-grid-coloring-i.rs:53:39
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn next_cell((x, y): (usize, usize), (n, m): (usize, usize)) -> (usize, usize) {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1073-towers.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/11-a-increasing-sequence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1621-distinct-numbers.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1833-b-restore-the-weather.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         (mut b): [isize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -         (mut b): [isize]
[INFO] [stdout] 14 +         mut b: [isize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1469-b-red-and-blue.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/1469-b-red-and-blue.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         m: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1091-concert-tickets.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, m]: [usize; 2], ticket_price: [usize], budgets: [usize]) -> Lines<CPResult<usize, i8>> {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/cses-1091-concert-tickets.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, m]: [usize; 2], ticket_price: [usize], budgets: [usize]) -> Lines<CPResult<usize, i8>> {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1475-a-odd-divisor.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |        (mut n): usize
[INFO] [stdout]    |        ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -        (mut n): usize
[INFO] [stdout] 11 +        mut n: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3420-distinct-values-subarrays.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1631-reading-books.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1090-ferris-wheel.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut p): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut p): [usize]
[INFO] [stdout] 11 +         mut p: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3421-distinct-values-subsequences.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1661-subarray-sums-ii.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, x]: [isize; 2], a: [isize]) -> usize {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1748-increasing-subsequence-ii.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/cses-1748-increasing-subsequence-ii.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         a: [usize]
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1033-a-king-escape.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1084-apartments.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize],
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize],
[INFO] [stdout] 11 +         mut a: [usize],
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1084-apartments.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut b): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut b): [usize]
[INFO] [stdout] 12 +         mut b: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SepLeft` is never constructed
[INFO] [stdout]   --> src/bin/cses-2413-counting-towers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Extend {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     SepLeft = 3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/2025-c-new-game.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [n, k]: [usize; 2],
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> src/bin/aoj-1001-binary-tree-intersection-and-union.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [op, a, b]: [String; 3]
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bin/aoj-1001-binary-tree-intersection-and-union.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [op, a, b]: [String; 3]
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/764-b-timofey-and-cubes.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [isize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [isize]
[INFO] [stdout] 11 +         mut a: [isize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1094-increasing-array.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/814-a-an-abandoned-sentiment-from-past.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         (mut a): [usize],
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         (mut a): [usize],
[INFO] [stdout] 13 +         mut a: [usize],
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1074-stick-lengths.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/465-b-inbox-100500.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1074-stick-lengths.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-2431-digit-queries.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (mut k): usize
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         (mut k): usize
[INFO] [stdout] 10 +         mut k: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1794-b-not-dividing.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut a): [usize]
[INFO] [stdout] 12 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/2025-c-new-game.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [n, k]: [usize; 2],
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/bin/118-a-string-task.rs:15:82
[INFO] [stdout]    |
[INFO] [stdout] 15 |         once('.').chain(s.to_lowercase().chars().filter(|c| !vowels.contains(c)).intersperse('.')).collect()
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `cp_lib::itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(iter_intersperse)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3420-distinct-values-subarrays.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1194-monsters.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         (mut grid): [[char]; n]
[INFO] [stdout]    |         ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -         (mut grid): [[char]; n]
[INFO] [stdout] 14 +         mut grid: [[char]; n]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/465-b-inbox-100500.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1833-b-restore-the-weather.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         (mut b): [isize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -         (mut b): [isize]
[INFO] [stdout] 14 +         mut b: [isize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-2431-digit-queries.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (mut k): usize
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         (mut k): usize
[INFO] [stdout] 10 +         mut k: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/2065-a-skibidus-and-amog-u.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (mut s): String
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         (mut s): String
[INFO] [stdout] 10 +         mut s: String
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1622-creating-strings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut s): [char]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut s): [char]
[INFO] [stdout] 12 +         mut s: [char]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SepLeft` is never constructed
[INFO] [stdout]   --> src/bin/cses-2413-counting-towers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Extend {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     SepLeft = 3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1966-a-card-exchange.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut c): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut c): [usize]
[INFO] [stdout] 12 +         mut c: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/764-b-timofey-and-cubes.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [isize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [isize]
[INFO] [stdout] 11 +         mut a: [isize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1352-a-sum-of-round-numbers.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut n): usize
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut n): usize
[INFO] [stdout] 11 +         mut n: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1145-increasing-subsequence.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INF` is never used
[INFO] [stdout]  --> src/bin/cses-1145-increasing-subsequence.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const INF: usize = 10usize.pow(9) + 7;
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1084-apartments.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize],
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize],
[INFO] [stdout] 11 +         mut a: [usize],
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1084-apartments.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut b): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut b): [usize]
[INFO] [stdout] 12 +         mut b: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1748-increasing-subsequence-ii.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/cses-1748-increasing-subsequence-ii.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         a: [usize]
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1917-a-least-product.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1141-playlist.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1475-a-odd-divisor.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |        (mut n): usize
[INFO] [stdout]    |        ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -        (mut n): usize
[INFO] [stdout] 11 +        mut n: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1194-monsters.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         (mut grid): [[char]; n]
[INFO] [stdout]    |         ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -         (mut grid): [[char]; n]
[INFO] [stdout] 14 +         mut grid: [[char]; n]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1094-increasing-array.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3311-grid-coloring-i.rs:53:39
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn next_cell((x, y): (usize, usize), (n, m): (usize, usize)) -> (usize, usize) {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1850-d-balanced-round.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         (mut a): [usize]
[INFO] [stdout] 13 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1850-d-balanced-round.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         (mut a): [usize]
[INFO] [stdout] 13 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1163-traffic-lights.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn solution([x, n]: [usize; 2], a: [usize]) -> Words<usize> {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/11-a-increasing-sequence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1629-movie-festival.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut movies): [[usize; 2]; n]
[INFO] [stdout]    |         ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut movies): [[usize; 2]; n]
[INFO] [stdout] 11 +         mut movies: [[usize; 2]; n]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> src/bin/aoj-1001-binary-tree-intersection-and-union.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [op, a, b]: [String; 3]
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bin/aoj-1001-binary-tree-intersection-and-union.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         [op, a, b]: [String; 3]
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1966-a-card-exchange.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut c): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut c): [usize]
[INFO] [stdout] 12 +         mut c: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1621-distinct-numbers.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1141-playlist.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1352-a-sum-of-round-numbers.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut n): usize
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut n): usize
[INFO] [stdout] 11 +         mut n: usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1631-reading-books.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut a): [usize]
[INFO] [stdout] 11 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1917-a-least-product.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/1794-b-not-dividing.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut a): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut a): [usize]
[INFO] [stdout] 12 +         mut a: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-3421-distinct-values-subsequences.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1629-movie-festival.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut movies): [[usize; 2]; n]
[INFO] [stdout]    |         ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut movies): [[usize; 2]; n]
[INFO] [stdout] 11 +         mut movies: [[usize; 2]; n]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/450-a-jzzhu-and-children.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |         [n, m]: [usize; 2],
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1090-ferris-wheel.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (mut p): [usize]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         (mut p): [usize]
[INFO] [stdout] 11 +         mut p: [usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/bin/118-a-string-task.rs:15:82
[INFO] [stdout]    |
[INFO] [stdout] 15 |         once('.').chain(s.to_lowercase().chars().filter(|c| !vowels.contains(c)).intersperse('.')).collect()
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `cp_lib::itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(iter_intersperse)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/450-a-jzzhu-and-children.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |         [n, m]: [usize; 2],
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1033-a-king-escape.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1661-subarray-sums-ii.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, x]: [isize; 2], a: [isize]) -> usize {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/cses-1622-creating-strings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         (mut s): [char]
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         (mut s): [char]
[INFO] [stdout] 12 +         mut s: [char]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1073-towers.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1163-traffic-lights.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn solution([x, n]: [usize; 2], a: [usize]) -> Words<usize> {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/2065-a-skibidus-and-amog-u.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (mut s): String
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         (mut s): String
[INFO] [stdout] 10 +         mut s: String
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1145-increasing-subsequence.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INF` is never used
[INFO] [stdout]  --> src/bin/cses-1145-increasing-subsequence.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const INF: usize = 10usize.pow(9) + 7;
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/1469-b-red-and-blue.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         n: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/1469-b-red-and-blue.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         m: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/cses-1091-concert-tickets.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, m]: [usize; 2], ticket_price: [usize], budgets: [usize]) -> Lines<CPResult<usize, i8>> {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/cses-1091-concert-tickets.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn solution([n, m]: [usize; 2], ticket_price: [usize], budgets: [usize]) -> Lines<CPResult<usize, i8>> {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/814-a-an-abandoned-sentiment-from-past.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         (mut a): [usize],
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         (mut a): [usize],
[INFO] [stdout] 13 +         mut a: [usize],
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.93s
[INFO] running `Command { std: "docker" "inspect" "9127ab32b939c6b1b9a8f089a97c6f66a1d3316571767bf4c57ede0406074454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9127ab32b939c6b1b9a8f089a97c6f66a1d3316571767bf4c57ede0406074454", kill_on_drop: false }`
[INFO] [stdout] 9127ab32b939c6b1b9a8f089a97c6f66a1d3316571767bf4c57ede0406074454
