[INFO] fetching crate ufotofu 0.8.0...
[INFO] checking ufotofu-0.8.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ufotofu 0.8.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ufotofu 0.8.0
[INFO] finished tweaking crates.io crate ufotofu 0.8.0
[INFO] tweaked toml for crates.io crate ufotofu 0.8.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ufotofu 0.8.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ufotofu 0.8.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a0c1b1525422ce147d4a117b6bcf0e1501a5ecdc91d10e930b9ec3dd359001b
[INFO] running `Command { std: "docker" "start" "-a" "5a0c1b1525422ce147d4a117b6bcf0e1501a5ecdc91d10e930b9ec3dd359001b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a0c1b1525422ce147d4a117b6bcf0e1501a5ecdc91d10e930b9ec3dd359001b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a0c1b1525422ce147d4a117b6bcf0e1501a5ecdc91d10e930b9ec3dd359001b", kill_on_drop: false }`
[INFO] [stdout] 5a0c1b1525422ce147d4a117b6bcf0e1501a5ecdc91d10e930b9ec3dd359001b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76156d5ac8f5264a21a83dc3e7edf00d387299b1ad2d40f362197b674696fc45
[INFO] running `Command { std: "docker" "start" "-a" "76156d5ac8f5264a21a83dc3e7edf00d387299b1ad2d40f362197b674696fc45", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking fairly_unsafe_cell v0.1.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking frugal_async v0.1.0
[INFO] [stderr]     Checking pollster v0.4.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling toml_edit v0.23.6
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling ufotofu_macros v0.1.0
[INFO] [stderr]     Checking ufotofu v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 | /     {
[INFO] [stdout] 404 | |         unreachable!()
[INFO] [stdout] 405 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 | /     {
[INFO] [stdout] 404 | |         unreachable!()
[INFO] [stdout] 405 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:147:89
[INFO] [stdout]     |
[INFO] [stdout] 147 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 148 | |         if self.0.len() == self.1 {
[INFO] [stdout] 149 | |             Ok(Right(()))
[INFO] [stdout] 150 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:147:89
[INFO] [stdout]     |
[INFO] [stdout] 147 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 148 | |         if self.0.len() == self.1 {
[INFO] [stdout] 149 | |             Ok(Right(()))
[INFO] [stdout] 150 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         if self.0.len() == self.1 {
[INFO] [stdout] 149 | |             Ok(Right(()))
[INFO] [stdout] 150 | |         } else {
[INFO] [stdout] 151 | |             let item = self.0[self.1].clone();
[INFO] [stdout] ...   |
[INFO] [stdout] 154 | |             Ok(Left(item))
[INFO] [stdout] 155 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:148:35
[INFO] [stdout]     |
[INFO] [stdout] 148 |           if self.0.len() == self.1 {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 149 | |             Ok(Right(()))
[INFO] [stdout] 150 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:150:16
[INFO] [stdout]     |
[INFO] [stdout] 150 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 151 | |             let item = self.0[self.1].clone();
[INFO] [stdout] 152 | |             self.1 += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 155 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |             Ok(Left(item))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     {
[INFO] [stdout] 168 | |         let len = self.0.len() - self.1;
[INFO] [stdout] 169 | |
[INFO] [stdout] 170 | |         if len == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 179 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     {
[INFO] [stdout] 168 | |         let len = self.0.len() - self.1;
[INFO] [stdout] 169 | |
[INFO] [stdout] 170 | |         if len == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 179 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 | /         if len == 0 {
[INFO] [stdout] 171 | |             Ok(Right(()))
[INFO] [stdout] 172 | |         } else {
[INFO] [stdout] 173 | |             let (amount, ret) = f(&self.0[self.1..self.1 + len]).await;
[INFO] [stdout] ...   |
[INFO] [stdout] 177 | |             Ok(Left(ret))
[INFO] [stdout] 178 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:170:21
[INFO] [stdout]     |
[INFO] [stdout] 170 |           if len == 0 {
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 171 | |             Ok(Right(()))
[INFO] [stdout] 172 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 173 | |             let (amount, ret) = f(&self.0[self.1..self.1 + len]).await;
[INFO] [stdout] 174 | |             assert!(amount <= len);
[INFO] [stdout] 175 | |             self.1 += amount;
[INFO] [stdout] 176 | |
[INFO] [stdout] 177 | |             Ok(Left(ret))
[INFO] [stdout] 178 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             Ok(Left(ret))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:329:89
[INFO] [stdout]     |
[INFO] [stdout] 329 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 330 | |         if self.0.as_ref().len() == self.1 {
[INFO] [stdout] 331 | |             Ok(Right(()))
[INFO] [stdout] 332 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 338 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:329:89
[INFO] [stdout]     |
[INFO] [stdout] 329 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 330 | |         if self.0.as_ref().len() == self.1 {
[INFO] [stdout] 331 | |             Ok(Right(()))
[INFO] [stdout] 332 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 338 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:330:9
[INFO] [stdout]     |
[INFO] [stdout] 330 | /         if self.0.as_ref().len() == self.1 {
[INFO] [stdout] 331 | |             Ok(Right(()))
[INFO] [stdout] 332 | |         } else {
[INFO] [stdout] 333 | |             let item = self.0.as_ref()[self.1].clone();
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |             Ok(Left(item))
[INFO] [stdout] 337 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:330:44
[INFO] [stdout]     |
[INFO] [stdout] 330 |           if self.0.as_ref().len() == self.1 {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 331 | |             Ok(Right(()))
[INFO] [stdout] 332 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:331:13
[INFO] [stdout]     |
[INFO] [stdout] 331 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:332:16
[INFO] [stdout]     |
[INFO] [stdout] 332 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 333 | |             let item = self.0.as_ref()[self.1].clone();
[INFO] [stdout] 334 | |             self.1 += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 337 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |             Ok(Left(item))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:352:5
[INFO] [stdout]     |
[INFO] [stdout] 352 | /     {
[INFO] [stdout] 353 | |         let len = self.0.as_ref().len() - self.1;
[INFO] [stdout] 354 | |
[INFO] [stdout] 355 | |         if len == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 364 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:352:5
[INFO] [stdout]     |
[INFO] [stdout] 352 | /     {
[INFO] [stdout] 353 | |         let len = self.0.as_ref().len() - self.1;
[INFO] [stdout] 354 | |
[INFO] [stdout] 355 | |         if len == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 364 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 | /         if len == 0 {
[INFO] [stdout] 356 | |             Ok(Right(()))
[INFO] [stdout] 357 | |         } else {
[INFO] [stdout] 358 | |             let (amount, ret) = f(&self.0.as_ref()[self.1..self.1 + len]).await;
[INFO] [stdout] ...   |
[INFO] [stdout] 362 | |             Ok(Left(ret))
[INFO] [stdout] 363 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:355:21
[INFO] [stdout]     |
[INFO] [stdout] 355 |           if len == 0 {
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 356 | |             Ok(Right(()))
[INFO] [stdout] 357 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:356:13
[INFO] [stdout]     |
[INFO] [stdout] 356 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:357:16
[INFO] [stdout]     |
[INFO] [stdout] 357 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 358 | |             let (amount, ret) = f(&self.0.as_ref()[self.1..self.1 + len]).await;
[INFO] [stdout] 359 | |             assert!(amount <= len);
[INFO] [stdout] 360 | |             self.1 += amount;
[INFO] [stdout] 361 | |
[INFO] [stdout] 362 | |             Ok(Left(ret))
[INFO] [stdout] 363 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/clone_from_slice.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |             Ok(Left(ret))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<core::convert::Infallible, T>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/empty.rs:38:89
[INFO] [stdout]    |
[INFO] [stdout] 38 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 39 | |         Ok(Right(self.0.take().expect(
[INFO] [stdout] 40 | |             "Must not call produce after having yielded the final value",
[INFO] [stdout] 41 | |         )))
[INFO] [stdout] 42 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<core::convert::Infallible, T>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/empty.rs:38:89
[INFO] [stdout]    |
[INFO] [stdout] 38 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 39 | |         Ok(Right(self.0.take().expect(
[INFO] [stdout] 40 | |             "Must not call produce after having yielded the final value",
[INFO] [stdout] 41 | |         )))
[INFO] [stdout] 42 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<core::convert::Infallible, T>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/empty.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | /         Ok(Right(self.0.take().expect(
[INFO] [stdout] 40 | |             "Must not call produce after having yielded the final value",
[INFO] [stdout] 41 | |         )))
[INFO] [stdout]    | |___________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/iterator_to_producer.rs:63:89
[INFO] [stdout]    |
[INFO] [stdout] 63 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 64 | |         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => Ok(Right(())),
[INFO] [stdout] 67 | |         }
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/iterator_to_producer.rs:63:89
[INFO] [stdout]    |
[INFO] [stdout] 63 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 64 | |         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => Ok(Right(())),
[INFO] [stdout] 67 | |         }
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/iterator_to_producer.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 | /         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => Ok(Right(())),
[INFO] [stdout] 67 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/iterator_to_producer.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Some(it) => Ok(Left(it)),
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/iterator_to_producer.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |             None => Ok(Right(())),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/infinite_iterator_to_producer.rs:63:89
[INFO] [stdout]    |
[INFO] [stdout] 63 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 64 | |         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => panic!("A supposedly infinite iterator yielded None."),
[INFO] [stdout] 67 | |         }
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/infinite_iterator_to_producer.rs:63:89
[INFO] [stdout]    |
[INFO] [stdout] 63 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 64 | |         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => panic!("A supposedly infinite iterator yielded None."),
[INFO] [stdout] 67 | |         }
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/infinite_iterator_to_producer.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 | /         match self.0.next() {
[INFO] [stdout] 65 | |             Some(it) => Ok(Left(it)),
[INFO] [stdout] 66 | |             None => panic!("A supposedly infinite iterator yielded None."),
[INFO] [stdout] 67 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<I as Iterator>::Item, core::convert::Infallible>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/infinite_iterator_to_producer.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Some(it) => Ok(Left(it)),
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:156:97
[INFO] [stdout]     |
[INFO] [stdout] 156 |       async fn produce(&mut self) -> Result<either::Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________________^
[INFO] [stdout] 157 | |         if self.len() == 0 {
[INFO] [stdout] 158 | |             Ok(Right(()))
[INFO] [stdout] 159 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 166 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:156:97
[INFO] [stdout]     |
[INFO] [stdout] 156 |       async fn produce(&mut self) -> Result<either::Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________________^
[INFO] [stdout] 157 | |         if self.len() == 0 {
[INFO] [stdout] 158 | |             Ok(Right(()))
[INFO] [stdout] 159 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 166 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 | /         if self.len() == 0 {
[INFO] [stdout] 158 | |             Ok(Right(()))
[INFO] [stdout] 159 | |         } else {
[INFO] [stdout] 160 | |             let item_ref = &self.arr[self.offset];
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |             Ok(Left(unsafe { (item_ref as *const T).read() }))
[INFO] [stdout] 165 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |           if self.len() == 0 {
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 158 | |             Ok(Right(()))
[INFO] [stdout] 159 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:159:16
[INFO] [stdout]     |
[INFO] [stdout] 159 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 160 | |             let item_ref = &self.arr[self.offset];
[INFO] [stdout] 161 | |             self.offset += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |             Ok(Left(unsafe { (item_ref as *const T).read() }))
[INFO] [stdout] 165 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Ok(Left(unsafe { (item_ref as *const T).read() }))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     {
[INFO] [stdout] 178 | |         if self.len() == 0 {
[INFO] [stdout] 179 | |             Ok(Right(()))
[INFO] [stdout] 180 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 187 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     {
[INFO] [stdout] 178 | |         if self.len() == 0 {
[INFO] [stdout] 179 | |             Ok(Right(()))
[INFO] [stdout] 180 | |         } else {
[INFO] [stdout] ...   |
[INFO] [stdout] 187 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | /         if self.len() == 0 {
[INFO] [stdout] 179 | |             Ok(Right(()))
[INFO] [stdout] 180 | |         } else {
[INFO] [stdout] 181 | |             let (amount, ret) = f(self.as_slice()).await;
[INFO] [stdout] ...   |
[INFO] [stdout] 185 | |             Ok(Left(ret))
[INFO] [stdout] 186 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:178:28
[INFO] [stdout]     |
[INFO] [stdout] 178 |           if self.len() == 0 {
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 179 | |             Ok(Right(()))
[INFO] [stdout] 180 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |             Ok(Right(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:180:16
[INFO] [stdout]     |
[INFO] [stdout] 180 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 181 | |             let (amount, ret) = f(self.as_slice()).await;
[INFO] [stdout] 182 | |             assert!(amount <= self.len());
[INFO] [stdout] 183 | |             self.offset += amount;
[INFO] [stdout] 184 | |
[INFO] [stdout] 185 | |             Ok(Left(ret))
[INFO] [stdout] 186 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<R, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |             Ok(Left(ret))
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:231:89
[INFO] [stdout]     |
[INFO] [stdout] 231 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 232 | |         self.0.produce().await
[INFO] [stdout] 233 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:231:89
[INFO] [stdout]     |
[INFO] [stdout] 231 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 232 | |         self.0.produce().await
[INFO] [stdout] 233 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:232:26
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:279:89
[INFO] [stdout]     |
[INFO] [stdout] 279 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 280 | |         self.0.produce().await
[INFO] [stdout] 281 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:279:89
[INFO] [stdout]     |
[INFO] [stdout] 279 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 280 | |         self.0.produce().await
[INFO] [stdout] 281 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:280:26
[INFO] [stdout]     |
[INFO] [stdout] 280 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/array.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:45:89
[INFO] [stdout]    |
[INFO] [stdout] 45 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 46 | |         self.0.produce().await
[INFO] [stdout] 47 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:45:89
[INFO] [stdout]    |
[INFO] [stdout] 45 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 46 | |         self.0.produce().await
[INFO] [stdout] 47 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:91:89
[INFO] [stdout]    |
[INFO] [stdout] 91 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 92 | |         self.0.produce().await
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:91:89
[INFO] [stdout]    |
[INFO] [stdout] 91 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 92 | |         self.0.produce().await
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:92:26
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/slice.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:139:89
[INFO] [stdout]     |
[INFO] [stdout] 139 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 140 | |         self.0.produce().await
[INFO] [stdout] 141 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:139:89
[INFO] [stdout]     |
[INFO] [stdout] 139 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 140 | |         self.0.produce().await
[INFO] [stdout] 141 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:140:26
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:191:89
[INFO] [stdout]     |
[INFO] [stdout] 191 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 192 | |         self.0.produce().await
[INFO] [stdout] 193 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:191:89
[INFO] [stdout]     |
[INFO] [stdout] 191 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 192 | |         self.0.produce().await
[INFO] [stdout] 193 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:192:26
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:242:89
[INFO] [stdout]     |
[INFO] [stdout] 242 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 243 | |         self.0.produce().await
[INFO] [stdout] 244 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:242:89
[INFO] [stdout]     |
[INFO] [stdout] 242 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 243 | |         self.0.produce().await
[INFO] [stdout] 244 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:243:26
[INFO] [stdout]     |
[INFO] [stdout] 243 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/slice.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec.rs:94:89
[INFO] [stdout]    |
[INFO] [stdout] 94 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 95 | |         self.0.produce().await
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec.rs:94:89
[INFO] [stdout]    |
[INFO] [stdout] 94 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 95 | |         self.0.produce().await
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:146:89
[INFO] [stdout]     |
[INFO] [stdout] 146 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 147 | |         self.0.produce().await
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:146:89
[INFO] [stdout]     |
[INFO] [stdout] 146 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 147 | |         self.0.produce().await
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:192:89
[INFO] [stdout]     |
[INFO] [stdout] 192 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 193 | |         self.0.produce().await
[INFO] [stdout] 194 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:192:89
[INFO] [stdout]     |
[INFO] [stdout] 192 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 193 | |         self.0.produce().await
[INFO] [stdout] 194 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:193:26
[INFO] [stdout]     |
[INFO] [stdout] 193 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:42:89
[INFO] [stdout]    |
[INFO] [stdout] 42 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 43 | |         self.0.produce().await
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:42:89
[INFO] [stdout]    |
[INFO] [stdout] 42 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 43 | |         self.0.produce().await
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:43:26
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:91:89
[INFO] [stdout]    |
[INFO] [stdout] 91 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 92 | |         self.0.produce().await
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:91:89
[INFO] [stdout]    |
[INFO] [stdout] 91 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 92 | |         self.0.produce().await
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:92:26
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/binary_heap.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:92:89
[INFO] [stdout]    |
[INFO] [stdout] 92 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 93 | |         self.0.produce().await
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:92:89
[INFO] [stdout]    |
[INFO] [stdout] 92 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 93 | |         self.0.produce().await
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:93:26
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_map.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/btree_map.rs:141:89
[INFO] [stdout]     |
[INFO] [stdout] 141 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 142 | |         self.0.produce().await
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/btree_map.rs:141:89
[INFO] [stdout]     |
[INFO] [stdout] 141 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 142 | |         self.0.produce().await
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/btree_map.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/btree_map.rs:142:26
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/btree_map.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:42:89
[INFO] [stdout]    |
[INFO] [stdout] 42 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 43 | |         self.0.produce().await
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:42:89
[INFO] [stdout]    |
[INFO] [stdout] 42 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 43 | |         self.0.produce().await
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:43:26
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:89:89
[INFO] [stdout]    |
[INFO] [stdout] 89 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 90 | |         self.0.produce().await
[INFO] [stdout] 91 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:89:89
[INFO] [stdout]    |
[INFO] [stdout] 89 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 90 | |         self.0.produce().await
[INFO] [stdout] 91 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/btree_set.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_map.rs:52:89
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 53 | |         self.0.produce().await
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_map.rs:52:89
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 53 | |         self.0.produce().await
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_map.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_map.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(K, V), ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_map.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:110:89
[INFO] [stdout]     |
[INFO] [stdout] 110 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 111 | |         self.0.produce().await
[INFO] [stdout] 112 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:110:89
[INFO] [stdout]     |
[INFO] [stdout] 110 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 111 | |         self.0.produce().await
[INFO] [stdout] 112 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:111:26
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:169:89
[INFO] [stdout]     |
[INFO] [stdout] 169 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 170 | |         self.0.produce().await
[INFO] [stdout] 171 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:169:89
[INFO] [stdout]     |
[INFO] [stdout] 169 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 170 | |         self.0.produce().await
[INFO] [stdout] 171 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:170:26
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<(&K, &mut V), ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/hash_map.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:44:89
[INFO] [stdout]    |
[INFO] [stdout] 44 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 45 | |         self.0.produce().await
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:44:89
[INFO] [stdout]    |
[INFO] [stdout] 44 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 45 | |         self.0.produce().await
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:93:89
[INFO] [stdout]    |
[INFO] [stdout] 93 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 94 | |         self.0.produce().await
[INFO] [stdout] 95 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:93:89
[INFO] [stdout]    |
[INFO] [stdout] 93 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 94 | |         self.0.produce().await
[INFO] [stdout] 95 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:94:26
[INFO] [stdout]    |
[INFO] [stdout] 94 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/hash_set.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:92:89
[INFO] [stdout]    |
[INFO] [stdout] 92 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 93 | |         self.0.produce().await
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:92:89
[INFO] [stdout]    |
[INFO] [stdout] 92 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 93 | |         self.0.produce().await
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:93:26
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/linked_list.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/linked_list.rs:141:89
[INFO] [stdout]     |
[INFO] [stdout] 141 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 142 | |         self.0.produce().await
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/linked_list.rs:141:89
[INFO] [stdout]     |
[INFO] [stdout] 141 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 142 | |         self.0.produce().await
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/linked_list.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/linked_list.rs:142:26
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/linked_list.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:43:89
[INFO] [stdout]    |
[INFO] [stdout] 43 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 44 | |         self.0.produce().await
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:90:89
[INFO] [stdout]    |
[INFO] [stdout] 90 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 91 | |         self.0.produce().await
[INFO] [stdout] 92 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:90:89
[INFO] [stdout]    |
[INFO] [stdout] 90 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 91 | |         self.0.produce().await
[INFO] [stdout] 92 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |         self.0.produce().await
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&T, ()>, core::convert::Infallible>
[INFO] [stdout]   --> src/producer/compat/vec_deque.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         self.0.produce().await
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec_deque.rs:139:89
[INFO] [stdout]     |
[INFO] [stdout] 139 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 140 | |         self.0.produce().await
[INFO] [stdout] 141 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec_deque.rs:139:89
[INFO] [stdout]     |
[INFO] [stdout] 139 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 140 | |         self.0.produce().await
[INFO] [stdout] 141 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec_deque.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec_deque.rs:140:26
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<&mut T, ()>, core::convert::Infallible>
[INFO] [stdout]    --> src/producer/compat/vec_deque.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:516:89
[INFO] [stdout]     |
[INFO] [stdout] 516 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 517 | |         loop {
[INFO] [stdout] 518 | |             // Try to obtain the next item.
[INFO] [stdout] 519 | |             match self.state.queue.write().await.deref_mut().dequeue() {
[INFO] [stdout] ...   |
[INFO] [stdout] 545 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:516:89
[INFO] [stdout]     |
[INFO] [stdout] 516 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 517 | |         loop {
[INFO] [stdout] 518 | |             // Try to obtain the next item.
[INFO] [stdout] 519 | |             match self.state.queue.write().await.deref_mut().dequeue() {
[INFO] [stdout] ...   |
[INFO] [stdout] 545 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:524:28
[INFO] [stdout]     |
[INFO] [stdout] 524 |                     return Ok(Left(item));
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:531:36
[INFO] [stdout]     |
[INFO] [stdout] 531 | ...                   return Ok(Right(fin));
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:559:5
[INFO] [stdout]     |
[INFO] [stdout] 559 | /     {
[INFO] [stdout] 560 | |         let mut f = Some(f);
[INFO] [stdout] 561 | |
[INFO] [stdout] 562 | |         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 595 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:559:5
[INFO] [stdout]     |
[INFO] [stdout] 559 | /     {
[INFO] [stdout] 560 | |         let mut f = Some(f);
[INFO] [stdout] 561 | |
[INFO] [stdout] 562 | |         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 595 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:591:43
[INFO] [stdout]     |
[INFO] [stdout] 591 |                 Some(Left(ret)) => return Ok(Left(ret)),
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/advanced/sssr.rs:592:44
[INFO] [stdout]     |
[INFO] [stdout] 592 |                 Some(Right(fin)) => return Ok(Right(fin)),
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:344:89
[INFO] [stdout]     |
[INFO] [stdout] 344 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 345 | |         self.0.produce().await
[INFO] [stdout] 346 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:344:89
[INFO] [stdout]     |
[INFO] [stdout] 344 |       async fn produce(&mut self) -> Result<Either<Self::Item, Self::Final>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 345 | |         self.0.produce().await
[INFO] [stdout] 346 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:345:9
[INFO] [stdout]     |
[INFO] [stdout] 345 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:345:26
[INFO] [stdout]     |
[INFO] [stdout] 345 |         self.0.produce().await
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ufotofu` (lib) due to 214 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<<Q as Queue>::Item, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:345:9
[INFO] [stdout]     |
[INFO] [stdout] 345 |         self.0.produce().await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | /     {
[INFO] [stdout] 361 | |         self.0.expose_items(f).await
[INFO] [stdout] 362 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | /     {
[INFO] [stdout] 361 | |         self.0.expose_items(f).await
[INFO] [stdout] 362 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |         self.0.expose_items(f).await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:361:32
[INFO] [stdout]     |
[INFO] [stdout] 361 |         self.0.expose_items(f).await
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<either::Either<Ret, F>, core::convert::Infallible>
[INFO] [stdout]    --> src/channels/sssr.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |         self.0.expose_items(f).await
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76156d5ac8f5264a21a83dc3e7edf00d387299b1ad2d40f362197b674696fc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76156d5ac8f5264a21a83dc3e7edf00d387299b1ad2d40f362197b674696fc45", kill_on_drop: false }`
[INFO] [stdout] 76156d5ac8f5264a21a83dc3e7edf00d387299b1ad2d40f362197b674696fc45