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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lfordyce/instructions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfordyce%2Finstructions", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a9587949d07b47c0fe46e7532f6478705eb1877
[INFO] checking lfordyce/instructions against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfordyce%2Finstructions" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lfordyce/instructions on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lfordyce/instructions
[INFO] finished tweaking git repo https://github.com/lfordyce/instructions
[INFO] tweaked toml for git repo https://github.com/lfordyce/instructions written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/lfordyce/instructions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
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[INFO] [stderr]    Compiling async-trait v0.1.50
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[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
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[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]     Checking futures-executor v0.3.15
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[INFO] [stderr]     Checking instructions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/ray_tracing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/ray_tracing.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/ray_tracing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/ray_tracing.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reducer`
[INFO] [stdout]   --> src/lib.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     async fn evaluate(self, reducer: Arc<String>) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reducer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/abstractions.rs:142:19
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn get(&self, index: usize) -> Self::Output {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/abstractions.rs:150:19
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn get(&self, index: usize) -> Self::Output {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw_body`
[INFO] [stdout]    --> src/abstractions.rs:229:20
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn deserialize(raw_body: &'a [u8]) -> Self::Out {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_in`
[INFO] [stdout]    --> src/ray_tracing.rs:175:23
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn collide(&self, ray_in: &Ray, hit: &Hit) -> Ray {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_in`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reducer`
[INFO] [stdout]   --> src/lib.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     async fn evaluate(self, reducer: Arc<String>) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reducer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/abstractions.rs:142:19
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn get(&self, index: usize) -> Self::Output {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/abstractions.rs:150:19
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn get(&self, index: usize) -> Self::Output {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw_body`
[INFO] [stdout]    --> src/abstractions.rs:229:20
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn deserialize(raw_body: &'a [u8]) -> Self::Out {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_in`
[INFO] [stdout]    --> src/ray_tracing.rs:175:23
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn collide(&self, ray_in: &Ray, hit: &Hit) -> Ray {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_in`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `producer`
[INFO] [stdout]    --> src/abstractions.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     producer: &'p CarFactory,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_ep`
[INFO] [stdout]    --> src/abstractions.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn store_ep<'a, EP, F>(func: F)
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]    --> src/abstractions.rs:224:5
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub string: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ifc`
[INFO] [stdout]    --> src/abstractions.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |     ifc: &'a mut Ifc,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `FactoryCreatorFactory`
[INFO] [stdout]   --> src/factory.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / type FactoryCreatorFactory<'a, Self_> =
[INFO] [stdout] 19 | |     <Self_ as FactoryCreatorHasFactory<'a, <Self_ as FactoryCreator>::Result>>::Factory;
[INFO] [stdout]    | |________________________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spawn`
[INFO] [stdout]   --> src/factory.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn spawn<T: FactoryCreator>() -> T::Result {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normal`
[INFO] [stdout]   --> src/ray_tracing.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normal(&self) -> Ray {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `collide`
[INFO] [stdout]   --> src/ray_tracing.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn collide(&self, ray: &Ray) -> Ray {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `albedo`
[INFO] [stdout]   --> src/ray_tracing.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn albedo(&self) -> &Vec3 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]    --> src/ray_tracing.rs:368:8
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn cross(&self, other: &Vec3) -> Vec3 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `project`
[INFO] [stdout]    --> src/ray_tracing.rs:378:8
[INFO] [stdout]     |
[INFO] [stdout] 378 |     fn project(&self, onto: &Vec3) -> Vec3 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/ray_tracing.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn rotate(&self, phi: f32, theta: f32) -> Vec3 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/lib.rs:148:10
[INFO] [stdout]     |
[INFO] [stdout] 148 | async fn test<BT>(bt: BT)
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plugin.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         self.this.client_connected(client).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plugin.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         self.next.client_connected(client).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `producer`
[INFO] [stdout]    --> src/abstractions.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     producer: &'p CarFactory,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_ep`
[INFO] [stdout]    --> src/abstractions.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn store_ep<'a, EP, F>(func: F)
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]    --> src/abstractions.rs:224:5
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub string: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ifc`
[INFO] [stdout]    --> src/abstractions.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |     ifc: &'a mut Ifc,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `FactoryCreatorFactory`
[INFO] [stdout]   --> src/factory.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / type FactoryCreatorFactory<'a, Self_> =
[INFO] [stdout] 19 | |     <Self_ as FactoryCreatorHasFactory<'a, <Self_ as FactoryCreator>::Result>>::Factory;
[INFO] [stdout]    | |________________________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spawn`
[INFO] [stdout]   --> src/factory.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn spawn<T: FactoryCreator>() -> T::Result {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_phone`
[INFO] [stdout]   --> src/factory.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn call_phone<F: for<'a> Factory<'a>>(f: F) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normal`
[INFO] [stdout]   --> src/ray_tracing.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normal(&self) -> Ray {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `collide`
[INFO] [stdout]   --> src/ray_tracing.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn collide(&self, ray: &Ray) -> Ray {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `albedo`
[INFO] [stdout]   --> src/ray_tracing.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn albedo(&self) -> &Vec3 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]    --> src/ray_tracing.rs:368:8
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn cross(&self, other: &Vec3) -> Vec3 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `project`
[INFO] [stdout]    --> src/ray_tracing.rs:378:8
[INFO] [stdout]     |
[INFO] [stdout] 378 |     fn project(&self, onto: &Vec3) -> Vec3 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/ray_tracing.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn rotate(&self, phi: f32, theta: f32) -> Vec3 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/lib.rs:148:10
[INFO] [stdout]     |
[INFO] [stdout] 148 | async fn test<BT>(bt: BT)
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plugin.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         self.this.client_connected(client).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plugin.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         self.next.client_connected(client).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material3`
[INFO] [stdout]   --> tests/ray_tracing_test.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let material3 = Lambertian::new(&Vec3::new(0.8, 0.6, 0.2));
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material3`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOfficeWorker`
[INFO] [stdout]  --> tests/abstractions_test.rs:3:41
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Manager, ManagerImpl, OfficeWorker, OpenOfficeWorker, ProducerTrait, ProductTrait,
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material4`
[INFO] [stdout]   --> tests/ray_tracing_test.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let material4 = Lambertian::new(&Vec3::new(0.8, 0.8, 0.8));
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> tests/ray_tracing_test.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             for s in 0..ns {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `product`
[INFO] [stdout]   --> tests/abstractions_test.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let product = producer.produce("Herby");
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_product`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/async_hrtb_test.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut ctx = ClientConnectContext::new(plugin3);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]    --> tests/async_hrtb_test.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | /     inner: stream::Forward<
[INFO] [stdout] 170 | |         stream::Map<S, fn(S::Item) -> Result<S::Item, mpsc::SendError>>,
[INFO] [stdout] 171 | |         mpsc::Sender<S::Item>,
[INFO] [stdout] 172 | |     >,
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> tests/async_hrtb_test.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     take_async_callback(add);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> tests/async_hrtb_test.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     take_async_callback(add_explicit);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> tests/async_hrtb_test.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     ctx.next(&mut ClientConn).await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.78s
[INFO] running `Command { std: "docker" "inspect" "49357280e19b49badbd6a4901581319f6d0e773fcd36f6924c49d95be636bfad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49357280e19b49badbd6a4901581319f6d0e773fcd36f6924c49d95be636bfad", kill_on_drop: false }`
[INFO] [stdout] 49357280e19b49badbd6a4901581319f6d0e773fcd36f6924c49d95be636bfad