[INFO] fetching crate axial 0.2.1... [INFO] testing axial-0.2.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate axial 0.2.1 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate axial 0.2.1 [INFO] finished tweaking crates.io crate axial 0.2.1 [INFO] tweaked toml for crates.io crate axial 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate axial 0.2.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate axial 0.2.1 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pqcrypto-traits v0.3.5 [INFO] [stderr] Downloaded pqcrypto-internals v0.2.10 [INFO] [stderr] Downloaded windows-result v0.3.3 [INFO] [stderr] Downloaded pqcrypto v0.18.1 [INFO] [stderr] Downloaded pqcrypto-classicmceliece v0.2.0 [INFO] [stderr] Downloaded pqcrypto-dilithium v0.5.0 [INFO] [stderr] Downloaded pqcrypto-kyber v0.8.1 [INFO] [stderr] Downloaded pqcrypto-mldsa v0.1.1 [INFO] [stderr] Downloaded pqcrypto-mlkem v0.1.0 [INFO] [stderr] Downloaded pqcrypto-falcon v0.4.0 [INFO] [stderr] Downloaded pqcrypto-sphincsplus v0.7.1 [INFO] [stderr] Downloaded pqcrypto-hqc v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 988cd3d74d9fb860827ca41cac215aa22a4db775e1c13b8360ff09321203d72e [INFO] running `Command { std: "docker" "start" "-a" "988cd3d74d9fb860827ca41cac215aa22a4db775e1c13b8360ff09321203d72e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "988cd3d74d9fb860827ca41cac215aa22a4db775e1c13b8360ff09321203d72e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "988cd3d74d9fb860827ca41cac215aa22a4db775e1c13b8360ff09321203d72e", kill_on_drop: false }` [INFO] [stdout] 988cd3d74d9fb860827ca41cac215aa22a4db775e1c13b8360ff09321203d72e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 8a62f30dfb2ae1fd804fe5d5991efb85f61367e2e88370be26bc6f7768b659d9 [INFO] running `Command { std: "docker" "start" "-a" "8a62f30dfb2ae1fd804fe5d5991efb85f61367e2e88370be26bc6f7768b659d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling hashbrown v0.15.3 [INFO] [stderr] Compiling futures-task v0.3.31 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling httpdate v1.0.3 [INFO] [stderr] Compiling httparse v1.10.1 [INFO] [stderr] Compiling http-body-util v0.1.3 [INFO] [stderr] Compiling thread_local v1.1.8 [INFO] [stderr] Compiling percent-encoding v2.3.1 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling indexmap v2.9.0 [INFO] [stderr] Compiling mio v1.0.3 [INFO] [stderr] Compiling signal-hook-registry v1.4.5 [INFO] [stderr] Compiling socket2 v0.5.9 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling async-trait v0.1.88 [INFO] [stderr] Compiling tokio v1.45.0 [INFO] [stderr] Compiling tokio-util v0.7.15 [INFO] [stderr] Compiling h2 v0.4.10 [INFO] [stderr] Compiling hyper v1.6.0 [INFO] [stderr] Compiling hyper-util v0.1.11 [INFO] [stderr] Compiling axial v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/core/servers/http.rs:244:14 [INFO] [stdout] | [INFO] [stdout] 244 | for (key, setting) in self.settings.as_ref() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_service_unavailable` is never used [INFO] [stdout] --> src/core/servers/http.rs:396:10 [INFO] [stdout] | [INFO] [stdout] 396 | async fn send_service_unavailable(io: I) -> Result<(), hyper::Error> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 28 - async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] 28 + fn start(self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | async fn handle_connection( [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 29 ~ fn handle_connection( [INFO] [stdout] 30 | app_capture: Arc, [INFO] [stdout] ... [INFO] [stdout] 34 | _permit: Option>, [INFO] [stdout] 35 ~ ) -> impl std::future::Future + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.81s [INFO] running `Command { std: "docker" "inspect" "8a62f30dfb2ae1fd804fe5d5991efb85f61367e2e88370be26bc6f7768b659d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a62f30dfb2ae1fd804fe5d5991efb85f61367e2e88370be26bc6f7768b659d9", kill_on_drop: false }` [INFO] [stdout] 8a62f30dfb2ae1fd804fe5d5991efb85f61367e2e88370be26bc6f7768b659d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 0e9fbebfa11d652c7aeba4e2561921c6b12693dc7d214dd5744e459cc82bdb05 [INFO] running `Command { std: "docker" "start" "-a" "0e9fbebfa11d652c7aeba4e2561921c6b12693dc7d214dd5744e459cc82bdb05", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/core/servers/http.rs:244:14 [INFO] [stdout] | [INFO] [stdout] 244 | for (key, setting) in self.settings.as_ref() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_service_unavailable` is never used [INFO] [stdout] --> src/core/servers/http.rs:396:10 [INFO] [stdout] | [INFO] [stdout] 396 | async fn send_service_unavailable(io: I) -> Result<(), hyper::Error> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 28 - async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] 28 + fn start(self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | async fn handle_connection( [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 29 ~ fn handle_connection( [INFO] [stdout] 30 | app_capture: Arc, [INFO] [stdout] ... [INFO] [stdout] 34 | _permit: Option>, [INFO] [stdout] 35 ~ ) -> impl std::future::Future + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling axial v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/core/servers/http.rs:244:14 [INFO] [stdout] | [INFO] [stdout] 244 | for (key, setting) in self.settings.as_ref() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_service_unavailable` is never used [INFO] [stdout] --> src/core/servers/http.rs:396:10 [INFO] [stdout] | [INFO] [stdout] 396 | async fn send_service_unavailable(io: I) -> Result<(), hyper::Error> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 28 - async fn start(self) -> Result<(), Self::Error>; [INFO] [stdout] 28 + fn start(self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/core/servers/http.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | async fn handle_connection( [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 29 ~ fn handle_connection( [INFO] [stdout] 30 | app_capture: Arc, [INFO] [stdout] ... [INFO] [stdout] 34 | _permit: Option>, [INFO] [stdout] 35 ~ ) -> impl std::future::Future + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `Command { std: "docker" "inspect" "0e9fbebfa11d652c7aeba4e2561921c6b12693dc7d214dd5744e459cc82bdb05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e9fbebfa11d652c7aeba4e2561921c6b12693dc7d214dd5744e459cc82bdb05", kill_on_drop: false }` [INFO] [stdout] 0e9fbebfa11d652c7aeba4e2561921c6b12693dc7d214dd5744e459cc82bdb05 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 8083c3714b50b3b70e1a5ddc5a185de45da802bdbf839495283ace2db5c60b93 [INFO] running `Command { std: "docker" "start" "-a" "8083c3714b50b3b70e1a5ddc5a185de45da802bdbf839495283ace2db5c60b93", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/core/servers/http.rs:244:14 [INFO] [stderr] | [INFO] [stderr] 244 | for (key, setting) in self.settings.as_ref() { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `send_service_unavailable` is never used [INFO] [stderr] --> src/core/servers/http.rs:396:10 [INFO] [stderr] | [INFO] [stderr] 396 | async fn send_service_unavailable(io: I) -> Result<(), hyper::Error> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stderr] --> src/core/servers/http.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | async fn start(self) -> Result<(), Self::Error>; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stderr] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stderr] | [INFO] [stderr] 28 - async fn start(self) -> Result<(), Self::Error>; [INFO] [stderr] 28 + fn start(self) -> impl std::future::Future> + Send; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stderr] --> src/core/servers/http.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | async fn handle_connection( [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stderr] | [INFO] [stderr] 29 ~ fn handle_connection( [INFO] [stderr] 30 | app_capture: Arc, [INFO] [stderr] ... [INFO] [stderr] 34 | _permit: Option>, [INFO] [stderr] 35 ~ ) -> impl std::future::Future + Send; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `axial` (lib) generated 4 warnings [INFO] [stderr] warning: `axial` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/axial-cb8d666c44033fd5) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8083c3714b50b3b70e1a5ddc5a185de45da802bdbf839495283ace2db5c60b93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8083c3714b50b3b70e1a5ddc5a185de45da802bdbf839495283ace2db5c60b93", kill_on_drop: false }` [INFO] [stdout] 8083c3714b50b3b70e1a5ddc5a185de45da802bdbf839495283ace2db5c60b93