Add opentelemetry 0.21 to CI

.drone.yml

@@ -28,8 +28,12 @@ steps:
   - cargo clippy --features opentelemetry_0_15 -- -D warnings
   - cargo clippy --features opentelemetry_0_16 -- -D warnings
   - cargo clippy --features opentelemetry_0_17 -- -D warnings
-  - cargo clippy --example client --features opentelemetry_0_17 -- -D warnings
-  - cargo clippy --example server --features opentelemetry_0_17 -- -D warnings
+  - cargo clippy --features opentelemetry_0_18 -- -D warnings
+  - cargo clippy --features opentelemetry_0_19 -- -D warnings
+  - cargo clippy --features opentelemetry_0_20 -- -D warnings
+  - cargo clippy --features opentelemetry_0_21 -- -D warnings
+  - cargo clippy --example client --features opentelemetry_0_21 -- -D warnings
+  - cargo clippy --example server --features opentelemetry_0_21 -- -D warnings
 
 trigger:
   event:
@@ -96,8 +100,8 @@ steps:
   pull: always
   commands:
   - cargo check --target=$TARGET
-  - cargo check --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo check --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo check --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo check --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:
@@ -130,8 +134,8 @@ steps:
   pull: always
   commands:
   - cargo check --target=$TARGET
-  - cargo check --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo check --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo check --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo check --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:
@@ -164,8 +168,8 @@ steps:
   pull: always
   commands:
   - cargo check --target=$TARGET
-  - cargo check --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo check --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo check --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo check --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:
@@ -197,8 +201,8 @@ steps:
   pull: always
   commands:
   - cargo build --target=$TARGET
-  - cargo build --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo build --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo build --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo build --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:
@@ -230,8 +234,8 @@ steps:
   pull: always
   commands:
   - cargo build --target=$TARGET
-  - cargo build --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo build --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo build --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo build --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:
@@ -263,8 +267,8 @@ steps:
   pull: always
   commands:
   - cargo build --target=$TARGET
-  - cargo build --target=$TARGET --example client --features opentelemetry_0_17
-  - cargo build --target=$TARGET --example server --features opentelemetry_0_17
+  - cargo build --target=$TARGET --example client --features opentelemetry_0_21
+  - cargo build --target=$TARGET --example server --features opentelemetry_0_21
 
 trigger:
   event:

.gitignore

@@ -1,2 +1,4 @@
 /target
 Cargo.lock
+/.envrc
+/.direnv

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "tracing-awc"
 description = "Tracing instrumentation for the awc http client"
-version = "0.1.3"
+version = "0.1.9"
 authors = ["asonix <asonix@asonix.dog"]
 edition = "2018"
 license = "AGPL-3.0"
@@ -10,11 +10,11 @@ readme = "README.md"
 
 [[example]]
 name = "client"
-required-features = ["opentelemetry_0_17"]
+required-features = ["opentelemetry_0_21"]
 
 [[example]]
 name = "server"
-required-features = ["opentelemetry_0_17"]
+required-features = ["opentelemetry_0_21"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
@@ -40,6 +40,22 @@ opentelemetry_0_17 = [
   "opentelemetry_0_17_pkg",
   "tracing-opentelemetry_0_17_pkg",
 ]
+opentelemetry_0_18 = [
+  "opentelemetry_0_18_pkg",
+  "tracing-opentelemetry_0_18_pkg",
+]
+opentelemetry_0_19 = [
+  "opentelemetry_0_19_pkg",
+  "tracing-opentelemetry_0_19_pkg",
+]
+opentelemetry_0_20 = [
+  "opentelemetry_0_20_pkg",
+  "tracing-opentelemetry_0_21_pkg",
+]
+opentelemetry_0_21 = [
+  "opentelemetry_0_21_pkg",
+  "tracing-opentelemetry_0_22_pkg",
+]
 
 [dependencies]
 actix-http = { version = "3.0.2", default-features = false }
@@ -52,6 +68,10 @@ opentelemetry_0_14_pkg = { package = "opentelemetry", version = "0.14", optional
 opentelemetry_0_15_pkg = { package = "opentelemetry", version = "0.15", optional = true }
 opentelemetry_0_16_pkg = { package = "opentelemetry", version = "0.16", optional = true }
 opentelemetry_0_17_pkg = { package = "opentelemetry", version = "0.17", optional = true }
+opentelemetry_0_18_pkg = { package = "opentelemetry", version = "0.18", optional = true }
+opentelemetry_0_19_pkg = { package = "opentelemetry", version = "0.19", optional = true }
+opentelemetry_0_20_pkg = { package = "opentelemetry", version = "0.20", optional = true }
+opentelemetry_0_21_pkg = { package = "opentelemetry", version = "0.21", optional = true }
 pin-project-lite = "0.2.7"
 tracing = "0.1"
 tracing-opentelemetry_0_12_pkg = { package = "tracing-opentelemetry", version = "0.12", optional = true }
@@ -59,15 +79,18 @@ tracing-opentelemetry_0_13_pkg = { package = "tracing-opentelemetry", version =
 tracing-opentelemetry_0_14_pkg = { package = "tracing-opentelemetry", version = "0.14", optional = true }
 tracing-opentelemetry_0_16_pkg = { package = "tracing-opentelemetry", version = "0.16", optional = true }
 tracing-opentelemetry_0_17_pkg = { package = "tracing-opentelemetry", version = "0.17", optional = true }
+tracing-opentelemetry_0_18_pkg = { package = "tracing-opentelemetry", version = "0.18", optional = true }
+tracing-opentelemetry_0_19_pkg = { package = "tracing-opentelemetry", version = "0.19", optional = true }
+tracing-opentelemetry_0_21_pkg = { package = "tracing-opentelemetry", version = "0.21", optional = true }
+tracing-opentelemetry_0_22_pkg = { package = "tracing-opentelemetry", version = "0.22", optional = true }
 
 [dev-dependencies]
 actix-rt = "2.6"
 actix-web = { version = "4.0.0", default-features = false }
-opentelemetry-otlp = "0.10"
-opentelemetry_0_17_pkg = { package = "opentelemetry", version = "0.17", features = [
-  "rt-tokio",
-] }
-tracing-actix-web = { version = "0.5.0", features = ["opentelemetry_0_17"] }
+opentelemetry-otlp = "0.14"
+opentelemetry_0_21_pkg = { package = "opentelemetry", version = "0.21" }
+opentelemetry_sdk = { version = "0.21", features = ["rt-tokio"] }
+tracing-actix-web = { version = "0.7.8", features = ["opentelemetry_0_21"] }
 tracing-subscriber = { version = "0.3", features = [
   "ansi",
   "env-filter",

examples/client.rs

@@ -5,13 +5,11 @@ use tracing::instrument::Instrument;
 use tracing_awc::{root_span, Tracing};
 use tracing_subscriber::{fmt::format::FmtSpan, layer::SubscriberExt, EnvFilter, Registry};
 
-use opentelemetry_0_17_pkg as opentelemetry;
-use tracing_opentelemetry_0_17_pkg as tracing_opentelemetry;
+use opentelemetry_0_21_pkg as opentelemetry;
+use tracing_opentelemetry_0_22_pkg as tracing_opentelemetry;
 
-use opentelemetry::{
-    sdk::{propagation::TraceContextPropagator, Resource},
-    KeyValue,
-};
+use opentelemetry::KeyValue;
+use opentelemetry_sdk::{propagation::TraceContextPropagator, Resource};
 
 async fn request(url: &str) -> Result<(), Box<dyn Error>> {
     Client::builder()
@@ -47,7 +45,7 @@ fn init_opentelemetry(url: &str) -> Result<(), Box<dyn Error>> {
     let tracer = opentelemetry_otlp::new_pipeline()
         .tracing()
         .with_trace_config(
-            opentelemetry::sdk::trace::config().with_resource(Resource::new(vec![KeyValue::new(
+            opentelemetry_sdk::trace::config().with_resource(Resource::new(vec![KeyValue::new(
                 "service.name",
                 "client-demo",
             )])),
@@ -57,7 +55,7 @@ fn init_opentelemetry(url: &str) -> Result<(), Box<dyn Error>> {
                 .tonic()
                 .with_endpoint(url),
         )
-        .install_batch(opentelemetry::runtime::Tokio)?;
+        .install_batch(opentelemetry_sdk::runtime::Tokio)?;
 
     let otel_layer = tracing_opentelemetry::layer().with_tracer(tracer);
 

examples/server.rs

@@ -7,13 +7,11 @@ use std::error::Error;
 use tracing_actix_web::TracingLogger;
 use tracing_subscriber::{fmt::format::FmtSpan, layer::SubscriberExt, EnvFilter, Registry};
 
-use opentelemetry_0_17_pkg as opentelemetry;
-use tracing_opentelemetry_0_17_pkg as tracing_opentelemetry;
+use opentelemetry_0_21_pkg as opentelemetry;
+use tracing_opentelemetry_0_22_pkg as tracing_opentelemetry;
 
-use opentelemetry::{
-    sdk::{propagation::TraceContextPropagator, Resource},
-    KeyValue,
-};
+use opentelemetry::KeyValue;
+use opentelemetry_sdk::{propagation::TraceContextPropagator, Resource};
 
 #[tracing::instrument(name = "Index")]
 async fn index() -> impl Responder {
@@ -51,7 +49,7 @@ fn init_opentelemetry(url: &str) -> Result<(), Box<dyn Error>> {
     let tracer = opentelemetry_otlp::new_pipeline()
         .tracing()
         .with_trace_config(
-            opentelemetry::sdk::trace::config().with_resource(Resource::new(vec![KeyValue::new(
+            opentelemetry_sdk::trace::config().with_resource(Resource::new(vec![KeyValue::new(
                 "service.name",
                 "server-demo",
             )])),
@@ -61,7 +59,7 @@ fn init_opentelemetry(url: &str) -> Result<(), Box<dyn Error>> {
                 .tonic()
                 .with_endpoint(url),
         )
-        .install_batch(opentelemetry::runtime::Tokio)?;
+        .install_batch(opentelemetry_sdk::runtime::Tokio)?;
 
     let otel_layer = tracing_opentelemetry::layer().with_tracer(tracer);
 

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1699099776,
+        "narHash": "sha256-X09iKJ27mGsGambGfkKzqvw5esP1L/Rf8H3u3fCqIiU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "85f1ba3e51676fa8cc604a3d863d729026a6b8eb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,25 @@
+{
+  description = "background-jobs";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+      in
+      {
+        packages.default = pkgs.hello;
+
+        devShell = with pkgs; mkShell {
+          nativeBuildInputs = [ cargo cargo-outdated cargo-zigbuild clippy gcc protobuf rust-analyzer rustc rustfmt ];
+
+          RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+        };
+      });
+}

src/lib.rs

@@ -20,6 +20,14 @@ use opentelemetry_0_15_pkg as opentelemetry;
 use opentelemetry_0_16_pkg as opentelemetry;
 #[cfg(feature = "opentelemetry_0_17")]
 use opentelemetry_0_17_pkg as opentelemetry;
+#[cfg(feature = "opentelemetry_0_18")]
+use opentelemetry_0_18_pkg as opentelemetry;
+#[cfg(feature = "opentelemetry_0_19")]
+use opentelemetry_0_19_pkg as opentelemetry;
+#[cfg(feature = "opentelemetry_0_20")]
+use opentelemetry_0_20_pkg as opentelemetry;
+#[cfg(feature = "opentelemetry_0_21")]
+use opentelemetry_0_21_pkg as opentelemetry;
 
 #[cfg(feature = "opentelemetry_0_13")]
 use tracing_opentelemetry_0_12_pkg as tracing_opentelemetry;
@@ -31,23 +39,47 @@ use tracing_opentelemetry_0_14_pkg as tracing_opentelemetry;
 use tracing_opentelemetry_0_16_pkg as tracing_opentelemetry;
 #[cfg(feature = "opentelemetry_0_17")]
 use tracing_opentelemetry_0_17_pkg as tracing_opentelemetry;
+#[cfg(feature = "opentelemetry_0_18")]
+use tracing_opentelemetry_0_18_pkg as tracing_opentelemetry;
+#[cfg(feature = "opentelemetry_0_19")]
+use tracing_opentelemetry_0_19_pkg as tracing_opentelemetry;
+#[cfg(feature = "opentelemetry_0_20")]
+use tracing_opentelemetry_0_21_pkg as tracing_opentelemetry;
+#[cfg(feature = "opentelemetry_0_21")]
+use tracing_opentelemetry_0_22_pkg as tracing_opentelemetry;
 
 #[cfg(any(
     feature = "opentelemetry_0_13",
     feature = "opentelemetry_0_14",
     feature = "opentelemetry_0_15",
     feature = "opentelemetry_0_16",
-    feature = "opentelemetry_0_17"
+    feature = "opentelemetry_0_17",
+    feature = "opentelemetry_0_18",
+    feature = "opentelemetry_0_19",
+    feature = "opentelemetry_0_20",
+    feature = "opentelemetry_0_21",
 ))]
 pub fn root_span() -> Span {
     let span = tracing::info_span!("Root span", trace_id = tracing::field::Empty,);
     {
         use opentelemetry::trace::TraceContextExt;
         use tracing_opentelemetry::OpenTelemetrySpanExt;
-        #[cfg(not(feature = "opentelemetry_0_17"))]
+        #[cfg(not(any(
+            feature = "opentelemetry_0_17",
+            feature = "opentelemetry_0_18",
+            feature = "opentelemetry_0_19",
+            feature = "opentelemetry_0_20",
+            feature = "opentelemetry_0_21",
+        )))]
         let trace_id = span.context().span().span_context().trace_id().to_hex();
 
-        #[cfg(feature = "opentelemetry_0_17")]
+        #[cfg(any(
+            feature = "opentelemetry_0_17",
+            feature = "opentelemetry_0_18",
+            feature = "opentelemetry_0_19",
+            feature = "opentelemetry_0_20",
+            feature = "opentelemetry_0_21",
+        ))]
         let trace_id = {
             let id = span.context().span().span_context().trace_id();
             format!("{:032x}", id)
@@ -79,7 +111,7 @@ where
 {
     type Response = ConnectResponse;
     type Error = SendRequestError;
-    type Future = TracingFuture<S::Future>;
+    type Future = Instrumented<TracingFuture<S::Future>>;
 
     fn poll_ready(&self, ctx: &mut core::task::Context<'_>) -> Poll<Result<(), Self::Error>> {
         self.0.poll_ready(ctx)
@@ -106,19 +138,19 @@ where
 
         match request_head.version {
             actix_http::Version::HTTP_09 => {
-                span.record("http.flavor", &"0.9");
+                span.record("http.flavor", "0.9");
             }
             actix_http::Version::HTTP_10 => {
-                span.record("http.flavor", &"1.0");
+                span.record("http.flavor", "1.0");
             }
             actix_http::Version::HTTP_11 => {
-                span.record("http.flavor", &"1.1");
+                span.record("http.flavor", "1.1");
             }
             actix_http::Version::HTTP_2 => {
-                span.record("http.flavor", &"2.0");
+                span.record("http.flavor", "2.0");
             }
             actix_http::Version::HTTP_3 => {
-                span.record("http.flavor", &"3.0");
+                span.record("http.flavor", "3.0");
             }
             _ => (),
         }
@@ -142,16 +174,16 @@ where
         }
 
         TracingFuture {
-            future: self.0.call(req).instrument(span.clone()),
-            span,
+            future: span
+                .in_scope(|| self.0.call(req))
+                .instrument(tracing::trace_span!(parent: None, "Http Request Inner")),
         }
+        .instrument(span)
     }
 }
 
 pin_project_lite::pin_project! {
     pub struct TracingFuture<F> {
-        span: Span,
-
         #[pin]
         future: Instrumented<F>,
     }
@@ -166,62 +198,60 @@ where
     fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         let this = self.as_mut().project();
 
+        let span = Span::current();
+
         let future = this.future;
-        let span = this.span;
 
-        span.in_scope(|| {
-            future
-                .poll(cx)
-                .map_ok(|succ| match succ {
-                    ConnectResponse::Client(client_response) => {
-                        let status: i32 = client_response.status().as_u16().into();
-                        span.record("http.status_code", &status);
-                        if client_response.status().is_client_error() {
-                            span.record("otel.status_code", &"ERROR");
-                        }
-
-                        ConnectResponse::Client(client_response.map_body(|_, payload| {
-                            let body_span =
-                                tracing::info_span!(parent: None, "HTTP Client Response Body");
-                            let payload = InstrumentedBody::new(body_span, payload);
-                            let payload: Pin<Box<dyn Stream<Item = Result<Bytes, PayloadError>>>> =
-                                Box::pin(payload);
-
-                            Payload::Stream { payload }
-                        }))
+        future
+            .poll(cx)
+            .map_ok(|succ| match succ {
+                ConnectResponse::Client(client_response) => {
+                    let status: i32 = client_response.status().as_u16().into();
+                    span.record("http.status_code", status);
+                    if client_response.status().is_client_error() {
+                        span.record("otel.status_code", "ERROR");
                     }
-                    ConnectResponse::Tunnel(response_head, etc) => {
-                        let status: i32 = response_head.status.as_u16().into();
-                        span.record("http.status_code", &status);
-                        if response_head.status.is_client_error() {
-                            span.record("otel.status_code", &"ERROR");
-                        }
-                        ConnectResponse::Tunnel(response_head, etc)
+
+                    ConnectResponse::Client(client_response.map_body(|_, payload| {
+                        let payload = InstrumentedBody::new(payload);
+                        let payload: Pin<Box<dyn Stream<Item = Result<Bytes, PayloadError>>>> =
+                            Box::pin(payload);
+
+                        Payload::Stream { payload }
+                    }))
+                }
+                ConnectResponse::Tunnel(response_head, etc) => {
+                    let status: i32 = response_head.status.as_u16().into();
+                    span.record("http.status_code", status);
+                    if response_head.status.is_client_error() {
+                        span.record("otel.status_code", "ERROR");
                     }
-                })
-                .map_err(|err| {
-                    span.record("otel.status_code", &"ERROR");
-                    span.record(
-                        "exception.message",
-                        &tracing::field::display(&format!("{}", err)),
-                    );
-                    span.record(
-                        "exception.details",
-                        &tracing::field::display(&format!("{:?}", err)),
-                    );
+                    ConnectResponse::Tunnel(response_head, etc)
+                }
+            })
+            .map_err(|err| {
+                span.record("otel.status_code", "ERROR");
+                span.record(
+                    "exception.message",
+                    &tracing::field::display(&format!("{}", err)),
+                );
+                span.record(
+                    "exception.details",
+                    &tracing::field::display(&format!("{:?}", err)),
+                );
 
-                    #[cfg(feature = "emit_event_on_error")]
-                    tracing::warn!("Error in request: {}", err);
+                #[cfg(feature = "emit_event_on_error")]
+                tracing::warn!("Error in request: {}", err);
 
-                    err
-                })
-        })
+                err
+            })
     }
 }
 
 pin_project_lite::pin_project! {
     struct InstrumentedBody<S> {
-        span: Span,
+        span: Option<Span>,
+        dummy_span: Option<Span>,
 
         #[pin]
         body: S,
@@ -232,8 +262,12 @@ impl<S> InstrumentedBody<S>
 where
     S: Stream<Item = Result<Bytes, PayloadError>>,
 {
-    fn new(span: Span, body: S) -> InstrumentedBody<S> {
-        InstrumentedBody { span, body }
+    fn new(body: S) -> InstrumentedBody<S> {
+        InstrumentedBody {
+            span: None,
+            dummy_span: None,
+            body,
+        }
     }
 }
 
@@ -246,10 +280,26 @@ where
     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
         let this = self.as_mut().project();
 
-        let span = this.span;
+        let span = this
+            .span
+            .get_or_insert_with(|| tracing::info_span!("HTTP Client Response Body"));
+
+        let dummy_span = this.dummy_span.get_or_insert_with(
+            || tracing::trace_span!(parent: None, "HTTP Client Response Body Inner"),
+        );
+
         let body = this.body;
 
-        span.in_scope(|| body.poll_next(cx))
+        let res = span.in_scope(|| dummy_span.in_scope(|| body.poll_next(cx)));
+
+        match res {
+            Poll::Ready(None) => {
+                this.span.take();
+                this.dummy_span.take();
+                Poll::Ready(None)
+            }
+            otherwise => otherwise,
+        }
     }
 }
 
@@ -264,7 +314,11 @@ struct RequestHeaderCarrier<'a> {
     feature = "opentelemetry_0_14",
     feature = "opentelemetry_0_15",
     feature = "opentelemetry_0_16",
-    feature = "opentelemetry_0_17"
+    feature = "opentelemetry_0_17",
+    feature = "opentelemetry_0_18",
+    feature = "opentelemetry_0_19",
+    feature = "opentelemetry_0_20",
+    feature = "opentelemetry_0_21",
 ))]
 impl<'a> opentelemetry::propagation::Injector for RequestHeaderCarrier<'a> {
     fn set(&mut self, key: &str, value: String) {
@@ -297,7 +351,11 @@ fn record_otel(_headers: &mut HeaderMap, _span: &Span) {
         feature = "opentelemetry_0_14",
         feature = "opentelemetry_0_15",
         feature = "opentelemetry_0_16",
-        feature = "opentelemetry_0_17"
+        feature = "opentelemetry_0_17",
+        feature = "opentelemetry_0_18",
+        feature = "opentelemetry_0_19",
+        feature = "opentelemetry_0_20",
+        feature = "opentelemetry_0_21",
     ))]
     {
         let span = _span;