无法编译，因为opentelem遥测和opentelemetry更新

Question

我的这个函数在opentelemetry = { version = "0.17", features = ["tokio"] }和opentelemetry-jaeger = { version = "0.16", features = ["rt-tokio"] }中运行得非常好。

pub fn get_subscriber(name: String, env_filter: String) -> impl Subscriber + Sync + Send {
    // Building the jaeger layer, if needed
    let telemetry = if std::env::var("JAEGER_ENABLED").is_ok() {
        let tracer = opentelemetry_jaeger::new_pipeline()
            .with_service_name(&name)
            .install_batch(opentelemetry::runtime::Tokio)
            .unwrap();
        Some(tracing_opentelemetry::layer().with_tracer(tracer))
    } else {
        None
    };

    let env_filter =
        EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new(env_filter));
    let formatting_layer = BunyanFormattingLayer::new(name, std::io::stdout);

    Registry::default()
        .with(env_filter)
        .with(JsonStorageLayer)
        .with(formatting_layer)
        .with(sentry_tracing::layer())
        .with(telemetry)
}

一切都像这样工作得很好，启用后我可以在Jaeger中找到我的跟踪。

因为我更新到opentelemetry = { version = "0.18", features = ["rt-tokio"] }和opentelemetry-jaeger = { version = "0.17", features = ["rt-tokio"] }，它不再编译了

   Compiling rss-common v0.1.0 (/home/eric/dev/rss-aggregator/rss-common)
error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: opentelemetry::trace::tracer::Tracer` is not satisfied
   --> rss-common/src/observability.rs:14:57
    |
14  |         Some(tracing_opentelemetry::layer().with_tracer(tracer))
    |                                             ----------- ^^^^^^ the trait `opentelemetry::trace::tracer::Tracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
    |                                             |
    |                                             required by a bound introduced by this call
    |
    = help: the following other types implement trait `opentelemetry::trace::tracer::Tracer`:
              opentelemetry::global::trace::BoxedTracer
              opentelemetry::sdk::trace::tracer::Tracer
              opentelemetry::trace::noop::NoopTracer
note: required by a bound in `OpenTelemetryLayer::<S, T>::with_tracer`
   --> /home/eric/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-opentelemetry-0.17.4/src/layer.rs:464:17
    |
464 |         Tracer: otel::Tracer + PreSampledTracer + 'static,
    |                 ^^^^^^^^^^^^ required by this bound in `OpenTelemetryLayer::<S, T>::with_tracer`

error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: PreSampledTracer` is not satisfied
   --> rss-common/src/observability.rs:14:57
    |
14  |         Some(tracing_opentelemetry::layer().with_tracer(tracer))
    |                                             ----------- ^^^^^^ the trait `PreSampledTracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
    |                                             |
    |                                             required by a bound introduced by this call
    |
    = help: the following other types implement trait `PreSampledTracer`:
              opentelemetry::sdk::trace::tracer::Tracer
              opentelemetry::trace::noop::NoopTracer
note: required by a bound in `OpenTelemetryLayer::<S, T>::with_tracer`
   --> /home/eric/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-opentelemetry-0.17.4/src/layer.rs:464:32
    |
464 |         Tracer: otel::Tracer + PreSampledTracer + 'static,
    |                                ^^^^^^^^^^^^^^^^ required by this bound in `OpenTelemetryLayer::<S, T>::with_tracer`

error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: opentelemetry::trace::tracer::Tracer` is not satisfied
    --> rss-common/src/observability.rs:28:15
     |
28   |         .with(telemetry)
     |          ---- ^^^^^^^^^ the trait `opentelemetry::trace::tracer::Tracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
     |          |
     |          required by a bound introduced by this call
     |
     = help: the following other types implement trait `opentelemetry::trace::tracer::Tracer`:
               opentelemetry::global::trace::BoxedTracer
               opentelemetry::sdk::trace::tracer::Tracer
               opentelemetry::trace::noop::NoopTracer
     = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>`
     = note: 1 redundant requirement hidden
     = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>`
note: required by a bound in `with`
    --> /home/eric/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.3.15/src/layer/mod.rs:1440:12
     |
1440 |         L: Layer<Self>,
     |            ^^^^^^^^^^^ required by this bound in `with`

error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: PreSampledTracer` is not satisfied
    --> rss-common/src/observability.rs:28:15
     |
28   |         .with(telemetry)
     |          ---- ^^^^^^^^^ the trait `PreSampledTracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
     |          |
     |          required by a bound introduced by this call
     |
     = help: the following other types implement trait `PreSampledTracer`:
               opentelemetry::sdk::trace::tracer::Tracer
               opentelemetry::trace::noop::NoopTracer
     = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>`
     = note: 1 redundant requirement hidden
     = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>`
note: required by a bound in `with`
    --> /home/eric/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.3.15/src/layer/mod.rs:1440:12
     |
1440 |         L: Layer<Self>,
     |            ^^^^^^^^^^^ required by this bound in `with`

error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: opentelemetry::trace::tracer::Tracer` is not satisfied
 --> rss-common/src/observability.rs:7:60
  |
7 | pub fn get_subscriber(name: String, env_filter: String) -> impl Subscriber + Sync + Send {
  |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `opentelemetry::trace::tracer::Tracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
  |
  = help: the following other types implement trait `opentelemetry::trace::tracer::Tracer`:
            opentelemetry::global::trace::BoxedTracer
            opentelemetry::sdk::trace::tracer::Tracer
            opentelemetry::trace::noop::NoopTracer
  = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>`
  = note: 1 redundant requirement hidden
  = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>`
  = note: required because of the requirements on the impl of `tracing::Subscriber` for `Layered<Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>, Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>`

error[E0277]: the trait bound `opentelemetry::sdk::trace::Tracer: PreSampledTracer` is not satisfied
 --> rss-common/src/observability.rs:7:60
  |
7 | pub fn get_subscriber(name: String, env_filter: String) -> impl Subscriber + Sync + Send {
  |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `PreSampledTracer` is not implemented for `opentelemetry::sdk::trace::Tracer`
  |
  = help: the following other types implement trait `PreSampledTracer`:
            opentelemetry::sdk::trace::tracer::Tracer
            opentelemetry::trace::noop::NoopTracer
  = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>`
  = note: 1 redundant requirement hidden
  = note: required because of the requirements on the impl of `__tracing_subscriber_Layer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>` for `Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>`
  = note: required because of the requirements on the impl of `tracing::Subscriber` for `Layered<Option<OpenTelemetryLayer<Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, opentelemetry::sdk::trace::Tracer>>, Layered<SentryLayer<Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>, Layered<BunyanFormattingLayer<fn() -> Stdout {stdout}>, Layered<JsonStorageLayer, Layered<EnvFilter, Registry>>>>>`

For more information about this error, try `rustc --explain E0277`.
error: could not compile `rss-common` due to 6 previous errors

我查看了上述板条箱的更改日志，发现我应该更改哪些内容以使其再次编译，并没有发现任何明显的变化。

我该换什么？

Answer 1

很简单。您正在使用追踪-opentelemetry连接追迹和蛋白石法生态系统，但是到目前为止，机箱还没有更新以支持opentelementry的0.18版本。如果没有这一层功能，除非您想放弃跟踪集成，否则您就不能更新到最新的opentelem遥测版本。

我看到了最新版本的开发人员已合并为支援，但它似乎还没有发布。耐心点。:)