opentelemetry crate no longer depends on futures-channel (#1229)

opentelemetry-stackdriver/src/lib.rs

@@ -96,7 +96,9 @@ impl StackDriverExporter {
 impl SpanExporter for StackDriverExporter {
     fn export(&mut self, batch: Vec<SpanData>) -> BoxFuture<'static, ExportResult> {
         match self.tx.try_send(batch) {
-            Err(e) => Box::pin(std::future::ready(Err(e.into()))),
+            Err(e) => Box::pin(std::future::ready(Err(TraceError::Other(Box::new(
+                e.into_send_error(),
+            ))))),
             Ok(()) => {
                 self.pending_count.fetch_add(1, Ordering::Relaxed);
                 Box::pin(std::future::ready(Ok(())))

opentelemetry/CHANGELOG.md

@@ -27,6 +27,9 @@ This release should been seen as 1.0-rc3 following 1.0-rc2 in v0.19.0. Refer to
 - Drop include_trace_context parameter from Logs API/SDK. [#1133](https://github.com/open-telemetry/opentelemetry-rust/issues/1133)
 - Synchronous instruments no longer accepts `Context` while reporting
   measurements. [#1076](https://github.com/open-telemetry/opentelemetry-rust/pull/1076).
+- Fallible conversions from `futures-channel` error types to `LogError` and
+  `TraceError` removed.
+  [#1201](https://github.com/open-telemetry/opentelemetry-rust/issues/1201)
 
 ### Fixed
 

opentelemetry/Cargo.toml

@@ -21,7 +21,6 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-futures-channel = "0.3"
 futures-util = { version = "0.3", default-features = false, features = ["std", "sink"] }
 indexmap = "2.0"
 once_cell = "1.12.0"

opentelemetry/src/logs/mod.rs

@@ -1,7 +1,6 @@
 //! # OpenTelemetry Logs API
 
 use crate::ExportError;
-use futures_channel::{mpsc::TrySendError, oneshot::Canceled};
 use std::time::Duration;
 use thiserror::Error;
 
@@ -42,18 +41,6 @@ where
     }
 }
 
-impl<T> From<TrySendError<T>> for LogError {
-    fn from(err: TrySendError<T>) -> Self {
-        LogError::Other(Box::new(err.into_send_error()))
-    }
-}
-
-impl From<Canceled> for LogError {
-    fn from(err: Canceled) -> Self {
-        LogError::Other(Box::new(err))
-    }
-}
-
 impl From<String> for LogError {
     fn from(err_msg: String) -> Self {
         LogError::Other(Box::new(Custom(err_msg)))

opentelemetry/src/trace/mod.rs

@@ -162,7 +162,6 @@
 //! some_work().with_context(Context::current_with_span(span));
 //! ```
 
-use futures_channel::{mpsc::TrySendError, oneshot::Canceled};
 use std::borrow::Cow;
 use std::time;
 use thiserror::Error;
@@ -218,18 +217,6 @@ where
     }
 }
 
-impl<T> From<TrySendError<T>> for TraceError {
-    fn from(err: TrySendError<T>) -> Self {
-        TraceError::Other(Box::new(err.into_send_error()))
-    }
-}
-
-impl From<Canceled> for TraceError {
-    fn from(err: Canceled) -> Self {
-        TraceError::Other(Box::new(err))
-    }
-}
-
 impl From<String> for TraceError {
     fn from(err_msg: String) -> Self {
         TraceError::Other(Box::new(Custom(err_msg)))