mv std libs to library/

library/core/src/task/mod.rs

@@ -0,0 +1,15 @@
+#![stable(feature = "futures_api", since = "1.36.0")]
+
+//! Types and Traits for working with asynchronous tasks.
+
+mod poll;
+#[stable(feature = "futures_api", since = "1.36.0")]
+pub use self::poll::Poll;
+
+mod wake;
+#[stable(feature = "futures_api", since = "1.36.0")]
+pub use self::wake::{Context, RawWaker, RawWakerVTable, Waker};
+
+mod ready;
+#[unstable(feature = "ready_macro", issue = "70922")]
+pub use ready::ready;