needless_collect: For `BTreeMap` and `HashMap` lint only `is_empty`

[rust.git] / rust-toolchain

diff --git a/rust-toolchain b/rust-toolchain
index c52a7f2e74321884b633f1e0b89f3932fc3ee83f..cd398451783d6bc53b03596e5b7a55956c9a19d3 100644 (file)
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-03-11"
+channel = "nightly-2021-04-22"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src"]