Set the desired nightly toolchain

cfrantz · cfrantz · commit f0338644d8d8 · 2022-10-31T14:13:37.000-07:00
Signed-off-by: Chris Frantz &lt;cfrantz@google.com&gt;
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly-2022-09-21"
