diff --git a/.azure/azure-pipelines.yml b/.azure/azure-pipelines.yml
index 54bbc5bb7d..038345194b 100644
--- a/.azure/azure-pipelines.yml
+++ b/.azure/azure-pipelines.yml
@@ -1,5 +1,5 @@
 variables:
-  lkg-rust-nightly: "2019-08-08"
+  lkg-rust-nightly: "2019-08-22"
 
 trigger:
   - master
diff --git a/src/lib.rs b/src/lib.rs
index 6386547c66..41185bbc5c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,11 +1,8 @@
 #![feature(crate_visibility_modifier)]
 #![feature(in_band_lifetimes)]
-#![feature(async_await)]
 #![feature(generators)]
 #![feature(try_trait)]
 #![feature(bind_by_move_pattern_guards)]
-#![feature(box_syntax)]
-#![feature(type_ascription)]
 #![feature(core_intrinsics)]
 #![feature(option_flattening)]
 #![feature(specialization)]
diff --git a/src/main.rs b/src/main.rs
index 9ad29a625a..882caaa6a6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,3 @@
-#![feature(crate_visibility_modifier)]
-#![feature(in_band_lifetimes)]
-#![feature(async_await)]
-#![feature(try_trait)]
-#![feature(bind_by_move_pattern_guards)]
-
 use clap::{App, Arg};
 use log::LevelFilter;
 use std::error::Error;
diff --git a/src/plugins/sys.rs b/src/plugins/sys.rs
index 8d193d7c61..c442f39f9d 100644
--- a/src/plugins/sys.rs
+++ b/src/plugins/sys.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use futures::executor::block_on;
 use futures::stream::StreamExt;
 use heim::{disk, memory, net};