diff --git a/rust-toolchain b/rust-toolchain
index 3175ecdf..9393e6a7 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2020-09-25
+nightly-2020-09-30
diff --git a/src/bin/rust-semver-public.rs b/src/bin/rust-semver-public.rs
index 8cc0a242..7e981c39 100644
--- a/src/bin/rust-semver-public.rs
+++ b/src/bin/rust-semver-public.rs
@@ -115,7 +115,7 @@ fn main() {
             };
 
             let args = args;
-            rustc_driver::run_compiler(&args, &mut PubCallbacks, None, None)
+            rustc_driver::run_compiler(&args, &mut PubCallbacks, None, None, None)
         }
         .map_or_else(|_| 1, |_| 0),
     )
diff --git a/src/bin/rust-semverver.rs b/src/bin/rust-semverver.rs
index fc80ad4d..fb84e478 100644
--- a/src/bin/rust-semverver.rs
+++ b/src/bin/rust-semverver.rs
@@ -141,7 +141,7 @@ fn main() {
             };
 
             let args = args;
-            rustc_driver::run_compiler(&args, &mut SemverCallbacks, None, None)
+            rustc_driver::run_compiler(&args, &mut SemverCallbacks, None, None, None)
         }
         .map_or_else(|_| 1, |_| 0),
     )