diff --git a/build.rs b/build.rs
index dddc029e221a0..420e15965121b 100644
--- a/build.rs
+++ b/build.rs
@@ -7,7 +7,8 @@ fn main() {
         rustc_minor_nightly().expect("Failed to get rustc version");
     let rustc_dep_of_std = env::var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok();
     let align_cargo_feature = env::var("CARGO_FEATURE_ALIGN").is_ok();
-    let const_extern_fn_cargo_feature = env::var("CARGO_FEATURE_CONST_EXTERN_FN").is_ok();
+    let const_extern_fn_cargo_feature =
+        env::var("CARGO_FEATURE_CONST_EXTERN_FN").is_ok();
     let libc_ci = env::var("LIBC_CI").is_ok();
 
     if env::var("CARGO_FEATURE_USE_STD").is_ok() {
@@ -103,7 +104,8 @@ fn rustc_minor_nightly() -> Option<(u32, bool)> {
 
     let minor = pieces.next();
     let nightly_raw = otry!(otry!(pieces.next()).split('-').nth(1));
-    let nightly = nightly_raw.starts_with("dev") || nightly_raw.starts_with("nightly");
+    let nightly =
+        nightly_raw.starts_with("dev") || nightly_raw.starts_with("nightly");
     let minor = otry!(otry!(minor).parse().ok());
 
     Some((minor, nightly))
diff --git a/tests/const_fn.rs b/tests/const_fn.rs
index 4c413c90e8faa..0e7e1864b9f85 100644
--- a/tests/const_fn.rs
+++ b/tests/const_fn.rs
@@ -1,5 +1,5 @@
 #![cfg(libc_const_extern_fn)] // If this does not hold, the file is empty
 
 #[cfg(target_os = "linux")]
-const _FOO: libc::c_uint = unsafe { libc::CMSG_SPACE(1) }; 
+const _FOO: libc::c_uint = unsafe { libc::CMSG_SPACE(1) };
 //^ if CMSG_SPACE is not const, this will fail to compile