Update feature flags

src/base64/base64.rs

@@ -1,5 +1,5 @@
 #![crate_name = "base64"]
-#![feature(collections, core, old_io, old_path, rustc_private, std_misc)]
+#![feature(collections, core, old_io, old_path, rustc_private)]
 
 /*
  * This file is part of the uutils coreutils package.

src/hashsum/hashsum.rs

@@ -1,5 +1,5 @@
 #![crate_name = "hashsum"]
-#![feature(collections, core, old_io, old_path, rustc_private, std_misc)]
+#![feature(collections, core, old_io, old_path, rustc_private)]
 
 /*
  * This file is part of the uutils coreutils package.

src/timeout/timeout.rs

@@ -1,5 +1,5 @@
 #![crate_name = "timeout"]
-#![feature(collections, core, old_io, rustc_private)]
+#![feature(collections, core, io, old_io, rustc_private)]
 
 /*
  * This file is part of the uutils coreutils package.

src/truncate/truncate.rs

@@ -1,5 +1,5 @@
 #![crate_name = "truncate"]
-#![feature(collections, core, old_io, old_path, rustc_private, std_misc)]
+#![feature(collections, core, old_io, old_path, rustc_private)]
 
 /*
  * This file is part of the uutils coreutils package.

src/uptime/uptime.rs

@@ -1,5 +1,5 @@
 #![crate_name = "uptime"]
-#![feature(collections, core, old_io, old_path, rustc_private, std_misc)]
+#![feature(collections, core, old_io, old_path, rustc_private, std_misc, str_words)]
 
 /*
  * This file is part of the uutils coreutils package.

src/wc/wc.rs

@@ -1,5 +1,5 @@
 #![crate_name = "wc"]
-#![feature(collections, core, old_io, old_path, rustc_private, std_misc)]
+#![feature(collections, old_io, old_path, rustc_private, str_words)]
 
 /*
  * This file is part of the uutils coreutils package.

src/yes/yes.rs

@@ -1,5 +1,5 @@
 #![crate_name = "yes"]
-#![feature(collections, core, old_io, rustc_private)]
+#![feature(collections, old_io, rustc_private)]
 
 /*
  * This file is part of the uutils coreutils package.