Moved code officially to run on nightly since it's a dependency

Makefile

@@ -320,7 +320,7 @@ $(BUILDDIR)/uutils: $(SRCDIR)/uutils/uutils.rs $(BUILDDIR)/mkuutils $(RLIB_PATHS
 # Library for stdbuf
 $(BUILDDIR)/libstdbuf.$(DYLIB_EXT): $(SRCDIR)/stdbuf/libstdbuf.rs $(SRCDIR)/stdbuf/libstdbuf.c $(SRCDIR)/stdbuf/libstdbuf.h | $(BUILDDIR)
 	cd $(SRCDIR)/stdbuf && \
-	$(RUSTC) libstdbuf.rs && \
+	$(RUSTC) libstdbuf.rs --extern libc=$(BUILDDIR)/liblibc.rlib && \
 	$(CC) -c -Wall -Werror -fPIC libstdbuf.c && \
 	$(CC) $(DYLIB_FLAGS) -o libstdbuf.$(DYLIB_EXT) liblibstdbuf.a libstdbuf.o && \
 	mv *.$(DYLIB_EXT) $(BUILDDIR) && $(RM) *.o && $(RM) *.a

src/echo/echo.rs

@@ -174,8 +174,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     };
 
     if !free.is_empty() {
-        // NB: Using deprecated connect() until Rust 1.3 becomes stable.
+        let string = free.join(" ");
-        let string = free.connect(" ");
         if options.escape {
             let mut prev_was_slash = false;
             let mut iter = string.chars().enumerate();

src/fold/fold.rs

@@ -153,7 +153,7 @@ fn fold_file<T: Read>(mut file: BufReader<T>, bytes: bool, spaces: bool, width:
                                 match rfind_whitespace(slice) {
                                     Some(m) => {
                                         let routput = &slice[m + 1 .. slice.chars().count()];
-                                        let ncount = routput.chars().fold(0usize, |out, ch: char| {
+                                        let ncount = routput.chars().fold(0, |out, ch: char| {
                                             out + match ch {
                                                 '\t' => 8,
                                                 '\x08' => if out > 0 { -1 } else { 0 },

src/ptx/ptx.rs

@@ -420,9 +420,7 @@ fn adjust_tex_str(context: &str) -> String {
     let ws_reg = Regex::new(r"[\t\n\v\f\r ]").unwrap();
     let mut fix: String = ws_reg.replace_all(context, " ").trim().to_string();
     let mapped_chunks: Vec<String> = fix.chars().map(tex_mapper).collect();
-    // NB: Using deprecated connect() until Rust 1.3 becomes stable.
+    fix = mapped_chunks.join("");
-    //     When 1.3 is released, replace connect() with join().
-    fix = mapped_chunks.connect("");
     fix
 }
 

src/stdbuf/libstdbuf.rs

@@ -1,6 +1,5 @@
 #![crate_name = "libstdbuf"]
 #![crate_type = "staticlib"]
-#![feature(libc)]
 
 extern crate libc;
 

src/stdbuf/stdbuf.rs

@@ -1,5 +1,4 @@
 #![crate_name = "stdbuf"]
-#![feature(negate_unsigned)]
 
 /*
 * This file is part of the uutils coreutils package.

src/timeout/timeout.rs

@@ -1,5 +1,4 @@
 #![crate_name = "timeout"]
-#![feature(process_id)]
 
 /*
  * This file is part of the uutils coreutils package.

src/users/users.rs

@@ -117,7 +117,6 @@ fn exec(filename: &str) {
 
     if users.len() > 0 {
         users.sort();
-        // NB: Using deprecated connect() until Rust 1.3 becomes stable.
+        println!("{}", users.join(" "));
-        println!("{}", users.connect(" "));
     }
 }

src/yes/yes.rs

@@ -50,8 +50,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     let string = if matches.free.is_empty() {
         "y".to_string()
     } else {
-        // NB: Using deprecated connect() until Rust 1.3 becomes stable.
+        matches.free.join(" ")
-        matches.free.connect(" ")
     };
 
     exec(&string[..]);