Adjust fuzzer and cargo to changes in core::str API

src/cargo/cargo.rs

@@ -686,7 +686,7 @@ fn cmd_install(c: cargo) unsafe {
 
     if str::starts_with(target, "uuid:") {
         let uuid = rest(target, 5u);
-        alt str::index(uuid, '/') {
+        alt str::find_char(uuid, '/') {
             option::some(idx) {
                let source = str::slice(uuid, 0u, idx);
                uuid = str::slice(uuid, idx + 1u, str::len(uuid));
@@ -698,7 +698,7 @@ fn cmd_install(c: cargo) unsafe {
         }
     } else {
         let name = target;
-        alt str::index(name, '/') {
+        alt str::find_char(name, '/') {
             option::some(idx) {
                let source = str::slice(name, 0u, idx);
                name = str::slice(name, idx + 1u, str::len(name));

src/cargo/pgp.rs

@@ -94,7 +94,7 @@ fn verify(root: str, data: str, sig: str, keyfp: str) -> bool {
     let p = gpg(["--homedir", path, "--with-fingerprint", "--verify", sig,
                  data]);
     let res = "Primary key fingerprint: " + keyfp;
-    for line in str::split_byte(p.err, '\n' as u8) {
+    for line in str::split_char(p.err, '\n') {
         if line == res {
             ret true;
         }

src/fuzzer/fuzzer.rs

@@ -286,7 +286,7 @@ fn check_variants_T<T: copy>(
 }
 
 fn last_part(filename: str) -> str {
-  let ix = option::get(str::rindex(filename, '/'));
+  let ix = option::get(str::rfind_char(filename, '/'));
   str::slice(filename, ix + 1u, str::len(filename) - 3u)
 }