remove unused import warnings

29 files changed, 14 insertions, 52 deletions

diff --git a/src/compiletest/procsrv.rs b/src/compiletest/procsrv.rs
index 62f0731dab6..f86ab2c9093 100644
--- a/src/compiletest/procsrv.rs
+++ b/src/compiletest/procsrv.rs
@@ -10,14 +10,9 @@
 
 use core::prelude::*;
 
-use core::comm;
-use core::io;
-use core::libc::c_int;
 use core::os;
 use core::run;
 use core::str;
-use core::task;
-use core::vec;
 
 #[cfg(target_os = "win32")]
 fn target_env(lib_path: &str, prog: &str) -> ~[(~str,~str)] {
@@ -74,4 +69,3 @@ pub fn run(lib_path: &str,
         err: str::from_bytes(output.error)
     }
 }
-
diff --git a/src/libextra/flate.rs b/src/libextra/flate.rs
index 076126e0432..0fde03b69cb 100644
--- a/src/libextra/flate.rs
+++ b/src/libextra/flate.rs
@@ -16,8 +16,6 @@ Simple compression
 
 #[allow(missing_doc)];
 
-use core::prelude::*;
-
 use core::libc::{c_void, size_t, c_int};
 use core::libc;
 use core::vec;
@@ -87,6 +85,7 @@ mod tests {
     use super::*;
     use core::rand;
     use core::rand::RngUtil;
+    use core::prelude::*;
 
     #[test]
     #[allow(non_implicitly_copyable_typarams)]
diff --git a/src/libextra/flatpipes.rs b/src/libextra/flatpipes.rs
index e8239b9f7fd..c0f619c1b85 100644
--- a/src/libextra/flatpipes.rs
+++ b/src/libextra/flatpipes.rs
@@ -654,7 +654,6 @@ mod test {
     use core::int;
     use core::io::BytesWriter;
     use core::result;
-    use core::sys;
     use core::task;
 
     #[test]
diff --git a/src/libextra/sort.rs b/src/libextra/sort.rs
index 420c63efab5..26d1e28e122 100644
--- a/src/libextra/sort.rs
+++ b/src/libextra/sort.rs
@@ -929,11 +929,8 @@ mod test_tim_sort {
     use core::prelude::*;
 
     use sort::tim_sort;
-
-    use core::local_data;
     use core::rand::RngUtil;
     use core::rand;
-    use core::uint;
     use core::vec;
 
     struct CVal {
diff --git a/src/libextra/std.rc b/src/libextra/std.rc
index 4e9a547e141..83c0bb516b4 100644
--- a/src/libextra/std.rc
+++ b/src/libextra/std.rc
@@ -148,4 +148,3 @@ pub mod extra {
     pub use serialize;
     pub use test;
 }
-
diff --git a/src/libextra/sync.rs b/src/libextra/sync.rs
index 28a5e5382be..8bbe0afa704 100644
--- a/src/libextra/sync.rs
+++ b/src/libextra/sync.rs
@@ -731,7 +731,6 @@ mod tests {
     use core::cast;
     use core::cell::Cell;
     use core::comm;
-    use core::ptr;
     use core::result;
     use core::task;
     use core::vec;
diff --git a/src/libextra/tempfile.rs b/src/libextra/tempfile.rs
index 6d0bd888195..98c57838072 100644
--- a/src/libextra/tempfile.rs
+++ b/src/libextra/tempfile.rs
@@ -34,7 +34,6 @@ mod tests {
     use core::prelude::*;
 
     use tempfile::mkdtemp;
-    use tempfile;
 
     use core::os;
     use core::str;
diff --git a/src/libextra/treemap.rs b/src/libextra/treemap.rs
index ebb0cdc120f..9db3d48a3b8 100644
--- a/src/libextra/treemap.rs
+++ b/src/libextra/treemap.rs
@@ -1034,8 +1034,6 @@ mod test_set {
 
     use super::*;
 
-    use core::vec;
-
     #[test]
     fn test_clear() {
         let mut s = TreeSet::new();
diff --git a/src/libextra/uv_ll.rs b/src/libextra/uv_ll.rs
index 2cb2eea8828..2522f149bf4 100644
--- a/src/libextra/uv_ll.rs
+++ b/src/libextra/uv_ll.rs
@@ -1234,7 +1234,6 @@ mod test {
 
     use core::comm::{SharedChan, stream, GenericChan, GenericPort};
     use core::libc;
-    use core::result;
     use core::str;
     use core::sys;
     use core::task;
diff --git a/src/librustc/front/test.rs b/src/librustc/front/test.rs
index cda7d1fa937..5d0de535629 100644
--- a/src/librustc/front/test.rs
+++ b/src/librustc/front/test.rs
@@ -22,7 +22,6 @@ use syntax::codemap::{dummy_sp, span, ExpandedFrom, CallInfo, NameAndSpan};
 use syntax::codemap;
 use syntax::ext::base::ExtCtxt;
 use syntax::fold;
-use syntax::parse::token;
 use syntax::print::pprust;
 use syntax::{ast, ast_util};
 
diff --git a/src/librustc/middle/trans/common.rs b/src/librustc/middle/trans/common.rs
index 774d2df1ca3..df5000a543c 100644
--- a/src/librustc/middle/trans/common.rs
+++ b/src/librustc/middle/trans/common.rs
@@ -53,7 +53,6 @@ use syntax::ast::ident;
 use syntax::ast_map::{path, path_elt};
 use syntax::codemap::span;
 use syntax::parse::token;
-use syntax::parse::token::ident_interner;
 use syntax::{ast, ast_map};
 use syntax::abi::{X86, X86_64, Arm, Mips};
 
diff --git a/src/librustc/middle/trans/debuginfo.rs b/src/librustc/middle/trans/debuginfo.rs
index eb173fb2c44..5f475f1bb9d 100644
--- a/src/librustc/middle/trans/debuginfo.rs
+++ b/src/librustc/middle/trans/debuginfo.rs
@@ -29,7 +29,6 @@ use core::str;
 use core::sys;
 use core::vec;
 use syntax::codemap::span;
-use syntax::parse::token::ident_interner;
 use syntax::{ast, codemap, ast_util, ast_map};
 
 static LLVMDebugVersion: int = (9 << 16);
diff --git a/src/librustc/rustc.rc b/src/librustc/rustc.rc
index baf920c04ac..0d26e4c6ef1 100644
--- a/src/librustc/rustc.rc
+++ b/src/librustc/rustc.rc
@@ -36,8 +36,6 @@ extern mod std(name = "std", vers = "0.7-pre");
 
 // For bootstrapping purposes.
 #[cfg(stage0)]
-pub use core::str;
-#[cfg(stage0)]
 pub use core::unstable;
 
 use core::prelude::*;
diff --git a/src/librustdoc/desc_to_brief_pass.rs b/src/librustdoc/desc_to_brief_pass.rs
index 3066e817044..24ade927be2 100644
--- a/src/librustdoc/desc_to_brief_pass.rs
+++ b/src/librustdoc/desc_to_brief_pass.rs
@@ -27,7 +27,6 @@ use pass::Pass;
 use core::iterator::IteratorUtil;
 use core::str;
 use core::util;
-use core::vec;
 
 pub fn mk_pass() -> Pass {
     Pass {
diff --git a/src/librustdoc/pass.rs b/src/librustdoc/pass.rs
index e83b7adad0e..31adb0f3b8d 100644
--- a/src/librustdoc/pass.rs
+++ b/src/librustdoc/pass.rs
@@ -10,7 +10,6 @@
 
 use core::prelude::*;
 
-use core::vec;
 use core::iterator::IteratorUtil;
 
 use astsrv;
diff --git a/src/librustdoc/unindent_pass.rs b/src/librustdoc/unindent_pass.rs
index 41a844c0b46..b6753f385df 100644
--- a/src/librustdoc/unindent_pass.rs
+++ b/src/librustdoc/unindent_pass.rs
@@ -24,7 +24,6 @@ use core::prelude::*;
 use core::iterator::IteratorUtil;
 use core::str;
 use core::uint;
-use core::vec;
 use pass::Pass;
 use text_pass;
 
diff --git a/src/libstd/at_vec.rs b/src/libstd/at_vec.rs
index 23f901c23ed..a118e445fe2 100644
--- a/src/libstd/at_vec.rs
+++ b/src/libstd/at_vec.rs
@@ -286,8 +286,6 @@ pub mod raw {
 #[cfg(test)]
 mod test {
     use super::*;
-    use prelude::*;
-
     use uint;
 
     #[test]
diff --git a/src/libstd/iter.rs b/src/libstd/iter.rs
index 8a0ec3ade4d..4886588bb94 100644
--- a/src/libstd/iter.rs
+++ b/src/libstd/iter.rs
@@ -42,7 +42,6 @@ much easier to implement.
 
 use cmp::Ord;
 use option::{Option, Some, None};
-use vec::OwnedVector;
 use num::{One, Zero};
 use ops::{Add, Mul};
 
diff --git a/src/libstd/iterator.rs b/src/libstd/iterator.rs
index 309e207eaaa..8803844fdd0 100644
--- a/src/libstd/iterator.rs
+++ b/src/libstd/iterator.rs
@@ -18,7 +18,6 @@ implementing the `Iterator` trait.
 */
 
 use cmp;
-use iter;
 use iter::{FromIter, Times};
 use num::{Zero, One};
 use option::{Option, Some, None};
diff --git a/src/libstd/ptr.rs b/src/libstd/ptr.rs
index c8e2f58d801..e2cbf716dd1 100644
--- a/src/libstd/ptr.rs
+++ b/src/libstd/ptr.rs
@@ -11,8 +11,6 @@
 //! Unsafe pointer utility functions
 
 use cast;
-#[cfg(stage0)] use libc;
-#[cfg(stage0)] use libc::{c_void, size_t};
 use option::{Option, Some, None};
 use sys;
 use unstable::intrinsics;
diff --git a/src/libstd/sys.rs b/src/libstd/sys.rs
index 583923bc2e3..87e13e494aa 100644
--- a/src/libstd/sys.rs
+++ b/src/libstd/sys.rs
@@ -14,7 +14,6 @@
 
 use option::{Some, None};
 use cast;
-use cmp::{Eq, Ord};
 use gc;
 use io;
 use libc;
diff --git a/src/libstd/trie.rs b/src/libstd/trie.rs
index 7899edbfcb9..4bd3946f885 100644
--- a/src/libstd/trie.rs
+++ b/src/libstd/trie.rs
@@ -14,7 +14,6 @@ use prelude::*;
 use iterator::IteratorUtil;
 use uint;
 use util::{swap, replace};
-use vec;
 
 // FIXME: #5244: need to manually update the TrieNode constructor
 static SHIFT: uint = 4;
diff --git a/src/libstd/vec.rs b/src/libstd/vec.rs
index bdc9fd0ccad..6137b589bdb 100644
--- a/src/libstd/vec.rs
+++ b/src/libstd/vec.rs
@@ -3349,13 +3349,13 @@ mod tests {
 
     #[test]
     fn test_each_ret_len0() {
-        let mut a0 : [int, .. 0] = [];
+        let a0 : [int, .. 0] = [];
         assert_eq!(each(a0, |_p| fail!()), true);
     }
 
     #[test]
     fn test_each_ret_len1() {
-        let mut a1 = [17];
+        let a1 = [17];
         assert_eq!(each(a1, |_p| true), true);
         assert_eq!(each(a1, |_p| false), false);
     }
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 5bbc5d4e819..f27ae3b828c 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -15,7 +15,7 @@ use core::prelude::*;
 use codemap::{span, spanned};
 use abi::AbiSet;
 use opt_vec::OptVec;
-use parse::token::{ident_to_str, interner_get, str_to_ident};
+use parse::token::{interner_get, str_to_ident};
 
 use core::hashmap::HashMap;
 use core::option::Option;
diff --git a/src/libsyntax/ast_util.rs b/src/libsyntax/ast_util.rs
index d170ca92678..b040397de72 100644
--- a/src/libsyntax/ast_util.rs
+++ b/src/libsyntax/ast_util.rs
@@ -20,7 +20,6 @@ use opt_vec;
 use parse::token;
 use visit;
 
-use core::iterator::IteratorUtil;
 use core::hashmap::HashMap;
 use core::int;
 use core::option;
@@ -793,6 +792,7 @@ mod test {
     use ast::*;
     use super::*;
     use core::io;
+    use core::iterator::IteratorUtil;
 
     #[test] fn xorpush_test () {
         let mut s = ~[];
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 1630fb11626..1e1f411c050 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -11,11 +11,11 @@
 use core::prelude::*;
 
 use ast::{blk_, attribute_, attr_outer, meta_word};
-use ast::{crate, decl_local, expr_, expr_mac, mac_invoc_tt};
-use ast::{item_mac, local_, stmt_, stmt_decl, stmt_mac, stmt_expr, stmt_semi};
-use ast::{SCTable, illegal_ctxt};
+use ast::{crate, expr_, expr_mac, mac_invoc_tt};
+use ast::{item_mac, stmt_, stmt_mac, stmt_expr, stmt_semi};
+use ast::{illegal_ctxt};
 use ast;
-use ast_util::{new_rename, new_mark, resolve, get_sctable};
+use ast_util::{new_rename, new_mark, resolve};
 use attr;
 use codemap;
 use codemap::{span, CallInfo, ExpandedFrom, NameAndSpan, spanned};
@@ -23,9 +23,9 @@ use ext::base::*;
 use fold::*;
 use parse;
 use parse::{parse_item_from_source_str};
-use parse::token::{ident_to_str, intern, fresh_name};
+use parse::token::{ident_to_str, intern};
 use visit;
-use visit::{Visitor,mk_vt};
+use visit::Visitor;
 
 use core::iterator::IteratorUtil;
 use core::vec;
@@ -749,16 +749,14 @@ mod test {
     use super::*;
     use ast;
     use ast::{attribute_, attr_outer, meta_word, empty_ctxt};
-    use ast_util::{get_sctable};
     use codemap;
     use codemap::spanned;
     use parse;
-    use parse::token::{gensym, intern, get_ident_interner};
+    use parse::token::{intern, get_ident_interner};
     use print::pprust;
     use util::parser_testing::{string_to_item, string_to_pat, strs_to_idents};
-    use visit::{mk_vt,Visitor};
+    use visit::{mk_vt};
 
-    use core::io;
     use core::option::{None, Some};
 
     // make sure that fail! is present
diff --git a/src/libsyntax/parse/comments.rs b/src/libsyntax/parse/comments.rs
index 22b9e7d6c5e..360ea12ec02 100644
--- a/src/libsyntax/parse/comments.rs
+++ b/src/libsyntax/parse/comments.rs
@@ -19,7 +19,6 @@ use parse::lexer::{is_line_non_doc_comment, is_block_non_doc_comment};
 use parse::lexer;
 use parse::token;
 use parse::token::{get_ident_interner};
-use parse;
 
 use core::iterator::IteratorUtil;
 use core::io;
diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs
index d7248204e1c..559bca34f21 100644
--- a/src/libsyntax/parse/mod.rs
+++ b/src/libsyntax/parse/mod.rs
@@ -341,10 +341,9 @@ mod test {
     use codemap::{span, BytePos, spanned};
     use opt_vec;
     use ast;
-    use ast::{new_ident};
     use abi;
     use parse::parser::Parser;
-    use parse::token::{intern, str_to_ident};
+    use parse::token::{str_to_ident};
     use util::parser_testing::{string_to_tts_and_sess, string_to_parser};
     use util::parser_testing::{string_to_expr, string_to_item};
     use util::parser_testing::{string_to_stmt, strs_to_idents};
diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index ecf83483c21..7359448a8f2 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -22,7 +22,6 @@ use core::char;
 use core::cmp::Equiv;
 use core::local_data;
 use core::str;
-use core::hashmap::HashSet;
 use core::rand;
 use core::rand::RngUtil;
 use core::to_bytes;