diff --git a/src/librustdoc/astsrv.rs b/src/librustdoc/astsrv.rs
index a9c1630b6546b..09adc507a9089 100644
--- a/src/librustdoc/astsrv.rs
+++ b/src/librustdoc/astsrv.rs
@@ -23,7 +23,6 @@ use parse;
 use util;
 
 use core::pipes::{stream, Chan, SharedChan, Port};
-use core::oldcomm;
 use core::vec;
 use core::ops::Drop;
 use rustc::back::link;
diff --git a/src/librustdoc/markdown_pass.rs b/src/librustdoc/markdown_pass.rs
index f6d8b1ee9e1a1..fc13af8a22133 100644
--- a/src/librustdoc/markdown_pass.rs
+++ b/src/librustdoc/markdown_pass.rs
@@ -35,16 +35,17 @@ use trim_pass;
 use unindent_pass;
 
 use core::iter;
-use core::oldcomm;
 use core::str;
 use core::vec;
 use std::par;
+use std::cell::Cell;
 use syntax;
 
 pub fn mk_pass(writer_factory: WriterFactory) -> Pass {
+    let writer_factory = Cell(writer_factory);
     let f = fn~(move writer_factory,
                 srv: astsrv::Srv, doc: doc::Doc) -> doc::Doc {
-        run(srv, doc, copy writer_factory)
+        run(srv, doc, writer_factory.take())
     };
 
     Pass {
@@ -155,7 +156,7 @@ fn should_request_new_writer_for_each_page() {
     write_markdown(doc, move writer_factory);
     // We expect two pages to have been written
     for iter::repeat(2) {
-        oldcomm::recv(po);
+        po.recv();
     }
 }
 
@@ -186,7 +187,7 @@ fn should_write_title_for_each_page() {
     let doc = (page_pass::mk_pass(config::DocPerMod).f)(srv, doc);
     write_markdown(doc, move writer_factory);
     for iter::repeat(2) {
-        let (page, markdown) = oldcomm::recv(po);
+        let (page, markdown) = po.recv();
         match page {
           doc::CratePage(_) => {
             assert str::contains(markdown, ~"% Crate core");
@@ -331,7 +332,7 @@ fn should_write_full_path_to_mod() {
     assert str::contains(markdown, ~"# Module `a::b::c`");
 }
 
-fn write_oldcommon(
+fn write_common(
     ctxt: &Ctxt,
     desc: Option<~str>,
     sections: &[doc::Section]
@@ -380,7 +381,7 @@ fn write_mod_contents(
     ctxt: &Ctxt,
     doc: doc::ModDoc
 ) {
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
     if doc.index.is_some() {
         write_index(ctxt, (&doc.index).get());
     }
@@ -483,7 +484,7 @@ fn should_write_index_for_foreign_mods() {
 }
 
 fn write_nmod(ctxt: &Ctxt, doc: doc::NmodDoc) {
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
     if doc.index.is_some() {
         write_index(ctxt, (&doc.index).get());
     }
@@ -534,7 +535,7 @@ fn write_fnlike(
     sections: &[doc::Section]
 ) {
     write_sig(ctxt, sig);
-    write_oldcommon(ctxt, desc, sections);
+    write_common(ctxt, desc, sections);
 }
 
 fn write_sig(ctxt: &Ctxt, sig: Option<~str>) {
@@ -603,7 +604,7 @@ fn write_const(
     doc: doc::ConstDoc
 ) {
     write_sig(ctxt, copy doc.sig);
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
 }
 
 #[test]
@@ -624,7 +625,7 @@ fn write_enum(
     ctxt: &Ctxt,
     doc: doc::EnumDoc
 ) {
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
     write_variants(ctxt, doc.variants);
 }
 
@@ -705,7 +706,7 @@ fn should_write_variant_list_with_signatures() {
 }
 
 fn write_trait(ctxt: &Ctxt, doc: doc::TraitDoc) {
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
     write_methods(ctxt, doc.methods);
 }
 
@@ -753,7 +754,7 @@ fn should_write_trait_method_signature() {
 }
 
 fn write_impl(ctxt: &Ctxt, doc: doc::ImplDoc) {
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
     write_methods(ctxt, doc.methods);
 }
 
@@ -795,7 +796,7 @@ fn write_type(
     doc: doc::TyDoc
 ) {
     write_sig(ctxt, copy doc.sig);
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
 }
 
 #[test]
@@ -822,7 +823,7 @@ fn write_struct(
     doc: doc::StructDoc
 ) {
     write_sig(ctxt, copy doc.sig);
-    write_oldcommon(ctxt, doc.desc(), doc.sections());
+    write_common(ctxt, doc.desc(), doc.sections());
 }
 
 #[test]
@@ -848,7 +849,6 @@ mod test {
     use tystr_pass;
     use unindent_pass;
 
-    use core::oldcomm;
     use core::path::Path;
     use core::str;
 
@@ -900,7 +900,7 @@ mod test {
     ) -> ~str {
         let (writer_factory, po) = markdown_writer::future_writer_factory();
         write_markdown(doc, move writer_factory);
-        return oldcomm::recv(po).second();
+        return po.recv().second();
     }
 
     pub fn write_markdown_str_srv(
@@ -910,7 +910,7 @@ mod test {
         let (writer_factory, po) = markdown_writer::future_writer_factory();
         let pass = mk_pass(move writer_factory);
         (pass.f)(srv, doc);
-        return oldcomm::recv(po).second();
+        return po.recv().second();
     }
 
     #[test]
diff --git a/src/librustdoc/markdown_writer.rs b/src/librustdoc/markdown_writer.rs
index 3b9f07d6920a6..986194d961d65 100644
--- a/src/librustdoc/markdown_writer.rs
+++ b/src/librustdoc/markdown_writer.rs
@@ -19,13 +19,13 @@ use pass::Pass;
 use core::io::ReaderUtil;
 use core::io;
 use core::libc;
-use core::oldcomm;
 use core::os;
 use core::pipes;
 use core::result;
 use core::run;
 use core::str;
 use core::task;
+use core::pipes::*;
 use std::future;
 use syntax;
 
@@ -168,12 +168,8 @@ fn readclose(fd: libc::c_int) -> ~str {
 }
 
 fn generic_writer(process: fn~(markdown: ~str)) -> Writer {
-    let (setup_po, setup_ch) = pipes::stream();
+    let (po, ch) = stream::<WriteInstr>();
     do task::spawn |move process, move setup_ch| {
-        let po: oldcomm::Port<WriteInstr> = oldcomm::Port();
-        let ch = oldcomm::Chan(&po);
-        setup_ch.send(ch);
-
         let mut markdown = ~"";
         let mut keep_going = true;
         while keep_going {
@@ -184,10 +180,8 @@ fn generic_writer(process: fn~(markdown: ~str)) -> Writer {
         }
         process(move markdown);
     };
-    let ch = setup_po.recv();
-
     fn~(instr: WriteInstr) {
-        oldcomm::send(ch, instr);
+        ch.send(instr);
     }
 }
 
@@ -298,16 +292,17 @@ fn write_file(path: &Path, s: ~str) {
 }
 
 pub fn future_writer_factory(
-) -> (WriterFactory, oldcomm::Port<(doc::Page, ~str)>) {
-    let markdown_po = oldcomm::Port();
-    let markdown_ch = oldcomm::Chan(&markdown_po);
+) -> (WriterFactory, Port<(doc::Page, ~str)>) {
+    let (markdown_po, markdown_ch) = stream();
+    let markdown_ch = SharedChan(markdown_ch);
     let writer_factory = fn~(page: doc::Page) -> Writer {
         let (writer_po, writer_ch) = pipes::stream();
+        let markdown_ch = markdown_ch.clone();
         do task::spawn |move writer_ch| {
             let (writer, future) = future_writer();
             writer_ch.send(move writer);
             let s = future.get();
-            oldcomm::send(markdown_ch, (copy page, s));
+            markdown_ch.send((copy page, s));
         }
         writer_po.recv()
     };
diff --git a/src/librustdoc/text_pass.rs b/src/librustdoc/text_pass.rs
index 8d88f5aeae2a1..aec8b56341fd3 100644
--- a/src/librustdoc/text_pass.rs
+++ b/src/librustdoc/text_pass.rs
@@ -73,7 +73,7 @@ fn fold_item(
 }
 
 fn apply_to_sections(
-    +op: NominalOp<Op>,
+    op: NominalOp<Op>,
     sections: ~[doc::Section]
 ) -> ~[doc::Section] {
     par::map(sections, |section, copy op| doc::Section {
diff --git a/src/librustdoc/util.rs b/src/librustdoc/util.rs
index 23741ed5acfa9..aa15c104540f6 100644
--- a/src/librustdoc/util.rs
+++ b/src/librustdoc/util.rs
@@ -10,7 +10,6 @@
 
 use core::prelude::*;
 
-use core::oldcomm;
 use core::task;
 
 // Just a named container for our op, so it can have impls
@@ -21,27 +20,3 @@ pub struct NominalOp<T> {
 impl<T: Copy> NominalOp<T>: Clone {
     fn clone(&self) -> NominalOp<T> { copy *self }
 }
-
-pub fn spawn_listener<A: Owned>(
-    f: fn~(oldcomm::Port<A>)) -> oldcomm::Chan<A> {
-    let setup_po = oldcomm::Port();
-    let setup_ch = oldcomm::Chan(&setup_po);
-    do task::spawn |move f| {
-        let po = oldcomm::Port();
-        let ch = oldcomm::Chan(&po);
-        oldcomm::send(setup_ch, ch);
-        f(move po);
-    }
-    oldcomm::recv(setup_po)
-}
-
-pub fn spawn_conversation<A: Owned, B: Owned>
-    (f: fn~(oldcomm::Port<A>, oldcomm::Chan<B>))
-    -> (oldcomm::Port<B>, oldcomm::Chan<A>) {
-    let from_child = oldcomm::Port();
-    let to_parent = oldcomm::Chan(&from_child);
-    let to_child = do spawn_listener |move f, from_parent| {
-        f(from_parent, to_parent)
-    };
-    (from_child, to_child)
-}