diff --git a/0001-Hopefully-fix-rustdoc-build.patch b/0001-Hopefully-fix-rustdoc-build.patch
new file mode 100644
index 0000000..06ca58e
--- /dev/null
+++ b/0001-Hopefully-fix-rustdoc-build.patch
@@ -0,0 +1,38 @@
+From 73369f32621f6a844a80a8513ae3ded901e4a406 Mon Sep 17 00:00:00 2001
+From: Mark Rousskov <mark.simulacrum@gmail.com>
+Date: Tue, 5 Nov 2019 11:16:46 -0500
+Subject: [PATCH] Hopefully fix rustdoc build
+
+It's super unclear why this broke when we switched to beta but not
+previously -- but at least it's hopefully fixed now.
+---
+ src/bootstrap/builder.rs | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
+index 2748903f2d47..2edcef203ad2 100644
+--- a/src/bootstrap/builder.rs
++++ b/src/bootstrap/builder.rs
+@@ -886,7 +886,18 @@ impl<'a> Builder<'a> {
+         // things still build right, please do!
+         match mode {
+             Mode::Std => metadata.push_str("std"),
+-            _ => {},
++            // When we're building rustc tools, they're built with a search path
++            // that contains things built during the rustc build. For example,
++            // bitflags is built during the rustc build, and is a dependency of
++            // rustdoc as well. We're building rustdoc in a different target
++            // directory, though, which means that Cargo will rebuild the
++            // dependency. When we go on to build rustdoc, we'll look for
++            // bitflags, and find two different copies: one built during the
++            // rustc step and one that we just built. This isn't always a
++            // problem, somehow -- not really clear why -- but we know that this
++            // fixes things.
++            Mode::ToolRustc => metadata.push_str("tool-rustc"),
++            _ => {}
+         }
+         cargo.env("__CARGO_DEFAULT_LIB_METADATA", &metadata);
+ 
+-- 
+2.23.0
+
diff --git a/rust-pr66317-bindir-relative.patch b/rust-pr66317-bindir-relative.patch
new file mode 100644
index 0000000..71d3b0c
--- /dev/null
+++ b/rust-pr66317-bindir-relative.patch
@@ -0,0 +1,39 @@
+diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
+index 2748903f2d47..10d02d6db829 100644
+--- a/src/bootstrap/builder.rs
++++ b/src/bootstrap/builder.rs
+@@ -1231,7 +1231,8 @@ impl<'a> Builder<'a> {
+             cargo.arg("--frozen");
+         }
+ 
+-        cargo.env("RUSTC_INSTALL_BINDIR", &self.config.bindir);
++        // Try to use a sysroot-relative bindir, in case it was configured absolutely.
++        cargo.env("RUSTC_INSTALL_BINDIR", self.config.bindir_relative());
+ 
+         self.ci_env.force_coloring_in_ci(&mut cargo);
+ 
+diff --git a/src/bootstrap/config.rs b/src/bootstrap/config.rs
+index d1bdfa0a7676..0c03b95c7b25 100644
+--- a/src/bootstrap/config.rs
++++ b/src/bootstrap/config.rs
+@@ -647,6 +647,20 @@ impl Config {
+         config
+     }
+ 
++    /// Try to find the relative path of `bindir`, otherwise return it in full.
++    pub fn bindir_relative(&self) -> &Path {
++        let bindir = &self.bindir;
++        if bindir.is_absolute() {
++            // Try to make it relative to the prefix.
++            if let Some(prefix) = &self.prefix {
++                if let Ok(stripped) = bindir.strip_prefix(prefix) {
++                    return stripped;
++                }
++            }
++        }
++        bindir
++    }
++
+     /// Try to find the relative path of `libdir`.
+     pub fn libdir_relative(&self) -> Option<&Path> {
+         let libdir = self.libdir.as_ref()?;
diff --git a/rust.spec b/rust.spec
index 6de3a28..5309f63 100644
--- a/rust.spec
+++ b/rust.spec
@@ -49,7 +49,7 @@
 
 Name:           rust
 Version:        1.39.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        The Rust Programming Language
 License:        (ASL 2.0 or MIT) and (BSD and MIT)
 # ^ written as: (rust itself) and (bundled libraries)
@@ -71,6 +71,14 @@ Patch1:         rust-pr57840-llvm7-debuginfo-variants.patch
 # https://github.com/rust-lang/rust/pull/65474
 Patch2:         rust-pr65474-split-rustc-dev.patch
 
+# Fix conflicting libraries of rustc tools
+# https://github.com/rust-lang/rust/commit/73369f32621f6a844a80a8513ae3ded901e4a406
+Patch3:         0001-Hopefully-fix-rustdoc-build.patch
+
+# Fix the bindir used by rustdoc to find rustc
+# https://github.com/rust-lang/rust/pull/66317
+Patch4:         rust-pr66317-bindir-relative.patch
+
 # Get the Rust triple for any arch.
 %{lua: function rust_triple(arch)
   local abi = "gnu"
@@ -402,6 +410,8 @@ test -f '%{local_rust_root}/bin/rustc'
 
 %patch1 -p1 -R
 %patch2 -p1
+%patch3 -p1
+%patch4 -p1
 
 %if "%{python}" == "python3"
 sed -i.try-py3 -e '/try python2.7/i try python3 "$@"' ./configure
@@ -711,6 +721,9 @@ rm -f %{buildroot}%{rustlibdir}/etc/lldb_*.py*
 
 
 %changelog
+* Tue Nov 12 2019 Josh Stone <jistone@redhat.com> - 1.39.0-2
+- Fix a couple build and test issues with rustdoc.
+
 * Thu Nov 07 2019 Josh Stone <jistone@redhat.com> - 1.39.0-1
 - Update to 1.39.0.