diff --git a/.abf.yml b/.abf.yml
index 176bccd..4322b16 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,5 +1,5 @@
 sources:
-  rust-1.44.0-aarch64-unknown-linux-gnu.tar.xz: 99735e094f28ae168907c902385f6df09c9545ac
-  rust-1.44.0-i686-unknown-linux-gnu.tar.xz: 96287d119e8008e13c09e421490a90cd8ed994ab
-  rust-1.44.0-x86_64-unknown-linux-gnu.tar.xz: 5bb798e722c7758454def598daec56362be0525c
-  rustc-1.45.2-src.tar.xz: ef2e4d6a728918cc78dd535a3d6d842fa485e8c7
+  rust-1.45.2-aarch64-unknown-linux-gnu.tar.xz: 482602a622df75ea83e17a2c60986a7635055e5f
+  rust-1.45.2-i686-unknown-linux-gnu.tar.xz: 88aa07ce9a2dd265f18a6179fd78493a7cff043d
+  rust-1.45.2-x86_64-unknown-linux-gnu.tar.xz: 654f5ddbda9725c43d05079d69461448f940165c
+  rustc-1.46.0-src.tar.xz: 7fe631f9d8eb27a1443db17431b8922ca97cffe5
diff --git a/0001-Fix-jobserver_exists-test-on-single-cpu-systems.patch b/0001-Fix-jobserver_exists-test-on-single-cpu-systems.patch
new file mode 100644
index 0000000..1650679
--- /dev/null
+++ b/0001-Fix-jobserver_exists-test-on-single-cpu-systems.patch
@@ -0,0 +1,29 @@
+From 02fc16aece46abcd23d2ade2d969497f07fe26ab Mon Sep 17 00:00:00 2001
+From: Alex Crichton <alex@alexcrichton.com>
+Date: Fri, 7 Aug 2020 12:50:25 -0700
+Subject: [PATCH] Fix jobserver_exists test on single-cpu systems
+
+Closes #8595
+---
+ tests/testsuite/jobserver.rs | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/tests/testsuite/jobserver.rs b/tests/testsuite/jobserver.rs
+index 9e91c956cd75..16518ee2c614 100644
+--- a/tests/testsuite/jobserver.rs
++++ b/tests/testsuite/jobserver.rs
+@@ -51,7 +51,10 @@ fn jobserver_exists() {
+         .file("src/lib.rs", "")
+         .build();
+ 
+-    p.cargo("build").run();
++    // Explicitly use `-j2` to ensure that there's eventually going to be a
++    // token to read from `valdiate` above, since running the build script
++    // itself consumes a token.
++    p.cargo("build -j2").run();
+ }
+ 
+ #[cargo_test]
+-- 
+2.26.2
+
diff --git a/rust.spec b/rust.spec
index 7043059..d3be6c8 100644
--- a/rust.spec
+++ b/rust.spec
@@ -25,9 +25,9 @@
 # e.g. 1.10.0 wants rustc: 1.9.0-2016-05-24
 # or nightly wants some beta-YYYY-MM-DD
 # Note that cargo matches the program version here, not its crate version.
-%define bootstrap_rust 1.44.0
-%define bootstrap_cargo 1.44.0
-%define bootstrap_date 2020-06-04
+%define bootstrap_rust 1.45.2
+%define bootstrap_cargo 1.45.2
+%define bootstrap_date 2020-08-03
 
 %bcond_without bootstrap
 
@@ -65,7 +65,7 @@
 
 Summary:	The Rust Programming Language
 Name:		rust
-Version:	1.45.2
+Version:	1.46.0
 Release:	1
 License:	(ASL 2.0 or MIT) and (BSD and MIT)
 Group:		Development/Rust
@@ -77,6 +77,8 @@ Source1:	https://static.rust-lang.org/dist/rust-%{bootstrap_rust}-x86_64-unknown
 Source2:	https://static.rust-lang.org/dist/rust-%{bootstrap_rust}-i686-unknown-linux-gnu.tar.xz
 Source3:	https://static.rust-lang.org/dist/rust-%{bootstrap_rust}-aarch64-unknown-linux-gnu.tar.xz
 Source10:	rust.rpmlintrc
+# https://github.com/rust-lang/cargo/pull/8598
+Patch1:		0001-Fix-jobserver_exists-test-on-single-cpu-systems.patch
 BuildRequires:	ncurses-devel
 BuildRequires:	curl
 BuildRequires:	pkgconfig(libcurl)
@@ -90,7 +92,7 @@ BuildRequires:	cmake >= 2.8.11
 %if %{with clang}
 BuildRequires:	clang
 %endif
-BuildRequires:	llvm-devel >= 6.0
+BuildRequires:	llvm-devel >= 9.0
 %if %{with llvm_static}
 BuildRequires:	pkgconfig(libffi)
 %endif
@@ -159,9 +161,9 @@ for %{name}-gdb and %{name}-lldb.
 %doc README.md COPYRIGHT LICENSE-APACHE LICENSE-MIT
 %dir %{rustlibdir}
 %dir %{rustlibdir}/etc
-%{rustlibdir}/etc/debugger_*.py*
+%{rustlibdir}/etc/rust_*.py*
 %if %{mdvver} >= 201910
-%{rustlibdir}/etc/__pycache__/debugger_*.py*
+%{rustlibdir}/etc/__pycache__/rust_*.py*
 %endif
 
 #-------------------------------------------------------------------------
@@ -358,6 +360,8 @@ test -f '%{local_rust_root}/bin/rustc'
 
 %setup -qn rustc-%{version}-src
 
+patch1 -p1 -d src/tools/cargo
+
 # python3
 sed -i.try-py3 -e '/try python2.7/i try python3 "$@"' ./configure