diff --git a/rust/build.sh b/rust/build.sh
index 0c04271..998d71e 100755
--- a/rust/build.sh
+++ b/rust/build.sh
@@ -1,23 +1,35 @@
 #!/bin/sh
 set -eu
 
-export MAKEFLAGS="-j$(nproc)"
+export MAKEFLAGS="-j${NPROC:-$(nproc)}"
 export CFLAGS='-w'
 export CXXFLAGS="$CFLAGS"
 
+version_mrustc=0.9
 version_mrustc_rust=1.29.0
-versions_llvm='7.1.0'
-versions_rustc='1.30.1 1.31.1 1.32.0 1.33.0 1.34.2 1.35.0 1.36.0 1.37.0 1.38.0 1.39.0 1.40.0 1.41.1'
+versions_llvm='7.1.0 10.0.1'
+versions_rustc='1.30.1 1.31.1 1.32.0 1.33.0 1.34.2 1.35.0 1.36.0 1.37.0 1.38.0 1.39.0 1.40.0 1.41.1 1.42.0 1.43.1 1.44.1 1.45.2 1.46.0 1.47.0'
 
 [ ! -d build/install-rustc-$version_mrustc_rust ] && ./build_mrustc.sh
+# Save a ton of space by deleting the source
+rm -rf build/mrustc-$version_mrustc
 
 for version in $versions_llvm; do
     [ ! -d build/install-llvm-$version ] && ./build_llvm.sh $version
+    # Save a ton of space by deleting the source
+    rm -rf build/llvm-$version.src
 done
 
 last_version=$version_mrustc_rust
 for version in $versions_rustc; do
-    version_llvm=7.1.0
+    case "$version" in
+    1.3[0-9].*|1.4[0-3].*)
+        version_llvm=7.1.0 ;;
+    1.4[4-7].*|*)
+        version_llvm=10.0.1 ;;
+    esac
     [ ! -e build/install-rustc-$version/bin/cargo ] && ./build_rust.sh $last_version $version $version_llvm
+    # Save a ton of space by deleting the source
+    rm -rf build/rustc-$version-src
     last_version=$version
 done
diff --git a/rust/build_mrustc.sh b/rust/build_mrustc.sh
index c93e861..467832f 100755
--- a/rust/build_mrustc.sh
+++ b/rust/build_mrustc.sh
@@ -26,7 +26,6 @@ sed -i -e 's/CMAKE_BUILD_TYPE=RelWithDebInfo/CMAKE_BUILD_TYPE=Release/' \
     minicargo.mk
 sed -i -e 's/ -g\>//' Makefile tools/common/Makefile tools/minicargo/Makefile
 sed -i -e '/args.push_back("-g");/d' tools/minicargo/build.cpp
-#cat "$dir_patches/rustc-1.19.0-new-openssl.patch" >> rustc-$version_mrustc_rust-src.patch
 
 cp "$dir_download/rustc-$version_mrustc_rust-src.tar.xz" .
 make RUSTC_VERSION=$version_mrustc_rust RUSTC_SRC_TARBALL="rustc-$version_mrustc_rust-src.tar.xz" RUSTCSRC
@@ -40,6 +39,3 @@ make
 make -f minicargo.mk rustc-$version_mrustc_rust-src/build/bin/llvm-config
 make -j1 -f minicargo.mk output/rustc output/cargo
 make -j1 PREFIX="$dir_install/" -C run_rustc
-
-#mkdir -p "$dir_install"
-#cp -aT run_rustc/output/prefix "$dir_install"
diff --git a/rust/build_rust.sh b/rust/build_rust.sh
index b65788b..e50f930 100755
--- a/rust/build_rust.sh
+++ b/rust/build_rust.sh
@@ -9,9 +9,6 @@ dir_download="$PWD/download"
 mkdir -p build; cd build
 dir_install="$PWD/install-rustc-$version_rustc"
 
-#export LD_LIBRARY_PATH="$dir_bootstrap/lib/rustlib/x86_64-unknown-linux-gnu/lib:${LD_LIBRARY_PATH:-}"
-# TODO: Test this for all versions
-
 # Prepare source
 tar xf "$dir_download/rustc-$version_rustc-src.tar.xz"
 cd "rustc-$version_rustc-src"
@@ -24,6 +21,13 @@ cd "rustc-$version_rustc-src"
     --llvm-root="$PWD/../install-llvm-$version_llvm" \
     --enable-vendor
 
+case "$version_rustc"
+1.3[0-9].*|1.4[0-6].*)
+    paths='src/libstd src/librustc cargo' ;;
+1.47.*|*)
+    paths='library/std src/librustc cargo' ;;
+esac
+
 # Build and install
 mkdir -p "$dir_install"
-./x.py install --stage 2 src/libstd src/librustc cargo
+./x.py install $MAKEFLAGS --stage 2 $paths
diff --git a/rust/download.sh b/rust/download.sh
index 262ebca..bd6b56a 100755
--- a/rust/download.sh
+++ b/rust/download.sh
@@ -3,8 +3,8 @@ set -eu
 
 version_mrustc=0.9  # https://github.com/thepowersgang/mrustc/releases/
 version_mrustc_rust=1.29.0  # Depends on mrustc
-versions_llvm='7.1.0' # https://github.com/llvm/llvm-project/releases
-versions_rustc='1.30.1 1.31.1 1.32.0 1.33.0 1.34.2 1.35.0 1.36.0 1.37.0 1.38.0 1.39.0 1.40.0 1.41.1' # https://github.com/rust-lang/rust/blob/master/RELEASES.md
+versions_llvm='7.1.0 10.0.1'  # https://github.com/llvm/llvm-project/releases
+versions_rustc='1.30.1 1.31.1 1.32.0 1.33.0 1.34.2 1.35.0 1.36.0 1.37.0 1.38.0 1.39.0 1.40.0 1.41.1 1.42.0 1.43.1 1.44.1 1.45.2 1.46.0 1.47.0'  # https://github.com/rust-lang/rust/blob/master/RELEASES.md
 
 mkdir -p download
 cd download
diff --git a/rust/download.sha256 b/rust/download.sha256
index 8a2c5a3..9228a60 100644
--- a/rust/download.sha256
+++ b/rust/download.sha256
@@ -1,3 +1,4 @@
+c5d8e30b57cbded7128d78e5e8dad811bff97a8d471896812f57fa99ee82cdf3  llvm-10.0.1.src.tar.xz
 1bcc9b285074ded87b88faaedddb88e6b5d6c331dfcfb57d7f3393dd622b3764  llvm-7.1.0.src.tar.xz
 381ded90498a04a667ab67a33c1bf7ff1269026bd45a6bde9bac8bf694929de6  mrustc-0.9.tar.gz
 3943da98fb478a336ede7404e42ff76ef6ba4fc2b82012cfccd6b9fc4bd2c191  rustc-1.29.0-src.tar.xz
@@ -13,3 +14,9 @@ f51645b9f787af4a5d94db17f6af39db0c55980ed24fe366cad55b57900f8f2d  rustc-1.36.0-s
 4b0dbb356070687a606034f71dc032b783bbf8b5d3f9fff39f2c1fbc4f171c29  rustc-1.39.0-src.tar.xz
 6e2aa3a91697f4b225c6b394cbae6b97666f061dba491f666a5281698fe2aace  rustc-1.40.0-src.tar.xz
 ebac9861b43c7207af36e24402dfdc5463a4df4bdb015ccb2b165251c0fdcf7c  rustc-1.41.1-src.tar.xz
+aa5b4c0f2bac33cc26a11523fce9b0f120d2eff510ed148ae7c586501481ed04  rustc-1.42.0-src.tar.xz
+eb0a103c67c4565403d9e6f84a1c708982a5e9e5b3c0d831e4d6f6451795d106  rustc-1.43.1-src.tar.xz
+e0386295dd5f2c7842835a509e4c57989eec6c29f989a1c85478b0e06f9d38ea  rustc-1.44.1-src.tar.xz
+f8412adac2f5d974b2f06c5bd4be7361084d18a678d098bf05de5ccfa57b74a9  rustc-1.45.2-src.tar.xz
+865dae1290a205f16ded8818c6a0254cc32862985fc250a602a70285b7d92b82  rustc-1.46.0-src.tar.xz
+ec2c81d2d34890486094a6407589be96161e4e301c238332d32c6dbae4f38ea2  rustc-1.47.0-src.tar.xz
diff --git a/rust/llvm_versions.txt b/rust/llvm_versions.txt
index 8248bdb..4e0de4f 100644
--- a/rust/llvm_versions.txt
+++ b/rust/llvm_versions.txt
@@ -11,3 +11,6 @@ Needed versions:
 1.39: >=6
 1.40: >=6
 1.41: >=7
+1.42: >=7
+1.43: >=7
+1.44: >=8 <=10