diff --git a/scripts/test_bootstrap.sh b/scripts/test_bootstrap.sh
index db69541b226..15f97c867a1 100755
--- a/scripts/test_bootstrap.sh
+++ b/scripts/test_bootstrap.sh
@@ -14,21 +14,18 @@ git checkout -- .
 git checkout "$(rustc -V | cut -d' ' -f3 | tr -d '(')"
 
 git apply - <<EOF
-diff --git a/.gitmodules b/.gitmodules
-index 984113151de..c1e9d960d56 100644
---- a/.gitmodules
-+++ b/.gitmodules
-@@ -34,10 +34,6 @@
- [submodule "src/doc/edition-guide"]
- 	path = src/doc/edition-guide
- 	url = https://github.com/rust-lang/edition-guide.git
--[submodule "src/llvm-project"]
--	path = src/llvm-project
--	url = https://github.com/rust-lang/llvm-project.git
--	branch = rustc/11.0-2020-10-12
- [submodule "src/doc/embedded-book"]
- 	path = src/doc/embedded-book
- 	url = https://github.com/rust-embedded/book.git
+diff --git a/Cargo.toml b/Cargo.toml
+index 5bd1147cad5..10d68a2ff14 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -111,5 +111,7 @@ rustc-std-workspace-std = { path = 'library/rustc-std-workspace-std' }
+ # source code for this crate.
+ backtrace = { path = "library/backtrace" }
+ 
++compiler_builtins = { path = "../build_sysroot/compiler-builtins" }
++
+ [patch."https://github.com/rust-lang/rust-clippy"]
+ clippy_lints = { path = "src/tools/clippy/clippy_lints" }
 diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
 index 23e689fcae7..5f077b765b6 100644
 --- a/compiler/rustc_data_structures/Cargo.toml
@@ -41,6 +38,19 @@ index 23e689fcae7..5f077b765b6 100644
 
  [target.'cfg(windows)'.dependencies]
  winapi = { version = "0.3", features = ["fileapi", "psapi"] }
+diff --git a/library/alloc/Cargo.toml b/library/alloc/Cargo.toml
+index d95b5b7f17f..00b6f0e3635 100644
+--- a/library/alloc/Cargo.toml
++++ b/library/alloc/Cargo.toml
+@@ -8,7 +8,7 @@ edition = "2018"
+ 
+ [dependencies]
+ core = { path = "../core" }
+-compiler_builtins = { version = "0.1.39", features = ['rustc-dep-of-std'] }
++compiler_builtins = { version = "0.1.39", features = ['rustc-dep-of-std', 'no-asm'] }
+ 
+ [dev-dependencies]
+ rand = "0.7"
 EOF
 
 cat > config.toml <<EOF