diff --git a/src/rustc-std-workspace/README.md b/src/rustc-std-workspace/README.md
new file mode 100644
index 000000000000..996fe0d3ba12
--- /dev/null
+++ b/src/rustc-std-workspace/README.md
@@ -0,0 +1,4 @@
+See `library/rustc-std-workspace-core/README.md` for context.
+
+These are the crates.io versions of these crates, as opposed to the versions
+in `library` which are the ones used inside the rustc workspace.
diff --git a/src/rustc-std-workspace/rustc-std-workspace-alloc/Cargo.toml b/src/rustc-std-workspace/rustc-std-workspace-alloc/Cargo.toml
new file mode 100644
index 000000000000..777d57d2011a
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-alloc/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "rustc-std-workspace-alloc"
+version = "1.0.0"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2018"
+license = 'MIT/Apache-2.0'
+description = 'workspace hack'
+
+[dependencies]
diff --git a/src/rustc-std-workspace/rustc-std-workspace-alloc/src/lib.rs b/src/rustc-std-workspace/rustc-std-workspace-alloc/src/lib.rs
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/src/rustc-std-workspace/rustc-std-workspace-core/Cargo.toml b/src/rustc-std-workspace/rustc-std-workspace-core/Cargo.toml
new file mode 100644
index 000000000000..9f99308bf68d
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-core/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "rustc-std-workspace-core"
+version = "1.0.0"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+license = "MIT/Apache-2.0"
+description = """
+Explicitly empty crate for rust-lang/rust integration
+"""
+
+[dependencies]
diff --git a/src/rustc-std-workspace/rustc-std-workspace-core/src/lib.rs b/src/rustc-std-workspace/rustc-std-workspace-core/src/lib.rs
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/src/rustc-std-workspace/rustc-std-workspace-std/Cargo.toml b/src/rustc-std-workspace/rustc-std-workspace-std/Cargo.toml
new file mode 100644
index 000000000000..d5bf3133e2c1
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-std/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "rustc-std-workspace-std"
+version = "1.0.1"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+license = "MIT/Apache-2.0"
+description = "Workaround for rustbuild"
+
+[lib]
+name = "std"
+
diff --git a/src/rustc-std-workspace/rustc-std-workspace-std/src/lib.rs b/src/rustc-std-workspace/rustc-std-workspace-std/src/lib.rs
new file mode 100644
index 000000000000..f40d09cafbb4
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-std/src/lib.rs
@@ -0,0 +1 @@
+pub use std::*;