diff --git a/Cargo.lock b/Cargo.lock
index cc36dd82f97..f78db30b286 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3196,6 +3196,18 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5c9f15eec8235d7cb775ee6f81891db79b98fd54ba1ad8fae565b88ef1ae4e2"
 
+[[package]]
+name = "rustc-std-workspace-alloc"
+version = "1.0.1"
+
+[[package]]
+name = "rustc-std-workspace-core"
+version = "1.0.1"
+
+[[package]]
+name = "rustc-std-workspace-std"
+version = "1.0.1"
+
 [[package]]
 name = "rustc_abi"
 version = "0.0.0"
diff --git a/Cargo.toml b/Cargo.toml
index d4b84250fc4..e1d667bf015 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,9 @@ resolver = "2"
 members = [
   "compiler/rustc",
   "src/etc/test-float-parse",
+  "src/rustc-std-workspace/rustc-std-workspace-core",
+  "src/rustc-std-workspace/rustc-std-workspace-alloc",
+  "src/rustc-std-workspace/rustc-std-workspace-std",
   "src/rustdoc-json-types",
   "src/tools/build_helper",
   "src/tools/cargotest",
diff --git a/library/rustc-std-workspace-core/README.md b/library/rustc-std-workspace-core/README.md
index 40e0b62afab..55a36e74106 100644
--- a/library/rustc-std-workspace-core/README.md
+++ b/library/rustc-std-workspace-core/README.md
@@ -27,3 +27,6 @@ it'll look like
 
 when Cargo invokes the compiler, satisfying the implicit `extern crate core`
 directive injected by the compiler.
+
+The sources for the crates.io version can be found in
+[`src/rustc-std-workspace`](../../src/rustc-std-workspace).
diff --git a/src/rustc-std-workspace/README.md b/src/rustc-std-workspace/README.md
new file mode 100644
index 00000000000..a8e925f243d
--- /dev/null
+++ b/src/rustc-std-workspace/README.md
@@ -0,0 +1,4 @@
+See [`library/rustc-std-workspace-core/README.md`](../../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 00000000000..1a8ebdcfeae
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-alloc/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "rustc-std-workspace-alloc"
+version = "1.0.1"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2021"
+license = 'MIT/Apache-2.0'
+description = """
+crate for integration of crates.io crates into rust-lang/rust standard library workspace
+"""
+
+repository = "https://github.com/rust-lang/rust/tree/master/src/rustc-std-workspace"
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 00000000000..938b8bb29b6
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-alloc/src/lib.rs
@@ -0,0 +1,3 @@
+#![no_std]
+extern crate alloc as the_alloc;
+pub use the_alloc::*;
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 00000000000..116cf3fb6bc
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-core/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "rustc-std-workspace-core"
+version = "1.0.1"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2021"
+license = "MIT/Apache-2.0"
+description = """
+crate for integration of crates.io crates into rust-lang/rust standard library workspace
+"""
+
+repository = "https://github.com/rust-lang/rust/tree/master/src/rustc-std-workspace"
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 00000000000..38b1615a024
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-core/src/lib.rs
@@ -0,0 +1,3 @@
+#![no_std]
+extern crate core as the_core;
+pub use the_core::*;
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 00000000000..fcd1ca3deaf
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-std/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "rustc-std-workspace-std"
+version = "1.0.1"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2021"
+license = "MIT/Apache-2.0"
+description = """
+crate for integration of crates.io crates into rust-lang/rust standard library workspace
+"""
+
+repository = "https://github.com/rust-lang/rust/tree/master/src/rustc-std-workspace"
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 00000000000..f40d09cafbb
--- /dev/null
+++ b/src/rustc-std-workspace/rustc-std-workspace-std/src/lib.rs
@@ -0,0 +1 @@
+pub use std::*;