diff --git a/crates/crates-io/lib.rs b/crates/crates-io/lib.rs
index e0197568a6cb..3d7608a2900b 100644
--- a/crates/crates-io/lib.rs
+++ b/crates/crates-io/lib.rs
@@ -57,6 +57,7 @@ pub struct NewCrate {
     pub repository: Option<String>,
     pub badges: BTreeMap<String, BTreeMap<String, String>>,
     pub links: Option<String>,
+    pub rust_version: Option<String>,
 }
 
 #[derive(Serialize, Deserialize)]
diff --git a/src/cargo/core/manifest.rs b/src/cargo/core/manifest.rs
index 182882dad75d..9f77b1301fba 100644
--- a/src/cargo/core/manifest.rs
+++ b/src/cargo/core/manifest.rs
@@ -110,6 +110,7 @@ pub struct ManifestMetadata {
     pub documentation: Option<String>, // URL
     pub badges: BTreeMap<String, BTreeMap<String, String>>,
     pub links: Option<String>,
+    pub rust_version: Option<String>,
 }
 
 #[derive(Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
diff --git a/src/cargo/ops/registry.rs b/src/cargo/ops/registry.rs
index e04f7ba2cffd..cc15d47f56a6 100644
--- a/src/cargo/ops/registry.rs
+++ b/src/cargo/ops/registry.rs
@@ -345,6 +345,7 @@ fn transmit(
         ref categories,
         ref badges,
         ref links,
+        ref rust_version,
     } = *manifest.metadata();
     let readme_content = readme
         .as_ref()
@@ -398,6 +399,7 @@ fn transmit(
                 license_file: license_file.clone(),
                 badges: badges.clone(),
                 links: links.clone(),
+                rust_version: rust_version.clone(),
             },
             tarball,
         )
diff --git a/src/cargo/util/toml/mod.rs b/src/cargo/util/toml/mod.rs
index 7b8c916cc658..12698b703100 100644
--- a/src/cargo/util/toml/mod.rs
+++ b/src/cargo/util/toml/mod.rs
@@ -2433,6 +2433,11 @@ impl TomlManifest {
                 .transpose()?
                 .unwrap_or_default(),
             links: package.links.clone(),
+            rust_version: package
+                .rust_version
+                .clone()
+                .map(|mw| mw.resolve("rust-version", || inherit()?.rust_version()))
+                .transpose()?,
         };
         package.description = metadata
             .description