diff --git a/compiler/rustc_ast_lowering/Cargo.toml b/compiler/rustc_ast_lowering/Cargo.toml
index 5554fcd29bdc2..ce1c8d4997d74 100644
--- a/compiler/rustc_ast_lowering/Cargo.toml
+++ b/compiler/rustc_ast_lowering/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
+doctest = false
 
 [dependencies]
 rustc_arena = { path = "../rustc_arena" }
diff --git a/compiler/rustc_builtin_macros/Cargo.toml b/compiler/rustc_builtin_macros/Cargo.toml
index 5ac45c321c412..6469d0d7b88a6 100644
--- a/compiler/rustc_builtin_macros/Cargo.toml
+++ b/compiler/rustc_builtin_macros/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
+doctest = false
 
 [dependencies]
 rustc_ast = { path = "../rustc_ast" }
diff --git a/compiler/rustc_expand/Cargo.toml b/compiler/rustc_expand/Cargo.toml
index f665f21d48640..4ee7b6c42bbf5 100644
--- a/compiler/rustc_expand/Cargo.toml
+++ b/compiler/rustc_expand/Cargo.toml
@@ -5,6 +5,7 @@ edition = "2021"
 build = false
 
 [lib]
+doctest = false
 
 [dependencies]
 rustc_serialize = { path = "../rustc_serialize" }
diff --git a/compiler/rustc_infer/Cargo.toml b/compiler/rustc_infer/Cargo.toml
index fb53d360c4ea6..aced787d67116 100644
--- a/compiler/rustc_infer/Cargo.toml
+++ b/compiler/rustc_infer/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
+doctest = false
 
 [dependencies]
 tracing = "0.1"
diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml
index c0e16e7dd822f..cca17a4eccd3a 100644
--- a/compiler/rustc_middle/Cargo.toml
+++ b/compiler/rustc_middle/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
+doctest = false
 
 [dependencies]
 bitflags = "1.2.1"
diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml
index 319c749edc039..e7f12caaf33e5 100644
--- a/compiler/rustc_query_impl/Cargo.toml
+++ b/compiler/rustc_query_impl/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
+doctest = false
 
 [dependencies]
 measureme = "10.0.0"