diff --git a/config.toml b/config.toml
new file mode 100644
index 0000000000000000000000000000000000000000..23801fa710af16048260f9b4954ea3fe70a7ab03
--- /dev/null
+++ b/config.toml
@@ -0,0 +1,4 @@
+# ARM x64 specific, otherwise crash (because of rustc bug)
+# see: https://github.com/rust-lang/cargo/issues/6489
+[target.'cfg(all(target_arch = "aarch64"))']
+codegen-units=1