Reason: https://gist.github.com/ab75b3796a9383423deecc0828494ac5
--- rustc-1.36.0-src/src/librustc_target/spec/linux_musl_base.rs
+++ rustc-1.36.0-src/src/librustc_target/spec/linux_musl_base.rs
@@ -10,7 +10,7 @@ pub fn opts() -> TargetOptions {
     base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-Wl,--eh-frame-hdr".to_string());
 
     // These targets statically link libc by default
-    base.crt_static_default = true;
+    base.crt_static_default = false;
     // These targets allow the user to choose between static and dynamic linking.
     base.crt_static_respected = true;