fix up .cargo/config
[build]
-rustflags = ["-C", "target-feature=+aes,+ssse3,+avx2",
- "-C", "target-cpu=native",
- "-C", "opt-level=3"]
-rustdocflags = ["-C", "target-feature=+aes,+ssse3"]
+rustflags = ["-C", "target-feature=+aes,+sse4.1,+avx2",
+ "-C", "target-cpu=native"]
+rustdocflags = ["-C", "target-feature=+aes,+sse4.1"]
