feat: add Rust userspace support; fix TLS layout for p_align < 16; kill whole process on sibling-thread faults

programs/rust/Cargo.toml

@@ -0,0 +1,13 @@
+[workspace]
+resolver = "2"
+members = ["montauk-rt", "rusthello"]
+
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+panic = "abort"
+opt-level = "s"
+lto = true
+codegen-units = 1
+debug = false