Protocol version, async pump, start some testing

Cargo.lock

@@ -23,6 +23,12 @@ version = "1.0.65"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "98161a4e3e2184da77bb14f02184cdd111e83bbbcc9979dfee3c44b9a85f5602"
 
+[[package]]
+name = "assert_matches"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -166,9 +172,10 @@ checksum = "4e5aa3de05362c3fb88de6531e6296e85cde7739cccad4b9dfeeb7f6ebce56bf"
 
 [[package]]
 name = "fwd"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "anyhow",
+ "assert_matches",
  "bytes",
  "crossterm",
  "home",