wasi-cap-std-async: exactly like wasi-cap-std-sync but with a different WasiSched

Cargo.lock

@@ -2808,6 +2808,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83f0c8e7c0addab50b663055baf787d0af7f413a46e6e7fb9559a4e4db7137a5"
+dependencies = [
+ "autocfg 1.0.1",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.8"
@@ -3041,6 +3051,16 @@ version = "0.10.2+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
+[[package]]
+name = "wasi-cap-std-async"
+version = "0.26.0"
+dependencies = [
+ "tokio",
+ "wasi-cap-std-sync",
+ "wasi-common",
+ "wiggle",
+]
+
 [[package]]
 name = "wasi-cap-std-sync"
 version = "0.26.0"
@@ -3059,6 +3079,7 @@ dependencies = [
  "tracing",
  "unsafe-io",
  "wasi-common",
+ "wiggle",
  "winapi",
 ]