release 0.6.4 (#274)

and remove unused deps

Author: quininer

Cargo.lock

@@ -8,10 +8,7 @@ edition = "2018"
 
 [dependencies]
 io-uring = { path = ".." }
-iou = "0.3"
-uring-sys = "0.7"
 criterion = "0.4"
-iai = "0.1"
 tempfile = "3"
 
 [[bench]]
@@ -23,8 +20,3 @@ harness = false
 name = "iovec"
 path = "src/iovec.rs"
 harness = false
-
-[[bench]]
-name = "iai_new_nop"
-path = "src/iai_new_nop.rs"
-harness = false