Update 'base64', 'crossbeam', 'rand' dependencies.

core/lib/Cargo.toml

@@ -29,7 +29,7 @@ num_cpus = "1.0"
 state = "0.4.1"
 time = "0.1"
 memchr = "2" # TODO: Use pear instead.
-base64 = "0.9"
+base64 = "0.10"
 pear = "0.1"
 isatty = "0.1"
 

examples/managed_queue/Cargo.toml

@@ -5,5 +5,5 @@ workspace = "../.."
 publish = false
 
 [dependencies]
-crossbeam = "0.4"
+crossbeam = "0.5"
 rocket = { path = "../../core/lib" }

examples/pastebin/Cargo.toml

@@ -6,4 +6,4 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-rand = "0.5"
+rand = "0.6"

examples/todo/Cargo.toml

@@ -15,7 +15,7 @@ log = "0.4"
 
 [dev-dependencies]
 parking_lot = { version = "0.6", features = ["nightly"] }
-rand = "0.5"
+rand = "0.6"
 
 [dependencies.rocket_contrib]
 path = "../../contrib/lib"