Upgrade to proc-macro-error 1.0.0

cuviper · CreepySkeleton · commit b6e561155310 · 2020-04-09T01:37:12.000+03:00
diff --git a/structopt-derive/Cargo.toml b/structopt-derive/Cargo.toml
@@ -18,7 +18,7 @@ syn = { version = "1", features = ["full"] }
 quote = "1"
 proc-macro2 = "1"
 heck = "0.3.0"
-proc-macro-error = "0.4.7"
+proc-macro-error = "1.0.0"
 
 [features]
 paw = []
