structopt: Migrate to clap

According to TeXitoi/structopt#525,
structopt has entered maintenance mode, and clap should be used
for new development.

Migrate to clap so that nightly builds succeed as well.

Signed-off-by: Tomás González <[email protected]>

Author: tgonzalezorlandoarm

Cargo.lock

@@ -31,7 +31,7 @@ picky-asn1-der = { version = "0.4.0", optional = true }
 picky-asn1 = { version = "0.8.0", optional = true }
 tss-esapi = { version = "7.5.0", optional = true }
 bincode = "1.3.1"
-structopt = { version = "0.3.26", default-features = false}
+clap = { version = "3.2.22", features = ["derive", "std"]}
 derivative = "2.2.0"
 hex = { version = "0.4.2", optional = true }
 psa-crypto = { version = "0.12.0", default-features = false, features = ["operations","std"], optional = true }

Cargo.toml

@@ -49,7 +49,7 @@ use std::sync::{
     Arc,
 };
 use std::time::Duration;
-use structopt::StructOpt;
+use clap::StructOpt;
 
 const MAIN_LOOP_DEFAULT_SLEEP: u64 = 10;
 

fuzz/Cargo.lock

@@ -7,7 +7,7 @@
 // See https://github.com/parallaxsecond/parsec/issues/392 for details.
 #![allow(unused_qualifications)]
 
-use structopt::StructOpt;
+use clap::StructOpt;
 
 /// Parsec is the Platform AbstRaction for SECurity, a new open-source initiative to provide a
 /// common API to secure services in a platform-agnostic way.