Expunge error-chain (feat. tomaka) (#2662)

* Remove error_chain

* Expunge error-chain from rpc and service.

* Expunge from transaction pool.

* Expunge from node/cli

* Expunge from keystore.

* Remove some boilerplate.

* Fix remaining stuff.

* Improve on deprecation message.

* Fix issues.

* Fix trnsaction pool tests.

* Fix the rest.

* Fix borked merge.

* Update lock

substrate/node/src/main.rs

@@ -43,9 +43,7 @@ impl cli::IntoExit for Exit {
 	}
 }
 
-error_chain::quick_main!(run);
-
-fn run() -> cli::error::Result<()> {
+fn main() {
 	let version = VersionInfo {
 		name: "Substrate Node",
 		commit: env!("VERGEN_SHA_SHORT"),
@@ -55,5 +53,9 @@ fn run() -> cli::error::Result<()> {
 		description: "Generic substrate node",
 		support_url: "https://github.com/paritytech/substrate/issues/new",
 	};
-	cli::run(::std::env::args(), Exit, version)
+
+	if let Err(e) = cli::run(::std::env::args(), Exit, version) {
+		eprintln!("Error starting the node: {}\n\n{:?}", e, e);
+		std::process::exit(1)
+	}
 }