error_chain! {
errors {
NoCommandSpecified {
description("no command specified")
display("no command specified")
}
NoSubcommandSpecified(module_name: String) {
description("no sub command specified")
display("no sub command for module {} specified", module_name)
}
ModuleFailed(module_name: String) {
description("module failed")
display("executing module {} failed", module_name)
}
}
}