drop unspported nightly-only feature

.rust2rpm.conf

@@ -1,4 +1,5 @@
 [DEFAULT]
 unwanted-features =
+  nightly
   stdweb
   wasm-bindgen

rust-parking_lot.spec

@@ -1,4 +1,4 @@
-# Generated by rust2rpm 16
+# Generated by rust2rpm 18
 %bcond_without check
 %global debug_package %{nil}
 
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.11.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Compact and efficient implementations of standard synchronization primitives
 
 # Upstream license specification: Apache-2.0/MIT
@@ -66,18 +66,6 @@ which use "deadlock_detection" feature of "%{crate}" crate.
 %files       -n %{name}+deadlock_detection-devel
 %ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
-%package     -n %{name}+nightly-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+nightly-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "nightly" feature of "%{crate}" crate.
-
-%files       -n %{name}+nightly-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
-
 %package     -n %{name}+owning_ref-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -133,6 +121,9 @@ which use "serde" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Mon Sep 27 2021 Fabio Valentini <decathorpe@gmail.com> - 0.11.1-4
+- Drop unspported nightly-only feature.
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.11.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild