diff --git a/.gitignore b/.gitignore
index f02949c..506f1e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /bytecheck-0.6.5.crate
 /bytecheck-0.6.6.crate
 /bytecheck-0.6.7.crate
+/bytecheck-0.6.8.crate
diff --git a/rust-bytecheck.spec b/rust-bytecheck.spec
index 801f71a..71da024 100644
--- a/rust-bytecheck.spec
+++ b/rust-bytecheck.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 20
+# Generated by rust2rpm 21
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate bytecheck
 
 Name:           rust-%{crate}
-Version:        0.6.7
+Version:        0.6.8
 Release:        %autorelease
 Summary:        Derive macro for bytecheck
 
@@ -16,7 +16,7 @@ Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
 
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 Derive macro for bytecheck.}
@@ -29,13 +29,14 @@ BuildArch:      noarch
 
 %description    devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "%{crate}" crate.
 
 %files          devel
-%license LICENSE
-%doc README.md crates-io.md
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE
+%doc %{crate_instdir}/README.md
+%doc %{crate_instdir}/crates-io.md
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -43,11 +44,11 @@ BuildArch:      noarch
 
 %description -n %{name}+default-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "default" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "default" feature of the "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+simdutf8-devel
 Summary:        %{summary}
@@ -55,11 +56,11 @@ BuildArch:      noarch
 
 %description -n %{name}+simdutf8-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "simdutf8" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "simdutf8" feature of the "%{crate}" crate.
 
 %files       -n %{name}+simdutf8-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+simdutf8_std-devel
 Summary:        %{summary}
@@ -67,11 +68,11 @@ BuildArch:      noarch
 
 %description -n %{name}+simdutf8_std-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "simdutf8_std" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "simdutf8_std" feature of the "%{crate}" crate.
 
 %files       -n %{name}+simdutf8_std-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+std-devel
 Summary:        %{summary}
@@ -79,11 +80,11 @@ BuildArch:      noarch
 
 %description -n %{name}+std-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "std" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "std" feature of the "%{crate}" crate.
 
 %files       -n %{name}+std-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+uuid-devel
 Summary:        %{summary}
@@ -91,11 +92,11 @@ BuildArch:      noarch
 
 %description -n %{name}+uuid-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "uuid" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "uuid" feature of the "%{crate}" crate.
 
 %files       -n %{name}+uuid-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+verbose-devel
 Summary:        %{summary}
@@ -103,11 +104,11 @@ BuildArch:      noarch
 
 %description -n %{name}+verbose-devel %{_description}
 
-This package contains library source intended for building other packages which 
-use "verbose" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "verbose" feature of the "%{crate}" crate.
 
 %files       -n %{name}+verbose-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
diff --git a/sources b/sources
index 8b94ccc..91d6950 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (bytecheck-0.6.7.crate) = 553bf8c6db338131929ebe2478ee6eeafa98ea90533b1e4afcb43be60690ca17bf4ef4c4a5dfb18c316f8f674d3d0ae04efc5811095df9844ead06d0846b3aa4
+SHA512 (bytecheck-0.6.8.crate) = aad27600c361bb54c93c2e11e2ef686842f5938bd3b33160fde1e24a494887ffb71920d04c3abd317526cf1e9b596410ff9a821c8af8b34f2f6679cf97f049be