Use opensuse/leap to build OpenSUSE package.

Always use rustup to install the Rust compiler.

.github/workflows/release.yml

@@ -32,7 +32,7 @@ jobs:
           - debian
           - ubuntu
           - fedora
-          - opensuse/tumbleweed
+          - opensuse/leap
     steps:
       - uses: actions/checkout@v2
 

pkg/build-release.sh

@@ -18,21 +18,19 @@ then
     debhelper        \
     git
 
-  curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --profile minimal -y
-  source ~/.cargo/env
-
 elif command -v yum
 then
   yum install -y \
-    cargo        \
+    gcc          \
     gettext      \
     git          \
     rpm-build
 
 elif command -v zypper
 then
   zypper install -y \
-    cargo           \
+    curl            \
+    gcc             \
     gettext-runtime \
     git             \
     rpm-build
@@ -42,6 +40,9 @@ else
   exit 1
 fi
 
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --profile minimal -y
+source ~/.cargo/env
+
 # Test the builtin in this system.
 cargo test