remove default target

.cargo/config

 [alias]
-xbuild = "build -Z build-std=core,alloc"
-
-[build]
-target = "x86_64-unknown-hermit-kernel"
+xbuild = "build -Z build-std=core,alloc --target x86_64-unknown-hermit-kernel"
 
 [target.x86_64-unknown-hermit-kernel]
 runner = "uhyve -v"

.github/workflows/test.yml

@@ -45,4 +45,5 @@ jobs:
       run: cargo --version
     - name: Build
       run:
-         cargo test --target ${targets}
+         cargo test
+