Test appveyor

appveyor.yml

@@ -3,7 +3,7 @@ install:
 - cmd: >-
     appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
 
-    rustup-init.exe -y --default-host %TARGET%
+    rustup-init.exe -y --default-host msvc
 
     set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
 
@@ -16,4 +16,4 @@ after_test:
 - cmd: >-
     cargo build --verbose
 
-    cargo test
+    cargo test