Tried building with ninja

appveyor.yml

@@ -13,10 +13,6 @@ init:
 
 environment:
   matrix:
-    # - variant: test_debug
-    #   compiler: msvc-14.0
-    #   model: 32
-    #   bjam: 1
     - variant: test_release
       compiler: msvc-14.0
       model: 64
@@ -24,12 +20,6 @@ environment:
       crypto: openssl
       bjam: 1
       cmake: 1
-    # - variant: test_debug
-    #   cmake: 1
-    #   compiler: gcc
-    #   model: 64
-    #   crypto: openssl
-    #   bjam: 1
 
 install:
   - ps: Install-Product node 12 x64
@@ -57,12 +47,13 @@ install:
   - cd %BOOST_BUILD_PATH%\src\engine
   - build.bat >nul
 
-  # - choco install ninja
+  - choco install ninja
   - cd %APPVEYOR_BUILD_FOLDER%\bindings\lib\libtorrent
   - mkdir build && cd build
   - set "PATH=c:\Python27-x64;%PATH%"
   - cmake -DCMAKE_CXX_STANDARD=14 -Dbuild_tools=ON -G "Visual Studio 14 2015 Win64" ..
-  - cmake --build . --config Release -- -verbosity:minimal
+  - ninja
+  - sudo ninja install
   - cd %APPVEYOR_BUILD_FOLDER%
   - npm install