C:\deps\skia>powershell -command "wget -UseBasicParsing -OutFile skia.zip https://github.com/aseprite/skia/releases/download/m102-861e4743af/Skia-Windows-Release-x64.zip"
wget : The remote name could not be resolved: 'github.com'
At line:1 char:1
+ wget -UseBasicParsing -OutFile skia.zip https://github.com/aseprite/s ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:Htt
pWebRequest) [Invoke-WebRequest], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShe
ll.Commands.InvokeWebRequestCommand
C:\deps\skia>powershell -command "Expand-Archive -Path .\skia.zip -DestinationPath ."
Expand-Archive : The path '.\skia.zip' either does not exist or is not a valid
file system path.
At line:1 char:1
+ Expand-Archive -Path .\skia.zip -DestinationPath .
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (.\skia.zip:String) [Expand-Arc
hive], InvalidOperationException
+ FullyQualifiedErrorId : ArchiveCmdletPathNotFound,Expand-Archive
C:\deps\skia>echo "switch to VS dev cmd"
"switch to VS dev cmd"
C:\deps\skia>call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\VsDevCmd.bat" -arch=x64
**********************************************************************
** Visual Studio 2019 Developer Command Prompt v16.11.18
** Copyright (c) 2021 Microsoft Corporation
**********************************************************************
"build ninja"
fatal: destination path 'ninja' already exists and is not an empty directory.
fatal: not a git repository (or any of the parent directories): .git
fatal: not a git repository (or any of the parent directories): .git
CMake Error: The source directory "C:/ninja" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
Error: could not load cache
"build aseprite"
Cloning into 'aseprite'...
fatal: unable to access 'https://github.com/aseprite/aseprite.git/': Could not resolve host: github.com
The system cannot find the path specified.
fatal: not a git repository (or any of the parent directories): .git
fatal: not a git repository (or any of the parent directories): .git
fatal: not a git repository (or any of the parent directories): .git
fatal: not a git repository (or any of the parent directories): .git
A subdirectory or file build already exists.
CMake Error: The source directory "C:/" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
ninja: error: loading 'build.ninja': The system cannot find the file specified.
The command 'cmd /S /C C:\build.bat' returned a non-zero code: 1
It probably goes without saying that GitHub does resolve just fine outside of the Docker image; I'm on it writing this issue right now.