moby: hcsshim::ImportLayer failed after cygwin and vs2015 build tools installations

Description

I cannot install cygwin during docker build anymore (but I still can install and use it during docker run).

Steps to reproduce the issue: Dockerfile:

FROM mcr.microsoft.com/windows/servercore:2004

RUN powershell -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))"
RUN choco feature enable -n=allowGlobalConfirmation
RUN choco feature disable -n=showDownloadProgress
RUN cinst cygwin

docker build .

Describe the results you received:

...
Step 5/5 : RUN cinst cygwin
 ---> Running in b00fa2c610e1
Chocolatey v0.10.15
Installing the following packages:
cygwin
By installing you accept licenses for the packages.

chocolatey-core.extension v1.3.5.1 [Approved]
chocolatey-core.extension package files install completed. Performing other installation steps.
 Installed/updated chocolatey-core extensions.
 The install of chocolatey-core.extension was successful.
  Software installed to 'C:\ProgramData\chocolatey\extensions\chocolatey-core'

Cygwin v3.1.5 [Approved]
cygwin package files install completed. Performing other installation steps.
Download site: http://mirrors.kernel.org/sourceware/cygwin/
Installing 64-bit Cygwin...
Cygwin has been installed.
Added C:\ProgramData\chocolatey\bin\Cygwin.exe shim pointed to 'c:\tools\cygwin\cygwin.bat'.
Copying cygwin package manager (setup) to C:\tools\cygwin
Environment Vars (like PATH) have changed. Close/reopen your shell to
 see the changes (or in powershell/cmd.exe just type `refreshenv`).
 ShimGen has successfully created a shim for setup-x86.exe
 The install of cygwin was successful.
  Software installed to 'C:\tools\cygwin'

Chocolatey installed 2/2 packages.
 See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).

Enjoy using Chocolatey? Explore more amazing features to take your
experience to the next level at
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re-exec error: exit status 1: output: time="2020-06-02T18:00:44+01:00" level=error msg="hcsshim::ImportLayer - failed failed in Win32: The system cannot find the path specified. (0x3)" error="hcsshim::ImportLayer - failed failed in Win32: The system cannot find the path specified. (0x3)" importFolderPath="D:\\Docker\\tmp\\hcs894249803" path="\\\\?\\D:\\Docker\\windowsfilter\\a0eea805d4dac2f148f2cb7f8a8620c96f22242d76a2ebb94d457745bdce7190"
hcsshim::ImportLayer - failed failed in Win32: The system cannot find the path specified. (0x3)

Describe the results you expected: Image created successfully, as it was happening for a long time.

Additional information you deem important (e.g. issue happens only occasionally): Something changed in cygwin, as failure observed on hosts where it was installing successfully before and there were no changes in docker on these hosts. I see the same issue on docker 19.03.05, 19.03.08, 19.03.11 and master, on windows server 1903, windows server 2004 and windows 10 2004, using mcr.microsoft.com/windows:1903, mcr.microsoft.com/windows:2004 and mcr.microsoft.com/windows/servercore:2004 base images - I could not install cygwin anywhere anymore.

Output of docker version:

Client: Docker Engine - Community
 Version:           19.03.8
 API version:       1.40
 Go version:        go1.12.17
 Git commit:        afacb8b
 Built:             Wed Mar 11 01:23:10 2020
 OS/Arch:           windows/amd64
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          19.03.8
  API version:      1.40 (minimum version 1.24)
  Go version:       go1.12.17
  Git commit:       afacb8b
  Built:            Wed Mar 11 01:37:20 2020
  OS/Arch:          windows/amd64
  Experimental:     true

Output of docker info:

Client:
 Debug Mode: false

Server:
 Containers: 7
  Running: 0
  Paused: 0
  Stopped: 7
 Images: 33
 Server Version: 19.03.8
 Storage Driver: windowsfilter (windows) lcow (linux)
  Windows:
  LCOW:
 Logging Driver: json-file
 Plugins:
  Volume: local
  Network: ics internal l2bridge l2tunnel nat null overlay private transparent
  Log: awslogs etwlogs fluentd gcplogs gelf json-file local logentries splunk syslog
 Swarm: inactive
 Default Isolation: hyperv
 Kernel Version: 10.0 19041 (19041.1.amd64fre.vb_release.191206-1406)
 Operating System: Windows 10 Pro Version 2004 (OS Build 19041.264)
 OSType: windows
 Architecture: x86_64
 CPUs: 12
 Total Memory: 31.92GiB
 Name: beta
 ID: KDC4:AXBE:IEZA:QYBJ:RDPR:YGDB:U6NR:7DSX:VQRN:L3IK:L7YI:W5J7
 Docker Root Dir: D:\Docker
 Debug Mode: true
  File Descriptors: -1
  Goroutines: 28
  System Time: 2020-06-02T18:03:58.8208563+01:00
  EventsListeners: 1
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: true
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Product License: Community Engine

Additional environment details (AWS, VirtualBox, physical, etc.): Physical machines and Proxmox VMs, Windows 10 and Windows Server (SAC)