Use .NET Core 2.1 SDK on Linux.

This uses the latest .NET Core 2.1 SDK and instructions from https://www.microsoft.com/net/download/linux-package-manager/ubuntu14-04/sdk-current

Author: bgrainger

.travis.yml

@@ -21,11 +21,11 @@ env:
 
 before_install:
 - .ci/docker-run.sh $IMAGE $NAME 3307 $OMIT_FEATURES
-- curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
-- sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
-- sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-trusty-prod trusty main" > /etc/apt/sources.list.d/dotnetdev.list'
+- wget -q -O packages-microsoft-prod.deb https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb
+- sudo dpkg -i packages-microsoft-prod.deb
+- sudo apt-get install apt-transport-https
 - sudo apt-get update
-- sudo apt-get install -y dotnet-sdk-2.1.4 dotnet-sharedframework-microsoft.netcore.app-1.1.2
+- sudo apt-get install -y dotnet-sdk-2.1 dotnet-sharedframework-microsoft.netcore.app-1.1.2
 
 script:
 - dotnet restore

src/MySqlConnector/Protocol/Serialization/StreamByteHandler.cs

@@ -57,7 +57,7 @@ async Task<int> DoReadBytesAsync(ArraySegment<byte> buffer_)
 				{
 					bytesRead = await m_stream.ReadAsync(buffer_.Array, buffer_.Offset, buffer_.Count).ConfigureAwait(false);
 				}
-				catch (ObjectDisposedException ex)
+				catch (Exception ex) when (ex is ObjectDisposedException || ex is IOException)
 				{
 					if (RemainingTimeout != Constants.InfiniteTimeout)
 					{