retries broken on dotnet-install.sh

2021-01-07T23:30:53.9907369Z ##[section]Starting: Restore and Build Product
2021-01-07T23:30:53.9917230Z ==============================================================================
2021-01-07T23:30:53.9917870Z Task         : Command line
2021-01-07T23:30:53.9918442Z Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
2021-01-07T23:30:53.9918959Z Version      : 2.178.0
2021-01-07T23:30:53.9919370Z Author       : Microsoft Corporation
2021-01-07T23:30:53.9919930Z Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
2021-01-07T23:30:53.9920574Z ==============================================================================
2021-01-07T23:30:54.3431532Z Generating script.
2021-01-07T23:30:54.3439495Z Script contents:
2021-01-07T23:30:54.3440578Z ./build.sh -subset libs+libs.tests -rc release -configuration Debug -ci -arch x64 -framework net6.0  -testscope innerloop      /p:ArchiveTests=true
2021-01-07T23:30:54.3441325Z ========================== Starting Command Output ===========================
2021-01-07T23:30:54.3460121Z [command]/usr/bin/bash --noprofile --norc /__w/_temp/cf3903db-f5db-47ff-a732-8d1d2b5c7a2e.sh
2021-01-07T23:30:54.3789136Z __DistroRid: linux-x64
2021-01-07T23:30:54.4143073Z Downloading 'https://dot.net/v1/dotnet-install.sh'
2021-01-07T23:30:54.6257921Z curl: (35) Network file descriptor is not connected
2021-01-07T23:30:54.6265950Z Curl failed; dumping some information about dotnet.microsoft.com for later investigation
2021-01-07T23:30:54.6270188Z /__w/1/s/eng/common/tools.sh: line 277: openssl: command not found
2021-01-07T23:30:54.6327541Z ##[error]Bash exited with code '127'.
2021-01-07T23:30:54.6630932Z ##[section]Finishing: Restore and Build Product

this line needs to still go ahead and retry even if openssl isn’t installed

https://github.com/dotnet/arcade/blob/master/eng/common/tools.sh#L277

[wfurt]

we can argument that to simply ignore failures. e.g. || true May be easier than the detection - and this should be temporarily anyway until we get root cause

[safern]

Not sure whether we want to check for openssl existing, or just install it.

I would say let’s check if openssl exists and if it doesn’t just skip the step that dumps extra info and go right into retries.