"Framework version 1.0.5 was not found" on current .NET Core docker image

[csboling]

docker run --rm -it microsoft/dotnet bash
git clone https://github.com/storyteller/quickstarts
cd quickstarts/dotnet-cli
dotnet restore
dotnet storyteller

gives me

It was not possible to find any compatible framework version
The specified framework 'Microsoft.NETCore.App', version '1.0.5' was not found.
  - Check application dependencies and target a framework version installed at:
      /
  - Alternatively, install the framework version '1.0.5'.

and dotnet run gives

Invalid usage

 Usages for 'agent' (Used by dotnet storyteller to remote control the Storyteller specification engine)
  agent <port> [-s, --specs <specs>] [-y, --path <path>] [----prop:<prop> <value>] [-p, --profile <profile>] [-c, --culture <culture>] [-f, --fixtures <fixtures>]

etc., but the documentation suggests this should run all specifications in the console. Here is the output of dotnet --info on the image I happened to pull:

.NET Command Line Tools (2.1.4)

Product Information:
 Version:            2.1.4
 Commit SHA-1 hash:  5e8add2190

Runtime Environment:
 OS Name:     debian
 OS Version:  9
 OS Platform: Linux
 RID:         linux-x64
 Base Path:   /usr/share/dotnet/sdk/2.1.4/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.5
  Build    : 17373eb129b3b05aa18ece963f8795d65ef8ea54

What steps am I missing to get the quickstart example to work, or what .NET Core environments are currently supported?

[hastarin]

Not sure it will help but I noticed that instead of

dotnet run

you actually need

dotnet run -- run