task-runner

• Task version: 3.0.0
• Operating System: Linux (Ubuntu 18.04.04)

Example Taskfile showing the issue

tasks:
  hello:
    desc: 'hi'
    cmds:
      - echo "hi"
      -

When running task -l it fails with:

> task -t test_task.yml -l
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0

Testing methods like evm_mine and evm_increaseTime expect integer parameters. Unlike other methods, they reject these parameters if they are not decimal-encoded.

To reproduce

npx hardhat --version -> 2.5.0

Run npx hardhat node and make the following rpc calls:

> curl -H "Content-Type: application/json" -X POST --data \
        '{"id":1337,"jsonrpc":"2.0","method":"evm

It would be nice if doit could use as many processes as there are CPUs instead of only a hardcoded number.