If you don't pay Social Security and Medicare tax on that income, it doesn't count as earned income/compensation for purposes of being eligible for a IRA contribution.
If you report the income, on line 1 of form 1040, with the "SCH" notation, you do not qualify for an IRA contribution (Neither Roth or Traditional).
To qualify for a IRA contribution, you need to enter the income as self employment and pay Social Security and Medicare taxes (as "self employment tax").
