Standard library
Standard library is available at: https://deno.land/std/
Standard library is not yet stable and therefore it is versioned differently than Deno. For latest release consult or https://deno.land/std/version.ts. The standard library is released each time Deno is released.
instead, used a version of the std library which is immutable and will not change:
Troubleshooting
Some of the modules provided in standard library use unstable Deno APIs.
Solution to that problem requires adding flag:
To make sure that API producing error is unstable check declaration.