package

github.com/mosop/callback

0.6.3 / published Jul 23, 2017 / repository

A Crystal library for defining and invoking callbacks.

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Build failed

The documentation build for this version ran and did not produce anything usable. That is usually a shard that does not compile against the Crystal version it declared.

Last attempt Sep 25, 2026 at 08:08 UTC (attempt 45)

Reloading will not start another build. A version that does not compile under the current compiler is terminal, so one shard that cannot build does not crowd out the ones that can.

What the builder reported

docs-build: crystal docs exited 62

crystal docs said:

no-egress: verified in-process as uid 1000, ip and vsock sockets denied, io_uring denied, no_new_privs set
Crystal built without LibXML2 support, HTML sanitization will be skipped
Showing last frame. Use --error-trace for full trace.

In src/callback/result_set.cr:2:3

 2 | class ResultSet(T)
     ^
Error: abstract `def Enumerable(T)#each(& : (T ->))` must be implemented by Callback::ResultSet(T)

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