# Travis\_wait doesn't output anything in Arm64

**URL:** <https://travis-ci.community/t/travis-wait-doesnt-output-anything-in-arm64/6449>\
**Category:** Multi CPU Architecture\
**Tags:** bug\
**Created:** [December 13, 2019, 9:35am UTC](https://travis-ci.community/t/travis-wait-doesnt-output-anything-in-arm64/6449 "2019-12-13T09:35:57Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![native-api](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/native-api/32/430_2.png) [@native-api](https://travis-ci.community/u/native-api)\
**Post date:** [December 15, 2019, 4:44pm UTC](https://travis-ci.community/t/travis-wait-doesnt-output-anything-in-arm64/6449/4 "2019-12-15T16:44:22Z")

</div>

Okay, [running your build logic while tracing Travis logic](https://travis-ci.org/native-api/SeisIO.jl/builds/625331719), I see that `echo -ne <...>` from `travis_jigger` don’t produce any output.

@BanzaiMan @michal, **I believe the reason is the logging facility in Multi-CPU architecture is line-buffered.** While [`travis_wait` plays fancy and outputs incomplete lines](https://travis-ci.org/native-api/SeisIO.jl/builds/625331719#L206):

```auto
echo -ne 'Still running (1 of 20): julia -e using Pkg; Pkg.build(); Pkg.test(coverage=true);\r'

```

With the latest changes, [the log output window in Web UI emulates terminal control characters](https://travis-ci.community/t/build-cache-from-the-default-branch-is-not-reused-the-job-exceeded-the-maximum-log-length-but-the-log-is-short/6206/2). So printing an incomplete line for fancy effects seems like fair game.

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_[View the full topic](https://travis-ci.community/t/travis-wait-doesnt-output-anything-in-arm64/6449)._