title: Can't push to heroku, sassc segmentation fault
body: <p>I am having trouble pushing to heroku, I've already tried others solutions related to <em>Precompiling assets failed.</em>, like modifing <code>application.rb</code> to disable precompiled assets, running <code>rake assets:precompile</code>, and updating to rails 6.3.1 to prevent mimemagic recent error.</p>
  <p>Taking a look at heroku logs, I noticed:</p>
  <blockquote>
  <p>tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sassc-2.4.0/lib/sassc/engine.rb:43:
  [BUG] Segmentation fault at 0x0000000000000000        ruby 3.0.0p0
  (2020-12-25 revision 95aff21468) [x86_64-linux]</p>
  </blockquote>
  <p>Part of heroku's log</p>
  <pre><code>       ...
         yarn install v1.22.4
         [1/4] Resolving packages...
         [2/4] Fetching packages...
         info fsevents@2.1.3: The platform &quot;linux&quot; is incompatible with this module.
         info &quot;fsevents@2.1.3&quot; is an optional dependency and failed compatibility check. Excluding it from installation.
         info fsevents@1.2.13: The platform &quot;linux&quot; is incompatible with this module.
         info &quot;fsevents@1.2.13&quot; is an optional dependency and failed compatibility check. Excluding it from installation.
         [3/4] Linking dependencies...
         [4/4] Building fresh packages...
         Done in 5.07s.
         /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sassc-2.4.0/lib/sassc/engine.rb:43: [BUG] Segmentation fault at 0x0000000000000000
         ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux]
         
         -- Control frame information -----------------------------------------------
         c:0042 p:---- s:0308 e:000307 CFUNC  :compile_data_context
         c:0041 p:0314 s:0303 e:000302 METHOD /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sassc-2.4.0/lib/sassc/engine.rb:43
         c:0040 p:0044 s:0291 e:000290 METHOD /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sassc-rails-2.1.2/lib/sassc/rails/compressor.rb:29
         c:0039 p:0007 s:0285 e:000284 METHOD /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sprockets-4.0.2/lib/sprockets/sass_compressor.rb:30
         c:0038 p:0047 s:0280 e:000279 METHOD /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sprockets-4.0.2/lib/sprockets/processor_utils.rb:84
         c:0037 p:0014 s:0272 e:000271 BLOCK  /tmp/build_7857ebbd/vendor/bundle/ruby/3.0.0/gems/sprockets-4.0.2/lib/sprockets/processor_utils.rb:66 [FINISH]
         .....
         c:0036 p:---- s:0267 e:000266 CFUNC  :reverse_each
    7f104d3bd000-7f104d3be000 rw-p 00000000 00:00 0 
         7fffab4a6000-7fffac4a5000 rw-p 00000000 00:00 0                          [stack]
         7fffac503000-7fffac505000 r--p 00000000 00:00 0                          [vvar]
         7fffac505000-7fffac507000 r-xp 00000000 00:00 0                          [vdso]
         ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
         
         
         Aborted
   !
   !     Precompiling assets failed.
   !
   !     Push rejected, failed to compile Ruby app.
   !     Push failed
  </code></pre>