sassc-ruby: segfault on 2.3.0

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/engine.rb:43: [BUG] Segmentation fault at 0x0000000000000000

ruby 2.6.4p104 (2019-08-28 revision 67798) [x86_64-linux]

-- Control frame information -----------------------------------------------

c:0059 p:---- s:0449 e:000448 CFUNC  :compile_data_context

c:0058 p:0318 s:0444 e:000443 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/engine.rb:43

c:0057 p:0006 s:0432 e:000431 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-rails-2.1.2/lib/sassc/rails/template.rb:40

c:0056 p:0028 s:0429 e:000428 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/utils.rb:138

c:0055 p:0164 s:0422 e:000421 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-rails-2.1.2/lib/sassc/rails/template.rb:39

c:0054 p:0053 s:0413 e:000412 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84

c:0053 p:0016 s:0405 e:000404 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66 [FINISH]

c:0052 p:---- s:0400 e:000399 CFUNC  :reverse_each

c:0051 p:0039 s:0396 e:000395 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65

c:0050 p:0015 s:0388 e:000387 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:22

c:0049 p:0013 s:0383 e:000382 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:33

c:0048 p:0053 s:0378 e:000377 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84

c:0047 p:0016 s:0370 e:000369 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66 [FINISH]

c:0046 p:---- s:0365 e:000364 CFUNC  :reverse_each

c:0045 p:0039 s:0361 e:000360 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65

c:0044 p:0476 s:0353 e:000352 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:182

c:0043 p:0073 s:0331 e:000330 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:59

c:0042 p:0038 s:0325 e:000324 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:335

c:0041 p:0157 s:0315 e:000314 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:43

c:0040 p:0022 s:0306 e:000302 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/cached_environment.rb:44

c:0039 p:0111 s:0298 e:000297 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/bundle.rb:27

c:0038 p:0053 s:0280 e:000279 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84

c:0037 p:0016 s:0272 e:000271 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66 [FINISH]

c:0036 p:---- s:0267 e:000266 CFUNC  :reverse_each

c:0035 p:0039 s:0263 e:000262 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65

c:0034 p:0476 s:0255 e:000254 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:182

c:0033 p:0073 s:0233 e:000232 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:59

c:0032 p:0038 s:0227 e:000226 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:335

c:0031 p:0157 s:0217 e:000216 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:43

c:0030 p:0022 s:0208 e:000204 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/cached_environment.rb:44

c:0029 p:0008 s:0200 e:000199 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/bundle.rb:32 [FINISH]

c:0028 p:---- s:0194 e:000193 CFUNC  :each_key

c:0027 p:0026 s:0190 e:000189 METHOD /home/travis/.rvm/rubies/ruby-2.6.4/lib/ruby/2.6.0/set.rb:338

c:0026 p:0171 s:0185 E:0023b0 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/bundle.rb:31

c:0025 p:0053 s:0167 e:000166 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84

c:0024 p:0016 s:0159 e:000158 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66 [FINISH]

c:0023 p:---- s:0154 e:000153 CFUNC  :reverse_each

c:0022 p:0039 s:0150 e:000149 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65

c:0021 p:0476 s:0142 e:000141 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:182

c:0020 p:0073 s:0120 e:000119 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:59

c:0019 p:0038 s:0114 e:000113 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:335

c:0018 p:0157 s:0104 e:000103 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:43

c:0017 p:0022 s:0095 e:000091 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/cached_environment.rb:44

c:0016 p:0037 s:0087 e:000086 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/base.rb:81

c:0015 p:0027 s:0079 e:000078 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/base.rb:88

c:0014 p:0010 s:0068 e:000067 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/manifest.rb:125

c:0013 p:0021 s:0065 e:000064 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/sa

c:0012 p:0003 s:0058 e:000057 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/synchroniza [FINISH]

c:0011 p:---- s:0055 e:000054 CFUNC  :synchronize

c:0010 p:0018 s:0051 e:000050 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/synchroniza

c:0009 p:0005 s:0047 e:000046 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/sa

c:0008 p:0023 s:0042 e:000041 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/promise.rb:

c:0007 p:0009 s:0036 e:000035 METHOD /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ru

c:0006 p:0049 s:0028 e:000027 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ru [FINISH]

c:0005 p:---- s:0022 e:000021 CFUNC  :loop

c:0004 p:0006 s:0018 e:000017 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ru [FINISH]

c:0003 p:---- s:0015 e:000014 CFUNC  :catch

c:0002 p:0020 s:0010 e:000009 BLOCK  /home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ru [FINISH]

c:0001 p:---- s:0003 e:000002 (none) [FINISH]

-- Ruby level backtrace information ----------------------------------------

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:324:in `block in create_worker'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:324:in `catch'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:325:in `block (2 levels) in create_worker'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:325:in `loop'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:342:in `block (3 levels) in create_worker'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:353:in `run_task'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/promise.rb:563:in `block in realize'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:19:in `execute'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:41:in `synchronize'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:41:in `synchronize'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:41:in `block in synchronize'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.6/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:24:in `block in execute'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/manifest.rb:125:in `block (2 levels) in find'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/base.rb:88:in `find_all_linked_assets'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/base.rb:81:in `find_asset'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/cached_environment.rb:44:in `load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:43:in `load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:335:in `fetch_asset_from_dependency_cache'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:59:in `block in load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:182:in `load_from_unloaded'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65:in `call_processors'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65:in `reverse_each'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66:in `block in call_processors'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84:in `call_processor'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/bundle.rb:31:in `call'

/home/travis/.rvm/rubies/ruby-2.6.4/lib/ruby/2.6.0/set.rb:338:in `each'

/home/travis/.rvm/rubies/ruby-2.6.4/lib/ruby/2.6.0/set.rb:338:in `each_key'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/bundle.rb:32:in `block in call'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/cached_environment.rb:44:in `load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:43:in `load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:335:in `fetch_asset_from_dependency_cache'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:59:in `block in load'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/loader.rb:182:in `load_from_unloaded'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gemck in call_processors'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84:in `call_processor'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:33:in `call'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:22:in `block in <class:CompositeProcessor>'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65:in `call_processors'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:65:in `reverse_each'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:66:in `block in call_processors'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/processor_utils.rb:84:in `call_processor'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-rails-2.1.2/lib/sassc/rails/template.rb:39:in `call'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sprockets-4.0.0/lib/sprockets/utils.rb:138:in `module_include'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-rails-2.1.2/lib/sassc/rails/template.rb:40:in `block in call'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/engine.rb:43:in `render'

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/engine.rb:43:in `compile_data_context'

-- Machine register context ------------------------------------------------

 RIP: 0x00007fbd0cd0e0d0 RBP: 0x00007fbd0cacde30 RSP: 0x00007fbd0cacd7d8

 RAX: 0x0000000000000000 RBX: 0x0000000000000001 RCX: 0x00007fbd0cacd868

 RDX: 0x0000000000000008 RDI: 0x0000000000000000 RSI: 0x000055ef73b2e108

  R8: 0x000055ef73709398  R9: 0x000055ef72ba3ed0 R10: 0x00007fbd0cf8ff82

 R11: 0x00007fbd0cf8ff32 R12: 0x00007fbd0cacdc50 R13: 0x00007fbd0cacdc70

 R14: 0x00007fbd0007c1e0 R15: 0x00007fbd0cace5a8 EFL: 0x0000000000010206

-- C level backtrace information -------------------------------------------

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(rb_vm_bugreport+0x769) [0x7fbd1d2f9429] vm_dump.c:715

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(rb_bug_context+0xe7) [0x7fbd1d13d107] error.c:609

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(sigsegv+0x42) [0x7fbd1d2607c2] signal.c:998

/lib/x86_64-linux-gnu/libc.so.6(0x7fbd1cccdf20) [0x7fbd1cccdf20]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(sass_value_get_tag+0x0) [0x7fbd0cd0e0d0]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_13Function_CallE+0x233c) [0x7fbd0cc2c66c]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_6ReturnE+0x3e) [0x7fbd0cc1f45e]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_5BlockE+0x6d) [0x7fbd0cc1f11d]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_13Function_CallE+0xdff) [0x7fbd0cc2b12f]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass9Functions7sass_ifERNS_11EnvironmentINS_10SharedImplINS_8AST_NodeEEEEES6_RNS_7ContextEPKcNS_11ParserStateERSt6vectorINS_9BacktraceESaISD_EESC_INS2_INS_12SelectorListEEESaISI_EESK_+0x69b) [0x7fbd0cc7a42b]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_13Function_CallE+0x176b) [0x7fbd0cc2ba9b]

/home/travis/build/sul-dlss/argo/vendor/bundle/ruby/2.6.0/gems/sassc-2.3.0/lib/sassc/libsass.so(_ZN4Sass4EvalclEPNS_8ArgumentE+0x4e) [0x7fbd0cc2496e]

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/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(rb_vm_exec+0xaf) [0x7fbd1d2e89ff] vm.c:1885

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(invoke_iseq_block_from_c+0x157) [0x7fbd1d2ec197] vm.c:1092

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(invoke_block_from_c_proc) vm.c:1192

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(vm_invoke_proc) vm.c:1210

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(rb_vm_invoke_proc) vm.c:1231

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(thread_do_start+0x251) [0x7fbd1d2a1301] thread.c:686

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(thread_start_func_2+0x1be) [0x7fbd1d2a39be] thread.c:725

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(rb_native_cond_initialize+0x0) [0x7fbd1d2a3f7b] thread_pthread.c:1030

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(register_cached_thread_and_wait) thread_pthread.c:1082

/home/travis/.rvm/rubies/ruby-2.6.4/bin/../lib/libruby.so.2.6(thread_start_func_1) thread_pthread.c:1037

/lib/x86_64-linux-gnu/libpthread.so.0(start_thread+0xdb) [0x7fbd1c85a6db]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fbd1cdb088f]