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Segmentation fault with Ruby 2.3.8 and mysql2 when there is a gem installed from GitHub (https) #150

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@ryanwi

Description

@ryanwi

I'm having a problem with the mysql2 gem on Ruby 2.3.8 in the GH action environment. I've created a public repo to demonstrate the issue at https://github.com/ryanwi/gh-actions-fault-example/ .

  • Using the ubuntu-18.04 VM in GH Actions (ubuntu-16.04 is working)
  • The action is installing 2 gems, mysql2 0.5.3 and sequel 5.40.0.
  • The action creates a database successful with the mysql cli.
  • The action then attempts to query the database.
  • With Ruby 2.3.8, when the sequel gem is installed from GitHub, mysql2 will encounter a segmentation fault.
  • With Ruby 2.4+, no segmentation fault.
  • Any gem installed from GitHub will trigger this on Ruby 2.3.8, I'm demonstrating it with sequel, but I've reproduced with other gems as well.
  • Having all gems installed from rubygems will not trigger this.
  • Looking at the trace, it does appear that libcrypto switches from /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 to /opt/hostedtoolcache/Ruby/2.3.8/x64/openssl/lib/libcrypto.so.1.0.0 (thinking is part of the problem based on conversation in Ruby Mysql2-Gem OpenSSL Segmentation Fault openssl/openssl#10583)

Here is the fault, you can see the full output in the Action output:

bundle exec ruby -e "require 'mysql2'; results = Mysql2::Client.new(:host => '127.0.0.1', :username => 'root', :database => 'ghactions_test').query('SELECT table_name from information_schema.tables;');"
  shell: /bin/bash -e {0}
/opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/mysql2.so: [BUG] Segmentation fault at 0x0000000000000000
ruby 2.3.8p459 (2018-10-18 revision 65136) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0006 p:-11792684958128 s:0020 e:000019 TOP    [FINISH]
c:0005 p:---- s:0018 e:000017 CFUNC  :require
c:0004 p:0306 s:0014 e:000013 TOP    /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2.rb:36 [FINISH]
c:0003 p:---- s:0009 e:000008 CFUNC  :require
c:0002 p:0008 s:0005 E:001c48 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0002 E:000100 (none) [FINISH]

- Ruby level backtrace information ----------------------------------------
-e:1:in `<main>'
-e:1:in `require'
/opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2.rb:36:in `<top (required)>'
/opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2.rb:36:in `require'

-- Machine register context ------------------------------------------------
 RIP: 0x00007ff0353e2c6a RBP: 0x000055cd96654520 RSP: 0x00007ffdba6ec3d8
 RAX: 0x0000000000000000 RBX: 0x000055cd964c74c0 RCX: 0x0000000000000010
 RDX: 0x0000000000000000 RDI: 0x0000000000000000 RSI: 0x0000000000000000
  R8: 0x000055cd96651d38  R9: 0x000055cd966531e8 R10: 0x0000000000000001
 R11: 0x00007ff033591aa0 R12: 0x0000000000000002 R13: 0x000055cd96654628
 R14: 0x000055cd96654500 R15: 0x00007ff033199240 EFL: 0x0000000000010283

-- Other runtime information -----------------------------------------------

* Loaded script: -e

* Loaded features:

    0 enumerator.so
    1 thread.rb
    2 rational.so
    3 complex.so
    4 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/encdb.so
    5 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/trans/transdb.so
    6 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/unicode_normalize.rb
    7 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/rbconfig.rb
    8 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/compatibility.rb
    9 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/defaults.rb
   10 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/deprecate.rb
   11 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/errors.rb
   12 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/version.rb
   13 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/requirement.rb
   14 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/platform.rb
   15 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/basic_specification.rb
   16 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/stub_specification.rb
   17 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/util/list.rb
   18 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/stringio.so
   19 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/rfc2396_parser.rb
   20 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/rfc3986_parser.rb
   21 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/common.rb
   22 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/generic.rb
   23 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/ftp.rb
   24 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/http.rb
   25 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/https.rb
   26 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/ldap.rb
   27 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/ldaps.rb
   28 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri/mailto.rb
   29 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/uri.rb
   30 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/specification.rb
   31 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/exceptions.rb
   32 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/dependency.rb
   33 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/core_ext/kernel_gem.rb
   34 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/monitor.rb
   35 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb
   36 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems.rb
   37 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/path_support.rb
   38 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/version.rb
   39 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/core_ext/name_error.rb
   40 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/levenshtein.rb
   41 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/jaro_winkler.rb
   42 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkable.rb
   43 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/delegate.rb
   44 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb
   45 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb
   46 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkers/name_error_checkers.rb
   47 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkers/method_name_checker.rb
   48 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/spell_checkers/null_checker.rb
   49 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean/formatter.rb
   50 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean.rb
   51 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/version.rb
   52 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/compatibility_guard.rb
   53 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/pathname.so
   54 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/pathname.rb
   55 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/constants.rb
   56 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/io/console.so
   57 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/user_interaction.rb
   58 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/etc.so
   59 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/config_file.rb
   60 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/rubygems_integration.rb
   61 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/current_ruby.rb
   62 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/shared_helpers.rb
   63 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/fileutils.rb
   64 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendored_fileutils.rb
   65 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/errors.rb
   66 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/environment_preserver.rb
   67 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/plugin/api.rb
   68 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/plugin.rb
   69 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest.so
   70 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/digest.rb
   71 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/util.rb
   72 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/git.rb
   73 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/installed.rb
   74 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/specific_file.rb
   75 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/local.rb
   76 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/lock.rb
   77 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source/vendor.rb
   78 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/source.rb
   79 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/gem_helpers.rb
   80 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/match_platform.rb
   81 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/rubygems_ext.rb
   82 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/build_metadata.rb
   83 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler.rb
   84 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/settings.rb
   85 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/rubygems/ext/builder.rb
   86 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/feature_flag.rb
   87 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source.rb
   88 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/path.rb
   89 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/git.rb
   90 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/rubygems.rb
   91 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/lockfile_parser.rb
   92 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/set.rb
   93 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/definition.rb
   94 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/dependency.rb
   95 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/ruby_dsl.rb
   96 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/dsl.rb
   97 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source_list.rb
   98 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/metadata.rb
   99 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/uri_credentials_filter.rb
  100 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/lazy_specification.rb
  101 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/index.rb
  102 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/tsort.rb
  103 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/forwardable.rb
  104 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/spec_set.rb
  105 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/shellwords.rb
  106 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/tmpdir.rb
  107 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/tempfile.rb
  108 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/git/git_proxy.rb
  109 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest/sha1.so
  110 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/compatibility.rb
  111 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/gem_metadata.rb
  112 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/delegates/specification_provider.rb
  113 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/errors.rb
  114 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/action.rb
  115 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/add_edge_no_circular.rb
  116 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/add_vertex.rb
  117 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/delete_edge.rb
  118 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/detach_vertex_named.rb
  119 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/set_payload.rb
  120 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/tag.rb
  121 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/log.rb
  122 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/vertex.rb
  123 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph.rb
  124 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/state.rb
  125 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/modules/specification_provider.rb
  126 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/delegates/resolution_state.rb
  127 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/resolution.rb
  128 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/resolver.rb
  129 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo/modules/ui.rb
  130 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendor/molinillo/lib/molinillo.rb
  131 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/vendored_molinillo.rb
  132 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/resolver/spec_group.rb
  133 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/resolver.rb
  134 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/source/gemspec.rb
  135 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/runtime.rb
  136 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/dep_proxy.rb
  137 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/ui.rb
  138 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/ui/silent.rb
  139 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/ui/rg_proxy.rb
  140 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/remote_specification.rb
  141 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/stub_specification.rb
  142 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/endpoint_specification.rb
  143 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/ruby_version.rb
  144 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/bundler-1.17.3/lib/bundler/setup.rb
  145 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/date_core.so
  146 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/date.rb
  147 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/bigdecimal.so
  148 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/version.rb
  149 /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/error.rb

* Process memory map:

55cd93fca000-55cd93fcb000 r-xp 00000000 08:11 474585                     /opt/hostedtoolcache/Ruby/2.3.8/x64/bin/ruby
55cd941ca000-55cd941cb000 r--p 00000000 08:11 474585                     /opt/hostedtoolcache/Ruby/2.3.8/x64/bin/ruby
55cd941cb000-55cd941cc000 rw-p 00001000 08:11 474585                     /opt/hostedtoolcache/Ruby/2.3.8/x64/bin/ruby
55cd95bdc000-55cd96657000 rw-p 00000000 00:00 0                          [heap]
7ff0315b0000-7ff0315c7000 r-xp 00000000 08:11 89596                      /lib/x86_64-linux-gnu/libgcc_s.so.1
7ff0315c7000-7ff0317c6000 ---p 00017000 08:11 89596                      /lib/x86_64-linux-gnu/libgcc_s.so.1
7ff0317c6000-7ff0317c7000 r--p 00016000 08:11 89596                      /lib/x86_64-linux-gnu/libgcc_s.so.1
7ff0317c7000-7ff0317c8000 rw-p 00017000 08:11 89596                      /lib/x86_64-linux-gnu/libgcc_s.so.1
7ff0317c8000-7ff03198b000 r-xp 00000000 08:11 89594                      /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.28
7ff03198b000-7ff031b8b000 ---p 001c3000 08:11 89594                      /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.28
7ff031b8b000-7ff031b96000 r--p 001c3000 08:11 89594                      /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.28
7ff031b96000-7ff031b99000 rw-p 001ce000 08:11 89594                      /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.28
7ff031b99000-7ff031b9c000 rw-p 00000000 00:00 0 
7ff031b9c000-7ff031e39000 r-xp 00000000 08:11 102930                     /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7ff031e39000-7ff032038000 ---p 0029d000 08:11 102930                     /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7ff032038000-7ff032064000 r--p 0029c000 08:11 102930                     /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7ff032064000-7ff032066000 rw-p 002c8000 08:11 102930                     /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7ff032066000-7ff03206a000 rw-p 00000000 00:00 0 
7ff03206a000-7ff0320eb000 r-xp 00000000 08:11 102931                     /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7ff0320eb000-7ff0322eb000 ---p 00081000 08:11 102931                     /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7ff0322eb000-7ff0322f4000 r--p 00081000 08:11 102931                     /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7ff0322f4000-7ff0322f8000 rw-p 0008a000 08:11 102931                     /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7ff0322f8000-7ff032314000 r-xp 00000000 08:11 2182                       /lib/x86_64-linux-gnu/libz.so.1.2.11
7ff032314000-7ff032513000 ---p 0001c000 08:11 2182                       /lib/x86_64-linux-gnu/libz.so.1.2.11
7ff032513000-7ff032514000 r--p 0001b000 08:11 2182                       /lib/x86_64-linux-gnu/libz.so.1.2.11
7ff032514000-7ff032515000 rw-p 0001c000 08:11 2182                       /lib/x86_64-linux-gnu/libz.so.1.2.11
7ff032515000-7ff032852000 r-xp 00000000 08:11 99980                      /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20.3.19
7ff032852000-7ff032a51000 ---p 0033d000 08:11 99980                      /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20.3.19
7ff032a51000-7ff032a55000 r--p 0033c000 08:11 99980                      /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20.3.19
7ff032a55000-7ff032ac7000 rw-p 00340000 08:11 99980                      /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20.3.19
7ff032ac7000-7ff032acd000 rw-p 00000000 00:00 0 
7ff032acd000-7ff032ade000 r-xp 00000000 08:11 476970                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/mysql2.so
7ff032ade000-7ff032cdd000 ---p 00011000 08:11 476970                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/mysql2.so
7ff032cdd000-7ff032cdf000 r--p 00010000 08:11 476970                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/mysql2.so
7ff032cdf000-7ff032ce0000 rw-p 00012000 08:11 476970                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/gems/2.3.0/gems/mysql2-0.5.3/lib/mysql2/mysql2.so
7ff032ce0000-7ff032cf5000 r-xp 00000000 08:11 475343                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/bigdecimal.so
7ff032cf5000-7ff032ef4000 ---p 00015000 08:11 475343                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/bigdecimal.so
7ff032ef4000-7ff032ef5000 r--p 00014000 08:11 475343                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/bigdecimal.so
7ff032ef5000-7ff032ef6000 rw-p 00015000 08:11 475343                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/bigdecimal.so
7ff032ef6000-7ff032f29000 r-xp 00000000 08:11 475281                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/date_core.so
7ff032f29000-7ff033129000 ---p 00033000 08:11 475281                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/date_core.so
7ff033129000-7ff03312a000 r--p 00033000 08:11 475281                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/date_core.so
7ff03312a000-7ff03312b000 rw-p 00034000 08:11 475281                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/date_core.so
7ff03312b000-7ff03312c000 rw-p 00000000 00:00 0 
7ff03312c000-7ff033368000 r-xp 00000000 08:11 258101                     /opt/hostedtoolcache/Ruby/2.3.8/x64/openssl/lib/libcrypto.so.1.0.0
7ff033368000-7ff033568000 ---p 0023c000 08:11 258101                     /opt/hostedtoolcache/Ruby/2.3.8/x64/openssl/lib/libcrypto.so.1.0.0
7ff033568000-7ff033583000 r--p 0023c000 08:11 258101                     /opt/hostedtoolcache/Ruby/2.3.8/x64/openssl/lib/libcrypto.so.1.0.0
7ff033583000-7ff03358f000 rw-p 00257000 08:11 258101                     /opt/hostedtoolcache/Ruby/2.3.8/x64/openssl/lib/libcrypto.so.1.0.0
7ff03358f000-7ff033592000 rw-p 00000000 00:00 0 
7ff033592000-7ff033593000 r-xp 00000000 08:11 475367                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest/sha1.so
7ff033593000-7ff033792000 ---p 00001000 08:11 475367                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest/sha1.so
7ff033792000-7ff033793000 r--p 00000000 08:11 475367                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest/sha1.so
7ff033793000-7ff033794000 rw-p 00001000 08:11 475367                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest/sha1.so
7ff033794000-7ff033798000 r-xp 00000000 08:11 475357                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest.so
7ff033798000-7ff033997000 ---p 00004000 08:11 475357                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest.so
7ff033997000-7ff033998000 r--p 00003000 08:11 475357                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest.so
7ff033998000-7ff033999000 rw-p 00004000 08:11 475357                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/digest.so
7ff033999000-7ff03399f000 r-xp 00000000 08:11 475353                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/etc.so
7ff03399f000-7ff033b9e000 ---p 00006000 08:11 475353                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/etc.so
7ff033b9e000-7ff033b9f000 r--p 00005000 08:11 475353                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/etc.so
7ff033b9f000-7ff033ba0000 rw-p 00006000 08:11 475353                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/etc.so
7ff033ba0000-7ff033ba4000 r-xp 00000000 08:11 475374                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/io/console.so
7ff033ba4000-7ff033da4000 ---p 00004000 08:11 475374                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/io/console.so
7ff033da4000-7ff033da5000 r--p 00004000 08:11 475374                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/io/console.so
7ff033da5000-7ff033da6000 rw-p 00005000 08:11 475374                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/io/console.so
7ff033da6000-7ff033dad000 r-xp 00000000 08:11 475352                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/pathname.so
7ff033dad000-7ff033fac000 ---p 00007000 08:11 475352                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/pathname.so
7ff033fac000-7ff033fad000 r--p 00006000 08:11 475352                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/pathname.so
7ff033fad000-7ff033fae000 rw-p 00007000 08:11 475352                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/pathname.so
7ff033fae000-7ff033fb6000 r-xp 00000000 08:11 475349                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/stringio.so
7ff033fb6000-7ff0341b5000 ---p 00008000 08:11 475349                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/stringio.so
7ff0341b5000-7ff0341b6000 r--p 00007000 08:11 475349                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/stringio.so
7ff0341b6000-7ff0341b7000 rw-p 00008000 08:11 475349                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/stringio.so
7ff0341b7000-7ff0341b9000 r-xp 00000000 08:11 475307                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/trans/transdb.so
7ff0341b9000-7ff0343b9000 ---p 00002000 08:11 475307                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/trans/transdb.so
7ff0343b9000-7ff0343ba000 r--p 00002000 08:11 475307                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/trans/transdb.so
7ff0343ba000-7ff0343bb000 rw-p 00003000 08:11 475307                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/trans/transdb.so
7ff0343bb000-7ff0343bd000 r-xp 00000000 08:11 475331                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/encdb.so
7ff0343bd000-7ff0345bc000 ---p 00002000 08:11 475331                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/encdb.so
7ff0345bc000-7ff0345bd000 r--p 00001000 08:11 475331                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/encdb.so
7ff0345bd000-7ff0345be000 rw-p 00002000 08:11 475331                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/ruby/2.3.0/x86_64-linux/enc/encdb.so
7ff0345be000-7ff0346bf000 rw-p 00000000 00:00 0 
7ff0346bf000-7ff03485c000 r-xp 00000000 08:11 2186                       /lib/x86_64-linux-gnu/libm-2.27.so
7ff03485c000-7ff034a5b000 ---p 0019d000 08:11 2186                       /lib/x86_64-linux-gnu/libm-2.27.so
7ff034a5b000-7ff034a5c000 r--p 0019c000 08:11 2186                       /lib/x86_64-linux-gnu/libm-2.27.so
7ff034a5c000-7ff034a5d000 rw-p 0019d000 08:11 2186                       /lib/x86_64-linux-gnu/libm-2.27.so
7ff034a5d000-7ff034a66000 r-xp 00000000 08:11 2170                       /lib/x86_64-linux-gnu/libcrypt-2.27.so
7ff034a66000-7ff034c65000 ---p 00009000 08:11 2170                       /lib/x86_64-linux-gnu/libcrypt-2.27.so
7ff034c65000-7ff034c66000 r--p 00008000 08:11 2170                       /lib/x86_64-linux-gnu/libcrypt-2.27.so
7ff034c66000-7ff034c67000 rw-p 00009000 08:11 2170                       /lib/x86_64-linux-gnu/libcrypt-2.27.so
7ff034c67000-7ff034c95000 rw-p 00000000 00:00 0 
7ff034c95000-7ff034c98000 r-xp 00000000 08:11 2185                       /lib/x86_64-linux-gnu/libdl-2.27.so
7ff034c98000-7ff034e97000 ---p 00003000 08:11 2185                       /lib/x86_64-linux-gnu/libdl-2.27.so
7ff034e97000-7ff034e98000 r--p 00002000 08:11 2185                       /lib/x86_64-linux-gnu/libdl-2.27.so
7ff034e98000-7ff034e99000 rw-p 00003000 08:11 2185                       /lib/x86_64-linux-gnu/libdl-2.27.so
7ff034e99000-7ff034f18000 r-xp 00000000 08:11 6247                       /usr/lib/x86_64-linux-gnu/libgmp.so.10.3.2
7ff034f18000-7ff035118000 ---p 0007f000 08:11 6247                       /usr/lib/x86_64-linux-gnu/libgmp.so.10.3.2
7ff035118000-7ff035119000 r--p 0007f000 08:11 6247                       /usr/lib/x86_64-linux-gnu/libgmp.so.10.3.2
7ff035119000-7ff03511a000 rw-p 00080000 08:11 6247                       /usr/lib/x86_64-linux-gnu/libgmp.so.10.3.2
7ff03511a000-7ff035134000 r-xp 00000000 08:11 2240                       /lib/x86_64-linux-gnu/libpthread-2.27.so
7ff035134000-7ff035333000 ---p 0001a000 08:11 2240                       /lib/x86_64-linux-gnu/libpthread-2.27.so
7ff035333000-7ff035334000 r--p 00019000 08:11 2240                       /lib/x86_64-linux-gnu/libpthread-2.27.so
7ff035334000-7ff035335000 rw-p 0001a000 08:11 2240                       /lib/x86_64-linux-gnu/libpthread-2.27.so
7ff035335000-7ff035339000 rw-p 00000000 00:00 0 
7ff035339000-7ff035520000 r-xp 00000000 08:11 2168                       /lib/x86_64-linux-gnu/libc-2.27.so
7ff035520000-7ff035720000 ---p 001e7000 08:11 2168                       /lib/x86_64-linux-gnu/libc-2.27.so
7ff035720000-7ff035724000 r--p 001e7000 08:11 2168                       /lib/x86_64-linux-gnu/libc-2.27.so
7ff035724000-7ff035726000 rw-p 001eb000 08:11 2168                       /lib/x86_64-linux-gnu/libc-2.27.so
7ff035726000-7ff03572a000 rw-p 00000000 00:00 0 
7ff03572a000-7ff035a05000 r-xp 00000000 08:11 474589                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/libruby.so.2.3.0
7ff035a05000-7ff035c04000 ---p 002db000 08:11 474589                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/libruby.so.2.3.0
7ff035c04000-7ff035c0a000 r--p 002da000 08:11 474589                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/libruby.so.2.3.0
7ff035c0a000-7ff035c0d000 rw-p 002e0000 08:11 474589                     /opt/hostedtoolcache/Ruby/2.3.8/x64/lib/libruby.so.2.3.0
7ff035c0d000-7ff035c1c000 rw-p 00000000 00:00 0 
7ff035c1c000-7ff035c45000 r-xp 00000000 08:11 2090                       /lib/x86_64-linux-gnu/ld-2.27.so
7ff035c60000-7ff035c91000 r--p 00000000 08:11 7783                       /usr/lib/locale/C.UTF-8/LC_CTYPE
7ff035c91000-7ff035e2c000 r--p 00000000 08:11 7779                       /usr/lib/locale/locale-archive
7ff035e2c000-7ff035e31000 rw-p 00000000 00:00 0 
7ff035e37000-7ff035e38000 ---p 00000000 00:00 0 
7ff035e38000-7ff035e3c000 rw-p 00000000 00:00 0 
7ff035e3c000-7ff035e43000 r--s 00000000 08:11 5034                       /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache
7ff035e43000-7ff035e45000 rw-p 00000000 00:00 0 
7ff035e45000-7ff035e46000 r--p 00029000 08:11 2090                       /lib/x86_64-linux-gnu/ld-2.27.so
7ff035e46000-7ff035e47000 rw-p 0002a000 08:11 2090                       /lib/x86_64-linux-gnu/ld-2.27.so
7ff035e47000-7ff035e48000 rw-p 00000000 00:00 0 
7ffdb9ef2000-7ffdba6f1000 rw-p 00000000 00:00 0                          [stack]
7ffdba761000-7ffdba764000 r--p 00000000 00:00 0                          [vvar]
7ffdba764000-7ffdba765000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]


[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

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