Gem::InstallError: byebug requires Ruby version >= 2.4.0.

[33mGem::InstallError: byebug requires Ruby version >= 2.4.0.[0m
[32mInstalling coderay 1.1.2[0m
[32mInstalling daemons 1.3.1[0m
[32mInstalling diff-lcs 1.3[0m
[32mInstalling eventmachine 1.2.7 with native extensions[0m
[32mInstalling method_source 0.9.2[0m
[32mInstalling rack 2.0.8[0m
[32mInstalling rspec-support 3.9.2[0m
Using thrift 0.14.0 from source at `.`
[32mInstalling binding_of_caller 0.8.0 with native extensions[0m
[31mAn error occurred while installing byebug (11.1.1), and Bundler cannot continue.
Make sure that `gem install byebug -v '11.1.1'` succeeds before bundling.[0m
Makefile:651: recipe for target 'all-local' failed
make[2]: *** [all-local] Error 5
make[2]: Leaving directory '/thrift/src/lib/rb'
Makefile:584: recipe for target 'check-recursive' failed
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory '/thrift/src/lib'
Makefile:683: recipe for target 'check-recursive' failed
make: *** [check-recursive] Error 1
travis_time:end:00e36838:start=1581850070145039542,finish=1581850890512699570,duration=820367660028,event=script
[0K[31;1mThe command "build/docker/run.sh" exited with 2.[0m