Loading modules: [ libc.so.1 ld.so.1 ]
ruby:core> 
ruby:core> ::status
debugging core file of ruby (64-bit) from uls-0
file: /builds/jkulik/ruby-2.5.5-2.6.3/components/ruby/ruby-25/build/sparcv9/ruby
initial argv: /builds/jkulik/ruby-2.5.5-2.6.3/components/ruby/ruby-25/build/sparcv9/ruby -e P
threading model: raw lwps
status: process terminated by SIGTRAP (Trace/Breakpoint Trap), pid=6404 uid=1277009
ruby:core> 
ruby:core> ::stack
libc.so.1`kill+8(2, 100106190, 1904, 5, 5, 1)
libruby.so.2`call_cfunc_m1+0xc(fffffffe1da77d38, 1002593a0, 2, 100106188, 100326380, 47)
libruby.so.2`vm_call_cfunc+0xf0(100101f88, 1002060f0, 2, 10056ce50, 100259120, fffffffe1dc38478)
libruby.so.2`vm_call_method+0xa0(100101f88, 1002060f0, ffffffff7fffc948, 10056ce50, 100341320, fffffffe1dc247a0)
libruby.so.2`vm_exec_core+0x1d34(100341320, fffffffe1dc35dd0, fffffffe1dc35dc8, 10056ce50, 100101f88, 1002060f0)
libruby.so.2`vm_exec+0xf8(100101f88, fffffffe1d966240, 10, 100261118, 100101f88, 10030b2f0)
libruby.so.2`ruby_exec_internal+0x94(10061a368, fffffffe1dc1a538, 100000ff0, fffffffe1d96be5c, 800000, fffffffe1dc34f38)
libruby.so.2`ruby_exec_node+0x10(10061a368, ffffffff7fffd07c, 137c51, 100000ff0, fffffffe1dc35dc8, ffffffff7fffcec8)
libruby.so.2`ruby_run_node+0x1c(10061a368, ffffffff7fffd218, ffffffff7fffd070, ffffffff7fffd068, 0, fffffffe1dc34f38)
main+0x54(3, ffffffff7fffd218, ffffffff7fffd238, 100000, 0, 0)
_start+0x64(0, 0, 0, 0, 0, 0)