Weird, $ua->request() by me crashes. The error reported by Perl is none (the crash is uncontrolled). The system exception code c0000005 stands for memory access violation (attempt to write or read to/from invalid address). What's your Perl version and can you share your ssleay32.dll and libeay32.dll?
App version: 18.104.22.16803
Error module: perl526.dll
Error module version: 0.0.0.0
Exception code: c0000005
Exception offset: 000000000013ada7
OS version: 6.3.9600.2.0.0.256.4