context.log_level = 100 still shows corefile parsing errors

[Reelix]

Pwntools Version: 4.2.1

If context.log_level = 100; is set, one would expect all output to be hidden.

When core = io.corefile; is run and the corefile fails to parse, a message is still output, even though you set the output level to 100

[!] Error parsing corefile stack: Found bad environment at 0x7ffcef1fffb7

From the debug log

2020-08-24T20:16:07:DEBUG:pwnlib.elf.corefile:Trying corefile_path: '/home/reelix/thm/anonymousplayground/core'
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:Parsing corefile...
2020-08-24T20:16:07:WARNING:pwnlib.elf.corefile:Error parsing corefile stack: Found bad environment at 0x7fff2f902fb7
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:'/tmp/tmp19mma2o3'
Arch:      amd64-64-little
RIP:       0x40070f
RSP:       0x7fff2f901a88
Exe:       '/home/reelix/thm/anonymousplayground/file.elf' (0x400000)
Fault:     0x6161617461616173
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:Parsing corefile...: Done
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:Parsing corefile...
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:'/home/reelix/thm/anonymousplayground/core.634721'
Arch:      amd64-64-little
RIP:       0x40070f
RSP:       0x7fff2f901a88
Exe:       '/home/reelix/thm/anonymousplayground/file.elf' (0x400000)
Fault:     0x6161617461616173
2020-08-24T20:16:07:INFO:pwnlib.elf.corefile:Parsing corefile...: Done