build fail on Erlang 21.0-rc1

[c0b]

Similar as #1636 and #1414 testing rebar3 on Erlang 21, it seems failed to build with warnings from the erlware_commons dependency

root@cbe94990559b:/usr/src/rebar3-src# HOME=$PWD DEBUG=1 ./bootstrap
Dependency providers already exists
Dependency getopt already exists
Dependency cf already exists
Dependency erlware_commons already exists
/usr/src/rebar3-src/_build/default/lib/erlware_commons/src/ec_plists.erl:834: Warning: erlang:get_stacktrace/0: deprecated; use the new try/catch syntax for retrieving the stack backtrace
/usr/src/rebar3-src/_build/default/lib/erlware_commons/src/ec_plists.erl:836: Warning: erlang:get_stacktrace/0: deprecated; use the new try/catch syntax for retrieving the stack backtrace
root@cbe94990559b:/usr/src/rebar3-src# echo $?
1
root@cbe94990559b:/usr/src/rebar3-src# erl +V
Erlang (SMP,ASYNC_THREADS,HIPE) (BEAM) emulator version 10.0
root@cbe94990559b:/usr/src/rebar3-src# erl 
Erlang/OTP 21 [RELEASE CANDIDATE 1] [erts-10.0] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [hipe]

Eshell V10.0  (abort with ^G)
1> uptime().
9 seconds
ok
2> erlang:system_info(otp_release).       
"21"
3> 

[c0b]

see the OTP 21 Release Candidate 1 Release Notes
http://erlang.org/pipermail/erlang-questions/2018-May/095333.html

Compiler:

* erlang:get_stacktrace/0 deprecated to be replaced with try ...
  catch C:R:Stacktrace -> ...

[fenollp]

Maybe https://github.com/fenollp/otp_vsn#on-st-matching can help?

[ferd]

Yeah, I had prepared for unicode strings already, but missed that one. I don't know when I'll have time to tackle all the deps. cth_readable may be somewhat broken as well with the new surprise logging API that I never have seen a pull request for in the OTP repo.

[ferd]

Fixed in #1773