test: flaky replication/gh-5287-boot-anon.test.lua test

[avtikhon]

Tarantool version:
Tarantool 2.6.0-153-gc8dda037e4
Target: Linux-x86_64-RelWithDebInfo
Build options: cmake . -DCMAKE_INSTALL_PREFIX=/usr/local -DENABLE_BACKTRACE=ON
Compiler: /usr/bin/clang-11 /usr/bin/clang++-11
C_FLAGS: -Wno-unknown-pragmas -fexceptions -funwind-tables -fno-omit-frame-pointer -fno-stack-protector -fno-common -msse2 -fsanitize=address -fsanitize-blacklist=/builds/zEqw3h-j/0/tarantool/tarantool/asan/asan.supp -std=c11 -Wall -Wextra -Wno-strict-aliasing -fsanitize=alignment,bool,bounds,builtin,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,return,shift,unreachable,vla-bound -fno-sanitize-recover=alignment,bool,bounds,builtin,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,return,shift,unreachable,vla-bound -Wno-char-subscripts -Wno-gnu-alignof-expression -Werror
CXX_FLAGS: -Wno-unknown-pragmas -fexceptions -funwind-tables -fno-omit-frame-pointer -fno-stack-protector -fno-common -msse2 -fsanitize=address -fsanitize-blacklist=/builds/zEqw3h-j/0/tarantool/tarantool/asan/asan.supp -std=c++11 -Wall -Wextra -Wno-strict-aliasing -fsanitize=alignment,bool,bounds,builtin,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,return,shift,unreachable,vla-bound -fno-sanitize-recover=alignment,bool,bounds,builtin,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,return,shift,unreachable,vla-bound -Wno-char-subscripts -Wno-invalid-offsetof -Wno-gnu-alignof-expression -Werror

OS version:
Linux (Debian 10)

Bug description:
https://gitlab.com/tarantool/tarantool/-/jobs/784777126#L4871

artifacts.zip

Result file chcksum is not usable due to changing data in results.

[155] --- replication/gh-5287-boot-anon.result	Sun Oct 11 20:19:29 2020
[155] +++ replication/gh-5287-boot-anon.reject	Sun Oct 11 22:08:40 2020
[155] @@ -33,7 +33,13 @@
[155]  -- Without box.info.replication test-run fails to wait a cond.
[155]  test_run:wait_cond(function() return next(box.info.replication) ~= nil end)
[155]   | ---
[155] - | - true
[155] + | - error: "builtin/box/load_cfg.lua:616: Please call box.cfg{} first\nstack traceback:\n\tbuiltin/box/load_cfg.lua:616:
[155] + |     in function '__index'\n\t[string \"return test_run:wait_cond(function() return
[155] + |     n...\"]:1: in function 'cond'\n\t...arantool/tarantool/test/var/155_replication/test_run.lua:411:
[155] + |     in function <...arantool/tarantool/test/var/155_replication/test_run.lua:404>\n\t[C]:
[155] + |     in function 'pcall'\n\tbuiltin/box/console.lua:402: in function 'eval'\n\tbuiltin/box/console.lua:708:
[155] + |     in function 'repl'\n\tbuiltin/box/console.lua:842: in function <builtin/box/console.lua:828>\n\t[C]:
[155] + |     in function 'pcall'\n\tbuiltin/socket.lua:1081: in function <builtin/socket.lua:1079>"
[155]   | ...
[155]  test_run:wait_upstream(1, {status = 'follow'})
[155]   | ---
[155] 

Steps to reproduce:

Optional (but very desirable):

• coredump
• backtrace
• netstat