test: flaky replication/gh-5298-qsync-recovery-snap.test.lua test

[avtikhon]

Tarantool version:
Tarantool 2.6.0-142-g7730ddec1
Target: Darwin-x86_64-RelWithDebInfo
Build options: cmake . -DCMAKE_INSTALL_PREFIX=/usr/local -DENABLE_BACKTRACE=ON
Compiler: /Library/Developer/CommandLineTools/usr/bin/cc /Library/Developer/CommandLineTools/usr/bin/c++
C_FLAGS: -Wno-unknown-pragmas -fexceptions -funwind-tables -fno-omit-frame-pointer -fno-stack-protector -fno-common -msse2 -std=c11 -Wall -Wextra -Wno-strict-aliasing -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 -std=c++11 -Wall -Wextra -Wno-strict-aliasing -Wno-char-subscripts -Wno-invalid-offsetof -Wno-gnu-alignof-expression -Werror

OS version:
OSX

Bug description:
https://gitlab.com/tarantool/tarantool/-/jobs/772046503#L4324

artifacts.zip

results file checksum: bf05ad24b40e88195563a61bfd1fceef

[012] replication/gh-5298-qsync-recovery-snap.test.l> vinyl           
[012] [Instance "master"] Tarantool server failed to start
[012] 
[012] Last 15 lines of Tarantool Log file [Instance "master"][/tmp/tnt/012_replication/master.log]:
[012] 2020-10-05 06:19:16.814 [30158] main/105/gc I> removed /tmp/tnt/012_replication/master/518/0/00000000000000000004.run
[012] 2020-10-05 06:19:16.814 [30158] main/105/gc I> removed /tmp/tnt/012_replication/master/519/0/00000000000000000006.index
[012] 2020-10-05 06:19:16.814 [30158] main/105/gc I> removed /tmp/tnt/012_replication/master/519/0/00000000000000000006.run
[012] 2020-10-05 06:19:16.815 [30158] wal I> removed /tmp/tnt/012_replication/master/00000000000000000107.xlog
[012] 2020-10-05 06:19:16.815 [30158] wal I> removed /tmp/tnt/012_replication/master/00000000000000000143.xlog
[012] 2020-10-05 06:19:17.106 [30158] main C> got signal 15 - Terminated: 15
[012] Starting instance master...
[012] Run console at unix/:/tmp/tnt/012_replication/master.control
[012] tcp_server: remove dead UNIX socket: /tmp/tnt/012_replication/master.control
[012] started
[012] 2020-10-05 06:19:17.510 [30242] main/103/master C> Tarantool 2.6.0-142-g7730ddec1
[012] 2020-10-05 06:19:17.511 [30242] main/103/master C> log level 5
[012] 2020-10-05 06:19:17.512 [30242] main/103/master xlog.c:416 E> XlogError: /tmp/tnt/012_replication/master/00000000000000000300.snap: invalid xlog order
[012] 2020-10-05 06:19:17.512 [30242] main/103/master F> can't initialize storage: /tmp/tnt/012_replication/master/00000000000000000300.snap: invalid xlog order
[012] 2020-10-05 06:19:17.512 [30242] main/103/master F> can't initialize storage: /tmp/tnt/012_replication/master/00000000000000000300.snap: invalid xlog order
[012] [ fail ]
[012] Worker "012_replication" got failed test; restarted the server

Steps to reproduce:

Optional (but very desirable):

• coredump
• backtrace
• netstat