$ apl --version
BUILDTAG:
---------
Project: GNU APL
Version / SVN: 1.8 / SVN: 1505M
Build Date: 2021-12-07 02:34:36 UTC
Build OS: Linux 5.7.0rlabs x86_64
config.status: 'CORE_COUNT_WANTED=4' 'RATIONAL_NUMBERS_WANTED=y'
'--with-ctrld_del=y' '--with-gtk3'
Archive SVN: 1433
--
assoc_array ← 38 ⎕cr 8
assoc_array["foo"] ← 'foo'
assoc_array["bar"] ← 'bar'
assoc_array[]
===================================================
SEGMENTATION FAULT
thread: 0x7fa518625540
thread_contexts_count: 4
busy_worker_count: 0
active_core_count: 4
thread # 0: 0x7fa518625540 RUN job: 4 PF_lock_unlock_pool
thread # 1: 0x7fa518621700 RUN job: 4 PF_lock_unlock_pool
thread # 2: 0x7fa517e20700 RUN job: 4 PF_lock_unlock_pool
thread # 3: 0x7fa51761f700 RUN job: 4 PF_lock_unlock_pool
----------------------------------------
-- Stack trace at main.cc:95
----------------------------------------
0x7FA51A2AC09B __libc_start_main
0x55AB89F4ED55 main
0x55AB8A0D36F5 Workspace::immediate_execution(bool)
0x55AB89FB57D1 Command::process_line()
0x55AB89FB61F5 Command::do_APL_expression(UCS_string&)
0x55AB89FB586A Command::finish_context()
0x55AB89FC0DF7 Executable::execute_body() const
0x55AB8A077080 StateIndicator::run()
0x55AB89FF8544 Prefix::reduce_statements()
0x55AB89FF426F Prefix::reduce_A_C__()
0x55AB8A0CD9DF Value::index(Value_P) const
0x55AB8A0B0400 UCS_string::UCS_string(Value const&)
0x7FA51A8D4730
0x55AB89F562B5
========================================
====================================================
Goodbye.
Session duration: 15.6931 seconds