docker run --rm -i -v /opt/deleteme:/data archivebox/archivebox add < ~/tmp/foo
[i] [2021-07-05 20:13:01] ArchiveBox v0.6.2: archivebox add
    > /data
[+] [2021-07-05 20:13:02] Adding 156589 links to index (crawl depth=0)...
    > Saved verbatim input to sources/1625515982-import.txt
    > Parsed 23649 URLs from input (Generic TXT)
    > Found 3809 new URLs not already in index
[*] [2021-07-05 20:13:55] Writing 3809 links to main index...
Traceback (most recent call last):
  File "/app/archivebox/index/sql.py", line 41, in write_link_to_sql_index
    info["timestamp"] = Snapshot.objects.get(url=link.url).timestamp
  File "/usr/local/lib/python3.9/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 429, in get
    raise self.model.DoesNotExist(
core.models.DoesNotExist: Snapshot matching query does not exist.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 589, in update_or_create
    obj = self.select_for_update().get(**kwargs)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 429, in get
    raise self.model.DoesNotExist(
core.models.DoesNotExist: Snapshot matching query does not exist.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/sqlite3/base.py", line 413, in execute
    return Database.Cursor.execute(self, query, params)
sqlite3.OperationalError: database is locked
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/local/bin/archivebox", line 33, in <module>
    sys.exit(load_entry_point('archivebox', 'console_scripts', 'archivebox')())
  File "/app/archivebox/cli/__init__.py", line 140, in main
    run_subcommand(
  File "/app/archivebox/cli/__init__.py", line 80, in run_subcommand
    module.main(args=subcommand_args, stdin=stdin, pwd=pwd)    # type: ignore
  File "/app/archivebox/cli/archivebox_add.py", line 103, in main
    add(
  File "/app/archivebox/util.py", line 114, in typechecked_function
    return func(*args, **kwargs)
  File "/app/archivebox/main.py", line 602, in add
    write_main_index(links=new_links, out_dir=out_dir)
  File "/app/archivebox/util.py", line 114, in typechecked_function
    return func(*args, **kwargs)
  File "/app/archivebox/index/__init__.py", line 232, in write_main_index
    write_sql_main_index(links, out_dir=out_dir)
  File "/app/archivebox/util.py", line 114, in typechecked_function
    return func(*args, **kwargs)
  File "/app/archivebox/index/sql.py", line 88, in write_sql_main_index
    write_link_to_sql_index(link)
  File "/app/archivebox/util.py", line 114, in typechecked_function
    return func(*args, **kwargs)
  File "/app/archivebox/index/sql.py", line 46, in write_link_to_sql_index
    snapshot, _ = Snapshot.objects.update_or_create(url=link.url, defaults=info)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 594, in update_or_create
    obj, created = self._create_object_from_params(kwargs, params, lock=True)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 610, in _create_object_from_params
    obj = self.create(**params)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 447, in create
    obj.save(force_insert=True, using=self.db)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/base.py", line 753, in save
    self.save_base(using=using, force_insert=force_insert,
  File "/usr/local/lib/python3.9/site-packages/django/db/models/base.py", line 790, in save_base
    updated = self._save_table(
  File "/usr/local/lib/python3.9/site-packages/django/db/models/base.py", line 895, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/base.py", line 933, in _do_insert
    return manager._insert(
  File "/usr/local/lib/python3.9/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 1254, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1397, in execute_sql
    cursor.execute(sql, params)
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python3.9/site-packages/django/db/utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python3.9/site-packages/django/db/backends/sqlite3/base.py", line 413, in execute
    return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: database is locked

ArchiveBox v0.6.2
Cpython Linux Linux-5.10.0-0.bpo.7-amd64-x86_64-with-glibc2.28 x86_64
IN_DOCKER=True DEBUG=False IS_TTY=False TZ=UTC SEARCH_BACKEND_ENGINE=ripgrep
[i] Dependency versions:
 √  ARCHIVEBOX_BINARY     v0.6.2          valid     /usr/local/bin/archivebox                                                   
 √  PYTHON_BINARY         v3.9.5          valid     /usr/local/bin/python3.9                                                    
 √  DJANGO_BINARY         v3.1.10         valid     /usr/local/lib/python3.9/site-packages/django/bin/django-admin.py           
 √  CURL_BINARY           v7.64.0         valid     /usr/bin/curl                                                               
 √  WGET_BINARY           v1.20.1         valid     /usr/bin/wget                                                               
 √  NODE_BINARY           v15.14.0        valid     /usr/bin/node                                                               
 √  SINGLEFILE_BINARY     v0.3.16         valid     /node/node_modules/single-file/cli/single-file                              
 √  READABILITY_BINARY    v0.0.2          valid     /node/node_modules/readability-extractor/readability-extractor              
 √  MERCURY_BINARY        v1.0.0          valid     /node/node_modules/@postlight/mercury-parser/cli.js                         
 √  GIT_BINARY            v2.20.1         valid     /usr/bin/git                                                                
 √  YOUTUBEDL_BINARY      v2021.04.26     valid     /usr/local/bin/youtube-dl                                                   
 √  CHROME_BINARY         v90.0.4430.93   valid     /usr/bin/chromium                                                           
 √  RIPGREP_BINARY        v0.10.0         valid     /usr/bin/rg                                                                 
[i] Source-code locations:
 √  PACKAGE_DIR           22 files        valid     /app/archivebox                                                             
 √  TEMPLATES_DIR         3 files         valid     /app/archivebox/templates                                                   
 -  CUSTOM_TEMPLATES_DIR  -               disabled                                                                              
[i] Secrets locations:
 -  CHROME_USER_DATA_DIR  -               disabled                                                                              
 -  COOKIES_FILE          -               disabled                                                                              
[i] Data locations:
 √  OUTPUT_DIR            7 files         valid     /data                                                                       
 √  SOURCES_DIR           4 files         valid     ./sources                                                                   
 √  LOGS_DIR              1 files         valid     ./logs                                                                      
 √  ARCHIVE_DIR           8 files         valid     ./archive                                                                   
 √  CONFIG_FILE           136.0 Bytes     valid     ./ArchiveBox.conf                                                           
 √  SQL_INDEX             3.6 MB          valid     ./index.sqlite3