Seen on current master.
Tentatively traced back to commit 2095df7b ("Add Add_() inner function, fix Add() return semantics") of PR #23380 merged in 994aaaa8.
$ src/test/test_bitcoin -t addrman_tests -l error
Running 20 test cases...
test/addrman_tests.cpp(188): error: in "addrman_tests/addrman_simple": check !addrman->Add({CAddress(addr1_dup, NODE_NONE)}, source) has failed
test/addrman_tests.cpp(236): error: in "addrman_tests/addrman_ports": check addr_ret3.ToString() == "250.1.1.1:8333" has failed [250.1.1.1:8334 != 250.1.1.1:8333]
test/addrman_tests.cpp(259): error: in "addrman_tests/addrman_select": check addr_ret2.ToString() == "[::]:0" has failed [250.1.1.1:8333 != [::]:0]
test_bitcoin: addrman.cpp:943: void AddrManImpl::Check() const: Assertion `false' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_select": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(289): last checkpoint
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_new_collisions": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(299): last checkpoint: "addrman_new_collisions" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_tried_collisions": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(328): last checkpoint: "addrman_tried_collisions" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_find": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(358): last checkpoint: "addrman_find" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_create": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(391): last checkpoint: "addrman_create" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_delete": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(411): last checkpoint: "addrman_delete" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_getaddr": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(431): last checkpoint: "addrman_getaddr" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/caddrinfo_get_tried_bucket_legacy": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(491): last checkpoint: "caddrinfo_get_tried_bucket_legacy" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/caddrinfo_get_new_bucket_legacy": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(546): last checkpoint: "caddrinfo_get_new_bucket_legacy" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/caddrinfo_get_tried_bucket": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(624): last checkpoint: "caddrinfo_get_tried_bucket" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/caddrinfo_get_new_bucket": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(679): last checkpoint: "caddrinfo_get_new_bucket" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_serialization": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(759): last checkpoint: "addrman_serialization" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/remove_invalid": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(824): last checkpoint: "remove_invalid" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_selecttriedcollision": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(865): last checkpoint: "addrman_selecttriedcollision" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_noevict": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(897): last checkpoint: "addrman_noevict" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/addrman_evictionworks": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(953): last checkpoint: "addrman_evictionworks" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/load_addrman": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(1007): last checkpoint: "load_addrman" fixture ctor
test_bitcoin: util/system.cpp:656: void ArgsManager::AddArg(const std::string &, const std::string &, unsigned int, const OptionsCategory &): Assertion `ret.second' failed.
unknown location(0): fatal error: in "addrman_tests/load_addrman_corrupted": signal: SIGABRT (application abort requested)
test/addrman_tests.cpp(1052): last checkpoint: "load_addrman_corrupted" fixture ctor
*** 21 failures are detected in the test module "Bitcoin Core Test Suite"