Hi, I cannot reproduce this failure on a real machine:
❯ uname -a Linux frost 6.12.12-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1 (2025-02-02) x86_64 GNU/Linux ❯ dpkg -l clisp cl-babel Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============================-============-================================================= ii cl-babel 20240605.git23c1440-1 all charset encoding/decoding library for Common Lisp ii clisp 1:2.49.20241228.gitc3ec11b-1 amd64 GNU CLISP, a Common Lisp implementation ❯ mkdir /tmp/lp32 ❯ AUTOPKGTEST_TMP=/tmp/lp32 clisp -norc debian/tests/runtests.lisp 0 errors, 0 warnings ;; Compiling file /usr/share/common-lisp/source/cl-asdf/build/asdf.lisp ... ;; Wrote file /tmp/lp32/usr/share/common-lisp/source/cl-asdf/build/asdf-tmp7RNP2AUZ.fas 0 errors, 666 warnings WARNING: Adding method #<STANDARD-METHOD (#<STANDARD-CLASS TEST-OP> (EQL #<SYSTEM "babel">))> to an already called generic function #<STANDARD-GENERIC-FUNCTION PERFORM> WARNING: Adding method #<STANDARD-METHOD (#<STANDARD-CLASS TEST-OP> (EQL #<SYSTEM "babel">))> to an already called generic function #<STANDARD-GENERIC-FUNCTION OPERATION-DONE-P> 0 errors, 2 warnings WARNING: Adding method #<STANDARD-METHOD (#<STANDARD-CLASS TEST-OP> (EQL #<SYSTEM "trivial-features">))> to an already called generic function #<STANDARD-GENERIC-FUNCTION PERFORM> 0 errors, 1 warning WARNING: Adding method #<STANDARD-METHOD (#<STANDARD-CLASS TEST-OP> (EQL #<SYSTEM "alexandria/tests">))> to an already called generic function #<STANDARD-GENERIC-FUNCTION PERFORM> 0 errors, 1 warning ;; Compiling file /usr/share/common-lisp/source/trivial-features/src/tf-clisp.lisp ... .... ;; Wrote file /tmp/lp32/usr/share/common-lisp/source/babel/src/streams-tmpSX1SE0ZA.fas 0 errors, 0 warnings ❯ echo $? 0 I can only conclude that the autopkgtest machines don't like running clisp programs. I'll prepare a new version of cl-babel which removes the testing as it's very minimalist anyway this won't be a big loss. Best regards, Peter