phpinfo() and "php -i" segfaults with 0.15.0

[brettmc]

Running the example from https://docs.rs/phper-doc/latest/phper_doc/_02_quick_start/_01_write_your_first_extension/index.html#steps segfaults with 0.15.0, but not with 0.14.1. gdb backtrace shows that it occurs when printing module.version.

module.version is "0.1.0" and configured as per the example docs:

let mut module = Module::new(
        env!("CARGO_PKG_NAME"),
        env!("CARGO_PKG_VERSION"),
        env!("CARGO_PKG_AUTHORS"),
    );

gdb --args php -d extension=target/debug/libhello.so -i:

<snip>
hello

version => 
Program received signal SIGSEGV, Segmentation fault.
0x000055b2ab21fe0c in ?? ()
(gdb) bt
#0  0x000055b2ab21fe0c in ?? ()
#1  0x000055b2ab220328 in php_info_print_table_row ()
#2  0x00007fad56b3c16c in phper::modules::module_info (zend_module=0x55b2c325cf20) at src/modules.rs:116
#3  0x000055b2ab220cb8 in php_print_info ()
#4  0x000055b2ab6e0435 in ?? ()
#5  0x000055b2ab24d208 in ?? ()
#6  0x00007fad5983ad7a in __libc_start_main (main=0x55b2ab24cf20, argc=4, argv=0x7ffe37b3a1c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe37b3a1b8) at ../csu/libc-start.c:308
#7  0x000055b2ab24d8ca in _start ()

My environment:
php: 8.4.4 (docker php:fpm-8.4-bullseye)
rustc: 1.85.0
llvm-dev is already the newest version (1:11.0-51+nmu5)
libclang-dev is already the newest version (1:11.0-51+nmu5)