libsoup 2.99.9 fails test suite on i586

Just packaged up libsoup 2.99.9 for Tumbleweed (GNOME:Next). Builds fine, and on x86_64 also passes the test suite. But on i586, it fails with:

[  121s]  1/33 date-test                OK              0.04s   66 subtests passed
[  121s]  2/33 coding-test              OK              0.07s   11 subtests passed
[  121s] ▶  3/33 /cache/basics          FAIL          
[  121s] ▶  3/33 /cache/headers         FAIL          
[  121s]  4/33 continue-test            OK              0.08s   12 subtests passed
[  121s]  5/33 cookies-test             OK              0.08s   7 subtests passed
[  121s]  6/33 header-parsing-test      OK              0.04s   8 subtests passed
[  121s] ▶  3/33 /cache/metrics         FAIL          
[  121s]  3/33 cache-test               ERROR           0.15s   exit status 1

Detailed log excerpt:

[  121s] stderr:
[  121s] **
[  121s] ERROR:../tests/cache-test.c:329:do_basics_test: Request for /1 not filled from cache
[  121s] **
[  121s] ERROR:../tests/cache-test.c:364:do_basics_test: Second request for /1 not filled from cache
[  121s] **
[  121s] ERROR:../tests/cache-test.c:637:do_headers_test: Request for /1 not validated
[  121s] **
[  121s] ERROR:../tests/cache-test.c:654:do_headers_test: assertion failed (header_value == "My header NEW value"): ("My header value" == "My header NEW value")
[  121s] **
[  121s] ERROR:../tests/cache-test.c:785:do_metrics_test: 'is_network_stream (stream)' should be FALSE
[  121s] **
[  121s] ERROR:../tests/cache-test.c:786:do_metrics_test: 'soup_message_get_remote_address (msg)' should be NULL
[  121s] **
[  121s] ERROR:../tests/cache-test.c:800:do_metrics_test: assertion failed (soup_message_metrics_get_request_header_bytes_sent (metrics) == 0): (98 == 0)
[  121s] **
[  121s] ERROR:../tests/cache-test.c:803:do_metrics_test: assertion failed (soup_message_metrics_get_response_header_bytes_received (metrics) == 0): (102 == 0)
[  121s] **
[  121s] ERROR:../tests/cache-test.c:804:do_metrics_test: assertion failed (soup_message_metrics_get_response_body_bytes_received (metrics) == 0): (65 == 0)
[  121s] 
[  121s] (test program exited with status code 1)