Reproducible Arch Linux?!

repository	all source packages	reproducible	unreproducible	failing to build	in depwait state	download problems	unknown state
core	200	189 (94.5%)	4 (2.0%)	4 (2.0%)	0	3 (1.5%)	0
extra	2220	2004 (90.2%)	73 (3.2%)	104 (4.6%)	3 (.1%)	33 (1.4%)	3 (.1%)
multilib	255	214 (83.9%)	6 (2.3%)	27 (10.5%)	0	8 (3.1%)	0
community	7765	6021 (77.5%)	248 (3.1%)	1314 (16.9%)	17 (.2%)	149 (1.9%)	16 (.2%)
all combined	10440	8428 (80.7%)	331 (3.1%)	1449 (13.8%)	20 (.1%)	193 (1.8%)	19 (.1%)

4 packages in core in FTBR state

repository	source package	version	test result	test date test duration	1st build log 2nd build log
core	linux-lts	5.10.69-1	linux-lts-5.10.69-1-x86_64.pkg.tar.zst is unreproducible linux-lts-docs-5.10.69-1-x86_64.pkg.tar.zst is unreproducible with variations in .BUILDINFO linux-lts-headers-5.10.69-1-x86_64.pkg.tar.zst is unreproducible	2021-09-27 10:27 3h:52m:49s	build1.log (1498K) build2.log (1498K)
core	linux	5.14.8.arch1-1	linux-5.14.8.arch1-1-x86_64.pkg.tar.zst is unreproducible linux-docs-5.14.8.arch1-1-x86_64.pkg.tar.zst is unreproducible linux-headers-5.14.8.arch1-1-x86_64.pkg.tar.zst is unreproducible	2021-09-27 14:00 4h:30m:28s	build1.log (4641K) build2.log (4641K)
core	python	3.9.7-1	python-3.9.7-1-x86_64.pkg.tar.zst is unreproducible python-tests-3.9.7-1-x86_64.pkg.tar.zst is unreproducible	2021-09-24 20:52 1h:54m:53s	build1.log (2363K) build2.log (2357K)
core	linux-firmware	20210919.d526e04-1	amd-ucode-20210919.d526e04-1-any.pkg.tar.zst is reproducible in our current test framework linux-firmware-20210919.d526e04-1-any.pkg.tar.zst is unreproducible	2021-09-27 14:21 0h:15m:6s	build1.log (6K) build2.log (6K)