Hi, This package specifies Architecture: any (or a variant of it) but currently FTBFS on arm64, while it is currently building fine on amd64.
If arm64 is not supposed to be supported by this package, it might be better to specify a subset of architectures, see https://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-architecture For reference, a list of packages (and their Architecture field) falling in this category: bcachefs-tools_0.1+git20201025.742dbbdb-1_unstable.log:Architecture: linux-any blastem_0.6.3.3-3_unstable.log:Architecture: any bmtk_0.0+git20201018.018da0a+ds-1_unstable.log:Architecture: any all bochs_2.6.11+dfsg-3_unstable.log:Architecture: any all clippoly_0.11-9_unstable.log:Architecture: any dune-pdelab_2.7~20200605-2_unstable.log:Architecture: any all haskell-xml-html-qq_0.1.0.1-2_unstable.log:Architecture: any all kafs-client_0.5-2_unstable.log:Architecture: any libatomic-queue_0.0+git20201007.df79403-2_unstable.log:Architecture: any libecpint_1.0.2-1_unstable.log:Architecture: any libhmsbeagle_3.1.2+dfsg-8_unstable.log:Architecture: linux-any libsis-base-java_18.09~pre1+git20180928.45fbd31+dfsg-1_unstable.log:Architecture: any all libview_0.6.6-2.1_unstable.log:Architecture: any mecat2_0.0+git20200428.f54c542+ds-2_unstable.log:Architecture: any mes_0.22-5_unstable.log:Architecture: any metabat_2.15-2_unstable.log:Architecture: any mojoshader_0.0~hg1314+dfsg-1.1_unstable.log:Architecture: any ngmlr_0.2.7+dfsg-2_unstable.log:Architecture: any ompl_1.4.2+ds1-6_unstable.log:Architecture: any all python-parasail_1.2.1-1_unstable.log:Architecture: any r-cran-s2_1.0.3-1_unstable.log:Architecture: any rust-generator_0.6.20-2_unstable.log:Architecture: any rust-mach-o-sys_0.1.1-3_unstable.log:Architecture: any scrappie_1.4.2-3_unstable.log:Architecture: any siconos_4.3.0+dfsg-3_unstable.log:Architecture: any sidplay_2.0.9-6_unstable.log:Architecture: any spades_3.13.1+dfsg-2_unstable.log:Architecture: any tinyarray_1.2.3-2_unstable.log:Architecture: any xtpcpp_0.4.9-1_unstable.log:Architecture: any Lucas
