pkgsrc current rust build failure NetBSD 9-STABLE/i386

[Mike Pumford <mpumford%mudcovered.org.uk@localhost>]

Failing with:

/work/.buildlink/share/pkgconfig 
PKG_CONFIG_LOG=/comp/obj/pkgsrc/lang/rust/work/.pkg-config.log 
PKG_CONFIG_PATH= KRB5_CONFIG=/usr/bin/krb5-config 
CWRAPPERS_CONFIG_DIR=/comp/obj/pkgsrc/lang/rust/work/.cwrapper/config 
sh -c "if [ \"build\" = \"dist\" ]; then  unset DESTDIR;  fi; 
/usr/pkg/bin/python3.7 ./x.py -v build -j 1"
running: /comp/obj/pkgsrc/lang/rust/work/rust-bootstrap/bin/cargo build 
--manifest-path 
/comp/obj/pkgsrc/lang/rust/work/rustc-1.44.1-src/src/bootstrap/Cargo.toml 
--frozen
/comp/obj/pkgsrc/lang/rust/work/rust-bootstrap/bin/cargo: Shared object 
"libssl.so.1.1" not found
Traceback (most recent call last):

An up to date compat80 package is installed but at a guess this won't 
provide a libssl.so.1.1 as thats the version produced by the 8.x pkgsrc 
openssl package.

Any idea how to satisfy this dependency or can we no longer use 8.x 
bootstraps for 9.x. The amd64 build I do is getting away with this as it 
is currently defaulting to rust-bin. Is that needed for i386 on 9.x as well?

This is clean chroot environment created freshly for the build.

Mike