=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for balance-tui-0.1.1
   Compiling autocfg v1.1.0
   Compiling libc v0.2.137
   Compiling cfg-if v1.0.0
   Compiling proc-macro2 v1.0.47
   Compiling unicode-ident v1.0.5
   Compiling quote v1.0.21
   Compiling once_cell v1.16.0
   Compiling syn v1.0.105
   Compiling memchr v2.5.0
   Compiling log v0.4.17
   Compiling bitflags v1.3.2
   Compiling parking_lot_core v0.9.5
   Compiling scopeguard v1.1.0
   Compiling smallvec v1.10.0
   Compiling signal-hook v0.3.14
   Compiling lazy_static v1.4.0
   Compiling cc v1.0.77
   Compiling pin-project-lite v0.2.9
   Compiling thiserror v1.0.37
   Compiling gimli v0.26.2
   Compiling adler v1.0.2
   Compiling rawpointer v0.2.1
   Compiling eyre v0.6.8
   Compiling minimal-lexical v0.2.1
   Compiling owo-colors v3.5.0
   Compiling indenter v0.3.3
   Compiling either v1.8.0
   Compiling rustc-demangle v0.1.21
   Compiling mendeleev v0.5.0
   Compiling unicode-width v0.1.10
   Compiling unicode-segmentation v1.10.0
   Compiling cassowary v0.3.0
   Compiling num-traits v0.2.15
   Compiling num-integer v0.1.45
   Compiling lock_api v0.4.9
   Compiling memoffset v0.6.5
   Compiling num-bigint v0.4.3
   Compiling num-iter v0.1.43
   Compiling num-rational v0.4.1
   Compiling tracing-core v0.1.30
   Compiling thread_local v1.1.4
   Compiling sharded-slab v0.1.4
   Compiling backtrace v0.3.66
   Compiling addr2line v0.17.0
   Compiling miniz_oxide v0.5.4
   Compiling matrixmultiply v0.3.2
   Compiling itertools v0.10.5
   Compiling tracing v0.1.37
   Compiling tracing-subscriber v0.3.16
   Compiling signal-hook-registry v1.4.0
   Compiling gethostname v0.2.3
   Compiling object v0.29.0
   Compiling nom v7.1.1
   Compiling mio v0.8.5
   Compiling tracing-error v0.2.0
   Compiling num-complex v0.4.2
   Compiling nix v0.24.3
   Compiling parking_lot v0.12.1
   Compiling color-spantrace v0.2.0
   Compiling ndarray v0.15.6
   Compiling x11rb-protocol v0.10.0
   Compiling signal-hook-mio v0.2.3
   Compiling thiserror-impl v1.0.37
   Compiling bpaf_derive v0.3.3
   Compiling color-eyre v0.6.2
   Compiling x11rb v0.10.1
   Compiling crossterm v0.25.0
   Compiling bpaf v0.7.6
   Compiling num v0.4.0
   Compiling tui v0.19.0
   Compiling arboard v3.2.0
   Compiling chem-eq v0.2.0
error[E0658]: `let...else` statements are unstable
  --> /tmp/biology/balance-tui/work/vendor/chem-eq-0.2.0/src/element.rs:49:9
   |
49 | /         let Some(elm) = ALL_ELEMENTS.iter().find(|n| n.symbol() == sim.name.as_str()) else {
50 | |             return Err(ElementError(sim.name));
51 | |         };
   | |__________^
   |
   = note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information

For more information about this error, try `rustc --explain E0658`.
error: could not compile `chem-eq` due to previous error
*** Error code 101

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/biology/balance-tui
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/biology/balance-tui