pkg/56371: lang/rust fails to bootstrap on NetBSD 9 i386

[nia%pkgsrc.org@localhost]

>Number:         56371
>Category:       pkg
>Synopsis:       lang/rust fails to bootstrap on NetBSD 9 i386
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 22 07:20:00 +0000 2021
>Originator:     nia
>Release:        pkgsrc-current today
>Organization:
The NetBSD Foundation
>Environment:
NetBSD procyon.is 9.2 NetBSD 9.2 (LIBKVER) #0: Tue Jan 19 00:00:00 UTC 2038 root@localhost:/sys/arch/i386/compile/LIBKVER i386
>Description:
=> Bootstrap dependency digest>=20010302: found digest-20190127
===> 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 rust-1.52.1nb4
/usr/sbin/paxctl +am /tmp/work/lang/rust/work/rust-bootstrap/bin/cargo
/usr/sbin/paxctl +am /tmp/work/lang/rust/work/rust-bootstrap/bin/rustc
running: /tmp/work/lang/rust/work/rust-bootstrap/bin/cargo build --manifest-path /tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/Cargo.toml --frozen
error: process didn't exit successfully: `/tmp/work/lang/rust/work/rust-bootstrap/bin/rustc -vV` (exit code: 1)
--- stderr
/tmp/work/lang/rust/work/rust-bootstrap/lib/librustc_driver-12ed1c8e5a734cfb.so: Shared object "libstdc++.so.8" not found

Traceback (most recent call last):
  File "/tmp/work/lang/rust/work/rustc-1.52.1-src/./x.py", line 27, in <module>
    bootstrap.main()
  File "/tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/bootstrap.py", line 1183, in main
    bootstrap(help_triggered)
  File "/tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/bootstrap.py", line 1156, in bootstrap
    build.build_bootstrap()
  File "/tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/bootstrap.py", line 908, in build_bootstrap
    run(args, env=env, verbose=self.verbose)
  File "/tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/bootstrap.py", line 153, in run
    raise RuntimeError(err)
RuntimeError: failed to run: /tmp/work/lang/rust/work/rust-bootstrap/bin/cargo build --manifest-path /tmp/work/lang/rust/work/rustc-1.52.1-src/src/bootstrap/Cargo.toml --frozen
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/lang/rust
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/lang/rust

>How-To-Repeat:

>Fix: