[gentoo-user] new installation - ERROR: dev-lang/rust-1.47.0-r2::gentoo failed (compile phase)

[thelma@sys-concept.com]

Reinstalling Gentoo on one box (I wiped the root partition, so it is a clean install) and I'm getting this error

* ERROR: dev-lang/rust-1.47.0-r2::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 125:  Called src_compile
 *   environment, line 3644:  Called die
 * The specific snippet of code:
 *       env $(cat "${S}"/config.env) RUST_BACKTRACE=1 "${EPYTHON}" ./x.py dist -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die )
 * 
 * If you need support, post the output of `emerge --info '=dev-lang/rust-1.47.0-r2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-lang/rust-1.47.0-r2::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/dev-lang/rust-1.47.0-r2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-lang/rust-1.47.0-r2/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src'
 * S: '/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src'

tail  /var/tmp/portage/dev-lang/rust-1.47.0-r2/temp/build.log

expected success, got: exit code: 101
      < ToolBuild { compiler: Compiler { stage: 1, host: TargetSelection { triple: "x86_64-unknown-linux-gnu", file: None } }, target: TargetSelection { triple: "x86_64-unknown-linux-gnu", file: None }, tool: "rls", path: "src/tools/rls", mode: ToolRustc, is_optional_tool: true, source_type: Submodule, extra_features: ["clippy"] }
    < Rls { compiler: Compiler { stage: 1, host: TargetSelection { triple: "x86_64-unknown-linux-gnu", file: None } }, target: TargetSelection { triple: "x86_64-unknown-linux-gnu", file: None }, extra_features: [] }
thread 'main' panicked at 'Unable to build RLS', src/bootstrap/dist.rs:66:9
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1076
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1537
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:198
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:217
  10: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:526
  11: rust_begin_unwind
             at src/libstd/panicking.rs:437
  12: std::panicking::begin_panic_fmt
             at src/libstd/panicking.rs:391
  13: bootstrap::dist::missing_tool
             at src/bootstrap/dist.rs:66
  14: <bootstrap::dist::Rls as bootstrap::builder::Step>::run::{{closure}}
             at src/bootstrap/dist.rs:1308
  15: core::option::Option<T>::or_else
             at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libcore/option.rs:763
  16: <bootstrap::dist::Rls as bootstrap::builder::Step>::run
             at src/bootstrap/dist.rs:1305
  17: bootstrap::builder::Builder::ensure
             at src/bootstrap/builder.rs:1414
  18: <bootstrap::dist::Extended as bootstrap::builder::Step>::run
             at src/bootstrap/dist.rs:1763
  19: bootstrap::builder::Builder::ensure
             at src/bootstrap/builder.rs:1414
  20: <bootstrap::dist::Extended as bootstrap::builder::Step>::make_run
             at src/bootstrap/dist.rs:1745
  21: bootstrap::builder::StepDescription::maybe_run
             at src/bootstrap/builder.rs:189
  22: bootstrap::builder::StepDescription::run
             at src/bootstrap/builder.rs:211
  23: bootstrap::builder::Builder::run_step_descriptions
             at src/bootstrap/builder.rs:597
  24: bootstrap::builder::Builder::execute_cli
             at src/bootstrap/builder.rs:588
  25: bootstrap::Build::build
             at src/bootstrap/lib.rs:488
  26: bootstrap::main
             at src/bootstrap/bin/main.rs:15
  27: std::rt::lang_start::{{closure}}
             at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
  28: std::rt::lang_start_internal::{{closure}}
             at src/libstd/rt.rs:52
  29: std::panicking::try::do_call
             at src/libstd/panicking.rs:348
  30: std::panicking::try
             at src/libstd/panicking.rs:325
  31: std::panic::catch_unwind
             at src/libstd/panic.rs:394
  32: std::rt::lang_start_internal
             at src/libstd/rt.rs:51
  33: std::rt::lang_start
             at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
  34: main
  35: __libc_start_main
  36: _start
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Traceback (most recent call last):
  File "./x.py", line 11, in <module>
    bootstrap.main()
  File "/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py", line 1009, in main
    bootstrap(help_triggered)
  File "/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py", line 995, in bootstrap
    run(args, env=env, verbose=build.verbose)
  File "/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py", line 143, in run
    raise RuntimeError(err)
RuntimeError: failed to run: /var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src/build/bootstrap/debug/bootstrap dist -vv --config=/var/tmp/portage/dev-lang/rust-1.47.0-r2/work/rustc-1.47.0-src/config.toml -j8
 * ERROR: dev-lang/rust-1.47.0-r2::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 125:  Called src_compile
 *   environment, line 3644:  Called die
 * The specific snippet of code:
 *       env $(cat "${S}"/config.env) RUST_BACKTRACE=1 "${EPYTHON}" ./x.py dist -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die )

-- 
Thelma