* Package:    dev-lang/rust-1.50.0
 * Repository: gentoo
 * Maintainer: gyakovlev@gentoo.org rust@gentoo.org
 * USE:        arm64 elibc_musl kernel_linux llvm_targets_AArch64 system-llvm userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
 * Checking for at least 7168 MiB disk space at "/var/tmp/portage/dev-lang/rust-1.50.0/temp" ...
 [ ok ]
 * Using python3.9 to build
>>> Unpacking source...
>>> Unpacking rustc-1.50.0-src.tar.xz to /var/tmp/portage/dev-lang/rust-1.50.0/work
>>> Unpacking rust-1.49.0-aarch64-unknown-linux-gnu.tar.xz to /var/tmp/portage/dev-lang/rust-1.50.0/work
>>> Source unpacked in /var/tmp/portage/dev-lang/rust-1.50.0/work
>>> Preparing source in /var/tmp/portage/dev-lang/rust-1.50.0/work/rustc-1.50.0-src ...
/var/tmp/portage/dev-lang/rust-1.50.0/temp/environment: line 3871: /var/tmp/portage/dev-lang/rust-1.50.0/work/rust-1.49.0-aarch64-unknown-linux-musl/install.sh: No such file or directory
 * ERROR: dev-lang/rust-1.50.0::gentoo failed (prepare phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 125:  Called src_prepare
 *   environment, line 3871:  Called die
 * The specific snippet of code:
 *           "${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig --destdir="${rust_stage0_root}" --prefix=/ || die;
 * 
 * If you need support, post the output of `emerge --info '=dev-lang/rust-1.50.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-lang/rust-1.50.0::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/dev-lang/rust-1.50.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-lang/rust-1.50.0/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-lang/rust-1.50.0/work/rustc-1.50.0-src'
 * S: '/var/tmp/portage/dev-lang/rust-1.50.0/work/rustc-1.50.0-src'