I tested the patch on my aarch64 box and with the following patch I was able to start the building process. Currently rust fails its test stage with the error: test result: ok. 193 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out finished in 267.991 Testing libstd stage1 (aarch64-unknown-linux-gnu -> aarch64-unknown-linux-gnu) Compiling libc v0.2.34 Compiling core v0.0.0 (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libcore) Compiling std_unicode v0.0.0 (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libstd_unicode) Compiling rand v0.3.19 Compiling std v0.0.0 (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libstd) Compiling alloc v0.0.0 (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/liballoc) error: unused attribute --> src/libstd/sys/unix/process/process_common.rs:449:5 | 449 | #[ignore] | ^^^^^^^^^ | note: lint level defined here --> src/libstd/lib.rs:232:9 | 232 | #![deny(warnings)] | ^^^^^^^^ = note: #[deny(unused_attributes)] implied by #[deny(warnings)] error: aborting due to previous error error: Could not compile `std`. warning: build failed, waiting for other jobs to finish... error: build failed command did not execute successfully: "/gnu/store/3vvhw5xpbcym5l3xk2pszzzyx4m7k8l6-cargo-bootstrap-0.24.0/bin/cargo" "test" "--target" "aarch64-unknown-linux-gnu" "-j" "6" "--release" "--frozen" "--features" "panic-unwind jemalloc backtrace" "--manifest-p ath" "/tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libstd/Cargo.toml" "-p" "std:0.0.0" "-p" "libc:0.0.0" "-p" "alloc_system:0.0.0" "-p" "panic_abort:0.0.0" "-p" "compiler_builtins:0.0.0" "-p" "alloc:0.0.0" "-p" "std_unicode:0.0.0" "-p" "unwind:0 .0.0" "-p" "core:0.0.0" "--" expected success, got: exit code: 101 failed to run: /tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/build/bootstrap/debug/bootstrap test Build completed unsuccessfully in 1:53:33 phase `check' failed after 6813.3 seconds This is ultimately no different from master, where rust currently fails somewhere during the test stage. -- Efraim Flashner אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted