Hello! Ludovic Courtès writes:
> Hello, > > On berlin, Rust 1.24.1 builds systematically exceed the timeout: > > --8<---------------cut here---------------start------------->8--- > Building stage1 compiler artifacts (x86_64-unknown-linux-gnu -> > x86_64-unknown-linux-gnu) > Compiling arena v0.0.0 > (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libarena) > Compiling rustc_driver v0.0.0 > (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/librustc_driver) > > [...] > > Compiling rls-data v0.14.0 > Compiling rustc_data_structures v0.0.0 > (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/librustc_data_structures) > Compiling flate2 v1.0.1 > Compiling syntax_pos v0.0.0 > (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/libsyntax_pos) > Compiling rustc_errors v0.0.0 > (file:///tmp/guix-build-rust-1.24.1.drv-0/rustc-1.24.1-src/src/librustc_errors) > Compiling backtrace v0.3.4 > guix offload: error: timeout expired while offloading > '/gnu/store/61bd22d9mg3xl260jwddisiahh3kmanj-rust-1.24.1.drv' > --8<---------------cut here---------------end--------------->8--- > > Strangely, the build lasts ~9000 seconds (2.5 hours) on the front-end > node of berlin¹, and the timeout for guix-daemon on berlin is 6h (see > guix-maintenance.git) while the max-silent-time is 1h. > > The build nodes may be slower than the front-end, but still, it seems > unlikely that it would take more than 6h there. (That could happen if > the test suite, which lasts 2.1h, were “embarrassingly parallel”, but > we’re running tests with ‘-j1’.) > > To summarize, there are two problems: > > 1. Rust takes too long to build. What can we do about it? Enable > parallel builds? One thing I suggested in the past was to remove the check phase *only* for rust packages used for bootstrapping. This way we still run the tests for the final rust but not at every step in the chain. Although, I wonder if we're more likely to miss a bug if we do this, I'm not sure. For reference: https://lists.gnu.org/archive/html/guix-patches/2018-11/msg00453.html Thanks, Pierre
