$ /nix/store/61685rbaxmpigwi3z23i33sv3jyfl70q-coreutils-9.11/bin/timeout --kill-after=15s 7200s /nix/store/wknkybkzrc16r11vk5vrykh4wmw7a353-nix-2.34.8/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link --print-out-paths git+https://github.com/alphal00p/gammaloop?ref=finite_T_and_mu&rev=72d0f7f47e19896cb1bc4c14541a6c379e82d05a&shallow=1#packages.x86_64-linux.crate-test-dependencies-symbolica-utils --print-build-logs  Downloading cached gammaloop-crate-test-dependencies-2487cdc24b69b833-inputs from https://cache.nix-ci.com Failed to download cached gammaloop-crate-test-dependencies-2487cdc24b69b833-inputs after 9.2s error: unable to download 'https://cache.nix-ci.com/nar/1g0f4fa6bcjxc6v53xq9b2iqkip4p462wmpk842n7hyagsnlvinz.nar.xz': HTTP error 200 (curl error: Stream error in the HTTP/2 framing layer) Progress: 0 of 2 built, 0 of 2 downloaded from cache (1 failed) error: path '/nix/store/dgmvhgzw2ml57n42qkl5h93r5gnmhzbl-gammaloop-crate-test-dependencies-2487cdc24b69b833-inputs' is required, but there is no substituter that can build it error: some references of path '/nix/store/is41d4q9a7jk7wqgssi63sdnb1p2hd18-gammaloop-crate-test-dependencies-2487cdc24b69b833-deps-0.1.0' could not be realised Progress: 0 of 1 built (1 failed), 0 of 2 downloaded from cache (1 failed) error: some substitutes for the outputs of derivation '/nix/store/cpm26x2rjsmvwimfj9zbnk7pnmkv8bzi-gammaloop-crate-test-dependencies-2487cdc24b69b833-deps-0.1.0.drv' failed (usually happens due to networking issues); try '--fallback' to build derivation from source Cannot build '/nix/store/490g0d1y9z5lgjc44f0vb6fr43fpg6vr-nix-ci-artifact-barrier-crate-test-dependencies-symbolica-utils.drv'. Reason: 1 dependency failed. Output paths: /nix/store/v0x6cxm257580h6vz2ay8l8k6qhd7kmb-nix-ci-artifact-barrier-crate-test-dependencies-symbolica-utils Build failed.