these 2 derivations will be built: /nix/store/llm4cvzcr2m5g8vwzkqrssq277mk2zim-python3-3.13.15-env.drv /nix/store/k40sdvxjazixv3j9wp7w56k0lkn98d5i-pytest-impure.drv these 6 paths will be fetched (37.1 MiB download, 128.2 MiB unpacked): /nix/store/y5cgjdmf3mw3xdh6hamdgx0v8q0aiffs-python3-3.13.15 /nix/store/9ggq2yrxmdm4vfva4jl2vjqp8q6b1qyd-python3.13-iniconfig-2.3.0 /nix/store/p8lr2myd2nzraljdj5kp6zqf5fmn4qbr-python3.13-packaging-26.2 /nix/store/sdhjvcv2bpcdyi0bxrbxva1kihjwmpl9-python3.13-pluggy-1.6.0 /nix/store/rm6xz2w71wc2xyh4mlsrjblsa96arla3-python3.13-pygments-2.20.0 /nix/store/wl7ia0249hvv8fnpflkirdr4rd76ibv2-python3.13-pytest-9.1.1 Failed to find a machine for remote build! derivation: 4ikxnl6i7448147nnhblaj1lx90vm4i9-pytest-impure.drv required (system, features): (aarch64-darwin, [ca-derivations]) 1 available machines: (systems, maxjobs, supportedFeatures, mandatoryFeatures) ([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], []) error: Cannot build '/nix/store/4ikxnl6i7448147nnhblaj1lx90vm4i9-pytest-impure.drv'. Reason: platform mismatch Required system: 'aarch64-darwin' Current system: 'x86_64-linux' error: build of resolved derivation '/nix/store/4ikxnl6i7448147nnhblaj1lx90vm4i9-pytest-impure.drv' failed