$ /nix/store/vzx1mi9c0xfadmsm9dhd83d005cb1qs9-coreutils-9.8/bin/timeout --kill-after=15s 7200s /nix/store/86n4l5yri6hys3zk2mwy2azcv9prqb8j-nix-2.31.4/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link git+https://github.com/NorfairKing/validity?ref=master&rev=9d6ca69e9369af1e2a658b37ac9f84d11ef2cbb2#packages.x86_64-linux.genvalidity-network-uri --print-build-logs warning: ignoring untrusted flake configuration setting 'extra-substituters'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'. Pass '--accept-flake-config' to trust it  Downloading cached appar-0.1.8-doc from https://cache.staging.nix-ci.com Downloading cached byteorder-1.0.4-doc from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 1 of 8 downloaded from cache (1 downloading) Downloading cached byteorder from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 2 of 8 downloaded from cache (1 downloading) Downloading cached appar from https://cache.staging.nix-ci.com Downloading cached iproute-1.7.15-doc from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 3 of 8 downloaded from cache (2 downloading) Progress: 0 of 1 built, 4 of 8 downloaded from cache (1 downloading) Progress: 0 of 1 built, 5 of 8 downloaded from cache Downloading cached genvalidity-network-uri-0.1.0.0-doc from https://cache.staging.nix-ci.com Downloading cached iproute from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 6 of 8 downloaded from cache (1 downloading) Progress: 0 of 1 built, 7 of 8 downloaded from cache Downloading cached genvalidity-network-uri from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 8 of 8 downloaded from cache