$ /nix/store/wkkwxc04gdw6b263l1h29pjarjnjdyb6-coreutils-9.8/bin/timeout --kill-after=15s 1800s /nix/store/vnjf0zi1lbln0srm2z743j70kjav76ln-nix-2.34.4/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes build --no-link git+https://github.com/sellout/flaky-environments?ref=haskell-updates&rev=0b10256383588b2051bd6b74c9d582cbe9659b45#devShells.x86_64-linux.dhall --print-build-logs warning: ignoring untrusted flake configuration setting 'allow-import-from-derivation'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-experimental-features'. Pass '--accept-flake-config' to trust it 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 warning: ignoring untrusted flake configuration setting 'sandbox'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'use-registries'. Pass '--accept-flake-config' to trust it evaluation warning: 'system' has been renamed to/replaced by 'stdenv.hostPlatform.system' these 3 paths will be fetched (3.6 MiB download, 23.1 MiB unpacked): /nix/store/sps3vl3fk8rf978li16pnwrm24s9ys5s-dhall-1.42.3 /nix/store/a5dw5ahvlyymp1zy3nf8rg85vif332cl-dhall-docs-1.0.12 /nix/store/mmpp3akjcmd6456mbl70fwrhzsxdwxrl-nix-shell copying path '/nix/store/sps3vl3fk8rf978li16pnwrm24s9ys5s-dhall-1.42.3' from 'https://cache.nix-ci.com'... copying path '/nix/store/a5dw5ahvlyymp1zy3nf8rg85vif332cl-dhall-docs-1.0.12' from 'https://cache.nix-ci.com'... copying path '/nix/store/mmpp3akjcmd6456mbl70fwrhzsxdwxrl-nix-shell' from 'https://cache.nix-ci.com'...