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tools.ci-farm: don't cache narinfo misses on the runners
Worker 2 of the first run had looked up paths before other builders pushed them, and its nix-daemon kept answering from the negative cache (1 h by default): 1118 'input not substitutable' retries until the machines failed.
author
lassulus
date
(Oct 11, 2026, 8:52 PM CEST)
commit
e2a79fac
e2a79fac15d272ef7412c90f64da0d30781d4a02
parent
422ce325
422ce3251eec1e508ca9d4ec193198efe18770e8
+5
+5
.github/workflows/farm.yml
+5
.github/workflows/farm.yml
···
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trusted-users = root runner
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extra-substituters = https://cache.lassul.us
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extra-trusted-public-keys = cache.lassul.us-1:aOMEO5TU6eLvhyPi0jmgjR2sVlGjMq3rK0MeACjTcQ0=
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# Builders need each other's outputs as soon as they are pushed;
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# a remembered miss (default: 1 h) fails the build instead.
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narinfo-cache-negative-ttl = 0
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- run: nix build -L .#ci-farm -o ci-farm
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- name: build ${{ env.MACHINES }}
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env:
···
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trusted-users = root runner
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extra-substituters = https://cache.lassul.us
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extra-trusted-public-keys = cache.lassul.us-1:aOMEO5TU6eLvhyPi0jmgjR2sVlGjMq3rK0MeACjTcQ0=
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# see the farm job
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narinfo-cache-negative-ttl = 0
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- run: nix build -L .#ci-farm -o ci-farm
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- env:
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FARM_KEY: ${{ secrets.FARM_KEY }}