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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Netlify preview builds silently fail with `Deploy Preview canceled`","articleBody":"I noticed that `netlify/python-cpython-preview/deploy-preview` stopped publishing previews at least three weeks ago (somewhere around gh-102712; after-merge comments make sorting PRs by `Recently updated` imprecise).\r\n\r\nClicking on `Details` of the check opens a log [like this](https://app.netlify.com/sites/python-cpython-preview/deploys/643d64bb97407400075ed5d9):\r\n\r\n```\r\n7:24:47 PM: build-image version: 91488c6c0412f5c1c00fb34eff5c1fc41a32bce9 (focal)\r\n7:24:47 PM: buildbot version: 91488c6c0412f5c1c00fb34eff5c1fc41a32bce9\r\n7:24:47 PM: Fetching cached dependencies\r\n7:24:47 PM: Starting to download cache of 449.0MB\r\n7:24:51 PM: Finished downloading cache in 4.02s\r\n7:24:51 PM: Starting to extract cache\r\n7:24:53 PM: Finished extracting cache in 1.442s\r\n7:24:53 PM: Finished fetching cache in 5.545s\r\n7:24:53 PM: Starting to prepare the repo for build\r\n7:24:53 PM: Preparing Git Reference pull/103591/head\r\n7:24:54 PM: Parsing package.json dependencies\r\n7:24:55 PM: Different build dir detected, going to use the one specified in the Netlify configuration file: 'Doc' versus 'Doc/' in the Netlify UI\r\n7:24:55 PM: Different publish path detected, going to use the one specified in the Netlify configuration file: 'Doc/build/html' versus 'build/html' in the Netlify UI\r\n7:24:55 PM: Detected ignore command in Netlify configuration file. Proceeding with the specified command: 'git diff --quiet $CACHED_COMMIT_REF $COMMIT_REF . ../netlify.toml'\r\n7:24:55 PM: User-specified ignore command returned exit code 0. Returning early from build.\r\n7:24:55 PM: Failed during stage 'checking build content for changes': Canceled build due to no content change\r\n7:24:55 PM: Finished processing build request in 8.136s\r\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-103605\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/arhadthedev","@type":"Person","name":"arhadthedev"},"datePublished":"2023-04-18T05:10:20.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/103604/cpython/issues/103604"}