fix(fuzz): drop glob_fuzz inputs that contain banned debug shapes#1621
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fix(fuzz): drop glob_fuzz inputs that contain banned debug shapes#1621
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Inputs are inlined into ls/case/[[ ]] commands; an unmatched path is
echoed verbatim by the shell, so a user-supplied 'Span {' tripped
TM-INF-022 even though no internal Debug formatter ran. Filter at the
fuzz-input layer keeps the leak detector strict on real internals.
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Summary
The nightly fuzz job on main is red.
glob_fuzzinlines fuzz input directlyinto
ls /tmp/{input},case ... in {input}), and[[ ... == {input} ]],so any unmatched path is echoed verbatim by the shell/
lsin stderr.Last run: input
==(Span {(;producedls: cannot access '/tmp/==(Span {(;',which contains the banned
Span {shape — but no internal Debug formatter ran,this is real-shell-style stderr.
Fix: at the fuzz-input layer, drop inputs that already contain any
UNIVERSAL_BANNEDsubstring. This keeps TM-INF-022 detection strict on realbuiltin internals while removing the false-positive class.
Test plan
cargo checkon the fuzz crate compiles cleanlyFuzz Testingon this branch and confirmglob_fuzzjob is greenGenerated by Claude Code