Invalid free() / delete / delete[] / realloc()
at 0x........: free (vg_replace_malloc.c:...)
by 0x........: <rustc_middle::ty::PredicateKind as rustc_middle::ty::fold::TypeFoldable>::fold_with::<rustc_infer::infer::resolve::OpportunisticVarResolver> (demangle-rust.c:13)
by 0x........: rustc_expand::mbe::macro_parser::parse_tt (demangle-rust.c:20)
by 0x........: core::str::lossy::Utf8Lossy::from_bytes (demangle-rust.c:26)
by 0x........: main (demangle-rust.c:31)
Address 0x........ is 0 bytes inside a block of size 4 free'd
at 0x........: free (vg_replace_malloc.c:...)
by 0x........: <rustc_middle::ty::PredicateKind as rustc_middle::ty::fold::TypeFoldable>::fold_with::<rustc_infer::infer::resolve::OpportunisticVarResolver> (demangle-rust.c:12)
by 0x........: rustc_expand::mbe::macro_parser::parse_tt (demangle-rust.c:20)
by 0x........: core::str::lossy::Utf8Lossy::from_bytes (demangle-rust.c:26)
by 0x........: main (demangle-rust.c:31)
Block was alloc'd at
at 0x........: malloc (vg_replace_malloc.c:...)
by 0x........: main (demangle-rust.c:31)
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