cargo pgo instrument
[2025-09-26T10:28:34Z INFO cargo_pgo::pgo::instrument] PGO profile directory will be cleared.
[2025-09-26T10:28:34Z INFO cargo_pgo::pgo::instrument] PGO profiles will be stored into /tmp/tmprvgezrel/Reckless/Reckless-tmp/target/pgo-profiles.
Compiling proc-macro2 v1.0.95
Compiling glob v0.3.2
Compiling unicode-ident v1.0.18
Compiling libc v0.2.175
Compiling prettyplease v0.2.32
Compiling regex-syntax v0.8.5
Compiling minimal-lexical v0.2.1
Compiling clang-sys v1.8.1
Compiling cfg-if v1.0.0
Compiling memchr v2.7.4
Compiling libloading v0.8.6
Compiling quote v1.0.40
Compiling syn v2.0.101
Compiling nom v7.1.3
Compiling regex-automata v0.4.9
Compiling either v1.15.0
Compiling bindgen v0.71.1
Compiling shlex v1.3.0
Compiling itertools v0.13.0
Compiling cexpr v0.6.0
Compiling regex v1.11.1
Compiling rustc-hash v2.1.1
Compiling log v0.4.27
Compiling bitflags v2.9.0
Compiling cc v1.2.22
Compiling reckless v0.9.0-dev (/tmp/tmprvgezrel/Reckless/Reckless-tmp)
[0m[1m[38;5;9merror[E0658][0m[0m[1m: use of unstable library feature `unsigned_is_multiple_of`[0m
[0m [0m[0m[1m[38;5;12m--> [0m[0msrc/misc.rs:47:25[0m
[0m [0m[0m[1m[38;5;12m|[0m
[0m[1m[38;5;12m47[0m[0m [0m[0m[1m[38;5;12m|[0m[0m [0m[0m if sorted.len().is_multiple_of(2) {[0m
[0m [0m[0m[1m[38;5;12m|[0m[0m [0m[0m[1m[38;5;9m^^^^^^^^^^^^^^[0m
[0m [0m[0m[1m[38;5;12m|[0m
[0m [0m[0m[1m[38;5;12m= [0m[0m[1mnote[0m[0m: see issue #128101 <https://github.com/rust-lang/rust/issues/128101> for more information[0m
[0m[1mFor more information about this error, try `rustc --explain E0658`.[0m
error: could not compile `reckless` (bin "reckless") due to 1 previous error
[2025-09-26T10:28:47Z ERROR cargo_pgo::pgo::instrument] PGO instrumentation build has failed.
Cargo finished with an error (101)
make: *** [Makefile:24: rule] Error 1