Install error: use of unstable library feature vec_deque_pop_if #480

$ sudo pgxnclient install vchord
INFO: best version: vchord 1.1.1
INFO: saving /tmp/tmpjx5w99cj/vchord-1.1.1.zip
INFO: unpacking: /tmp/tmpjx5w99cj/vchord-1.1.1.zip
INFO: building extension
cargo run -p xtask -- build

Running `target/debug/xtask build`
Reading "./vchord.control"
Running "/usr/bin/pg_config"
Running "rustc" "--print" "cfg" "--target" "x86_64-unknown-linux-gnu"
Running "cargo" "metadata" "--format-version" "1"
Running PGRX_PG_CONFIG_PATH="/usr/bin/pg_config" "cargo" "rustc" "--crate-type" "cdylib" "-p" "vchord" "--lib" "--profile" "release" "--target" "x86_64-unknown-linux-gnu" "--features" "pg18"

...
   Compiling bitvec v1.0.1
error[E0658]: use of unstable library feature `vec_deque_pop_if`
   --> crates/index/src/prefetcher.rs:294:29
    |
294 |         let e = self.window.pop_front_if(move |x| predicate(x))?;
    |                             ^^^^^^^^^^^^
    |
    = note: see issue #135889 <https://github.com/rust-lang/rust/issues/135889> for more information

For more information about this error, try `rustc --explain E0658`.
error: could not compile `index` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
    Building [====================>    ] 275/321: pgrx-sql-entity-graph, syn, pgrx-pg-sys(build)                                                                                                                                            

Error: "Cargo failed: exit status: 101"
gmake: *** [Makefile:12: build] Error 1
ERROR: command returned 2: gmake PG_CONFIG=/usr/bin/pg_config all