* installing *source* package ‘fcl’ ...
** package ‘fcl’ successfully unpacked and MD5 sums checked
** using staged installation
Using system rustc version: rustc 1.70.0 (90c541806 2023-05-31)
*** Checking if cargo is installed
*** cargo is ok
** libs
using C compiler: ‘Apple clang version 14.0.3 (clang-1403.0.22.14.1)’
using SDK: ‘MacOSX11.3.sdk’
rm -Rf fcl.so entrypoint.o ./rust/.cargo ./rust/target/release/libfcl.a
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c entrypoint.c -o entrypoint.o
# vendoring (Note: to avoid NOTE of "Found the following hidden files and
# directories", .cargo needs to be created here)
if [ "yes" = "yes" ]; then \
	  /usr/bin/tar --extract --xz -f ./rust/vendor.tar.xz -C ./rust && \
	    mkdir -p ./rust/.cargo && \
	    cp ./cargo_vendor_config.toml ./rust/.cargo/config.toml; \
	fi
export LIBRSYS_R_VERSION="4.3.3" && . "/Users/urbanek/.cargo/env" && export CARGO_HOME="/Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/00_pkg_src/fcl/src/.cargo" && cd ./rust && cargo build --lib --release --offline --jobs=1
warning: a `-j` argument was passed to Cargo but Cargo is also configured with an external jobserver in its environment, ignoring the `-j` parameter
   Compiling proc-macro2 v1.0.69
   Compiling unicode-ident v1.0.12
   Compiling libR-sys v0.7.0
   Compiling autocfg v1.1.0
   Compiling paste v1.0.14
   Compiling core-foundation-sys v0.8.4
   Compiling extendr-api v0.7.0
   Compiling iana-time-zone v0.1.57
   Compiling once_cell v1.18.0
   Compiling num-traits v0.2.17
   Compiling quote v1.0.33
   Compiling syn v2.0.38
error[E0428]: the name `R_altrep_Coerce_method_t` is defined multiple times
   --> /Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/00_pkg_src/fcl/src/rust/target/release/build/libR-sys-de9b16e0a549bbcb/out/bindings.rs:594:1
    |
594 | / pub type R_altrep_Coerce_method_t =
595 | |     ::std::option::Option<unsafe extern "C" fn(arg1: SEXP, arg2: ::std::os::raw::c_int) -> SEXP>;
    | |_________________________________________________________________________________________________^ `R_altrep_Coerce_method_t` redefined here
    |
   ::: /Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/00_pkg_src/fcl/src/rust/vendor/libR-sys/src/lib.rs:80:1
    |
80  | / pub type R_altrep_Coerce_method_t =
81  | |     ::std::option::Option<unsafe extern "C" fn(arg1: SEXP, arg2: SEXPTYPE) -> SEXP>;
    | |____________________________________________________________________________________- previous definition of the type `R_altrep_Coerce_method_t` here
    |
    = note: `R_altrep_Coerce_method_t` must be defined only once in the type namespace of this module

error[E0428]: the name `Rf_isS4` is defined multiple times
    --> /Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/00_pkg_src/fcl/src/rust/target/release/build/libR-sys-de9b16e0a549bbcb/out/bindings.rs:1733:5
     |
1733 |     pub fn Rf_isS4(arg1: SEXP) -> Rboolean;
     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Rf_isS4` redefined here
     |
    ::: /Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/00_pkg_src/fcl/src/rust/vendor/libR-sys/src/lib.rs:83:1
     |
83   | pub unsafe fn Rf_isS4(arg1: SEXP) -> Rboolean {
     | --------------------------------------------- previous definition of the value `Rf_isS4` here
     |
     = note: `Rf_isS4` must be defined only once in the value namespace of this module

For more information about this error, try `rustc --explain E0428`.
error: could not compile `libR-sys` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
make: *** [rust/target/release/libfcl.a] Error 101
ERROR: compilation failed for package ‘fcl’
* removing ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.3/fcl.Rcheck/fcl’