Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
libarena-e95883e162f067ff.so()(64bit)
libfmt_macros-1757a199a728ddbc.so()(64bit)
libgraphviz-0290ac0d62498217.so()(64bit)
libproc_macro-48a2e75e9cb62b4a.so()(64bit)
librustc-306d804867b7284e.so()(64bit)
librustc_allocator-b5509044e20e6b25.so()(64bit)
librustc_back-06154b4e5889f499.so()(64bit)
librustc_borrowck-2f745faf357d2c44.so()(64bit)
librustc_const_eval-cadd2e0b7251f0ae.so()(64bit)
librustc_const_math-98d8125664a0ae4a.so()(64bit)
librustc_data_structures-2df4e57ef88f6084.so()(64bit)
librustc_driver-f96e6cb336b3060d.so()(64bit)
librustc_errors-5d76f7eba525fb89.so()(64bit)
librustc_incremental-45ddc315b5103b54.so()(64bit)
librustc_lint-fdd85afcba74ed14.so()(64bit)
librustc_llvm-d6e9fbf157b3f888.so()(64bit)
librustc_metadata-6e588e36483eee0f.so()(64bit)
librustc_mir-8a1d48cb0b2290af.so()(64bit)
librustc_passes-9f955da86700bdd2.so()(64bit)
librustc_platform_intrinsics-1e67a71556bf7e3c.so()(64bit)
librustc_plugin-831d59fb4b634c2f.so()(64bit)
librustc_privacy-d7cc65204bf8213f.so()(64bit)
librustc_resolve-8fe35ea3a13587a3.so()(64bit)
librustc_save_analysis-e117a768d7d93c64.so()(64bit)
librustc_trans-45d944d337ea8499.so()(64bit)
librustc_trans_utils-a5b7e0774d3cdf5f.so()(64bit)
librustc_typeck-24b255408a55ae67.so()(64bit)
libserialize-54b54e4721c9edd5.so()(64bit)
libstd-8eeda694d27cc3ba.so()(64bit)
libsyntax-33003e7779294b9c.so()(64bit)
libsyntax_ext-f99198f0783d70e3.so()(64bit)
libsyntax_pos-5f654d92996e81e5.so()(64bit)
libterm-299a16466a0b75d9.so()(64bit)
libtest-11e1e13b3e871fa5.so()(64bit)
rustc-bootstrap
rustc-bootstrap-1_21
rustc-bootstrap-1_21(x86-64)

Requires :

/bin/sh
/sbin/ldconfig
/sbin/ldconfig
ld-linux-x86-64.so.2()(64bit)
ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
libarena-e95883e162f067ff.so()(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.3.2)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libdl.so.2()(64bit)
libdl.so.2(GLIBC_2.2.5)(64bit)
libfmt_macros-1757a199a728ddbc.so()(64bit)
libgcc_s.so.1()(64bit)
libgcc_s.so.1(GCC_3.0)(64bit)
libgcc_s.so.1(GCC_3.3)(64bit)
libgcc_s.so.1(GCC_4.2.0)(64bit)
libgraphviz-0290ac0d62498217.so()(64bit)
libm.so.6()(64bit)
libm.so.6(GLIBC_2.2.5)(64bit)
libproc_macro-48a2e75e9cb62b4a.so()(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0(GLIBC_2.3.2)(64bit)
libpthread.so.0(GLIBC_2.3.3)(64bit)
librt.so.1()(64bit)
librt.so.1(GLIBC_2.2.5)(64bit)
librustc-306d804867b7284e.so()(64bit)
librustc_allocator-b5509044e20e6b25.so()(64bit)
librustc_back-06154b4e5889f499.so()(64bit)
librustc_borrowck-2f745faf357d2c44.so()(64bit)
librustc_const_eval-cadd2e0b7251f0ae.so()(64bit)
librustc_const_math-98d8125664a0ae4a.so()(64bit)
librustc_data_structures-2df4e57ef88f6084.so()(64bit)
librustc_driver-f96e6cb336b3060d.so()(64bit)
librustc_errors-5d76f7eba525fb89.so()(64bit)
librustc_incremental-45ddc315b5103b54.so()(64bit)
librustc_lint-fdd85afcba74ed14.so()(64bit)
librustc_llvm-d6e9fbf157b3f888.so()(64bit)
librustc_metadata-6e588e36483eee0f.so()(64bit)
librustc_mir-8a1d48cb0b2290af.so()(64bit)
librustc_passes-9f955da86700bdd2.so()(64bit)
librustc_platform_intrinsics-1e67a71556bf7e3c.so()(64bit)
librustc_plugin-831d59fb4b634c2f.so()(64bit)
librustc_privacy-d7cc65204bf8213f.so()(64bit)
librustc_resolve-8fe35ea3a13587a3.so()(64bit)
librustc_save_analysis-e117a768d7d93c64.so()(64bit)
librustc_trans-45d944d337ea8499.so()(64bit)
librustc_trans_utils-a5b7e0774d3cdf5f.so()(64bit)
librustc_typeck-24b255408a55ae67.so()(64bit)
libserialize-54b54e4721c9edd5.so()(64bit)
libstd-8eeda694d27cc3ba.so()(64bit)
libsyntax-33003e7779294b9c.so()(64bit)
libsyntax_ext-f99198f0783d70e3.so()(64bit)
libsyntax_pos-5f654d92996e81e5.so()(64bit)
libterm-299a16466a0b75d9.so()(64bit)
libtest-11e1e13b3e871fa5.so()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1

Content of RPM :
/usr/bin/rust-gdb
/usr/bin/rust-lldb
/usr/bin/rustc
/usr/bin/rustdoc
/usr/lib/libarena-e95883e162f067ff.so
/usr/lib/libfmt_macros-1757a199a728ddbc.so
/usr/lib/libgraphviz-0290ac0d62498217.so
/usr/lib/libproc_macro-48a2e75e9cb62b4a.so
/usr/lib/librustc-306d804867b7284e.so
/usr/lib/librustc_allocator-b5509044e20e6b25.so
/usr/lib/librustc_back-06154b4e5889f499.so
/usr/lib/librustc_borrowck-2f745faf357d2c44.so
/usr/lib/librustc_const_eval-cadd2e0b7251f0ae.so
/usr/lib/librustc_const_math-98d8125664a0ae4a.so
/usr/lib/librustc_data_structures-2df4e57ef88f6084.so
/usr/lib/librustc_driver-f96e6cb336b3060d.so
/usr/lib/librustc_errors-5d76f7eba525fb89.so
/usr/lib/librustc_incremental-45ddc315b5103b54.so
/usr/lib/librustc_lint-fdd85afcba74ed14.so
/usr/lib/librustc_llvm-d6e9fbf157b3f888.so
/usr/lib/librustc_metadata-6e588e36483eee0f.so
/usr/lib/librustc_mir-8a1d48cb0b2290af.so
/usr/lib/librustc_passes-9f955da86700bdd2.so
/usr/lib/librustc_platform_intrinsics-1e67a71556bf7e3c.so
/usr/lib/librustc_plugin-831d59fb4b634c2f.so
/usr/lib/librustc_privacy-d7cc65204bf8213f.so
/usr/lib/librustc_resolve-8fe35ea3a13587a3.so
/usr/lib/librustc_save_analysis-e117a768d7d93c64.so
/usr/lib/librustc_trans-45d944d337ea8499.so
/usr/lib/librustc_trans_utils-a5b7e0774d3cdf5f.so
There is 17 files more in these RPM.