Debugging linker errors

Hi all,

I seem to have an issue where my project is linking to two crates that are incompatible with each other. In particular I get a bunch of undefined references to core when my project depends on both of them. Using each seperatly seems to compile fine.

My question is not so much about the specific bug, but how to debug linker errors in Rust. So far Cargo has done everything for me and I did not need to bother with this...

Here's my build output

error: linking with `cc` failed: exit code: 1
  |
  = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1a8zsziqej8y737o.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1be2zc345l4kbblx.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1ccy2qo6165alq53.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1cr7ph2s610iumjy.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1h27wt5wlrnnj3ge.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1ifn14w3pjplyzij.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1kuh4q78gvaddwpp.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1qzpiij2l8v95rp1.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1v2ek3p7xcwrkogk.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.1xfmtel4cqzgss0d.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.217ez7glovu0uhv6.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.23l8j065s47zvb13.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.28jilbmj3lmqw5tx.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.29vtzlysa3fitl4f.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2avejs96kdf66y98.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2cab2yqrpgukp1up.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2djpdezgi4hsjjjp.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2e2dleydtk0yydi5.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2es8nr08rl9d0jbs.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2ew92nznujyfj4cm.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2g79ywasd2vc2oy3.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2i5woqwfbiku5580.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2jeih3r533xqqjew.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2jfhvb2vobdidujl.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2k36wiuqd1a0fab9.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2ki4plmukg1rjq8g.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2mvt1u76dqtzbrqn.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2n0m1uzeuja969zt.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2ozze3jatd9n8d0b.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2qmb8yt9c35q2ds1.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2ukk910i5osaertd.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2w0a02w2ra4k2rip.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2wo7y7uxc0epbtjw.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.2ys1j1cc1xsn8ec8.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.30u5arql91h25kax.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.31d1gwyjvv8mgfwh.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.326ffzb95y30xegq.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.33i2ih1ahrdj8b7v.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.35j9mr2dqq5j75ii.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3811espqb4q49t7x.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3bk0dio65u0b08wd.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3bvmwbeey6wnxghl.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3c47naw5ajhl74l2.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3edl8wohz6wwekq6.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3j5nomkvt663vcn8.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3p26pa1fper9zop2.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3r57eqy7udet5tx9.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3x3ixgii04pbhzm2.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3xra8t44ogvh9rk9.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3ya7302kifxheqwr.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.3zo5fbettc8k87kp.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.442ur3ugcg1octcm.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.45z83cw9w2hw058r.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.470s2w4zvxjjxfyf.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.47ck8g1crra09zxs.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4b9qesoe9w67k6dc.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4b9qf8vrw8xkx7k9.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4brztu4ljo405xxx.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4c5sf2347rxshbbp.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4cqc9yccpv9pllmq.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4f7jb3gydxmttynx.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4hphwhqrfqguqyz1.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4k07d5lejul7ua1f.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4niyk19vbyvjk9f7.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4owar8rxw7fymn2f.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4quafunyvqhttdit.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4rm7s2gk4acfll3f.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4szqd15822zv839x.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4us41bn2bpahb0nq.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4xuvx981uova9s0m.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4xvreglz0yk9fjti.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.4z4sdy0dqy7shnxt.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.523vy67jxex10wjr.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.53yx03vzp5r39tw2.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.55mvlhur4pwvjcvh.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.55prkf93fpymts5s.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.5at1bojy0p9ebp80.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.5dcc6b56q045p78s.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.5fu226f878s6mweu.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.5fwg8nmr6qes6moe.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.5zableek1g9jai7.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.84xatvkmiqbup7o.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.biznkflfvbczy77.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.cwcs8gjz8ikxhn.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.hvnd4mg8nfglshi.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.ir31f5hb8epk1x6.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.reqv71m9at0p7r9.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.s3yh9tyci3we5sp.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.t2fleqvxt0pahw2.rcgu.o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7.ugzjyaftun19vge.rcgu.o" "-o" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/resnet-691a69e7d51fecd7" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps" "-L" "/home/kai/dev/tvm-vanilla/rust/frontend/examples/resnet" "-L" "/home/kai/dev/tvm-vanilla/rust/target/debug/build/backtrace-sys-4b6c3faec33029a6/out" "-L" "/home/kai/dev/tvm-vanilla/build" "-L" "/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps" "-ltvm_frontend" "-Wl,-Bstatic" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libimage-520bb054348298ba.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libtiff-1b281606e3de126b.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libpng-06388cbfc97e0951.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libdeflate-507527200c22e0f1.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libinflate-befd39f7863c896b.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libadler32-6b7e7b87ee19b4e5.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libbitflags-add8750865ff4dcc.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libjpeg_decoder-9a1365fe042d5693.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/librayon-dd701999adefdc47.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/librayon_core-caddb623343b429e.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnum_cpus-ce92ffe48989180b.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcrossbeam_queue-a756a6b576a54921.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcrossbeam_deque-766832e6ce6a0398.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcrossbeam_epoch-c83cc1e2c707e6a3.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libscopeguard-0076951315d39184.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libmemoffset-f3244a89985f30bc.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcrossbeam_utils-b298b5a0c28e54ce.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libarrayvec-6f9ba77963cef7b8.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnodrop-15622afff8fd3934.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libscoped_threadpool-952a6750f75d9122.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libgif-6383a60641720eca.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcolor_quant-0f15b342b7b79b78.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnum_rational-d05268c26e19e34e.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnum_iter-2d3848e82bd36136.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnum_integer-006a2726c638a19e.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/liblzw-bbb676a83459dba8.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcsv-2cae17f5ab0ca25b.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libryu-1aa8a5e8a14b4762.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libitoa-d864e5ce7f48b871.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcsv_core-57a8a0b7a76c185e.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libbstr-806b7544964f8d1d.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libregex_automata-42b24b4de8b1b8b8.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libbyteorder-2e8a7f03588b2f17.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libmemchr-27e87b693d1906ad.rlib" "/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libserde-ff3bc4588a3583eb.rlib" "-Wl,--start-group" "-L" "/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bdynamic" "-lstd-2d960816227c2f17" "-Wl,--end-group" "-Wl,-Bstatic" "/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-916c11a818639f9e.rlib" "-Wl,-Bdynamic" "-ltvm_runtime" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
  = note: /usr/bin/ld: /home/kai/dev/tvm-vanilla/rust/target/debug/deps/libimage-520bb054348298ba.rlib(image-520bb054348298ba.image.76q0xccs-cgu.13.rcgu.o): in function `<core::str::Chars as core::iter::traits::iterator::Iterator>::next':
          /rustc/2d1a551e144335e0d60a637d12f410cf65849876/src/libcore/str/mod.rs:568: undefined reference to `core::str::next_code_point'
          /usr/bin/ld: /rustc/2d1a551e144335e0d60a637d12f410cf65849876/src/libcore/str/mod.rs:568: undefined reference to `core::option::Option<T>::map'
          /usr/bin/ld: /home/kai/dev/tvm-vanilla/rust/target/debug/deps/libtiff-1b281606e3de126b.rlib(tiff-1b281606e3de126b.tiff.1yo1rg1w-cgu.6.rcgu.o): in function `<core::str::Chars as core::iter::traits::iterator::Iterator>::next':
          /rustc/2d1a551e144335e0d60a637d12f410cf65849876/src/libcore/str/mod.rs:568: undefined reference to `core::str::next_code_point'
          /usr/bin/ld: /rustc/2d1a551e144335e0d60a637d12f410cf65849876/src/libcore/str/mod.rs:568: undefined reference to `core::option::Option<T>::map'
          /usr/bin/ld: /home/kai/dev/tvm-vanilla/rust/target/debug/deps/libpng-06388cbfc97e0951.rlib(png-06388cbfc97e0951.png.8d9to288-cgu.2.rcgu.o): in function `png::utils::expand_trns_line':
          /home/kai/.cargo/registry/src/github.com-1ecc6299db9ec823/png-0.12.0/src/utils.rs:45: undefined reference to `core::cmp::impls::<impl core::cmp::PartialEq<&B> for &A>::eq'
          /usr/bin/ld: /home/kai/dev/tvm-vanilla/rust/target/debug/deps/libpng-06388cbfc97e0951.rlib(png-06388cbfc97e0951.png.8d9to288-cgu.2.rcgu.o): in function `png::utils::expand_trns_line16':
          /home/kai/.cargo/registry/src/github.com-1ecc6299db9ec823/png-0.12.0/src/utils.rs:65: undefined reference to `core::cmp::impls::<impl core::cmp::PartialEq<&B> for &A>::eq'
          /usr/bin/ld: /home/kai/dev/tvm-vanilla/rust/target/debug/deps/libnum_rational-d05268c26e19e34e.rlib(num_rational-d05268c26e19e34e.num_rational.agc04qai-cgu.1.rcgu.o): in function `<f32 as num_traits::cast::ToPrimitive>::to_u8':
          /home/kai/.cargo/registry/src/github.com-1ecc6299db9ec823/num-traits-0.2.8/src/cast.rs:309: undefined reference to `core::mem::size_of'
          collect2: error: ld returned 1 exit status
          

error: aborting due to previous error

error: Could not compile `resnet`.

Caused by:
  process didn't exit successfully: `rustc --crate-name resnet frontend/examples/resnet/src/main.rs --color always --crate-type bin --emit=dep-info,link -C debuginfo=2 -C metadata=691a69e7d51fecd7 -C extra-filename=-691a69e7d51fecd7 --out-dir /home/kai/dev/tvm-vanilla/rust/target/debug/deps -C incremental=/home/kai/dev/tvm-vanilla/rust/target/debug/incremental -L dependency=/home/kai/dev/tvm-vanilla/rust/target/debug/deps --extern csv=/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libcsv-2cae17f5ab0ca25b.rlib --extern image=/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libimage-520bb054348298ba.rlib --extern ndarray=/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libndarray-58b36276fc1f4fa7.rlib --extern tvm_frontend=/home/kai/dev/tvm-vanilla/rust/target/debug/deps/libtvm_frontend.so -L native=/home/kai/dev/tvm-vanilla/rust/frontend/examples/resnet -L native=/home/kai/dev/tvm-vanilla/rust/target/debug/build/backtrace-sys-4b6c3faec33029a6/out -L /home/kai/dev/tvm-vanilla/build` (exit code: 1)

Things I have tried so far:

  • Reinstall rust using rustup
  • Try on a different computer (same results)

Thank you!

I've had this issue before I spent two days trying to figure it out :dizzy_face:. I used the linux nm -C -u path/to/file.so command although this might be more helpful llvm-tools as it is rust specific.

Thanks for the hint. How do I know if two symbols that my libraries link to are conflicting? I'm not entirely sure what the hexcode means that is behind the function signature in llvm-nm's output

The thing that is confusing me the most is that there seems to be only a single libcore on my system. Rust always links to libcore, right?

kai@bravos ~/d/t/rust> find ~/.rustup -name "libcore*"
/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/share/doc/rust/html/edition-guide/rust-2018/platform-and-target-support/libcore-for-low-level-rust.html
/home/kai/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-6d9f294ab10b95af.rlib

Could my LIBRARY_PATH maybe be incorrect?

Looks similar to this one: https://github.com/rust-lang/rust/issues/63555

1 Like

Thanks!

I think it might be a compiler bug. I tried an older toolchain nightly-2019-05-01-x86_64-unknown-linux-gnu and it seems to compile fine.