build-std feature build failed

[kolapapa]

Problem

Since Xargo is already under maintenance(japaric/xargo#193). I decided to use build-std feature of cargo to build mipsel-unknown-linux-uclibc target program.

But i got error adding symbols: File in wrong format error msg.

Steps

cargo new foo
cd foo
cargo +nightly run -Z build-std --target mipsel-unknown-linux-uclibc

Possible Solution(s)

No response

Notes

compile output:

$ cargo +nightly run -Z build-std --target mipsel-unknown-linux-uclibc

   Compiling compiler_builtins v0.1.49
   Compiling core v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
   Compiling libc v0.2.106
   Compiling cc v1.0.69
   Compiling memchr v2.4.1
   Compiling std v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std)
   Compiling unwind v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/unwind)
   Compiling rustc-std-workspace-core v1.99.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/rustc-std-workspace-core)
   Compiling alloc v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc)
   Compiling cfg-if v0.1.10
   Compiling adler v0.2.3
   Compiling rustc-demangle v0.1.21
   Compiling rustc-std-workspace-alloc v1.99.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/rustc-std-workspace-alloc)
   Compiling panic_unwind v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/panic_unwind)
   Compiling panic_abort v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/panic_abort)
   Compiling gimli v0.25.0
   Compiling std_detect v0.1.5 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/stdarch/crates/std_detect)
   Compiling hashbrown v0.11.0
   Compiling object v0.26.2
   Compiling miniz_oxide v0.4.0
   Compiling addr2line v0.16.0
   Compiling proc_macro v0.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/proc_macro)
   Compiling foo v0.1.0 (/data/rust_workspace/foo)
error: linking with `cc` failed: exit status: 1
  |
  = note: "cc" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.1a4hzan68bep9j92.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.2wcqay994q6xs3pq.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.3c677fcjta18q4ji.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.3d7hpln6qz775wpx.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.41sy0j120dzq9mrs.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.oapiy4nro57lkxf.rcgu.o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.18i2tksk3sd0rbsn.rcgu.o" "-Wl,--as-needed" "-L" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps" "-L" "/data/rust_workspace/foo/target/debug/deps" "-L" "/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/mipsel-unknown-linux-uclibc/lib" "-Wl,--start-group" "-Wl,-Bstatic" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libstd-80a9fa208615b079.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libpanic_unwind-a9529d069cfa8430.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libminiz_oxide-9110ed23ba82c8fb.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libadler-8b7c36eb314e1b14.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libobject-9cd82b4fef58947c.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libmemchr-2671be62cd28f2fb.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libaddr2line-2d376d430ceb1c77.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libgimli-a84b39347109dd0c.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libstd_detect-e6f3db2a819e293f.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/librustc_demangle-c09406e0402c70cc.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libhashbrown-ea33ec131448e881.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/librustc_std_workspace_alloc-227c25845399da55.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libunwind-a764a10c23167268.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libcfg_if-0cfe39d307a3356e.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/liblibc-4a2528752784f319.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/liballoc-c7d0dbbb21c1979a.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/librustc_std_workspace_core-6a374250bd5fc1d2.rlib" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libcore-1b6c7bfc8ca21d19.rlib" "-Wl,--end-group" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/libcompiler_builtins-a9323456d8f48396.rlib" "-Wl,-Bdynamic" "-ldl" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-lutil" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/mipsel-unknown-linux-uclibc/lib" "-o" "/data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
  = note: /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /bin/ld: /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: Relocations in generic ELF (EM: 8)
          /data/rust_workspace/foo/target/mipsel-unknown-linux-uclibc/debug/deps/foo-0cba61ed1ec24885.114eeh9gtatzmrcl.rcgu.o: error adding symbols: File in wrong format
          collect2: error: ld returned 1 exit status


error: could not compile `foo` due to previous error

Version

# cargo version -v
cargo 1.58.0-nightly (2e2a16e98 2021-11-08)
release: 1.58.0
commit-hash: 2e2a16e983f597da62bc132eb191bc3276d4b1bb
commit-date: 2021-11-08
host: x86_64-unknown-linux-gnu
libgit2: 1.3.0 (sys:0.13.23 vendored)
libcurl: 7.79.1-DEV (sys:0.4.50+curl-7.79.1 vendored ssl:OpenSSL/1.1.1l)
os: CentOS 7.0.0 [64-bit]

Some env:
```shell
$ bat ~/.bashrc -pp

export STAGING_DIR=/data/openwrt/staging_dir
export PATH=$PATH:$STAGING_DIR/toolchain-mipsel_24kec+dsp_gcc-4.8-linaro_uClibc-0.9.33.2/bin/
export AR_mipsel_unknown_linux_uclibc=mipsel-openwrt-linux-uclibc-ar
export CC_mipsel_unknown_linux_uclibc=mipsel-openwrt-linux-uclibc-gcc