cross build --target x86_64-pc-windows-gnu missing synchronization library

[mcarson-sandia]

Checklist

• I've looked through the issues and pull requests for similar reports

Describe your issue

I am unable to cross compile for windows on the 1.78.0 nightly due to the following error (it also occurs on new cargo init project).

➜ cross-test git:(master) ✗ cross build --target x86_64-pc-windows-gnu --release Compiling cross-test v0.1.0 (/project) error: linking withx86_64-w64-mingw32-gcc` failed: exit status: 1
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= note: LC_ALL="C" PATH="/rust/lib/rustlib/x86_64-unknown-linux-gnu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/rust/bin" VSLANG="1033" "x86_64-w64-mingw32-gcc" "-fno-use-linker-plugin" "-Wl,--dynamicbase" "-Wl,--disable-auto-image-base" "-m64" "-Wl,--high-entropy-va" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/rsbegin.o" "/tmp/rustcjyWv8U/symbols.o" "/target/x86_64-pc-windows-gnu/release/deps/cross_test-451dd26ad7f599f1.cross_test.a1c4cb6c121cfa17-cgu.0.rcgu.o" "/target/x86_64-pc-windows-gnu/release/deps/cross_test-451dd26ad7f599f1.46gbdv0597lf24is.rcgu.o" "-L" "/target/x86_64-pc-windows-gnu/release/deps" "-L" "/target/release/deps" "-L" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib" "-Wl,-Bstatic" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libstd-53284af569e5f6ed.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libpanic_unwind-1886f36c6527e50c.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libobject-78ff9a17aa8e2177.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libmemchr-f41420a0b26cc037.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libaddr2line-8c4034e188fcccc2.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libgimli-e63890247676e919.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_demangle-77e65611771dd860.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libstd_detect-6b3d6f307421a89a.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libhashbrown-03166ff941b0d917.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_std_workspace_alloc-0cf300b3796ae454.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libminiz_oxide-52f9046473ace87d.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libadler-9db720405742c618.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libunwind-1bdaeecf79a3def1.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libcfg_if-9df93765f1cbf124.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/liblibc-bca6b94a9de46761.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/liballoc-7724ac2fef16edeb.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_std_workspace_core-430c8ff8148a7795.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libcore-0a5a55778bdea4e0.rlib" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libcompiler_builtins-9cd876ce3c045fc3.rlib" "-Wl,-Bdynamic" "-lkernel32" "-ladvapi32" "-lkernel32" "-lntdll" "-luserenv" "-lws2_32" "-lsynchronization" "-lkernel32" "-lws2_32" "-lkernel32" "-lntdll" "-lkernel32" "-lgcc_eh" "-l:libpthread.a" "-lmsvcrt" "-lmingwex" "-lmingw32" "-lgcc" "-lmsvcrt" "-luser32" "-lkernel32" "-Wl,--nxcompat" "-L" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib" "-o" "/target/x86_64-pc-windows-gnu/release/deps/cross_test-451dd26ad7f599f1.exe" "-Wl,--gc-sections" "-no-pie" "-Wl,-O1" "-nodefaultlibs" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/rsend.o"
= note: /usr/bin/x86_64-w64-mingw32-ld: cannot find -lsynchronization
collect2: error: ld returned 1 exit status

error: could not compile cross-test (bin "cross-test") due to 1 previous error
`

#1445 is close but that is specific to a python lib where as I believe the synchronization library should be in the standard mingw install?

What target(s) are you cross-compiling for?

No response

Which operating system is the host (e.g computer cross is on) running?

• macOS
• Windows
• Linux / BSD
• other OS (specify in description)

What architecture is the host?

• x86_64 / AMD64
• arm32
• arm64 (including Mac M1)

What container engine is cross using?

• docker
• podman
• other container engine (specify in description)

cross version

cross 0.2.5

Example

mkdir cross-test
cd cross-test
cargo init
cross build --target x86_64-pc-windows-gnu --release

Additional information / notes

I tested this on an ubuntu 22 host, in an ubuntu 22 container and in an ubuntu 24 container. I have made sure my mingw package is up to date.

[mcarson-sandia]

I did some testing and everything works on nightly-2024-02-26-x86_64-unknown-linux-gnu but is broken on any nightly version after that.

[Emilgardis]

can you try this with cross from the main branch instead?

cargo install cross --git https://github.com/cross-rs/cross

[mcarson-sandia]

That appears to have fixed it on the latest nightly. Is there an ETA on when the next release will be so I can switch our pipelines back to a tagged release?

[mcarson-sandia]

Let me know if I should make this a new issue but while that fix did work on my local tests with a bare bones project when applying it to our CI/CD pipelines it fails with the following error (pinning to the 2024-02-26 nightly does work though with no other changes).

$ cross build --target x86_64-pc-windows-gnu  --features vendored-openssl --release
[cross] warning: got volume of "/usr/local/share/ca-certificates/ca.crt:/usr/local/share/ca-certificates/ca.crt" which is not a valid environment variable name. the proper syntax is `volumes = ["ENVVAR=/path/to/directory"]`

[Emilgardis]

that warning is explaining itself, you have a malformatted entry in the config. the reason it fails in CI is because warnings are treated as errors in CI now due to many people missing the warnings that cross gives, and sometimes even believing they are using cross when they actually weren't