The newest nightly breaks static musl builds. #44069
Description
The newest nightly breaks static musl builds.
This is most likely to be caused by the landing of #40113
Here's a very simple demo: https://github.com/golddranks/rustc_broken_static_demo (Try running build_old.sh and build_new.sh)
The scripts build the hello world program in two environments: one with nightly 2017-08-23 and one with 2017-08-24. The latter contains the PR #40113. The Dockerfile for the image is here: https://github.com/golddranks/rust_musl_docker
The former succeeds, whereas the latter fails with:
Running `rustc --crate-name rustc_broken_static_demo src/main.rs --crate-type bin --emit=dep-info,link -C debuginfo=2 -C metadata=5a6a9f373ff62f0b -C extra-filename=-5a6a9f373ff62f0b --out-dir /workdir/target/x86_64-unknown-linux-musl/debug/deps --target x86_64-unknown-linux-musl -L dependency=/workdir/target/x86_64-unknown-linux-musl/debug/deps -L dependency=/workdir/target/debug/deps`
error: linking with `cc` failed: exit code: 1
|
= note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-nostdlib" "-Wl,--eh-frame-hdr" "-Wl,-(" "-m64" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crt1.o" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crti.o" "-L" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib" "/workdir/target/x86_64-unknown-linux-musl/debug/deps/rustc_broken_static_demo-5a6a9f373ff62f0b.0.o" "-o" "/workdir/target/x86_64-unknown-linux-musl/debug/deps/rustc_broken_static_demo-5a6a9f373ff62f0b" "/workdir/target/x86_64-unknown-linux-musl/debug/deps/rustc_broken_static_demo-5a6a9f373ff62f0b.crate.allocator.o" "-Wl,--gc-sections" "-Wl,-z,relro,-z,now" "-nodefaultlibs" "-L" "/workdir/target/x86_64-unknown-linux-musl/debug/deps" "-L" "/workdir/target/debug/deps" "-L" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib" "-Wl,-Bstatic" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libstd-1873b4d191d228e8.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/librand-655f47aee8a3420b.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc_jemalloc-ab5831f4fba53ade.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc_system-1c88582d9022c1cc.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libpanic_unwind-fa52c59d2108c1f8.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libunwind-45a286e82269a40e.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liblibc-d9d4ae8ab67a6001.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc-d1d3fb714ff1a835.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libstd_unicode-10859fb08aa219d9.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libcore-da02dfafc4660314.rlib" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libcompiler_builtins-126bb39b1b53af10.rlib" "-l" "unwind" "-static" "-Wl,-Bdynamic" "/root/.rustup/toolchains/nightly-2017-08-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crtn.o" "-Wl,-)"
= note: /usr/bin/ld: cannot find -lunwind