$ cargo new foo --bin
$ cd foo
$ rustup run nightly-2016-07-19 cargo build --target x86_64-unknown-linux-musl
Compiling foo v0.1.0 (file:///home/alex/code/foo)
$ rustup run nightly-2016-07-20 cargo build --target x86_64-unknown-linux-musl
Compiling foo v0.1.0 (file:///home/alex/code/foo)
error: linking with `cc` failed: exit code: 1
|
= note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-nostdlib" "-static" "-Wl,--eh-frame-hdr" "-Wl,-(" "-m64" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crt1.o" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crti.o" "-L" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib" "/home/alex/code/foo/target/x86_64-unknown-linux-musl/debug/foo.0.o" "-o" "/home/alex/code/foo/target/x86_64-unknown-linux-musl/debug/foo" "-Wl,--gc-sections" "-nodefaultlibs" "-L" "/home/alex/code/foo/target/x86_64-unknown-linux-musl/debug" "-L" "/home/alex/code/foo/target/x86_64-unknown-linux-musl/debug/deps" "-L" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib" "-Wl,-Bstatic" "-Wl,-Bdynamic" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libstd-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libpanic_unwind-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libunwind-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/librand-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libcollections-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/librustc_unicode-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc_jemalloc-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liblibc-c8005792.rlib" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/libcore-c8005792.rlib" "-l" "compiler-rt" "/home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/crtn.o" "-Wl,-)"
= note: /usr/bin/ld: /home/alex/.multirust/toolchains/nightly-2016-07-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl/lib/liballoc_jemalloc-c8005792.rlib(jemalloc.pic.o): unrecognized relocation (0x2a) in section `.text.malloc_conf_init'
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
error: aborting due to previous error
error: Could not compile `foo`.
To learn more, run the command again with --verbose.
This was a recent regression:
The diff between the nightlies looks innocuous, so it looks like it was some change in deployment or images.