Dec 13 09:52:33.052 INFO testing mrsweaters/nutbutter-os against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550 Dec 13 09:52:33.052 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 13 09:52:33.232 INFO [stdout] 5bddb8a0773ae699689a57b6cfb28c1f9e6a50bd86d899d32510975f1ed9da09 Dec 13 09:52:33.234 INFO running `"docker" "start" "-a" "5bddb8a0773ae699689a57b6cfb28c1f9e6a50bd86d899d32510975f1ed9da09"` Dec 13 09:52:33.632 INFO [stderr] usermod: no changes Dec 13 09:52:33.699 INFO [stderr] Compiling nb_os v0.1.0 (/source) Dec 13 09:52:34.113 INFO [stderr] error: linking with `cc` failed: exit code: 1 Dec 13 09:52:34.113 INFO [stderr] | Dec 13 09:52:34.119 INFO [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/rustup-home/toolchains/bd47d6825bf4090517549d33cfef10d3300b4a75-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.0.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.1.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.10.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.11.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.12.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.13.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.14.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.15.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.2.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.3.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.4.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.5.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.6.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.7.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.8.rcgu.o" "/target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.9.rcgu.o" "-o" "/target/debug/deps/nb_os-7a3570c980e20c80" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/target/debug/deps" "-L" "/rustup-home/toolchains/bd47d6825bf4090517549d33cfef10d3300b4a75-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/target/debug/deps/libvolatile-5b6d326e7801c8d6.rlib" "/target/debug/deps/libbootloader_precompiled-f61d5a2a46845bf2.rlib" "/target/debug/deps/libos_bootinfo-b4342568bc4a022d.rlib" "/target/debug/deps/liblazy_static-14f14485c65df3e7.rlib" "/target/debug/deps/libspin-d198bfcffeb0e3ad.rlib" "/rustup-home/toolchains/bd47d6825bf4090517549d33cfef10d3300b4a75-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-02cab32753740b78.rlib" "/rustup-home/toolchains/bd47d6825bf4090517549d33cfef10d3300b4a75-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-abcd26adb0919b33.rlib" "/rustup-home/toolchains/bd47d6825bf4090517549d33cfef10d3300b4a75-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-e4966369233fd0ee.rlib" "-Wl,-Bdynamic" Dec 13 09:52:34.119 INFO [stderr] = note: /target/debug/deps/nb_os-7a3570c980e20c80.nb_os.7zfzx57r-cgu.5.rcgu.o: In function `_start': Dec 13 09:52:34.119 INFO [stderr] /source/src/main.rs:23: multiple definition of `_start' Dec 13 09:52:34.119 INFO [stderr] /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here Dec 13 09:52:34.119 INFO [stderr] /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': Dec 13 09:52:34.119 INFO [stderr] (.text+0x12): undefined reference to `__libc_csu_fini' Dec 13 09:52:34.119 INFO [stderr] /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': Dec 13 09:52:34.119 INFO [stderr] (.text+0x19): undefined reference to `__libc_csu_init' Dec 13 09:52:34.119 INFO [stderr] /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': Dec 13 09:52:34.119 INFO [stderr] (.text+0x20): undefined reference to `main' Dec 13 09:52:34.119 INFO [stderr] /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': Dec 13 09:52:34.119 INFO [stderr] (.text+0x25): undefined reference to `__libc_start_main' Dec 13 09:52:34.119 INFO [stderr] collect2: error: ld returned 1 exit status Dec 13 09:52:34.119 INFO [stderr] Dec 13 09:52:34.119 INFO [stderr] Dec 13 09:52:34.119 INFO [stderr] error: aborting due to previous error Dec 13 09:52:34.119 INFO [stderr] Dec 13 09:52:34.122 INFO [stderr] error: Could not compile `nb_os`. Dec 13 09:52:34.122 INFO [stderr] Dec 13 09:52:34.122 INFO [stderr] To learn more, run the command again with --verbose. Dec 13 09:52:34.123 INFO [stderr] su: No module specific data is present Dec 13 09:52:34.782 INFO running `"docker" "inspect" "5bddb8a0773ae699689a57b6cfb28c1f9e6a50bd86d899d32510975f1ed9da09"` Dec 13 09:52:34.983 INFO running `"docker" "rm" "-f" "5bddb8a0773ae699689a57b6cfb28c1f9e6a50bd86d899d32510975f1ed9da09"` Dec 13 09:52:35.218 INFO [stdout] 5bddb8a0773ae699689a57b6cfb28c1f9e6a50bd86d899d32510975f1ed9da09