Dec 05 13:41:18.933 INFO testing mrsweaters/nutbutter-os against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 13:41:18.933 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:41:19.244 INFO [stdout] d21c7af29b5d25f9a462d1b4b9e9ad1c5c58eb3c712acfab6f8f68b4deb8ed35
Dec 05 13:41:19.246 INFO running `"docker" "start" "-a" "d21c7af29b5d25f9a462d1b4b9e9ad1c5c58eb3c712acfab6f8f68b4deb8ed35"`
Dec 05 13:41:19.777 INFO [stderr] usermod: no changes
Dec 05 13:41:19.813 INFO [stderr]    Compiling nb_os v0.1.0 (/source)
Dec 05 13:41:20.073 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 05 13:41:20.073 INFO [stderr]   |
Dec 05 13:41:20.073 INFO [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/rustup-home/toolchains/906deae0790bd18681b937fe9a141a3c26cf1855-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.0.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.1.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.10.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.11.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.12.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.13.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.14.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.15.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.2.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.3.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.4.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.5.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.6.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.7.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.8.rcgu.o" "/target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.9.rcgu.o" "-o" "/target/debug/deps/nb_os-fd1820346691bce4" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/target/debug/deps" "-L" "/rustup-home/toolchains/906deae0790bd18681b937fe9a141a3c26cf1855-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/target/debug/deps/libvolatile-59d439089f9d3ffb.rlib" "/target/debug/deps/libbootloader_precompiled-a538de20a18bf0f1.rlib" "/target/debug/deps/libos_bootinfo-79cb1aba9062664a.rlib" "/target/debug/deps/liblazy_static-9e15f2f364b1e062.rlib" "/target/debug/deps/libspin-bfdc2737caebf916.rlib" "/rustup-home/toolchains/906deae0790bd18681b937fe9a141a3c26cf1855-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-10fd134b0cf006a8.rlib" "/rustup-home/toolchains/906deae0790bd18681b937fe9a141a3c26cf1855-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-1306eac77b02d077.rlib" "-Wl,-Bdynamic"
Dec 05 13:41:20.073 INFO [stderr]   = note: /target/debug/deps/nb_os-fd1820346691bce4.nb_os.dexwh9rs-cgu.5.rcgu.o: In function `_start':
Dec 05 13:41:20.073 INFO [stderr]           /source/src/main.rs:23: multiple definition of `_start'
Dec 05 13:41:20.073 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 05 13:41:20.073 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 13:41:20.073 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 05 13:41:20.073 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 13:41:20.073 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 05 13:41:20.073 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 13:41:20.073 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 05 13:41:20.073 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 13:41:20.073 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 05 13:41:20.073 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 05 13:41:20.073 INFO [stderr]           
Dec 05 13:41:20.076 INFO [stderr] 
Dec 05 13:41:20.076 INFO [stderr] error: aborting due to previous error
Dec 05 13:41:20.076 INFO [stderr] 
Dec 05 13:41:20.081 INFO [stderr] error: Could not compile `nb_os`.
Dec 05 13:41:20.081 INFO [stderr] 
Dec 05 13:41:20.081 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 13:41:20.084 INFO [stderr] su: No module specific data is present
Dec 05 13:41:20.362 INFO running `"docker" "inspect" "d21c7af29b5d25f9a462d1b4b9e9ad1c5c58eb3c712acfab6f8f68b4deb8ed35"`
Dec 05 13:41:20.467 INFO running `"docker" "rm" "-f" "d21c7af29b5d25f9a462d1b4b9e9ad1c5c58eb3c712acfab6f8f68b4deb8ed35"`
Dec 05 13:41:20.598 INFO [stdout] d21c7af29b5d25f9a462d1b4b9e9ad1c5c58eb3c712acfab6f8f68b4deb8ed35