Dec 13 09:52:32.885 INFO testing mrsweaters/nutbutter-os against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 09:52:32.885 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 09:52:33.182 INFO [stdout] c5d2905f9f47367d1496680935a144a17689715dec85c56e8588b813e52095cb
Dec 13 09:52:33.184 INFO running `"docker" "start" "-a" "c5d2905f9f47367d1496680935a144a17689715dec85c56e8588b813e52095cb"`
Dec 13 09:52:33.592 INFO [stderr] usermod: no changes
Dec 13 09:52:33.626 INFO [stderr]    Compiling spin v0.4.9
Dec 13 09:52:33.627 INFO [stderr]    Compiling os_bootinfo v0.2.1
Dec 13 09:52:33.627 INFO [stderr]    Compiling volatile v0.2.4
Dec 13 09:52:33.627 INFO [stderr]    Compiling lazy_static v1.1.0
Dec 13 09:52:33.982 INFO [stderr]    Compiling bootloader_precompiled v0.2.0
Dec 13 09:52:34.567 INFO [stderr]    Compiling nb_os v0.1.0 (/source)
Dec 13 09:52:35.063 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 13 09:52:35.063 INFO [stderr]   |
Dec 13 09:52:35.063 INFO [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/rustup-home/toolchains/aa49d8ef14939ddec0e34b346b60174a5673d48f-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.0.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.1.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.10.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.11.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.12.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.13.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.14.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.15.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.2.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.3.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.4.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.5.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.6.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.7.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.8.rcgu.o" "/target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.9.rcgu.o" "-o" "/target/debug/deps/nb_os-cc68e629629ae366" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/target/debug/deps" "-L" "/rustup-home/toolchains/aa49d8ef14939ddec0e34b346b60174a5673d48f-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/target/debug/deps/libvolatile-a734d5e145c017a6.rlib" "/target/debug/deps/libbootloader_precompiled-f6798df159e90025.rlib" "/target/debug/deps/libos_bootinfo-527b7dbdafd7d114.rlib" "/target/debug/deps/liblazy_static-419155b935aafb25.rlib" "/target/debug/deps/libspin-2f887ed3183cf8bd.rlib" "/rustup-home/toolchains/aa49d8ef14939ddec0e34b346b60174a5673d48f-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-f9a54acb2f768daa.rlib" "/rustup-home/toolchains/aa49d8ef14939ddec0e34b346b60174a5673d48f-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-fd7c3c73a313f74d.rlib" "/rustup-home/toolchains/aa49d8ef14939ddec0e34b346b60174a5673d48f-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f941d940954fa72.rlib" "-Wl,-Bdynamic"
Dec 13 09:52:35.063 INFO [stderr]   = note: /target/debug/deps/nb_os-cc68e629629ae366.nb_os.89uq2p9z-cgu.5.rcgu.o: In function `_start':
Dec 13 09:52:35.063 INFO [stderr]           /source/src/main.rs:23: multiple definition of `_start'
Dec 13 09:52:35.063 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 13 09:52:35.063 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 13 09:52:35.063 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 13 09:52:35.063 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 13 09:52:35.063 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 13 09:52:35.063 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 13 09:52:35.063 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 13 09:52:35.063 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 13 09:52:35.063 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 13 09:52:35.063 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 13 09:52:35.063 INFO [stderr]           
Dec 13 09:52:35.063 INFO [stderr] 
Dec 13 09:52:35.063 INFO [stderr] error: aborting due to previous error
Dec 13 09:52:35.063 INFO [stderr] 
Dec 13 09:52:35.067 INFO [stderr] error: Could not compile `nb_os`.
Dec 13 09:52:35.067 INFO [stderr] 
Dec 13 09:52:35.067 INFO [stderr] To learn more, run the command again with --verbose.
Dec 13 09:52:35.068 INFO [stderr] su: No module specific data is present
Dec 13 09:52:35.589 INFO running `"docker" "inspect" "c5d2905f9f47367d1496680935a144a17689715dec85c56e8588b813e52095cb"`
Dec 13 09:52:35.777 INFO running `"docker" "rm" "-f" "c5d2905f9f47367d1496680935a144a17689715dec85c56e8588b813e52095cb"`
Dec 13 09:52:35.911 INFO [stdout] c5d2905f9f47367d1496680935a144a17689715dec85c56e8588b813e52095cb