Dec 06 16:01:03.840 INFO testing AleVul/kernel_playground against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 16:01:03.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 06 16:01:04.259 INFO [stdout] 36d887f23b626f33ed994daa2078c2edc07058a9e6f871d80f7a461ef59ae572
Dec 06 16:01:04.261 INFO running `"docker" "start" "-a" "36d887f23b626f33ed994daa2078c2edc07058a9e6f871d80f7a461ef59ae572"`
Dec 06 16:01:05.426 INFO [stderr] usermod: no changes
Dec 06 16:01:05.511 INFO [stderr]    Compiling x86_64 v0.2.11
Dec 06 16:01:07.282 INFO [stderr]    Compiling bootloader_precompiled v0.3.0
Dec 06 16:01:08.040 INFO [stderr]    Compiling kernel_playground v0.1.0 (/source)
Dec 06 16:01:08.858 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 06 16:01:08.858 INFO [stderr]   |
Dec 06 16:01:08.858 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/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.0.rcgu.o" "/target/debug/deps/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.1.rcgu.o" "/target/debug/deps/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.2.rcgu.o" "/target/debug/deps/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.3.rcgu.o" "/target/debug/deps/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.4.rcgu.o" "-o" "/target/debug/deps/kernel_playground-1edfa98718ab8667" "-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/libbootloader_precompiled-7a15773e6f75ffb0.rlib" "/target/debug/deps/libx86_64-925ccff58a508b41.rlib" "/target/debug/deps/libux-9867246a17850454.rlib" "/target/debug/deps/libusize_conversions-1dc372f9d9d06998.rlib" "/target/debug/deps/libos_bootinfo-79cb1aba9062664a.rlib" "/target/debug/deps/libbit_field-e6410a4e74f50775.rlib" "/target/debug/deps/libbitflags-a9fb9851d9501307.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 06 16:01:08.858 INFO [stderr]   = note: /target/debug/deps/kernel_playground-1edfa98718ab8667.kernel_playground.2vp0ioc2-cgu.4.rcgu.o: In function `_start':
Dec 06 16:01:08.858 INFO [stderr]           /source/src/main.rs:17: multiple definition of `_start'
Dec 06 16:01:08.858 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 06 16:01:08.858 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 16:01:08.858 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 06 16:01:08.858 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 16:01:08.858 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 06 16:01:08.858 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 16:01:08.858 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 06 16:01:08.858 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 16:01:08.858 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 06 16:01:08.858 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 06 16:01:08.858 INFO [stderr]           
Dec 06 16:01:08.858 INFO [stderr] 
Dec 06 16:01:08.858 INFO [stderr] error: aborting due to previous error
Dec 06 16:01:08.858 INFO [stderr] 
Dec 06 16:01:08.861 INFO [stderr] error: Could not compile `kernel_playground`.
Dec 06 16:01:08.861 INFO [stderr] 
Dec 06 16:01:08.861 INFO [stderr] To learn more, run the command again with --verbose.
Dec 06 16:01:08.863 INFO [stderr] su: No module specific data is present
Dec 06 16:01:09.356 INFO running `"docker" "inspect" "36d887f23b626f33ed994daa2078c2edc07058a9e6f871d80f7a461ef59ae572"`
Dec 06 16:01:09.449 INFO running `"docker" "rm" "-f" "36d887f23b626f33ed994daa2078c2edc07058a9e6f871d80f7a461ef59ae572"`
Dec 06 16:01:09.561 INFO [stdout] 36d887f23b626f33ed994daa2078c2edc07058a9e6f871d80f7a461ef59ae572