Dec 05 17:52:11.569 INFO testing kevin-bebel/rust_os against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 17:52:11.569 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 05 17:52:12.015 INFO [stdout] 1fcad44ed6332817d32a3256d9024c56451bdba22b997e18b58c4f9903a623d6
Dec 05 17:52:12.020 INFO running `"docker" "start" "-a" "1fcad44ed6332817d32a3256d9024c56451bdba22b997e18b58c4f9903a623d6"`
Dec 05 17:52:13.273 INFO [stderr] usermod: no changes
Dec 05 17:52:13.459 INFO [stderr]    Compiling usize_conversions v0.2.0
Dec 05 17:52:13.461 INFO [stderr]    Compiling zero v0.1.2
Dec 05 17:52:13.468 INFO [stderr]    Compiling bit_field v0.9.0
Dec 05 17:52:13.468 INFO [stderr]    Compiling ux v0.1.2
Dec 05 17:52:13.472 INFO [stderr]    Compiling os_bootinfo v0.2.1
Dec 05 17:52:13.472 INFO [stderr]    Compiling pulldown-cmark v0.0.3
Dec 05 17:52:13.908 INFO [stderr]    Compiling xmas-elf v0.6.2
Dec 05 17:52:18.608 INFO [stderr]    Compiling skeptic v0.5.0
Dec 05 17:52:20.136 INFO [stderr]    Compiling fixedvec v0.2.3
Dec 05 17:52:30.965 INFO [stderr]    Compiling x86_64 v0.2.14
Dec 05 17:52:32.807 INFO [stderr]    Compiling bootloader v0.3.4
Dec 05 17:52:33.389 INFO [stderr]    Compiling rust_os v0.1.0 (/source)
Dec 05 17:52:33.704 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 05 17:52:33.704 INFO [stderr]   |
Dec 05 17:52:33.704 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/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.0.rcgu.o" "/target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.1.rcgu.o" "/target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.2.rcgu.o" "/target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.3.rcgu.o" "/target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.4.rcgu.o" "/target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.5.rcgu.o" "-o" "/target/debug/deps/rust_os-944cd35eacf42379" "-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" "/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 17:52:33.704 INFO [stderr]   = note: /target/debug/deps/rust_os-944cd35eacf42379.rust_os.6l1usylq-cgu.0.rcgu.o: In function `_start':
Dec 05 17:52:33.704 INFO [stderr]           /source/src/main.rs:20: multiple definition of `_start'
Dec 05 17:52:33.704 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 05 17:52:33.704 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 17:52:33.704 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 05 17:52:33.704 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 17:52:33.704 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 05 17:52:33.704 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 17:52:33.704 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 05 17:52:33.704 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 17:52:33.704 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 05 17:52:33.704 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 05 17:52:33.704 INFO [stderr]           
Dec 05 17:52:33.705 INFO [stderr] 
Dec 05 17:52:33.705 INFO [stderr] error: aborting due to previous error
Dec 05 17:52:33.705 INFO [stderr] 
Dec 05 17:52:33.712 INFO [stderr] error: Could not compile `rust_os`.
Dec 05 17:52:33.712 INFO [stderr] 
Dec 05 17:52:33.712 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 17:52:33.716 INFO [stderr] su: No module specific data is present
Dec 05 17:52:34.728 INFO running `"docker" "inspect" "1fcad44ed6332817d32a3256d9024c56451bdba22b997e18b58c4f9903a623d6"`
Dec 05 17:52:34.988 INFO running `"docker" "rm" "-f" "1fcad44ed6332817d32a3256d9024c56451bdba22b997e18b58c4f9903a623d6"`
Dec 05 17:52:35.300 INFO [stdout] 1fcad44ed6332817d32a3256d9024c56451bdba22b997e18b58c4f9903a623d6