Dec 05 22:56:24.293 INFO testing gdberrio/rustos against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 22:56:24.293 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 22:56:24.804 INFO [stdout] da6c593d3acd0eea025095f26bc53d7b08720da0169a127fe7a535b0f9bbd884
Dec 05 22:56:24.810 INFO running `"docker" "start" "-a" "da6c593d3acd0eea025095f26bc53d7b08720da0169a127fe7a535b0f9bbd884"`
Dec 05 22:56:26.044 INFO [stderr] usermod: no changes
Dec 05 22:56:26.088 INFO [stderr]    Compiling os_bootinfo v0.2.1
Dec 05 22:56:26.800 INFO [stderr]    Compiling bootloader_precompiled v0.2.0
Dec 05 22:56:26.952 INFO [stderr]    Compiling rustos v0.1.0 (/source)
Dec 05 22:56:27.052 INFO [stderr] warning: the feature `panic_handler` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 05 22:56:27.052 INFO [stderr]  --> src/main.rs:1:12
Dec 05 22:56:27.052 INFO [stderr]   |
Dec 05 22:56:27.052 INFO [stderr] 1 | #![feature(panic_handler)]
Dec 05 22:56:27.052 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 05 22:56:27.052 INFO [stderr]   |
Dec 05 22:56:27.052 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 22:56:27.052 INFO [stderr] 
Dec 05 22:56:27.220 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 05 22:56:27.220 INFO [stderr]   |
Dec 05 22:56:27.220 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/rustos-25d271d3e294e728.rustos.er6yxowa-cgu.0.rcgu.o" "/target/debug/deps/rustos-25d271d3e294e728.rustos.er6yxowa-cgu.1.rcgu.o" "-o" "/target/debug/deps/rustos-25d271d3e294e728" "-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-a538de20a18bf0f1.rlib" "/target/debug/deps/libos_bootinfo-79cb1aba9062664a.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 22:56:27.220 INFO [stderr]   = note: /target/debug/deps/rustos-25d271d3e294e728.rustos.er6yxowa-cgu.1.rcgu.o: In function `_start':
Dec 05 22:56:27.220 INFO [stderr]           /source/src/main.rs:18: multiple definition of `_start'
Dec 05 22:56:27.220 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 05 22:56:27.220 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 22:56:27.220 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 05 22:56:27.220 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 22:56:27.220 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 05 22:56:27.220 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 22:56:27.220 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 05 22:56:27.220 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 05 22:56:27.220 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 05 22:56:27.220 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 05 22:56:27.220 INFO [stderr]           
Dec 05 22:56:27.220 INFO [stderr] 
Dec 05 22:56:27.220 INFO [stderr] error: aborting due to previous error
Dec 05 22:56:27.220 INFO [stderr] 
Dec 05 22:56:27.220 INFO [stderr] error: Could not compile `rustos`.
Dec 05 22:56:27.220 INFO [stderr] 
Dec 05 22:56:27.220 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 22:56:27.220 INFO [stderr] su: No module specific data is present
Dec 05 22:56:27.770 INFO running `"docker" "inspect" "da6c593d3acd0eea025095f26bc53d7b08720da0169a127fe7a535b0f9bbd884"`
Dec 05 22:56:28.052 INFO running `"docker" "rm" "-f" "da6c593d3acd0eea025095f26bc53d7b08720da0169a127fe7a535b0f9bbd884"`
Dec 05 22:56:28.362 INFO [stdout] da6c593d3acd0eea025095f26bc53d7b08720da0169a127fe7a535b0f9bbd884