Dec 06 00:47:04.149 INFO testing ejlangev/rust_os against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 00:47:04.149 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 00:47:04.485 INFO [stdout] c58240962f0e3058012c0a8e0ff05532af2fac763668de53e95c6e6c7f41f112
Dec 06 00:47:04.494 INFO running `"docker" "start" "-a" "c58240962f0e3058012c0a8e0ff05532af2fac763668de53e95c6e6c7f41f112"`
Dec 06 00:47:06.336 INFO [stderr] usermod: no changes
Dec 06 00:47:06.480 INFO [stderr]    Compiling font8x8 v0.2.4
Dec 06 00:47:06.480 INFO [stderr]    Compiling spin v0.4.10
Dec 06 00:47:06.488 INFO [stderr]    Compiling skeptic v0.5.0
Dec 06 00:47:07.156 INFO [stderr]    Compiling lazy_static v1.2.0
Dec 06 00:47:09.376 INFO [stderr]    Compiling fixedvec v0.2.3
Dec 06 00:47:10.603 INFO [stderr]    Compiling bootloader v0.3.7
Dec 06 00:47:11.537 INFO [stderr]    Compiling ethan_os v0.1.0 (/source)
Dec 06 00:47:12.233 INFO [stderr] error: linking with `cc` failed: exit code: 1
Dec 06 00:47:12.234 INFO [stderr]   |
Dec 06 00:47:12.234 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/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.0.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.1.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.10.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.11.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.12.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.13.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.14.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.15.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.2.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.3.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.4.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.5.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.6.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.7.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.8.rcgu.o" "/target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.9.rcgu.o" "-o" "/target/debug/deps/ethan_os-f28a91e1442323e4" "-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-3b3d02e5d0eb1b21.rlib" "/target/debug/deps/liblazy_static-32a4acf5538ff2b2.rlib" "/target/debug/deps/libspin-bcc2e02ee7587c4a.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 00:47:12.234 INFO [stderr]   = note: /target/debug/deps/ethan_os-f28a91e1442323e4.ethan_os.4c2sxgn6-cgu.2.rcgu.o: In function `_start':
Dec 06 00:47:12.235 INFO [stderr]           /source/src/main.rs:22: multiple definition of `_start'
Dec 06 00:47:12.235 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Dec 06 00:47:12.235 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 00:47:12.235 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Dec 06 00:47:12.236 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 00:47:12.236 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Dec 06 00:47:12.236 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 00:47:12.237 INFO [stderr]           (.text+0x20): undefined reference to `main'
Dec 06 00:47:12.237 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Dec 06 00:47:12.237 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Dec 06 00:47:12.237 INFO [stderr]           collect2: error: ld returned 1 exit status
Dec 06 00:47:12.237 INFO [stderr]           
Dec 06 00:47:12.238 INFO [stderr] 
Dec 06 00:47:12.238 INFO [stderr] error: aborting due to previous error
Dec 06 00:47:12.238 INFO [stderr] 
Dec 06 00:47:12.243 INFO [stderr] error: Could not compile `ethan_os`.
Dec 06 00:47:12.243 INFO [stderr] 
Dec 06 00:47:12.244 INFO [stderr] To learn more, run the command again with --verbose.
Dec 06 00:47:12.245 INFO [stderr] su: No module specific data is present
Dec 06 00:47:13.615 INFO running `"docker" "inspect" "c58240962f0e3058012c0a8e0ff05532af2fac763668de53e95c6e6c7f41f112"`
Dec 06 00:47:13.984 INFO running `"docker" "rm" "-f" "c58240962f0e3058012c0a8e0ff05532af2fac763668de53e95c6e6c7f41f112"`
Dec 06 00:47:14.304 INFO [stdout] c58240962f0e3058012c0a8e0ff05532af2fac763668de53e95c6e6c7f41f112