Nov 17 00:46:29.110 INFO testing imondrag/toy_os against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 00:46:29.111 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 00:46:29.595 INFO [stdout] 249cbff09913194bc99c5f5365bdfbd76851e57164eedd99f2f81b19311c80d4
Nov 17 00:46:29.597 INFO running `"docker" "start" "-a" "249cbff09913194bc99c5f5365bdfbd76851e57164eedd99f2f81b19311c80d4"`
Nov 17 00:46:31.731 INFO [stderr] usermod: no changes
Nov 17 00:46:31.813 INFO [stderr]    Compiling bitflags v1.0.4
Nov 17 00:46:31.813 INFO [stderr]    Compiling usize_conversions v0.2.0
Nov 17 00:46:31.813 INFO [stderr]    Compiling bit_field v0.9.0
Nov 17 00:46:31.813 INFO [stderr]    Compiling ux v0.1.2
Nov 17 00:46:31.813 INFO [stderr]    Compiling os_bootinfo v0.2.1
Nov 17 00:46:31.813 INFO [stderr]    Compiling spin v0.4.9
Nov 17 00:46:31.813 INFO [stderr]    Compiling volatile v0.2.4
Nov 17 00:46:31.816 INFO [stderr]    Compiling lazy_static v1.1.0
Nov 17 00:46:49.152 INFO [stderr]    Compiling x86_64 v0.2.11
Nov 17 00:46:51.020 INFO [stderr]    Compiling uart_16550 v0.1.0
Nov 17 00:46:51.648 INFO [stderr]    Compiling toy_os v0.1.0 (/source)
Nov 17 00:46:52.471 INFO [stderr] error: linking with `cc` failed: exit code: 1
Nov 17 00:46:52.471 INFO [stderr]   |
Nov 17 00:46:52.471 INFO [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/rustup-home/toolchains/6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.0.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.1.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.10.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.11.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.12.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.13.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.14.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.15.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.2.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.3.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.4.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.5.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.6.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.7.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.8.rcgu.o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.9.rcgu.o" "-o" "/target/debug/deps/toy_os-b5e0e8b9ddf08868" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/target/debug/deps" "-L" "/rustup-home/toolchains/6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/target/debug/deps/libuart_16550-0d92c1c3a9363038.rlib" "/target/debug/deps/libx86_64-492d9fec2757c4a6.rlib" "/target/debug/deps/libux-7eca90fdefd930a5.rlib" "/target/debug/deps/libusize_conversions-68e7993804c2fbbc.rlib" "/target/debug/deps/libos_bootinfo-5cd0e7d1965525ef.rlib" "/target/debug/deps/libbit_field-4e8d64cfa0a8b3e3.rlib" "/target/debug/deps/libbitflags-5979f247a09c22ae.rlib" "/target/debug/deps/libvolatile-559deb5f28977051.rlib" "/target/debug/deps/liblazy_static-0c87e4cbb3bb7345.rlib" "/target/debug/deps/libspin-4f37c7729a8e6020.rlib" "/rustup-home/toolchains/6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4529caf32dd220b9.rlib" "/rustup-home/toolchains/6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-6899b61660c33938.rlib" "-Wl,-Bdynamic"
Nov 17 00:46:52.471 INFO [stderr]   = note: /target/debug/deps/toy_os-b5e0e8b9ddf08868.toy_os.zffxqgrs-cgu.4.rcgu.o: In function `_start':
Nov 17 00:46:52.471 INFO [stderr]           /source/src/main.rs:48: multiple definition of `_start'
Nov 17 00:46:52.471 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Nov 17 00:46:52.471 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 17 00:46:52.471 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Nov 17 00:46:52.471 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 17 00:46:52.471 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Nov 17 00:46:52.471 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 17 00:46:52.471 INFO [stderr]           (.text+0x20): undefined reference to `main'
Nov 17 00:46:52.471 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 17 00:46:52.471 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Nov 17 00:46:52.471 INFO [stderr]           collect2: error: ld returned 1 exit status
Nov 17 00:46:52.471 INFO [stderr]           
Nov 17 00:46:52.471 INFO [stderr] 
Nov 17 00:46:52.494 INFO [stderr] error: aborting due to previous error
Nov 17 00:46:52.494 INFO [stderr] 
Nov 17 00:46:52.500 INFO [stderr] error: Could not compile `toy_os`.
Nov 17 00:46:52.500 INFO [stderr] 
Nov 17 00:46:52.500 INFO [stderr] To learn more, run the command again with --verbose.
Nov 17 00:46:52.502 INFO [stderr] su: No module specific data is present
Nov 17 00:46:53.647 INFO running `"docker" "inspect" "249cbff09913194bc99c5f5365bdfbd76851e57164eedd99f2f81b19311c80d4"`
Nov 17 00:46:53.785 INFO running `"docker" "rm" "-f" "249cbff09913194bc99c5f5365bdfbd76851e57164eedd99f2f81b19311c80d4"`
Nov 17 00:46:53.883 INFO [stdout] 249cbff09913194bc99c5f5365bdfbd76851e57164eedd99f2f81b19311c80d4