Nov 16 19:10:15.546 INFO testing mpajkowski/micecoreos against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 19:10:15.546 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 19:10:16.003 INFO [stdout] c3b3ae046021b7b281ad742fe1f884810fcb8edb2e268b35154e4e4d13a6ad41
Nov 16 19:10:16.005 INFO running `"docker" "start" "-a" "c3b3ae046021b7b281ad742fe1f884810fcb8edb2e268b35154e4e4d13a6ad41"`
Nov 16 19:10:17.475 INFO [stderr] usermod: no changes
Nov 16 19:10:17.541 INFO [stderr]    Compiling os_bootinfo v0.2.1
Nov 16 19:10:17.541 INFO [stderr]    Compiling spin v0.4.9
Nov 16 19:10:17.541 INFO [stderr]    Compiling volatile v0.2.4
Nov 16 19:10:17.541 INFO [stderr]    Compiling lazy_static v1.1.0
Nov 16 19:10:18.616 INFO [stderr]    Compiling bootloader_precompiled v0.2.0
Nov 16 19:10:19.278 INFO [stderr]    Compiling micecoreos v0.1.0 (/source)
Nov 16 19:10:19.551 INFO [stderr] warning: unused `core::result::Result` that must be used
Nov 16 19:10:19.552 INFO [stderr]   --> src/main.rs:28:9
Nov 16 19:10:19.553 INFO [stderr]    |
Nov 16 19:10:19.553 INFO [stderr] 28 |         write!(vga::WRITER.lock(), "{} ", i);
Nov 16 19:10:19.554 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:10:19.554 INFO [stderr]    |
Nov 16 19:10:19.555 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 16 19:10:19.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 19:10:19.556 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 19:10:19.557 INFO [stderr] 
Nov 16 19:10:19.824 INFO [stderr] error: linking with `cc` failed: exit code: 1
Nov 16 19:10:19.824 INFO [stderr]   |
Nov 16 19:10:19.824 INFO [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/rustup-home/toolchains/2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.0.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.1.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.10.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.11.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.12.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.13.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.14.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.15.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.2.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.3.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.4.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.5.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.6.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.7.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.8.rcgu.o" "/target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.9.rcgu.o" "-o" "/target/debug/deps/micecoreos-7a10b231d3e5011e" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/target/debug/deps" "-L" "/rustup-home/toolchains/2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/target/debug/deps/liblazy_static-7a46bf7f89c8dda5.rlib" "/target/debug/deps/libspin-ae6ec207f873331e.rlib" "/target/debug/deps/libvolatile-468ac822d20057df.rlib" "/target/debug/deps/libbootloader_precompiled-3a24b3bb96d8a152.rlib" "/target/debug/deps/libos_bootinfo-16f4ede316e0a2b5.rlib" "/rustup-home/toolchains/2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-d49e8dd020e9654c.rlib" "/rustup-home/toolchains/2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-25f3a21ce204c507.rlib" "-Wl,-Bdynamic"
Nov 16 19:10:19.824 INFO [stderr]   = note: /target/debug/deps/micecoreos-7a10b231d3e5011e.micecoreos.2r67lhyb-cgu.4.rcgu.o: In function `_start':
Nov 16 19:10:19.824 INFO [stderr]           /source/src/main.rs:22: multiple definition of `_start'
Nov 16 19:10:19.824 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
Nov 16 19:10:19.824 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 16 19:10:19.824 INFO [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
Nov 16 19:10:19.824 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 16 19:10:19.824 INFO [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
Nov 16 19:10:19.824 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 16 19:10:19.824 INFO [stderr]           (.text+0x20): undefined reference to `main'
Nov 16 19:10:19.824 INFO [stderr]           /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
Nov 16 19:10:19.824 INFO [stderr]           (.text+0x25): undefined reference to `__libc_start_main'
Nov 16 19:10:19.824 INFO [stderr]           collect2: error: ld returned 1 exit status
Nov 16 19:10:19.824 INFO [stderr]           
Nov 16 19:10:19.824 INFO [stderr] 
Nov 16 19:10:19.824 INFO [stderr] error: aborting due to previous error
Nov 16 19:10:19.824 INFO [stderr] 
Nov 16 19:10:19.835 INFO [stderr] error: Could not compile `micecoreos`.
Nov 16 19:10:19.835 INFO [stderr] 
Nov 16 19:10:19.835 INFO [stderr] To learn more, run the command again with --verbose.
Nov 16 19:10:19.835 INFO [stderr] su: No module specific data is present
Nov 16 19:10:20.917 INFO running `"docker" "inspect" "c3b3ae046021b7b281ad742fe1f884810fcb8edb2e268b35154e4e4d13a6ad41"`
Nov 16 19:10:21.193 INFO running `"docker" "rm" "-f" "c3b3ae046021b7b281ad742fe1f884810fcb8edb2e268b35154e4e4d13a6ad41"`
Nov 16 19:10:21.515 INFO [stdout] c3b3ae046021b7b281ad742fe1f884810fcb8edb2e268b35154e4e4d13a6ad41