[INFO] updating cached repository mpajkowski/micecoreos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mpajkowski/micecoreos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mpajkowski/micecoreos" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mpajkowski/micecoreos"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mpajkowski/micecoreos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mpajkowski/micecoreos" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mpajkowski/micecoreos"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mpajkowski/micecoreos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 721a5f1c4aa3e86f78a14a09d389058b08fba627
[INFO] sha for GitHub repo mpajkowski/micecoreos: 721a5f1c4aa3e86f78a14a09d389058b08fba627
[INFO] validating manifest of mpajkowski/micecoreos on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mpajkowski/micecoreos on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mpajkowski/micecoreos
[INFO] finished frobbing mpajkowski/micecoreos
[INFO] frobbed toml for mpajkowski/micecoreos written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mpajkowski/micecoreos/Cargo.toml
[INFO] started frobbing mpajkowski/micecoreos
[INFO] finished frobbing mpajkowski/micecoreos
[INFO] frobbed toml for mpajkowski/micecoreos written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mpajkowski/micecoreos/Cargo.toml
[INFO] crate mpajkowski/micecoreos has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mpajkowski/micecoreos against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mpajkowski/micecoreos:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] c446c3d76e34a80910b17e6fb764972e51b2a8778fb0a94c9a9f4550e8be2e74
[INFO] running `"docker" "start" "-a" "c446c3d76e34a80910b17e6fb764972e51b2a8778fb0a94c9a9f4550e8be2e74"`
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling ux v0.1.2
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling os_bootinfo v0.2.1
[INFO] [stderr]    Compiling cpuio v0.2.0
[INFO] [stderr]    Compiling spin v0.4.9
[INFO] [stderr]    Compiling volatile v0.2.4
[INFO] [stderr]    Compiling pc-keyboard v0.3.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling pic8259_simple v0.1.1
[INFO] [stderr]    Compiling array-init v0.0.4
[INFO] [stderr]    Compiling bootloader_precompiled v0.2.0
[INFO] [stderr]    Compiling x86_64 v0.2.11
[INFO] [stderr]    Compiling x86_64 v0.3.4
[INFO] [stderr]    Compiling uart_16550 v0.1.0
[INFO] [stderr]    Compiling micecoreos v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/7fea0229842e79db1159ea58ad9a653b288efee9-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe.micecoreos.1bkc3vll-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe.micecoreos.1bkc3vll-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe.micecoreos.1bkc3vll-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe.micecoreos.1bkc3vll-cgu.3.rcgu.o" "-o" "/opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/7fea0229842e79db1159ea58ad9a653b288efee9-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libmicecoreos-6971850b0e2df7d1.rlib" "/opt/crater/target/debug/deps/libuart_16550-64091a4c1509bd8d.rlib" "/opt/crater/target/debug/deps/libx86_64-601b4edc007705d6.rlib" "/opt/crater/target/debug/deps/libpc_keyboard-ccaa84a0bb4b2bfb.rlib" "/opt/crater/target/debug/deps/libpic8259_simple-88aaf2a058a1da89.rlib" "/opt/crater/target/debug/deps/libcpuio-5bde1a851a6fbdd3.rlib" "/opt/crater/target/debug/deps/libx86_64-db2847ed9ba2a475.rlib" "/opt/crater/target/debug/deps/libux-80ee57f6e9477291.rlib" "/opt/crater/target/debug/deps/libarray_init-e5591fbd4fb7565b.rlib" "/opt/crater/target/debug/deps/libnodrop-7637edad4b6e3bcb.rlib" "/opt/crater/target/debug/deps/libusize_conversions-d8bd59a0349841cb.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-c2d05c0bd24423c5.rlib" "/opt/crater/target/debug/deps/libbit_field-6c331ed94e0165fc.rlib" "/opt/crater/target/debug/deps/libbitflags-ef069935de2e041e.rlib" "/opt/crater/target/debug/deps/libvolatile-a990c02d946cded9.rlib" "/opt/crater/target/debug/deps/liblazy_static-1ceae46d3d54a464.rlib" "/opt/crater/target/debug/deps/libspin-dff17b74aa8cf263.rlib" "/opt/crater/rustup-home/toolchains/7fea0229842e79db1159ea58ad9a653b288efee9-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-39348c626a7cd664.rlib" "/opt/crater/rustup-home/toolchains/7fea0229842e79db1159ea58ad9a653b288efee9-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-a98540404781e6a7.rlib" "/opt/crater/rustup-home/toolchains/7fea0229842e79db1159ea58ad9a653b288efee9-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f0f63061644276a5.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/micecoreos-d6883387dddfd7fe.micecoreos.1bkc3vll-cgu.1.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/main.rs:13: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `micecoreos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c446c3d76e34a80910b17e6fb764972e51b2a8778fb0a94c9a9f4550e8be2e74"`
[INFO] running `"docker" "rm" "-f" "c446c3d76e34a80910b17e6fb764972e51b2a8778fb0a94c9a9f4550e8be2e74"`
[INFO] [stdout] c446c3d76e34a80910b17e6fb764972e51b2a8778fb0a94c9a9f4550e8be2e74