[INFO] updating cached repository https://github.com/mpajkowski/micecoreos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1b30500bf683764ce1a603d33226b9806fdecf8
[INFO] testing mpajkowski/micecoreos against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpajkowski%2Fmicecoreos" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpajkowski/micecoreos on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mpajkowski/micecoreos
[INFO] finished tweaking git repo https://github.com/mpajkowski/micecoreos
[INFO] tweaked toml for git repo https://github.com/mpajkowski/micecoreos written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mpajkowski/micecoreos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07480d32e482d9aab914fab4ea1baeaeba86579efab2fb94ea9a5bb070b845d0
[INFO] running `"docker" "start" "-a" "07480d32e482d9aab914fab4ea1baeaeba86579efab2fb94ea9a5bb070b845d0"`
[INFO] [stderr]    Compiling os_bootinfo v0.2.1
[INFO] [stderr]    Compiling ux v0.1.2
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling spin v0.4.9
[INFO] [stderr]    Compiling cpuio v0.2.0
[INFO] [stderr]    Compiling pc-keyboard v0.3.1
[INFO] [stderr]    Compiling volatile v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling array-init v0.0.4
[INFO] [stderr]    Compiling pic8259_simple v0.1.1
[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/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/micecoreos-3257ee7190d42c3c.micecoreos.8nx1014r-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/micecoreos-3257ee7190d42c3c.micecoreos.8nx1014r-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/micecoreos-3257ee7190d42c3c.micecoreos.8nx1014r-cgu.2.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/micecoreos-3257ee7190d42c3c" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmicecoreos-75168c9d6dd16767.rlib" "/opt/rustwide/target/debug/deps/libuart_16550-91079a0af9652fd5.rlib" "/opt/rustwide/target/debug/deps/libx86_64-e8547cd0960dc01c.rlib" "/opt/rustwide/target/debug/deps/libpc_keyboard-e731642fd69974f6.rlib" "/opt/rustwide/target/debug/deps/libpic8259_simple-b0c36641067d4f15.rlib" "/opt/rustwide/target/debug/deps/libcpuio-d679d045f3f5d1c4.rlib" "/opt/rustwide/target/debug/deps/libx86_64-69523d9e9278a261.rlib" "/opt/rustwide/target/debug/deps/libux-78a1a6ba31f82b14.rlib" "/opt/rustwide/target/debug/deps/libarray_init-7df778ae37ed06cd.rlib" "/opt/rustwide/target/debug/deps/libnodrop-062f6d565c610ff5.rlib" "/opt/rustwide/target/debug/deps/libusize_conversions-32847f88f6c29855.rlib" "/opt/rustwide/target/debug/deps/libos_bootinfo-0eb5b3efa6c8855e.rlib" "/opt/rustwide/target/debug/deps/libbit_field-8ac51ce003a1adbd.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e926485744da2fe8.rlib" "/opt/rustwide/target/debug/deps/libvolatile-caf597196b49443e.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-5019e3cf41b4603c.rlib" "/opt/rustwide/target/debug/deps/libspin-290ec2e457634f45.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-b6806800b307d4b9.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-e49d7651b12f7563.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-e8266574e26adcc3.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/rustwide/target/debug/deps/micecoreos-3257ee7190d42c3c.micecoreos.8nx1014r-cgu.2.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/rustwide/workdir/src/main.rs:13: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[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" "07480d32e482d9aab914fab4ea1baeaeba86579efab2fb94ea9a5bb070b845d0"`
[INFO] running `"docker" "rm" "-f" "07480d32e482d9aab914fab4ea1baeaeba86579efab2fb94ea9a5bb070b845d0"`
[INFO] [stdout] 07480d32e482d9aab914fab4ea1baeaeba86579efab2fb94ea9a5bb070b845d0