[INFO] updating cached repository https://github.com/nicholasfagan/asmos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] cbefbf8464116cb643c028e2be44250e78e085f8
[INFO] checking nicholasfagan/asmos against try#b19afc12c4f781e95f168f2fdea339c972f14ae2 for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fasmos" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nicholasfagan/asmos on toolchain b19afc12c4f781e95f168f2fdea339c972f14ae2-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nicholasfagan/asmos
[INFO] finished tweaking git repo https://github.com/nicholasfagan/asmos
[INFO] tweaked toml for git repo https://github.com/nicholasfagan/asmos written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nicholasfagan/asmos already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c6287b9a2218b59ac0fa8fecfd2b88faf88e87875c9993ad883447890aec4bd
[INFO] running `"docker" "start" "-a" "4c6287b9a2218b59ac0fa8fecfd2b88faf88e87875c9993ad883447890aec4bd"`
[INFO] [stderr]    Compiling bootloader v0.7.1
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking bitflags v1.1.0
[INFO] [stderr]     Checking x86_64 v0.7.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking asmos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/vga.rs:167:23
[INFO] [stderr]     |
[INFO] [stderr] 167 |     ($($arg:tt)*) => ($crate::vga::_print(format_args!($($arg)*)));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:29:5
[INFO] [stderr]     |
[INFO] [stderr] 29  |     println!("Passing control to kmain().");
[INFO] [stderr]     |     ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `asmos`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4c6287b9a2218b59ac0fa8fecfd2b88faf88e87875c9993ad883447890aec4bd"`
[INFO] running `"docker" "rm" "-f" "4c6287b9a2218b59ac0fa8fecfd2b88faf88e87875c9993ad883447890aec4bd"`
[INFO] [stdout] 4c6287b9a2218b59ac0fa8fecfd2b88faf88e87875c9993ad883447890aec4bd