[INFO] updating cached repository https://github.com/spwilson2/armos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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] 5468ba5dce115a7f572911f0b654e2d74186fd31
[INFO] testing spwilson2/armos against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspwilson2%2Farmos" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spwilson2/armos on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/spwilson2/armos
[INFO] finished tweaking git repo https://github.com/spwilson2/armos
[INFO] tweaked toml for git repo https://github.com/spwilson2/armos written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/spwilson2/armos already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 4975025af403bd7e98befed73283c6258de93b2801ef5a9017875f8447e5af19
[INFO] running `"docker" "start" "-a" "4975025af403bd7e98befed73283c6258de93b2801ef5a9017875f8447e5af19"`
[INFO] [stderr] warning: unused manifest key: profile.debug
[INFO] [stderr] warning: use `[profile.dev]` to configure debug builds
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stderr]    Compiling kernel v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `self::arch`
[INFO] [stderr]  --> src/arch/mod.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub use self::arch::*;
[INFO] [stderr]   |               ^^^^ could not find `arch` in `self`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `println!` in this scope
[INFO] [stderr]   --> src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     println!("Hello world!\r\n");
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `uart`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     uart::init();
[INFO] [stderr]    |     ^^^^ use of undeclared type or module `uart`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `println!` in this scope
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     println!("    {}", fmt);
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `println!` in this scope
[INFO] [stderr]   --> src/lib.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     println!("\n\nKERNEL PANIC in {} at line {}:", file, line);
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(rustc_private, start, lang_items, asm, naked_functions, unique, const_fn, core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[lang = "panic_fmt"] 
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stderr] 
[INFO] [stderr] error: `#[panic_handler]` function required, but not found
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433, E0522, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `kernel`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4975025af403bd7e98befed73283c6258de93b2801ef5a9017875f8447e5af19"`
[INFO] running `"docker" "rm" "-f" "4975025af403bd7e98befed73283c6258de93b2801ef5a9017875f8447e5af19"`
[INFO] [stdout] 4975025af403bd7e98befed73283c6258de93b2801ef5a9017875f8447e5af19