[INFO] cloning repository https://github.com/obscuren/jev_os [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/obscuren/jev_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobscuren%2Fjev_os"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobscuren%2Fjev_os'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 10cc2e61b30f2aa3ff02f33d016195c1c66f2b2b [INFO] testing obscuren/jev_os against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobscuren%2Fjev_os" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/obscuren/jev_os on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/obscuren/jev_os [INFO] finished tweaking git repo https://github.com/obscuren/jev_os [INFO] tweaked toml for git repo https://github.com/obscuren/jev_os written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/obscuren/jev_os already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/phil-opp/multiboot2-elf64` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=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" "+1.44.0" "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] 9b2d225780f5c7818d2b0794caedba91a82514b8454f8d3583f3abbdfb99776f [INFO] running `"docker" "start" "-a" "9b2d225780f5c7818d2b0794caedba91a82514b8454f8d3583f3abbdfb99776f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling rlibc v1.0.0 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling multiboot2 v0.8.2 (https://github.com/phil-opp/multiboot2-elf64#cb0284e2) [INFO] [stderr] Compiling jev_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(no_std, lang_items)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(const_fn, unique, core_str_ext, iter_cmp)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | #![feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(unique)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | #![feature(core_str_ext)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt` [INFO] [stderr] --> src/lib.rs:68:1 [INFO] [stderr] | [INFO] [stderr] 68 | #[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[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData` (if you also use `#[may_dangle]`), `Send`, and/or `Sync` [INFO] [stderr] --> src/vga_buffer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use core::ptr::Unique; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData` (if you also use `#[may_dangle]`), `Send`, and/or `Sync` [INFO] [stderr] --> src/vga_buffer.rs:70:13 [INFO] [stderr] | [INFO] [stderr] 70 | buffer: Unique, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData` (if you also use `#[may_dangle]`), `Send`, and/or `Sync` [INFO] [stderr] --> src/vga_buffer.rs:144:22 [INFO] [stderr] | [INFO] [stderr] 144 | buffer: unsafe { Unique::new(0xb8000 as *mut _) }, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData` (if you also use `#[may_dangle]`), `Send`, and/or `Sync` [INFO] [stderr] --> src/vga_buffer.rs:78:30 [INFO] [stderr] | [INFO] [stderr] 78 | buffer: unsafe { Unique::new(0xb8000 as *mut _) }, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0106]: missing lifetime specifier [INFO] [stderr] --> src/memory/area_frame_allocator.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | areas: MemoryAreaIter, [INFO] [stderr] | ^^^^^^^^^^^^^^ expected named lifetime parameter [INFO] [stderr] | [INFO] [stderr] help: consider introducing a named lifetime parameter [INFO] [stderr] | [INFO] [stderr] 4 | pub struct AreaFrameAllocator<'a> { [INFO] [stderr] 5 | next_free_frame: Frame, [INFO] [stderr] 6 | current_area: Option<&'static MemoryArea>, [INFO] [stderr] 7 | areas: MemoryAreaIter<'a>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] error: aborting due to 12 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0106, E0522, E0554, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0106`. [INFO] [stderr] error: could not compile `jev_os`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "9b2d225780f5c7818d2b0794caedba91a82514b8454f8d3583f3abbdfb99776f"` [INFO] running `"docker" "rm" "-f" "9b2d225780f5c7818d2b0794caedba91a82514b8454f8d3583f3abbdfb99776f"` [INFO] [stdout] 9b2d225780f5c7818d2b0794caedba91a82514b8454f8d3583f3abbdfb99776f