[INFO] cloning repository https://github.com/Pear0/rustos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pear0/rustos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPear0%2Frustos"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPear0%2Frustos'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e66205fdbaa627552b73c312719c8b8b68681e3d
[INFO] checking Pear0/rustos against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPear0%2Frustos" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Pear0/rustos on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Pear0/rustos
[INFO] finished tweaking git repo https://github.com/Pear0/rustos
[INFO] tweaked toml for git repo https://github.com/Pear0/rustos written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Pear0/rustos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1d7fc834489e0926d201ef6d4b42dc2ea2faaaec34c6a82fc7b45f8c98048f81
[INFO] running `"docker" "start" "-a" "1d7fc834489e0926d201ef6d4b42dc2ea2faaaec34c6a82fc7b45f8c98048f81"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bit_field v0.7.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking spin v0.4.5
[INFO] [stderr]     Checking volatile v0.1.0
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking multiboot2 v0.1.0
[INFO] [stderr]     Checking x86_64 v0.1.2
[INFO] [stderr]     Checking rustos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / bitflags! {
[INFO] [stderr] 37 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 38 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 39 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     }
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / bitflags! {
[INFO] [stderr] 37 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 38 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 39 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     }
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::ptr::Unique`
[INFO] [stderr]  --> src/memory/paging/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Level4`, `Table`
[INFO] [stderr]  --> src/memory/paging/mod.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use self::table::{Table, Level4};
[INFO] [stderr]   |                   ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Level1`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::table::{self, Table, Level4, Level1};
[INFO] [stderr]   |                                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `WRITABLE` is imported redundantly
[INFO] [stderr]    --> src/memory/paging/mod.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 14  | pub use self::entry::*;
[INFO] [stderr]     |         -------------- the item `WRITABLE` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 152 |             use self::entry::WRITABLE;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::entry::WRITABLE`
[INFO] [stderr]    --> src/memory/paging/mod.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |             use self::entry::WRITABLE;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | #[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<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/vga_buffer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]   --> src/vga_buffer.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     buffer: Unique<Buffer>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     p4: Unique<Table<Level4>>,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for type `core::ptr::Unique<vga_buffer::Buffer>` in the current scope
[INFO] [stderr]    --> src/vga_buffer.rs:103:30
[INFO] [stderr]     |
[INFO] [stderr] 103 |         unsafe { self.buffer.get_mut() }
[INFO] [stderr]     |                              ^^^^^^^ method not found in `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `core::ptr::Unique<_>`
[INFO] [stderr]               found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get` found for type `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>` in the current scope
[INFO] [stderr]   --> src/memory/paging/mapper.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |         unsafe { self.p4.get() }
[INFO] [stderr]    |                          ^^^ method not found in `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for type `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>` in the current scope
[INFO] [stderr]   --> src/memory/paging/mapper.rs:23:26
[INFO] [stderr]    |
[INFO] [stderr] 23 |         unsafe { self.p4.get_mut() }
[INFO] [stderr]    |                          ^^^^^^^ method not found in `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0522, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `rustos`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / bitflags! {
[INFO] [stderr] 37 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 38 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 39 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     }
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / bitflags! {
[INFO] [stderr] 37 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 38 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 39 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     }
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::ptr::Unique`
[INFO] [stderr]  --> src/memory/paging/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Level4`, `Table`
[INFO] [stderr]  --> src/memory/paging/mod.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use self::table::{Table, Level4};
[INFO] [stderr]   |                   ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Level1`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::table::{self, Table, Level4, Level1};
[INFO] [stderr]   |                                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `WRITABLE` is imported redundantly
[INFO] [stderr]    --> src/memory/paging/mod.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 14  | pub use self::entry::*;
[INFO] [stderr]     |         -------------- the item `WRITABLE` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 152 |             use self::entry::WRITABLE;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::entry::WRITABLE`
[INFO] [stderr]    --> src/memory/paging/mod.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |             use self::entry::WRITABLE;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: duplicate lang item found: `eh_personality`.
[INFO] [stderr]   --> src/lib.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | extern fn eh_personality() {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `panic_unwind` (which `std` depends on).
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | #[lang = "panic_fmt"] 
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/vga_buffer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]   --> src/vga_buffer.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     buffer: Unique<Buffer>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use core::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     p4: Unique<Table<Level4>>,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/vga_buffer.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for type `core::ptr::Unique<vga_buffer::Buffer>` in the current scope
[INFO] [stderr]    --> src/vga_buffer.rs:103:30
[INFO] [stderr]     |
[INFO] [stderr] 103 |         unsafe { self.buffer.get_mut() }
[INFO] [stderr]     |                              ^^^^^^^ method not found in `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/vga_buffer.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |         buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mapper.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             p4: Unique::new(table::P4),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^ expected struct `core::ptr::Unique`, found enum `core::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `core::ptr::Unique<_>`
[INFO] [stderr]               found type `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get` found for type `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>` in the current scope
[INFO] [stderr]   --> src/memory/paging/mapper.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |         unsafe { self.p4.get() }
[INFO] [stderr]    |                          ^^^ method not found in `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for type `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>` in the current scope
[INFO] [stderr]   --> src/memory/paging/mapper.rs:23:26
[INFO] [stderr]    |
[INFO] [stderr] 23 |         unsafe { self.p4.get_mut() }
[INFO] [stderr]    |                          ^^^^^^^ method not found in `core::ptr::Unique<memory::paging::table::Table<memory::paging::table::Level4>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0152, E0308, E0522, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `rustos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1d7fc834489e0926d201ef6d4b42dc2ea2faaaec34c6a82fc7b45f8c98048f81"`
[INFO] running `"docker" "rm" "-f" "1d7fc834489e0926d201ef6d4b42dc2ea2faaaec34c6a82fc7b45f8c98048f81"`
[INFO] [stdout] 1d7fc834489e0926d201ef6d4b42dc2ea2faaaec34c6a82fc7b45f8c98048f81