[INFO] updating cached repository https://github.com/1byte2bytes/rust-kernel
[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] deb5fb4f678373986f3ac0b5fcc02f2bf83490db
[INFO] checking 1byte2bytes/rust-kernel against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1byte2bytes%2Frust-kernel" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1byte2bytes/rust-kernel on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/1byte2bytes/rust-kernel
[INFO] finished tweaking git repo https://github.com/1byte2bytes/rust-kernel
[INFO] tweaked toml for git repo https://github.com/1byte2bytes/rust-kernel written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/1byte2bytes/rust-kernel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/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[INFO] the lockfile is outdated, regenerating it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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 45dbf09db5c391320b0405b5234011dba64b8e663ca507bd2bdaaa84eca58b50
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "45dbf09db5c391320b0405b5234011dba64b8e663ca507bd2bdaaa84eca58b50"`
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking volatile v0.1.0
[INFO] [stderr]     Checking rlibc v0.1.5
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking spin v0.3.5
[INFO] [stderr]     Checking multiboot2 v0.1.0
[INFO] [stderr]     Checking syd_os v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 36 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 37 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     }
[INFO] [stderr] 47 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z 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:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 36 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 37 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     }
[INFO] [stderr] 47 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::entry::HUGE_PAGE`
[INFO] [stderr]   --> src/memory/paging/mod.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         use self::entry::HUGE_PAGE;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | #[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:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | 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:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |     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:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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'
[INFO] [stderr]   --> src/vga_buffer.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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 struct `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                 found enum `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     panic!();
[INFO] [stderr]    |     --------- any code following this expression is unreachable
[INFO] [stderr] 76 | 
[INFO] [stderr] 77 |     loop{}
[INFO] [stderr]    |     ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for struct `core::ptr::Unique<vga_buffer::Buffer>` in the current scope
[INFO] [stderr]   --> src/vga_buffer.rs:86:29
[INFO] [stderr]    |
[INFO] [stderr] 86 |         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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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 struct `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                  found enum `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0271]: type mismatch resolving `<[closure@src/memory/paging/mod.rs:39:25: 41:10] as core::ops::FnOnce<()>>::Output == core::option::Option<memory::Frame>`
[INFO] [stderr]   --> src/memory/paging/mod.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |             .or_else(huge_page)
[INFO] [stderr]    |              ^^^^^^^ expected `()`, found enum `core::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected unit type `()`
[INFO] [stderr]                    found enum `core::option::Option<memory::Frame>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 36 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 37 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     }
[INFO] [stderr] 47 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn p4_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 50 |         (self.number >> 27) & 0o777;
[INFO] [stderr]    |                                    - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn p3_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 54 |         (self.number >> 18) & 0o777;
[INFO] [stderr]    |                                    - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub flags EntryFlags: u64 {
[INFO] [stderr] 36 | |         const PRESENT =         1 << 0,
[INFO] [stderr] 37 | |         const WRITABLE =        1 << 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     }
[INFO] [stderr] 47 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn p2_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 58 |         (self.number >> 9) & 0o777;
[INFO] [stderr]    |                                   - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:61:27
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn p1_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 62 |         (self.number >> 0) & 0o777;
[INFO] [stderr]    |                                   - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::entry::HUGE_PAGE`
[INFO] [stderr]   --> src/memory/paging/mod.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         use self::entry::HUGE_PAGE;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0615]: attempted to take value of method `start_address` on type `memory::Frame`
[INFO] [stderr]   --> src/memory/paging/entry.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert!(frame.start_address & !0x000fffff_fffff000 == 0);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ method, not a field
[INFO] [stderr]    |
[INFO] [stderr] help: use parentheses to call the method
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert!(frame.start_address() & !0x000fffff_fffff000 == 0);
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stderr]   --> src/lib.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 | #[lang = "eh_personality"] extern fn eh_personality() {}
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is 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:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | #[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:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | 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:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |     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:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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: aborting due to 17 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0271, E0308, E0522, E0599, E0615, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0271`.
[INFO] [stderr] error: could not compile `syd_os`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> src/vga_buffer.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |     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 struct `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                 found enum `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     panic!();
[INFO] [stderr]    |     --------- any code following this expression is unreachable
[INFO] [stderr] 76 | 
[INFO] [stderr] 77 |     loop{}
[INFO] [stderr]    |     ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_mut` found for struct `core::ptr::Unique<vga_buffer::Buffer>` in the current scope
[INFO] [stderr]   --> src/vga_buffer.rs:86:29
[INFO] [stderr]    |
[INFO] [stderr] 86 |         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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |         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 struct `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr]                  found enum `core::option::Option<core::ptr::Unique<_>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0271]: type mismatch resolving `<[closure@src/memory/paging/mod.rs:39:25: 41:10] as core::ops::FnOnce<()>>::Output == core::option::Option<memory::Frame>`
[INFO] [stderr]   --> src/memory/paging/mod.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |             .or_else(huge_page)
[INFO] [stderr]    |              ^^^^^^^ expected `()`, found enum `core::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected unit type `()`
[INFO] [stderr]                    found enum `core::option::Option<memory::Frame>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn p4_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 50 |         (self.number >> 27) & 0o777;
[INFO] [stderr]    |                                    - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn p3_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 54 |         (self.number >> 18) & 0o777;
[INFO] [stderr]    |                                    - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn p2_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 58 |         (self.number >> 9) & 0o777;
[INFO] [stderr]    |                                   - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/memory/paging/mod.rs:61:27
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn p1_index(&self) -> usize {
[INFO] [stderr]    |        --------           ^^^^^ expected `usize`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 62 |         (self.number >> 0) & 0o777;
[INFO] [stderr]    |                                   - help: consider removing this semicolon
[INFO] [stderr] 
[INFO] [stderr] error[E0615]: attempted to take value of method `start_address` on type `memory::Frame`
[INFO] [stderr]   --> src/memory/paging/entry.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert!(frame.start_address & !0x000fffff_fffff000 == 0);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ method, not a field
[INFO] [stderr]    |
[INFO] [stderr] help: use parentheses to call the method
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert!(frame.start_address() & !0x000fffff_fffff000 == 0);
[INFO] [stderr]    |                                    ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 17 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0152, E0271, E0308, E0522, E0599, E0615, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `syd_os`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "45dbf09db5c391320b0405b5234011dba64b8e663ca507bd2bdaaa84eca58b50"`
[INFO] running `"docker" "rm" "-f" "45dbf09db5c391320b0405b5234011dba64b8e663ca507bd2bdaaa84eca58b50"`
[INFO] [stdout] 45dbf09db5c391320b0405b5234011dba64b8e663ca507bd2bdaaa84eca58b50
