[INFO] updating cached repository albertobaselga/abf-kernel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/albertobaselga/abf-kernel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/albertobaselga/abf-kernel" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/albertobaselga/abf-kernel"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/albertobaselga/abf-kernel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/albertobaselga/abf-kernel" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/albertobaselga/abf-kernel"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/albertobaselga/abf-kernel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 885fee35598c9fd9ac376d4e69e23a9421769f92
[INFO] sha for GitHub repo albertobaselga/abf-kernel: 885fee35598c9fd9ac376d4e69e23a9421769f92
[INFO] validating manifest of albertobaselga/abf-kernel on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of albertobaselga/abf-kernel on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing albertobaselga/abf-kernel
[INFO] finished frobbing albertobaselga/abf-kernel
[INFO] frobbed toml for albertobaselga/abf-kernel written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/albertobaselga/abf-kernel/Cargo.toml
[INFO] started frobbing albertobaselga/abf-kernel
[INFO] finished frobbing albertobaselga/abf-kernel
[INFO] frobbed toml for albertobaselga/abf-kernel written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/albertobaselga/abf-kernel/Cargo.toml
[INFO] crate albertobaselga/abf-kernel already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/albertobaselga/abf-kernel/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking albertobaselga/abf-kernel against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-3/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/albertobaselga/abf-kernel:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dc8a19f5f42e0bd6f0000de7207f64933fbe90ccd8b50a4ce7e98fe398bffa43
[INFO] running `"docker" "start" "-a" "dc8a19f5f42e0bd6f0000de7207f64933fbe90ccd8b50a4ce7e98fe398bffa43"`
[INFO] [stderr]     Checking spin v0.3.5
[INFO] [stderr]     Checking abf_kernel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[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: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/vga_buffer.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |     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'
[INFO] [stderr]   --> src/vga_buffer.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:81:30
[INFO] [stderr]    |
[INFO] [stderr] 81 |         unsafe { self.buffer.get_mut() }
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 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 `abf_kernel`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: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/vga_buffer.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |     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'
[INFO] [stderr]   --> src/vga_buffer.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     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:81:30
[INFO] [stderr]    |
[INFO] [stderr] 81 |         unsafe { self.buffer.get_mut() }
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `abf_kernel`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dc8a19f5f42e0bd6f0000de7207f64933fbe90ccd8b50a4ce7e98fe398bffa43"`
[INFO] running `"docker" "rm" "-f" "dc8a19f5f42e0bd6f0000de7207f64933fbe90ccd8b50a4ce7e98fe398bffa43"`
[INFO] [stdout] dc8a19f5f42e0bd6f0000de7207f64933fbe90ccd8b50a4ce7e98fe398bffa43