[INFO] cloning repository https://github.com/albertobaselga/abf-kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/albertobaselga/abf-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertobaselga%2Fabf-kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertobaselga%2Fabf-kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 885fee35598c9fd9ac376d4e69e23a9421769f92
[INFO] building albertobaselga/abf-kernel against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertobaselga%2Fabf-kernel" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/albertobaselga/abf-kernel on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/albertobaselga/abf-kernel
[INFO] finished tweaking git repo https://github.com/albertobaselga/abf-kernel
[INFO] tweaked toml for git repo https://github.com/albertobaselga/abf-kernel written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/albertobaselga/abf-kernel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db93697efaf65cd0e4e0d56e520bdbca285b1166849e307906a6e4985ded7417
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db93697efaf65cd0e4e0d56e520bdbca285b1166849e307906a6e4985ded7417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db93697efaf65cd0e4e0d56e520bdbca285b1166849e307906a6e4985ded7417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db93697efaf65cd0e4e0d56e520bdbca285b1166849e307906a6e4985ded7417", kill_on_drop: false }`
[INFO] [stdout] db93697efaf65cd0e4e0d56e520bdbca285b1166849e307906a6e4985ded7417
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a92c7b55ef7e611e26a025a4d3f04a90b37696a804a0f087f24f806e39408bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2a92c7b55ef7e611e26a025a4d3f04a90b37696a804a0f087f24f806e39408bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlibc v0.1.4
[INFO] [stderr]    Compiling spin v0.3.4
[INFO] [stderr]    Compiling abf_kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stdout]   --> src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[lang = "panic_fmt"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]  --> src/vga_buffer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::ptr::Unique;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]   --> src/vga_buffer.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]   --> src/vga_buffer.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     buffer: Unique<Buffer>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]   --> src/vga_buffer.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/vga_buffer.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     buffer: unsafe { Unique::new(0xb8000 as *mut _) },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Unique`, found enum `Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Unique<Buffer>`
[INFO] [stdout]                 found enum `Option<Unique<_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for struct `Unique<Buffer>` in the current scope
[INFO] [stdout]    --> src/vga_buffer.rs:81:30
[INFO] [stdout]     |
[INFO] [stdout] 81  |         unsafe { self.buffer.get_mut() }
[INFO] [stdout]     |                              ^^^^^^^ method not found in `Unique<Buffer>`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 81  |         unsafe { Pin::new(&mut self.buffer).get_mut() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0522, E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `abf_kernel`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2a92c7b55ef7e611e26a025a4d3f04a90b37696a804a0f087f24f806e39408bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a92c7b55ef7e611e26a025a4d3f04a90b37696a804a0f087f24f806e39408bd", kill_on_drop: false }`
[INFO] [stdout] 2a92c7b55ef7e611e26a025a4d3f04a90b37696a804a0f087f24f806e39408bd
