[INFO] updating cached repository https://github.com/chansuke/runux
[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] 9f0b26308dbcb0ee3d42dc87e12453dd13cce4bf
[INFO] checking chansuke/runux against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchansuke%2Frunux" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chansuke/runux on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chansuke/runux
[INFO] finished tweaking git repo https://github.com/chansuke/runux
[INFO] tweaked toml for git repo https://github.com/chansuke/runux written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/chansuke/runux already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/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[INFO] the lockfile is outdated, regenerating it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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] cf9a2ea5dbbb58342973c78d3f575e27810d4d3277c5a459f47c3fa0a4b9aeb2
[INFO] running `"docker" "start" "-a" "cf9a2ea5dbbb58342973c78d3f575e27810d4d3277c5a459f47c3fa0a4b9aeb2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking runux v0.1.0 (/opt/rustwide/workdir)
[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:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | 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:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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[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:74:29
[INFO] [stderr]    |
[INFO] [stderr] 74 |         unsafe{ self.buffer.get_mut() }
[INFO] [stderr]    |                             ^^^^^^^ method not found in `core::ptr::Unique<vga_buffer::Buffer>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 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 `runux`.
[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': use `NonNull` instead and consider `PhantomData<T>` (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]   = 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:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |             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[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:74:29
[INFO] [stderr]    |
[INFO] [stderr] 74 |         unsafe{ self.buffer.get_mut() }
[INFO] [stderr]    |                             ^^^^^^^ method not found in `core::ptr::Unique<vga_buffer::Buffer>`
[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 `runux`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cf9a2ea5dbbb58342973c78d3f575e27810d4d3277c5a459f47c3fa0a4b9aeb2"`
[INFO] running `"docker" "rm" "-f" "cf9a2ea5dbbb58342973c78d3f575e27810d4d3277c5a459f47c3fa0a4b9aeb2"`
[INFO] [stdout] cf9a2ea5dbbb58342973c78d3f575e27810d4d3277c5a459f47c3fa0a4b9aeb2
