[INFO] cloning repository https://github.com/scrogson/cosmos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scrogson/cosmos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrogson%2Fcosmos"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrogson%2Fcosmos'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c180829caef0868d5fe34d4a0d61fcfe5d060b50
[INFO] checking scrogson/cosmos against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrogson%2Fcosmos" "/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/scrogson/cosmos on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/scrogson/cosmos
[INFO] finished tweaking git repo https://github.com/scrogson/cosmos
[INFO] tweaked toml for git repo https://github.com/scrogson/cosmos written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/scrogson/cosmos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/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[INFO] the lockfile is outdated, regenerating it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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/phil-opp/multiboot2-elf64`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 2f7821b9f998e2918c3de5aac97488363e7fc04ebcd7db2d2a66e55c9d3c0aad
[INFO] running `"docker" "start" "-a" "2f7821b9f998e2918c3de5aac97488363e7fc04ebcd7db2d2a66e55c9d3c0aad"`
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking multiboot2 v0.8.2 (https://github.com/phil-opp/multiboot2-elf64#cb0284e2)
[INFO] [stderr]     Checking cosmos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/lib.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | #[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: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:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     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:126:22
[INFO] [stderr]     |
[INFO] [stderr] 126 |     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[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/memory/area_frame_allocator.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     areas: MemoryAreaIter,
[INFO] [stderr]   |            ^^^^^^^^^^^^^^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct AreaFrameAllocator<'a> {
[INFO] [stderr] 5 |     next_free_frame: Frame,
[INFO] [stderr] 6 |     current_area: Option<&'static MemoryArea>,
[INFO] [stderr] 7 |     areas: MemoryAreaIter<'a>,
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0106, E0522, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0106`.
[INFO] [stderr] error: could not compile `cosmos`.
[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[E0152]: found duplicate lang item `eh_personality`
[INFO] [stderr]   --> src/lib.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | / extern fn eh_personality() {
[INFO] [stderr] 65 | | }
[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:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | #[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: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:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     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:126:22
[INFO] [stderr]     |
[INFO] [stderr] 126 |     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[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/memory/area_frame_allocator.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     areas: MemoryAreaIter,
[INFO] [stderr]   |            ^^^^^^^^^^^^^^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct AreaFrameAllocator<'a> {
[INFO] [stderr] 5 |     next_free_frame: Frame,
[INFO] [stderr] 6 |     current_area: Option<&'static MemoryArea>,
[INFO] [stderr] 7 |     areas: MemoryAreaIter<'a>,
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0106, E0152, E0522, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0106`.
[INFO] [stderr] error: could not compile `cosmos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2f7821b9f998e2918c3de5aac97488363e7fc04ebcd7db2d2a66e55c9d3c0aad"`
[INFO] running `"docker" "rm" "-f" "2f7821b9f998e2918c3de5aac97488363e7fc04ebcd7db2d2a66e55c9d3c0aad"`
[INFO] [stdout] 2f7821b9f998e2918c3de5aac97488363e7fc04ebcd7db2d2a66e55c9d3c0aad