Dec 19 12:05:21.485 INFO checking nahidaislam/Operatingsystem-ID1206 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:05:21.485 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/nahidaislam/Operatingsystem-ID1206:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:05:21.733 INFO [stdout] ba06f002d7d29debeac97f3f76c5ff476a916b8240d6e408e0a8069560a88681
Dec 19 12:05:21.735 INFO running `"docker" "start" "-a" "ba06f002d7d29debeac97f3f76c5ff476a916b8240d6e408e0a8069560a88681"`
Dec 19 12:05:22.322 INFO [stderr]     Checking spin v0.4.5
Dec 19 12:05:22.335 INFO [stderr]     Checking bitflags v0.4.0
Dec 19 12:05:22.335 INFO [stderr]     Checking bit_field v0.7.0
Dec 19 12:05:22.335 INFO [stderr]     Checking rlibc v1.0.0
Dec 19 12:05:22.335 INFO [stderr]     Checking once v0.3.3
Dec 19 12:05:22.335 INFO [stderr]     Checking volatile v0.1.0
Dec 19 12:05:22.649 INFO [stderr]     Checking multiboot2 v0.1.0
Dec 19 12:05:22.679 INFO [stderr]     Checking linked_list_allocator v0.4.2
Dec 19 12:05:22.810 INFO [stderr]     Checking x86_64 v0.1.2
Dec 19 12:05:22.839 INFO [stderr] error[E0432]: unresolved import `alloc::allocator`
Dec 19 12:05:22.839 INFO [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/lib.rs:17:12
Dec 19 12:05:22.839 INFO [stderr]    |
Dec 19 12:05:22.839 INFO [stderr] 17 | use alloc::allocator::{Alloc, Layout, AllocErr};
Dec 19 12:05:22.839 INFO [stderr]    |            ^^^^^^^^^ could not find `allocator` in `alloc`
Dec 19 12:05:22.839 INFO [stderr] 
Dec 19 12:05:22.839 INFO [stderr] error[E0432]: unresolved import `alloc::allocator`
Dec 19 12:05:22.839 INFO [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/hole.rs:3:12
Dec 19 12:05:22.839 INFO [stderr]   |
Dec 19 12:05:22.839 INFO [stderr] 3 | use alloc::allocator::{Layout, AllocErr};
Dec 19 12:05:22.839 INFO [stderr]   |            ^^^^^^^^^ could not find `allocator` in `alloc`
Dec 19 12:05:22.839 INFO [stderr] 
Dec 19 12:05:22.846 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
Dec 19 12:05:22.846 INFO [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/hole.rs:1:5
Dec 19 12:05:22.846 INFO [stderr]   |
Dec 19 12:05:22.846 INFO [stderr] 1 | use core::ptr::Unique;
Dec 19 12:05:22.846 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 19 12:05:22.846 INFO [stderr]   |
Dec 19 12:05:22.846 INFO [stderr]   = help: add #![feature(ptr_internals)] to the crate attributes to enable
Dec 19 12:05:22.846 INFO [stderr] 
Dec 19 12:05:22.846 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
Dec 19 12:05:22.846 INFO [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/hole.rs:94:18
Dec 19 12:05:22.846 INFO [stderr]    |
Dec 19 12:05:22.846 INFO [stderr] 94 |     next: Option<Unique<Hole>>,
Dec 19 12:05:22.846 INFO [stderr]    |                  ^^^^^^^^^^^^
Dec 19 12:05:22.846 INFO [stderr]    |
Dec 19 12:05:22.846 INFO [stderr]    = help: add #![feature(ptr_internals)] to the crate attributes to enable
Dec 19 12:05:22.846 INFO [stderr] 
Dec 19 12:05:22.846 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
Dec 19 12:05:22.846 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/hole.rs:304:43
Dec 19 12:05:22.846 INFO [stderr]     |
Dec 19 12:05:22.846 INFO [stderr] 304 |                 hole.next = Some(unsafe { Unique::new_unchecked(ptr) });
Dec 19 12:05:22.846 INFO [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:05:22.846 INFO [stderr]     |
Dec 19 12:05:22.846 INFO [stderr]     = help: add #![feature(ptr_internals)] to the crate attributes to enable
Dec 19 12:05:22.846 INFO [stderr] 
Dec 19 12:05:22.846 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
Dec 19 12:05:22.846 INFO [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.4.2/src/hole.rs:41:28
Dec 19 12:05:22.846 INFO [stderr]    |
Dec 19 12:05:22.846 INFO [stderr] 41 |                 next: Some(Unique::new_unchecked(ptr)),
Dec 19 12:05:22.846 INFO [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:05:22.846 INFO [stderr]    |
Dec 19 12:05:22.846 INFO [stderr]    = help: add #![feature(ptr_internals)] to the crate attributes to enable
Dec 19 12:05:22.846 INFO [stderr] 
Dec 19 12:05:22.846 INFO [stderr] error: aborting due to 6 previous errors
Dec 19 12:05:22.846 INFO [stderr] 
Dec 19 12:05:22.846 INFO [stderr] Some errors occurred: E0432, E0658.
Dec 19 12:05:22.846 INFO [stderr] For more information about an error, try `rustc --explain E0432`.
Dec 19 12:05:22.853 INFO [stderr] error: Could not compile `linked_list_allocator`.
Dec 19 12:05:22.853 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 12:05:23.467 INFO [stderr] error: build failed
Dec 19 12:05:23.715 INFO running `"docker" "inspect" "ba06f002d7d29debeac97f3f76c5ff476a916b8240d6e408e0a8069560a88681"`
Dec 19 12:05:23.826 INFO running `"docker" "rm" "-f" "ba06f002d7d29debeac97f3f76c5ff476a916b8240d6e408e0a8069560a88681"`
Dec 19 12:05:23.910 INFO [stdout] ba06f002d7d29debeac97f3f76c5ff476a916b8240d6e408e0a8069560a88681