[INFO] crate iobuf 5.8.1 is already in cache
[INFO] extracting crate iobuf 5.8.1 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/iobuf/5.8.1
[INFO] extracting crate iobuf 5.8.1 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/iobuf/5.8.1
[INFO] validating manifest of iobuf-5.8.1 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of iobuf-5.8.1 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing iobuf-5.8.1
[INFO] finished frobbing iobuf-5.8.1
[INFO] frobbed toml for iobuf-5.8.1 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/iobuf/5.8.1/Cargo.toml
[INFO] started frobbing iobuf-5.8.1
[INFO] finished frobbing iobuf-5.8.1
[INFO] frobbed toml for iobuf-5.8.1 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/iobuf/5.8.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking iobuf-5.8.1 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/iobuf/5.8.1:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b4cd07cdd3dd29d6abb112294d6422d9075f083c4c817d8decb2b7f886fd876c
[INFO] running `"docker" "start" "-a" "b4cd07cdd3dd29d6abb112294d6422d9075f083c4c817d8decb2b7f886fd876c"`
[INFO] [stderr] warning: profile `doc` is deprecated and has no effect
[INFO] [stderr]     Checking iobuf v5.8.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]  --> src/raw.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::heap::{Heap, Alloc, Layout};
[INFO] [stderr]   |            ^^^^ could not find `heap` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/raw.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/iobuf.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/impls.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]  --> src/raw.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::heap::{Heap, Alloc, Layout};
[INFO] [stderr]   |            ^^^^ could not find `heap` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/raw.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/iobuf.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]  --> src/impls.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::nonzero::NonZero;
[INFO] [stderr]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/raw.rs:97:35
[INFO] [stderr]    |
[INFO] [stderr] 97 |           let allocator: &Arc<Box<Allocator>> = mem::transmute(&raw_allocator);
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:168:29
[INFO] [stderr]     |
[INFO] [stderr] 168 |   allocator: Option<Arc<Box<Allocator>>>,
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:296:60
[INFO] [stderr]     |
[INFO] [stderr] 296 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:541:67
[INFO] [stderr]     |
[INFO] [stderr] 541 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:575:70
[INFO] [stderr]     |
[INFO] [stderr] 575 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:598:62
[INFO] [stderr]     |
[INFO] [stderr] 598 |   pub fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                              ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/iobuf.rs:50:58
[INFO] [stderr]    |
[INFO] [stderr] 50 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static>;
[INFO] [stderr]    |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:302:67
[INFO] [stderr]     |
[INFO] [stderr] 302 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> ROIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:329:70
[INFO] [stderr]     |
[INFO] [stderr] 329 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> ROIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:395:60
[INFO] [stderr]     |
[INFO] [stderr] 395 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:422:67
[INFO] [stderr]     |
[INFO] [stderr] 422 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:473:70
[INFO] [stderr]     |
[INFO] [stderr] 473 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:968:58
[INFO] [stderr]     |
[INFO] [stderr] 968 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/impls.rs:1181:58
[INFO] [stderr]      |
[INFO] [stderr] 1181 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]      |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/impls.rs:1390:58
[INFO] [stderr]      |
[INFO] [stderr] 1390 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]      |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/appendbuf.rs:70:60
[INFO] [stderr]    |
[INFO] [stderr] 70 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> AppendBuf<'static> {
[INFO] [stderr]    |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/raw.rs:97:35
[INFO] [stderr]    |
[INFO] [stderr] 97 |           let allocator: &Arc<Box<Allocator>> = mem::transmute(&raw_allocator);
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:168:29
[INFO] [stderr]     |
[INFO] [stderr] 168 |   allocator: Option<Arc<Box<Allocator>>>,
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:296:60
[INFO] [stderr]     |
[INFO] [stderr] 296 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:541:67
[INFO] [stderr]     |
[INFO] [stderr] 541 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:575:70
[INFO] [stderr]     |
[INFO] [stderr] 575 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:598:62
[INFO] [stderr]     |
[INFO] [stderr] 598 |   pub fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RawIobuf<'static> {
[INFO] [stderr]     |                                                              ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/iobuf.rs:50:58
[INFO] [stderr]    |
[INFO] [stderr] 50 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static>;
[INFO] [stderr]    |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:302:67
[INFO] [stderr]     |
[INFO] [stderr] 302 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> ROIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:329:70
[INFO] [stderr]     |
[INFO] [stderr] 329 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> ROIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:395:60
[INFO] [stderr]     |
[INFO] [stderr] 395 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:422:67
[INFO] [stderr]     |
[INFO] [stderr] 422 |   pub fn from_str_copy_with_allocator(s: &str, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:473:70
[INFO] [stderr]     |
[INFO] [stderr] 473 |   pub fn from_slice_copy_with_allocator(s: &[u8], allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/impls.rs:968:58
[INFO] [stderr]     |
[INFO] [stderr] 968 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]     |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/impls.rs:1181:58
[INFO] [stderr]      |
[INFO] [stderr] 1181 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]      |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/impls.rs:1390:58
[INFO] [stderr]      |
[INFO] [stderr] 1390 |   fn deep_clone_with_allocator(&self, allocator: Arc<Box<Allocator>>) -> RWIobuf<'static> {
[INFO] [stderr]      |                                                          ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/appendbuf.rs:70:60
[INFO] [stderr]    |
[INFO] [stderr] 70 |   pub fn new_with_allocator(len: usize, allocator: Arc<Box<Allocator>>) -> AppendBuf<'static> {
[INFO] [stderr]    |                                                            ^^^^^^^^^ help: use `dyn`: `dyn Allocator`
[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/raw.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/raw.rs:354:37
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[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/raw.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/raw.rs:354:37
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[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/raw.rs:354:37
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[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/raw.rs:354:53
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[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/raw.rs:354:37
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[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/raw.rs:354:53
[INFO] [stderr]     |
[INFO] [stderr] 354 |       buf:    unsafe { NonZero::new(Unique::empty().as_ptr()) },
[INFO] [stderr]     |                                                     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `iobuf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `iobuf`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4cd07cdd3dd29d6abb112294d6422d9075f083c4c817d8decb2b7f886fd876c"`
[INFO] running `"docker" "rm" "-f" "b4cd07cdd3dd29d6abb112294d6422d9075f083c4c817d8decb2b7f886fd876c"`
[INFO] [stdout] b4cd07cdd3dd29d6abb112294d6422d9075f083c4c817d8decb2b7f886fd876c