[INFO] crate boxed 0.1.0 is already in cache
[INFO] extracting crate boxed 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/boxed/0.1.0
[INFO] extracting crate boxed 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/boxed/0.1.0
[INFO] validating manifest of boxed-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of boxed-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing boxed-0.1.0
[INFO] finished frobbing boxed-0.1.0
[INFO] frobbed toml for boxed-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/boxed/0.1.0/Cargo.toml
[INFO] started frobbing boxed-0.1.0
[INFO] finished frobbing boxed-0.1.0
[INFO] frobbed toml for boxed-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/boxed/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing boxed-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/boxed/0.1.0:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3daf86450bb041fdfc5695e22544673571f3ec61a3a53a0dd600876dbb7582b0
[INFO] running `"docker" "start" "-a" "3daf86450bb041fdfc5695e22544673571f3ec61a3a53a0dd600876dbb7582b0"`
[INFO] [stderr]    Compiling loca v0.4.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(core_intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(unique)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[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]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 | use core::ptr::{self, Unique};
[INFO] [stderr]    |                       ^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:844:42
[INFO] [stderr]     |
[INFO] [stderr] 844 |     fn alloc_one<T>(&mut self) -> Result<Unique<T>, AllocErr> {
[INFO] [stderr]     |                                          ^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:847:44
[INFO] [stderr]     |
[INFO] [stderr] 847 |             unsafe { self.alloc(k).map(|p| Unique::new_unchecked(p as *mut T)) }
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:870:46
[INFO] [stderr]     |
[INFO] [stderr] 870 |     unsafe fn dealloc_one<T>(&mut self, ptr: Unique<T>) {
[INFO] [stderr]     |                                              ^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:908:54
[INFO] [stderr]     |
[INFO] [stderr] 908 |     fn alloc_array<T>(&mut self, n: usize) -> Result<Unique<T>, AllocErr> {
[INFO] [stderr]     |                                                      ^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:912:56
[INFO] [stderr]     |
[INFO] [stderr] 912 |                     self.alloc(layout.clone()).map(|p| Unique::new_unchecked(p as *mut T))
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:952:37
[INFO] [stderr]     |
[INFO] [stderr] 952 |                                ptr: Unique<T>,
[INFO] [stderr]     |                                     ^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:954:56
[INFO] [stderr]     |
[INFO] [stderr] 954 |                                n_new: usize) -> Result<Unique<T>, AllocErr> {
[INFO] [stderr]     |                                                        ^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:958:29
[INFO] [stderr]     |
[INFO] [stderr] 958 |                     .map(|p|Unique::new_unchecked(p as *mut T))
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^
[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]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:986:48
[INFO] [stderr]     |
[INFO] [stderr] 986 |     unsafe fn dealloc_array<T>(&mut self, ptr: Unique<T>, n: usize) -> Result<(), AllocErr> {
[INFO] [stderr]     |                                                ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1010:42
[INFO] [stderr]      |
[INFO] [stderr] 1010 |     fn alloc_one<T>(&mut self) -> Result<Unique<T>, AllocErr> { self.deref_mut().alloc_one() }
[INFO] [stderr]      |                                          ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1011:46
[INFO] [stderr]      |
[INFO] [stderr] 1011 |     unsafe fn dealloc_one<T>(&mut self, ptr: Unique<T>) { self.deref_mut().dealloc_one(ptr) }
[INFO] [stderr]      |                                              ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1012:54
[INFO] [stderr]      |
[INFO] [stderr] 1012 |     fn alloc_array<T>(&mut self, n: usize) -> Result<Unique<T>, AllocErr> { self.deref_mut().alloc_array(n) }
[INFO] [stderr]      |                                                      ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1013:48
[INFO] [stderr]      |
[INFO] [stderr] 1013 |     unsafe fn realloc_array<T>(&mut self, ptr: Unique<T>, old_n: usize, new_n: usize) -> Result<Unique<T>, AllocErr> { self.deref_mut().realloc_array(ptr, old_n, new_n) }
[INFO] [stderr]      |                                                ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1013:97
[INFO] [stderr]      |
[INFO] [stderr] 1013 |     unsafe fn realloc_array<T>(&mut self, ptr: Unique<T>, old_n: usize, new_n: usize) -> Result<Unique<T>, AllocErr> { self.deref_mut().realloc_array(ptr, old_n, new_n) }
[INFO] [stderr]      |                                                                                                 ^^^^^^^^^
[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]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:1014:48
[INFO] [stderr]      |
[INFO] [stderr] 1014 |     unsafe fn dealloc_array<T>(&mut self, ptr: Unique<T>, n: usize) -> Result<(), AllocErr> { self.deref_mut().dealloc_array(ptr, n) }
[INFO] [stderr]      |                                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:847:44
[INFO] [stderr]     |
[INFO] [stderr] 847 |             unsafe { self.alloc(k).map(|p| Unique::new_unchecked(p as *mut T)) }
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:871:27
[INFO] [stderr]     |
[INFO] [stderr] 871 |         let raw_ptr = ptr.as_ptr() as *mut u8;
[INFO] [stderr]     |                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:912:56
[INFO] [stderr]     |
[INFO] [stderr] 912 |                     self.alloc(layout.clone()).map(|p| Unique::new_unchecked(p as *mut T))
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:955:74
[INFO] [stderr]     |
[INFO] [stderr] 955 |         match (Layout::array::<T>(n_old), Layout::array::<T>(n_new), ptr.as_ptr()) {
[INFO] [stderr]     |                                                                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:958:29
[INFO] [stderr]     |
[INFO] [stderr] 958 |                     .map(|p|Unique::new_unchecked(p as *mut T))
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/loca-0.4.1/src/lib.rs:987:27
[INFO] [stderr]     |
[INFO] [stderr] 987 |         let raw_ptr = ptr.as_ptr() as *mut u8;
[INFO] [stderr]     |                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `loca`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3daf86450bb041fdfc5695e22544673571f3ec61a3a53a0dd600876dbb7582b0"`
[INFO] running `"docker" "rm" "-f" "3daf86450bb041fdfc5695e22544673571f3ec61a3a53a0dd600876dbb7582b0"`
[INFO] [stdout] 3daf86450bb041fdfc5695e22544673571f3ec61a3a53a0dd600876dbb7582b0