[INFO] crate any-arena 0.0.1 is already in cache
[INFO] extracting crate any-arena 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/any-arena/0.0.1
[INFO] extracting crate any-arena 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/any-arena/0.0.1
[INFO] validating manifest of any-arena-0.0.1 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 any-arena-0.0.1 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 any-arena-0.0.1
[INFO] finished frobbing any-arena-0.0.1
[INFO] frobbed toml for any-arena-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/any-arena/0.0.1/Cargo.toml
[INFO] started frobbing any-arena-0.0.1
[INFO] finished frobbing any-arena-0.0.1
[INFO] frobbed toml for any-arena-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/any-arena/0.0.1/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 any-arena-0.0.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/any-arena/0.0.1:/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=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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a58280f3ec63ac5b5c574cad41a781127030601885b4b78080b6a44d194dcc89
[INFO] running `"docker" "start" "-a" "a58280f3ec63ac5b5c574cad41a781127030601885b4b78080b6a44d194dcc89"`
[INFO] [stderr]    Compiling any-arena v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> src/any_arena.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use alloc::heap;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(alloc)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(core_intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(heap_api)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | #![feature(raw)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/any_arena.rs:308:33
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let obj = mem::transmute::<&AllTypes, TraitObject>(ptr);
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn AllTypes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/any_arena.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use alloc::raw_vec::RawVec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/any_arena.rs:235:11
[INFO] [stderr]     |
[INFO] [stderr] 235 |     data: RawVec<u8>,
[INFO] [stderr]     |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/any_arena.rs:245:19
[INFO] [stderr]     |
[INFO] [stderr] 245 |             data: RawVec::with_capacity(size),
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/any_arena.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |         if head.data.reserve_in_place(used_cap, n_bytes) {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/any_arena.rs:252:19
[INFO] [stderr]     |
[INFO] [stderr] 252 |         self.data.cap()
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/any_arena.rs:256:19
[INFO] [stderr]     |
[INFO] [stderr] 256 |         self.data.ptr()
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `any-arena`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a58280f3ec63ac5b5c574cad41a781127030601885b4b78080b6a44d194dcc89"`
[INFO] running `"docker" "rm" "-f" "a58280f3ec63ac5b5c574cad41a781127030601885b4b78080b6a44d194dcc89"`
[INFO] [stdout] a58280f3ec63ac5b5c574cad41a781127030601885b4b78080b6a44d194dcc89