[INFO] crate allocators 0.1.9 is already in cache
[INFO] extracting crate allocators 0.1.9 into work/ex/beta-1.37-6/sources/1.36.0/reg/allocators/0.1.9
[INFO] extracting crate allocators 0.1.9 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/allocators/0.1.9
[INFO] validating manifest of allocators-0.1.9 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of allocators-0.1.9 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing allocators-0.1.9
[INFO] finished frobbing allocators-0.1.9
[INFO] frobbed toml for allocators-0.1.9 written to work/ex/beta-1.37-6/sources/1.36.0/reg/allocators/0.1.9/Cargo.toml
[INFO] started frobbing allocators-0.1.9
[INFO] finished frobbing allocators-0.1.9
[INFO] frobbed toml for allocators-0.1.9 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/allocators/0.1.9/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing allocators-0.1.9 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/allocators/0.1.9:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 435fa149b568a08df2aad82b57474a4e133c175e58f51785f64ab1b0af80775c
[INFO] running `"docker" "start" "-a" "435fa149b568a08df2aad82b57474a4e133c175e58f51785f64ab1b0af80775c"`
[INFO] [stderr]    Compiling allocators v0.1.9 (/opt/crater/workdir)
[INFO] [stderr] error: emplacement syntax is obsolete (for now, anyway)
[INFO] [stderr]   --> src/lib.rs:88:20
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 Ok(in place { val })
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see <https://github.com/rust-lang/rust/issues/27779#issuecomment-378416911>
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> src/lib.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | use alloc::heap;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::ops::InPlace`, `std::ops::Placer`
[INFO] [stderr]  --> src/boxed.rs:5:48
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{CoerceUnsized, Deref, DerefMut, InPlace, Placer};
[INFO] [stderr]   |                                                ^^^^^^^  ^^^^^^ no `Placer` in `ops`
[INFO] [stderr]   |                                                |
[INFO] [stderr]   |                                                no `InPlace` in `ops`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::ops::Place`
[INFO] [stderr]  --> src/boxed.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ops::Place as StdPlace;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Place` in `ops`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / #![feature(
[INFO] [stderr] 41 | |     alloc,
[INFO] [stderr] 42 | |     coerce_unsized,
[INFO] [stderr] 43 | |     drop_in_place,
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |     unsize,
[INFO] [stderr] 50 | | )]
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `allocators`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "435fa149b568a08df2aad82b57474a4e133c175e58f51785f64ab1b0af80775c"`
[INFO] running `"docker" "rm" "-f" "435fa149b568a08df2aad82b57474a4e133c175e58f51785f64ab1b0af80775c"`
[INFO] [stdout] 435fa149b568a08df2aad82b57474a4e133c175e58f51785f64ab1b0af80775c