[INFO] crate swym 0.1.0-preview is already in cache
[INFO] testing swym-0.1.0-preview against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate swym 0.1.0-preview into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate swym 0.1.0-preview on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate swym 0.1.0-preview
[INFO] finished tweaking crates.io crate swym 0.1.0-preview
[INFO] tweaked toml for crates.io crate swym 0.1.0-preview written to work/builds/worker-11/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 6067b5ad4d7a1c7abca6cb6b67c3e6a3638a08efdda424a33cc6b2543f44e45a
[INFO] running `"docker" "start" "-a" "6067b5ad4d7a1c7abca6cb6b67c3e6a3638a08efdda424a33cc6b2543f44e45a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling swym v0.1.0-preview (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | #![feature(align_offset)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | #![feature(allocator_api)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | #![feature(cfg_target_thread_local)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | #![feature(const_fn)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | #![feature(core_intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:78:1
[INFO] [stderr]    |
[INFO] [stderr] 78 | #![feature(dropck_eyepatch)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | #![feature(fn_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | #![feature(non_exhaustive)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | #![feature(optin_builtin_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | #![feature(ptr_offset_from)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | #![feature(raw)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | #![feature(thread_local)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | #![feature(trusted_len)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | #![feature(unboxed_closures)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | #![feature(unsize)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/internal/pointer.rs:144:28
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut u: U = mem::uninitialized();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/internal/tcell_erased.rs:58:56
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let mut a: UsizeAligned<ManuallyDrop<T>> = mem::uninitialized();
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/internal/tcell_erased.rs:69:56
[INFO] [stderr]    |
[INFO] [stderr] 69 |             let mut a: UsizeAligned<ManuallyDrop<T>> = mem::uninitialized();
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/internal/write_log.rs:85:56
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let mut value: UsizeAligned<ManuallyDrop<T>> = mem::uninitialized();
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 15 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `swym`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6067b5ad4d7a1c7abca6cb6b67c3e6a3638a08efdda424a33cc6b2543f44e45a"`
[INFO] running `"docker" "rm" "-f" "6067b5ad4d7a1c7abca6cb6b67c3e6a3638a08efdda424a33cc6b2543f44e45a"`
[INFO] [stdout] 6067b5ad4d7a1c7abca6cb6b67c3e6a3638a08efdda424a33cc6b2543f44e45a