Sep 01 04:32:24.710 INFO checking tape-0.1.8 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 04:32:24.710 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 04:32:24.710 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 04:32:24.884 INFO blam! 47861b32d294b88557fa0647e360a13c5a76b23869d2c0976522d836ff043ae2
Sep 01 04:32:24.885 INFO running `"docker" "start" "-a" "47861b32d294b88557fa0647e360a13c5a76b23869d2c0976522d836ff043ae2"`
Sep 01 04:32:25.454 INFO kablam!    Compiling libtar-sys v0.1.9
Sep 01 04:32:29.359 INFO kablam!     Checking tape v0.1.8 (file:///source)
Sep 01 04:32:29.611 INFO kablam! error[E0658]: The attribute `unsafe_destructor` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Sep 01 04:32:29.611 INFO kablam!   --> src/lib.rs:79:3
Sep 01 04:32:29.611 INFO kablam!    |
Sep 01 04:32:29.612 INFO kablam! 79 | #[unsafe_destructor]
Sep 01 04:32:29.612 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 01 04:32:29.612 INFO kablam!    |
Sep 01 04:32:29.612 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 04:32:29.612 INFO kablam! 
Sep 01 04:32:29.612 INFO kablam! error: aborting due to previous error
Sep 01 04:32:29.612 INFO kablam! 
Sep 01 04:32:29.612 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 04:32:29.616 INFO kablam! error: Could not compile `tape`.
Sep 01 04:32:29.616 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 04:32:29.663 INFO kablam! error[E0658]: The attribute `unsafe_destructor` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Sep 01 04:32:29.663 INFO kablam!   --> src/lib.rs:79:3
Sep 01 04:32:29.663 INFO kablam!    |
Sep 01 04:32:29.663 INFO kablam! 79 | #[unsafe_destructor]
Sep 01 04:32:29.663 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 01 04:32:29.663 INFO kablam!    |
Sep 01 04:32:29.663 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 04:32:29.663 INFO kablam! 
Sep 01 04:32:29.664 INFO kablam! error: aborting due to previous error
Sep 01 04:32:29.664 INFO kablam! 
Sep 01 04:32:29.664 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 04:32:29.668 INFO kablam! error: Could not compile `tape`.
Sep 01 04:32:29.668 INFO kablam! 
Sep 01 04:32:29.668 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 04:32:29.669 INFO kablam! su: No module specific data is present
Sep 01 04:32:30.119 INFO running `"docker" "rm" "-f" "47861b32d294b88557fa0647e360a13c5a76b23869d2c0976522d836ff043ae2"`
Sep 01 04:32:30.233 INFO blam! 47861b32d294b88557fa0647e360a13c5a76b23869d2c0976522d836ff043ae2