Sep 17 16:18:18.896 INFO checking tape-0.1.8 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 16:18:18.896 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 16:18:18.896 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-0/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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=1000" "-e" "CMD=cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 16:18:19.323 INFO blam! 8e01bf90499af1d06928eeaa8f449bd288ee9215dacada9485d8f1c150f9436d
Sep 17 16:18:19.325 INFO running `"docker" "start" "-a" "8e01bf90499af1d06928eeaa8f449bd288ee9215dacada9485d8f1c150f9436d"`
Sep 17 16:18:20.948 INFO kablam! usermod: no changes
Sep 17 16:18:21.031 INFO kablam!    Compiling libtar-sys v0.1.9
Sep 17 16:18:21.031 INFO kablam!     Checking random v0.12.2
Sep 17 16:18:21.627 INFO kablam!     Checking temporary v0.6.3
Sep 17 16:18:31.256 INFO kablam!     Checking tape v0.1.8 (/source)
Sep 17 16:18:31.576 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 17 16:18:31.576 INFO kablam!   --> src/lib.rs:79:3
Sep 17 16:18:31.576 INFO kablam!    |
Sep 17 16:18:31.576 INFO kablam! 79 | #[unsafe_destructor]
Sep 17 16:18:31.576 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 17 16:18:31.576 INFO kablam!    |
Sep 17 16:18:31.576 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 16:18:31.576 INFO kablam! 
Sep 17 16:18:31.577 INFO kablam! error: aborting due to previous error
Sep 17 16:18:31.577 INFO kablam! 
Sep 17 16:18:31.577 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 17 16:18:31.582 INFO kablam! error: Could not compile `tape`.
Sep 17 16:18:31.583 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 17 16:18:31.612 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 17 16:18:31.612 INFO kablam!   --> src/lib.rs:79:3
Sep 17 16:18:31.612 INFO kablam!    |
Sep 17 16:18:31.612 INFO kablam! 79 | #[unsafe_destructor]
Sep 17 16:18:31.612 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 17 16:18:31.612 INFO kablam!    |
Sep 17 16:18:31.612 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 16:18:31.612 INFO kablam! 
Sep 17 16:18:31.613 INFO kablam! error: aborting due to previous error
Sep 17 16:18:31.614 INFO kablam! 
Sep 17 16:18:31.614 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 17 16:18:31.621 INFO kablam! error: Could not compile `tape`.
Sep 17 16:18:31.621 INFO kablam! 
Sep 17 16:18:31.621 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 16:18:31.624 INFO kablam! su: No module specific data is present
Sep 17 16:18:32.390 INFO running `"docker" "rm" "-f" "8e01bf90499af1d06928eeaa8f449bd288ee9215dacada9485d8f1c150f9436d"`
Sep 17 16:18:32.567 INFO blam! 8e01bf90499af1d06928eeaa8f449bd288ee9215dacada9485d8f1c150f9436d