Sep 19 17:12:51.728 INFO checking tape-0.1.8 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 17:12:51.728 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 17:12:51.728 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 17:12:52.139 INFO blam! c7574943869ea0503f370ef21ef9bde3ad96eec6b49520922c418fe743bcc567
Sep 19 17:12:52.141 INFO running `"docker" "start" "-a" "c7574943869ea0503f370ef21ef9bde3ad96eec6b49520922c418fe743bcc567"`
Sep 19 17:12:53.999 INFO kablam! usermod: no changes
Sep 19 17:12:54.098 INFO kablam!    Compiling libtar-sys v0.1.9
Sep 19 17:12:54.103 INFO kablam!     Checking random v0.12.2
Sep 19 17:12:54.605 INFO kablam!     Checking temporary v0.6.3
Sep 19 17:13:01.755 INFO kablam!     Checking tape v0.1.8 (/source)
Sep 19 17:13:01.963 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 19 17:13:01.963 INFO kablam!   --> src/lib.rs:79:3
Sep 19 17:13:01.963 INFO kablam!    |
Sep 19 17:13:01.963 INFO kablam! 79 | #[unsafe_destructor]
Sep 19 17:13:01.963 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 19 17:13:01.963 INFO kablam!    |
Sep 19 17:13:01.963 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 19 17:13:01.963 INFO kablam! 
Sep 19 17:13:01.963 INFO kablam! error: aborting due to previous error
Sep 19 17:13:01.963 INFO kablam! 
Sep 19 17:13:01.963 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 19 17:13:01.967 INFO kablam! error: Could not compile `tape`.
Sep 19 17:13:01.967 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 19 17:13:02.007 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 19 17:13:02.007 INFO kablam!   --> src/lib.rs:79:3
Sep 19 17:13:02.007 INFO kablam!    |
Sep 19 17:13:02.007 INFO kablam! 79 | #[unsafe_destructor]
Sep 19 17:13:02.007 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 19 17:13:02.007 INFO kablam!    |
Sep 19 17:13:02.007 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 19 17:13:02.007 INFO kablam! 
Sep 19 17:13:02.007 INFO kablam! error: aborting due to previous error
Sep 19 17:13:02.007 INFO kablam! 
Sep 19 17:13:02.007 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 19 17:13:02.012 INFO kablam! error: Could not compile `tape`.
Sep 19 17:13:02.012 INFO kablam! 
Sep 19 17:13:02.012 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 17:13:02.013 INFO kablam! su: No module specific data is present
Sep 19 17:13:02.715 INFO running `"docker" "rm" "-f" "c7574943869ea0503f370ef21ef9bde3ad96eec6b49520922c418fe743bcc567"`
Sep 19 17:13:02.855 INFO blam! c7574943869ea0503f370ef21ef9bde3ad96eec6b49520922c418fe743bcc567