Sep 21 02:03:34.368 INFO checking tape-0.1.8 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 02:03:34.368 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 02:03:34.368 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:03:34.624 INFO blam! dff376254358df403c68fa70f6daa2e326c2c96454365c1f4a0336c99344d622
Sep 21 02:03:34.626 INFO running `"docker" "start" "-a" "dff376254358df403c68fa70f6daa2e326c2c96454365c1f4a0336c99344d622"`
Sep 21 02:03:36.263 INFO kablam! usermod: no changes
Sep 21 02:03:36.323 INFO kablam!    Compiling libtar-sys v0.1.9
Sep 21 02:03:36.342 INFO kablam!     Checking random v0.12.2
Sep 21 02:03:36.822 INFO kablam!     Checking temporary v0.6.3
Sep 21 02:03:46.645 INFO kablam!     Checking tape v0.1.8 (/source)
Sep 21 02:03:46.975 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 21 02:03:46.976 INFO kablam!   --> src/lib.rs:79:3
Sep 21 02:03:46.976 INFO kablam!    |
Sep 21 02:03:46.976 INFO kablam! 79 | #[unsafe_destructor]
Sep 21 02:03:46.976 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 21 02:03:46.976 INFO kablam!    |
Sep 21 02:03:46.977 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 21 02:03:46.977 INFO kablam! 
Sep 21 02:03:46.978 INFO kablam! error: aborting due to previous error
Sep 21 02:03:46.978 INFO kablam! 
Sep 21 02:03:46.978 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 21 02:03:46.985 INFO kablam! error: Could not compile `tape`.
Sep 21 02:03:46.986 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 21 02:03:46.997 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 21 02:03:46.997 INFO kablam!   --> src/lib.rs:79:3
Sep 21 02:03:46.997 INFO kablam!    |
Sep 21 02:03:46.997 INFO kablam! 79 | #[unsafe_destructor]
Sep 21 02:03:46.997 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 21 02:03:46.998 INFO kablam!    |
Sep 21 02:03:46.998 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 21 02:03:46.998 INFO kablam! 
Sep 21 02:03:46.999 INFO kablam! error: aborting due to previous error
Sep 21 02:03:46.999 INFO kablam! 
Sep 21 02:03:46.999 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 21 02:03:47.006 INFO kablam! error: Could not compile `tape`.
Sep 21 02:03:47.006 INFO kablam! 
Sep 21 02:03:47.006 INFO kablam! To learn more, run the command again with --verbose.
Sep 21 02:03:47.008 INFO kablam! su: No module specific data is present
Sep 21 02:03:47.607 INFO running `"docker" "rm" "-f" "dff376254358df403c68fa70f6daa2e326c2c96454365c1f4a0336c99344d622"`
Sep 21 02:03:47.748 INFO blam! dff376254358df403c68fa70f6daa2e326c2c96454365c1f4a0336c99344d622