Sep 01 04:32:25.143 INFO checking tape-0.1.8 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 04:32:25.144 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 04:32:25.144 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 04:32:25.314 INFO blam! db27731414642be253c0d7780d866f4b5787167bf44d2dd4f0b43f42931b736b
Sep 01 04:32:25.315 INFO running `"docker" "start" "-a" "db27731414642be253c0d7780d866f4b5787167bf44d2dd4f0b43f42931b736b"`
Sep 01 04:32:25.921 INFO kablam!    Compiling libtar-sys v0.1.9
Sep 01 04:32:25.921 INFO kablam!     Checking temporary v0.6.3
Sep 01 04:32:29.916 INFO kablam!     Checking tape v0.1.8 (file:///source)
Sep 01 04:32:30.122 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 04:32:30.123 INFO kablam!   --> src/lib.rs:79:3
Sep 01 04:32:30.123 INFO kablam!    |
Sep 01 04:32:30.123 INFO kablam! 79 | #[unsafe_destructor]
Sep 01 04:32:30.123 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 01 04:32:30.123 INFO kablam!    |
Sep 01 04:32:30.123 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 04:32:30.123 INFO kablam! 
Sep 01 04:32:30.123 INFO kablam! error: aborting due to previous error
Sep 01 04:32:30.123 INFO kablam! 
Sep 01 04:32:30.123 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 04:32:30.129 INFO kablam! error: Could not compile `tape`.
Sep 01 04:32:30.129 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 04:32:30.161 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 04:32:30.162 INFO kablam!   --> src/lib.rs:79:3
Sep 01 04:32:30.162 INFO kablam!    |
Sep 01 04:32:30.162 INFO kablam! 79 | #[unsafe_destructor]
Sep 01 04:32:30.162 INFO kablam!    |   ^^^^^^^^^^^^^^^^^
Sep 01 04:32:30.162 INFO kablam!    |
Sep 01 04:32:30.162 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 04:32:30.162 INFO kablam! 
Sep 01 04:32:30.162 INFO kablam! error: aborting due to previous error
Sep 01 04:32:30.162 INFO kablam! 
Sep 01 04:32:30.162 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 04:32:30.169 INFO kablam! error: Could not compile `tape`.
Sep 01 04:32:30.169 INFO kablam! 
Sep 01 04:32:30.169 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 04:32:30.169 INFO kablam! su: No module specific data is present
Sep 01 04:32:30.571 INFO running `"docker" "rm" "-f" "db27731414642be253c0d7780d866f4b5787167bf44d2dd4f0b43f42931b736b"`
Sep 01 04:32:30.657 INFO blam! db27731414642be253c0d7780d866f4b5787167bf44d2dd4f0b43f42931b736b