Sep 06 01:52:03.220 INFO checking raw-vec-0.1.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 01:52:03.220 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 01:52:03.220 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 01:52:03.412 INFO blam! 4b6dd30ed3c4dcc6a1b214344e84f1c7cc834e878286a65dfcabac96f5eab6a2
Sep 06 01:52:03.414 INFO running `"docker" "start" "-a" "4b6dd30ed3c4dcc6a1b214344e84f1c7cc834e878286a65dfcabac96f5eab6a2"`
Sep 06 01:52:04.433 INFO kablam! usermod: no changes
Sep 06 01:52:04.562 INFO kablam!     Checking raw-vec v0.1.0 (file:///source)
Sep 06 01:52:04.718 INFO kablam! error[E0557]: feature has been removed
Sep 06 01:52:04.718 INFO kablam!   --> src/lib.rs:11:16
Sep 06 01:52:04.718 INFO kablam!    |
Sep 06 01:52:04.718 INFO kablam! 11 | #![feature(rt, unsafe_no_drop_flag, unique, heap_api, box_raw, filling_drop)]
Sep 06 01:52:04.718 INFO kablam!    |                ^^^^^^^^^^^^^^^^^^^
Sep 06 01:52:04.718 INFO kablam! 
Sep 06 01:52:04.726 INFO kablam! error[E0557]: feature has been removed
Sep 06 01:52:04.726 INFO kablam!   --> src/lib.rs:11:16
Sep 06 01:52:04.726 INFO kablam!    |
Sep 06 01:52:04.726 INFO kablam! 11 | #![feature(rt, unsafe_no_drop_flag, unique, heap_api, box_raw, filling_drop)]
Sep 06 01:52:04.726 INFO kablam!    |                ^^^^^^^^^^^^^^^^^^^
Sep 06 01:52:04.726 INFO kablam! 
Sep 06 01:52:04.950 INFO kablam! error[E0658]: The attribute `unsafe_no_drop_flag` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Sep 06 01:52:04.950 INFO kablam!   --> src/lib.rs:46:3
Sep 06 01:52:04.950 INFO kablam!    |
Sep 06 01:52:04.950 INFO kablam! 46 | #[unsafe_no_drop_flag]
Sep 06 01:52:04.950 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^
Sep 06 01:52:04.950 INFO kablam!    |
Sep 06 01:52:04.950 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:52:04.950 INFO kablam! 
Sep 06 01:52:04.950 INFO kablam! error: aborting due to 2 previous errors
Sep 06 01:52:04.950 INFO kablam! 
Sep 06 01:52:04.950 INFO kablam! Some errors occurred: E0557, E0658.
Sep 06 01:52:04.950 INFO kablam! For more information about an error, try `rustc --explain E0557`.
Sep 06 01:52:04.958 INFO kablam! error: Could not compile `raw-vec`.
Sep 06 01:52:04.958 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 01:52:05.020 INFO kablam! error[E0658]: The attribute `unsafe_no_drop_flag` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Sep 06 01:52:05.020 INFO kablam!   --> src/lib.rs:46:3
Sep 06 01:52:05.020 INFO kablam!    |
Sep 06 01:52:05.021 INFO kablam! 46 | #[unsafe_no_drop_flag]
Sep 06 01:52:05.021 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^
Sep 06 01:52:05.021 INFO kablam!    |
Sep 06 01:52:05.021 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:52:05.021 INFO kablam! 
Sep 06 01:52:05.021 INFO kablam! error: aborting due to 2 previous errors
Sep 06 01:52:05.021 INFO kablam! 
Sep 06 01:52:05.021 INFO kablam! Some errors occurred: E0557, E0658.
Sep 06 01:52:05.021 INFO kablam! For more information about an error, try `rustc --explain E0557`.
Sep 06 01:52:05.047 INFO kablam! error: Could not compile `raw-vec`.
Sep 06 01:52:05.047 INFO kablam! 
Sep 06 01:52:05.047 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 01:52:05.048 INFO kablam! su: No module specific data is present
Sep 06 01:52:06.038 INFO running `"docker" "rm" "-f" "4b6dd30ed3c4dcc6a1b214344e84f1c7cc834e878286a65dfcabac96f5eab6a2"`
Sep 06 01:52:06.143 INFO blam! 4b6dd30ed3c4dcc6a1b214344e84f1c7cc834e878286a65dfcabac96f5eab6a2