Sep 04 20:03:06.978 INFO checking default_allocator-0.2.3 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 20:03:06.978 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 20:03:06.978 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 20:03:07.178 INFO blam! ee9c481db4ba5cb60682c7d2a4d2f105cdcd222d50ffafccbcfd9d8635822aa9
Sep 04 20:03:07.180 INFO running `"docker" "start" "-a" "ee9c481db4ba5cb60682c7d2a4d2f105cdcd222d50ffafccbcfd9d8635822aa9"`
Sep 04 20:03:07.872 INFO kablam!     Checking ptr v0.1.4
Sep 04 20:03:08.021 INFO kablam! error[E0635]: unknown feature `const_align_of`
Sep 04 20:03:08.021 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ptr-0.1.4/src/lib.rs:13:12
Sep 04 20:03:08.021 INFO kablam!    |
Sep 04 20:03:08.021 INFO kablam! 13 | #![feature(const_align_of)]
Sep 04 20:03:08.021 INFO kablam!    |            ^^^^^^^^^^^^^^
Sep 04 20:03:08.021 INFO kablam! 
Sep 04 20:03:08.028 INFO kablam! error: aborting due to previous error
Sep 04 20:03:08.028 INFO kablam! 
Sep 04 20:03:08.028 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 20:03:08.035 INFO kablam! error: Could not compile `ptr`.
Sep 04 20:03:08.035 INFO kablam! 
Sep 04 20:03:08.035 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 20:03:08.037 INFO kablam! su: No module specific data is present
Sep 04 20:03:08.425 INFO running `"docker" "rm" "-f" "ee9c481db4ba5cb60682c7d2a4d2f105cdcd222d50ffafccbcfd9d8635822aa9"`
Sep 04 20:03:08.515 INFO blam! ee9c481db4ba5cb60682c7d2a4d2f105cdcd222d50ffafccbcfd9d8635822aa9