Sep 02 16:42:40.389 INFO checking default_allocator-0.2.3 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 16:42:40.389 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 16:42:40.389 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/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 02 16:42:40.558 INFO blam! 21a0270db71bb102d2368d81d0dc099d6c02c2f27aee10884be60b4e2faa85e8
Sep 02 16:42:40.560 INFO running `"docker" "start" "-a" "21a0270db71bb102d2368d81d0dc099d6c02c2f27aee10884be60b4e2faa85e8"`
Sep 02 16:42:41.460 INFO kablam!     Checking ptr v0.1.4
Sep 02 16:42:41.604 INFO kablam! error[E0635]: unknown feature `const_align_of`
Sep 02 16:42:41.604 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ptr-0.1.4/src/lib.rs:13:12
Sep 02 16:42:41.604 INFO kablam!    |
Sep 02 16:42:41.604 INFO kablam! 13 | #![feature(const_align_of)]
Sep 02 16:42:41.604 INFO kablam!    |            ^^^^^^^^^^^^^^
Sep 02 16:42:41.604 INFO kablam! 
Sep 02 16:42:41.608 INFO kablam! error: aborting due to previous error
Sep 02 16:42:41.608 INFO kablam! 
Sep 02 16:42:41.608 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 02 16:42:41.614 INFO kablam! error: Could not compile `ptr`.
Sep 02 16:42:41.614 INFO kablam! 
Sep 02 16:42:41.614 INFO kablam! To learn more, run the command again with --verbose.
Sep 02 16:42:41.615 INFO kablam! su: No module specific data is present
Sep 02 16:42:42.060 INFO running `"docker" "rm" "-f" "21a0270db71bb102d2368d81d0dc099d6c02c2f27aee10884be60b4e2faa85e8"`
Sep 02 16:42:42.156 INFO blam! 21a0270db71bb102d2368d81d0dc099d6c02c2f27aee10884be60b4e2faa85e8