Sep 06 08:07:24.406 INFO checking default_allocator-0.2.3 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 08:07:24.406 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 08:07:24.406 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 08:07:24.557 INFO blam! 85392abca2333318c10e72676e149c655292d81e305b8b9915675bfa1c9a9830
Sep 06 08:07:24.559 INFO running `"docker" "start" "-a" "85392abca2333318c10e72676e149c655292d81e305b8b9915675bfa1c9a9830"`
Sep 06 08:07:25.534 INFO kablam! usermod: no changes
Sep 06 08:07:25.559 INFO kablam!    Compiling ptr v0.1.4
Sep 06 08:07:25.999 INFO kablam! error[E0635]: unknown feature `const_align_of`
Sep 06 08:07:25.999 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ptr-0.1.4/src/lib.rs:13:12
Sep 06 08:07:25.999 INFO kablam!    |
Sep 06 08:07:25.999 INFO kablam! 13 | #![feature(const_align_of)]
Sep 06 08:07:25.999 INFO kablam!    |            ^^^^^^^^^^^^^^
Sep 06 08:07:25.999 INFO kablam! 
Sep 06 08:07:26.004 INFO kablam! error: aborting due to previous error
Sep 06 08:07:26.004 INFO kablam! 
Sep 06 08:07:26.005 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 06 08:07:26.011 INFO kablam! error: Could not compile `ptr`.
Sep 06 08:07:26.011 INFO kablam! 
Sep 06 08:07:26.011 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 08:07:26.012 INFO kablam! su: No module specific data is present
Sep 06 08:07:26.492 INFO running `"docker" "rm" "-f" "85392abca2333318c10e72676e149c655292d81e305b8b9915675bfa1c9a9830"`
Sep 06 08:07:26.638 INFO blam! 85392abca2333318c10e72676e149c655292d81e305b8b9915675bfa1c9a9830