Sep 20 02:57:33.174 INFO checking default_allocator-0.2.3 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 02:57:33.174 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 02:57:33.174 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-6/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 02:57:33.296 INFO blam! 1b930609e231443a1b5d8f1289bdf5bc51a177ade44d07e09c58d67a3079a8d7
Sep 20 02:57:33.297 INFO running `"docker" "start" "-a" "1b930609e231443a1b5d8f1289bdf5bc51a177ade44d07e09c58d67a3079a8d7"`
Sep 20 02:57:34.398 INFO kablam! usermod: no changes
Sep 20 02:57:34.421 INFO kablam!    Compiling ptr v0.1.4
Sep 20 02:57:34.977 INFO kablam! error[E0635]: unknown feature `const_align_of`
Sep 20 02:57:34.977 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ptr-0.1.4/src/lib.rs:13:12
Sep 20 02:57:34.977 INFO kablam!    |
Sep 20 02:57:34.977 INFO kablam! 13 | #![feature(const_align_of)]
Sep 20 02:57:34.977 INFO kablam!    |            ^^^^^^^^^^^^^^
Sep 20 02:57:34.977 INFO kablam! 
Sep 20 02:57:34.980 INFO kablam! error: aborting due to previous error
Sep 20 02:57:34.980 INFO kablam! 
Sep 20 02:57:34.980 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 20 02:57:34.988 INFO kablam! error: Could not compile `ptr`.
Sep 20 02:57:34.988 INFO kablam! 
Sep 20 02:57:34.988 INFO kablam! To learn more, run the command again with --verbose.
Sep 20 02:57:34.989 INFO kablam! su: No module specific data is present
Sep 20 02:57:35.559 INFO running `"docker" "rm" "-f" "1b930609e231443a1b5d8f1289bdf5bc51a177ade44d07e09c58d67a3079a8d7"`
Sep 20 02:57:35.616 INFO blam! 1b930609e231443a1b5d8f1289bdf5bc51a177ade44d07e09c58d67a3079a8d7