Aug 02 01:42:58.388 INFO checking punkt-1.0.4 against 1.27.2 for lazy_static-1
Aug 02 01:42:58.388 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:42:58.388 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:42:58.388 INFO running `"docker" "create" "-v" "/tmp/crater.we1dDzAbHp1p:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 01:42:58.532 INFO blam! eff931afa38c5a8be046f84fea0b751ad7d1940974201055e7e490ed66ef996a
Aug 02 01:42:58.539 INFO running `"docker" "start" "-a" "eff931afa38c5a8be046f84fea0b751ad7d1940974201055e7e490ed66ef996a"`
Aug 02 01:43:00.049 INFO kablam!     Checking rust-freqdist v0.1.5
Aug 02 01:43:00.050 INFO kablam!    Compiling phf_macros v0.7.22
Aug 02 01:43:01.569 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:43:01.569 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/phf_macros-0.7.22/src/lib.rs:34:1
Aug 02 01:43:01.569 INFO kablam!    |
Aug 02 01:43:01.569 INFO kablam! 34 | #![feature(plugin_registrar, quote, rustc_private)]
Aug 02 01:43:01.569 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:43:01.569 INFO kablam! 
Aug 02 01:43:01.571 INFO kablam! error: aborting due to previous error
Aug 02 01:43:01.571 INFO kablam! 
Aug 02 01:43:01.571 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:43:01.586 INFO kablam! error: Could not compile `phf_macros`.
Aug 02 01:43:01.586 INFO kablam! 
Aug 02 01:43:01.586 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 01:43:01.587 INFO kablam! su: No module specific data is present
Aug 02 01:43:02.399 INFO running `"docker" "rm" "-f" "eff931afa38c5a8be046f84fea0b751ad7d1940974201055e7e490ed66ef996a"`
Aug 02 01:43:02.511 INFO blam! eff931afa38c5a8be046f84fea0b751ad7d1940974201055e7e490ed66ef996a