Aug 02 05:01:21.432 INFO checking loggr-0.3.0 against 1.27.2 for lazy_static-1
Aug 02 05:01:21.432 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:01:21.432 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:01:21.433 INFO running `"docker" "create" "-v" "/tmp/crater.80qy1nzehP5l:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 05:01:21.622 INFO blam! c5dc9593206b935851ef869a460112b8b5086e0ab0c780d1f478ab99bacb58ec
Aug 02 05:01:21.623 INFO running `"docker" "start" "-a" "c5dc9593206b935851ef869a460112b8b5086e0ab0c780d1f478ab99bacb58ec"`
Aug 02 05:01:22.797 INFO kablam!    Compiling ptr v0.1.4
Aug 02 05:01:22.797 INFO kablam!    Compiling hash-table v0.2.2
Aug 02 05:01:22.797 INFO kablam!    Compiling containers v0.8.3
Aug 02 05:01:22.797 INFO kablam!     Checking slot v0.2.4
Aug 02 05:01:22.797 INFO kablam!     Checking idem v0.4.0
Aug 02 05:01:22.805 INFO kablam!    Compiling i-o v0.4.1
Aug 02 05:01:22.805 INFO kablam!     Checking rel v0.2.0
Aug 02 05:01:22.820 INFO kablam!     Checking heap v0.1.0
Aug 02 05:01:23.538 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:01:23.538 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:3:1
Aug 02 05:01:23.538 INFO kablam!   |
Aug 02 05:01:23.538 INFO kablam! 3 | #![feature(const_fn)]
Aug 02 05:01:23.538 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:01:23.539 INFO kablam! 
Aug 02 05:01:23.539 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:01:23.539 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:4:1
Aug 02 05:01:23.539 INFO kablam!   |
Aug 02 05:01:23.539 INFO kablam! 4 | #![feature(untagged_unions)]
Aug 02 05:01:23.540 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:01:23.540 INFO kablam! 
Aug 02 05:01:23.540 INFO kablam! error: aborting due to 2 previous errors
Aug 02 05:01:23.541 INFO kablam! 
Aug 02 05:01:23.542 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:01:23.569 INFO kablam! error: Could not compile `slot`.
Aug 02 05:01:23.570 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:01:26.426 INFO kablam! error: build failed
Aug 02 05:01:26.428 INFO kablam! su: No module specific data is present
Aug 02 05:01:27.175 INFO running `"docker" "rm" "-f" "c5dc9593206b935851ef869a460112b8b5086e0ab0c780d1f478ab99bacb58ec"`
Aug 02 05:01:27.285 INFO blam! c5dc9593206b935851ef869a460112b8b5086e0ab0c780d1f478ab99bacb58ec