Aug 01 20:21:36.023 INFO checking tk-redis-0.1.3 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:21:36.023 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:21:36.024 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:21:36.024 INFO running `"docker" "create" "-v" "/tmp/crater.8SSlDvsPBicE:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/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 01 20:21:36.299 INFO blam! 2349ac310d8886e9c0a8892a8aa1a016639d13745148f85acc98c90cd31e0b3b
Aug 01 20:21:36.301 INFO running `"docker" "start" "-a" "2349ac310d8886e9c0a8892a8aa1a016639d13745148f85acc98c90cd31e0b3b"`
Aug 01 20:21:37.707 INFO kablam!     Checking nodrop-union v0.1.9
Aug 01 20:21:37.712 INFO kablam!     Checking spin v0.4.8
Aug 01 20:21:37.958 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:21:37.958 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:6:30
Aug 01 20:21:37.958 INFO kablam!   |
Aug 01 20:21:37.958 INFO kablam! 6 | #![cfg_attr(feature = "asm", feature(asm))]
Aug 01 20:21:37.958 INFO kablam!   |                              ^^^^^^^^^^^^^
Aug 01 20:21:37.958 INFO kablam! 
Aug 01 20:21:37.958 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:21:37.958 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:7:42
Aug 01 20:21:37.958 INFO kablam!   |
Aug 01 20:21:37.958 INFO kablam! 7 | #![cfg_attr(feature = "core_intrinsics", feature(core_intrinsics))]
Aug 01 20:21:37.958 INFO kablam!   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:21:37.958 INFO kablam! 
Aug 01 20:21:37.958 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:21:37.958 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:35
Aug 01 20:21:37.958 INFO kablam!   |
Aug 01 20:21:37.958 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 01 20:21:37.958 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:21:37.958 INFO kablam! 
Aug 01 20:21:37.961 INFO kablam! error: aborting due to 3 previous errors
Aug 01 20:21:37.961 INFO kablam! 
Aug 01 20:21:37.961 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:21:37.966 INFO kablam! error: Could not compile `spin`.
Aug 01 20:21:37.966 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:21:37.986 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:21:37.986 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/nodrop-union-0.1.9/src/lib.rs:21:1
Aug 01 20:21:37.986 INFO kablam!    |
Aug 01 20:21:37.986 INFO kablam! 21 | #![feature(untagged_unions)]
Aug 01 20:21:37.986 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:21:37.987 INFO kablam! 
Aug 01 20:21:37.988 INFO kablam! error: aborting due to previous error
Aug 01 20:21:37.988 INFO kablam! 
Aug 01 20:21:37.988 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:21:37.998 INFO kablam! error: Could not compile `nodrop-union`.
Aug 01 20:21:37.998 INFO kablam! 
Aug 01 20:21:37.998 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:21:37.998 INFO kablam! su: No module specific data is present
Aug 01 20:21:38.478 INFO running `"docker" "rm" "-f" "2349ac310d8886e9c0a8892a8aa1a016639d13745148f85acc98c90cd31e0b3b"`
Aug 01 20:21:38.610 INFO blam! 2349ac310d8886e9c0a8892a8aa1a016639d13745148f85acc98c90cd31e0b3b