Aug 02 06:39:41.250 INFO checking intercom-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 06:39:41.250 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:41.250 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:41.250 INFO running `"docker" "create" "-v" "/tmp/crater.m2S8HuZvPD5Y:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 06:39:41.559 INFO blam! d46d7b1ac608bed97513b01f755e5709454b18975e437b53fe1c08628ee00498
Aug 02 06:39:41.561 INFO running `"docker" "start" "-a" "d46d7b1ac608bed97513b01f755e5709454b18975e437b53fe1c08628ee00498"`
Aug 02 06:39:44.307 INFO kablam!    Compiling sha1 v0.3.0
Aug 02 06:39:45.566 INFO kablam!    Compiling intercom-common v0.2.0
Aug 02 06:39:53.529 INFO kablam!    Compiling intercom-attributes v0.2.0
Aug 02 06:39:55.181 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:55.181 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:1:1
Aug 02 06:39:55.181 INFO kablam!   |
Aug 02 06:39:55.181 INFO kablam! 1 | #![feature(proc_macro)]
Aug 02 06:39:55.181 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:55.182 INFO kablam! 
Aug 02 06:39:55.182 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:55.182 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:3:1
Aug 02 06:39:55.182 INFO kablam!   |
Aug 02 06:39:55.182 INFO kablam! 3 | #![feature(catch_expr)]
Aug 02 06:39:55.182 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:55.182 INFO kablam! 
Aug 02 06:39:55.182 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:55.182 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:4:1
Aug 02 06:39:55.182 INFO kablam!   |
Aug 02 06:39:55.182 INFO kablam! 4 | #![feature(type_ascription)]
Aug 02 06:39:55.182 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:55.182 INFO kablam! 
Aug 02 06:39:55.185 INFO kablam! error: aborting due to 3 previous errors
Aug 02 06:39:55.185 INFO kablam! 
Aug 02 06:39:55.185 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:39:55.205 INFO kablam! error: Could not compile `intercom-attributes`.
Aug 02 06:39:55.205 INFO kablam! 
Aug 02 06:39:55.205 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 06:39:55.206 INFO kablam! su: No module specific data is present
Aug 02 06:39:55.923 INFO running `"docker" "rm" "-f" "d46d7b1ac608bed97513b01f755e5709454b18975e437b53fe1c08628ee00498"`
Aug 02 06:39:56.120 INFO blam! d46d7b1ac608bed97513b01f755e5709454b18975e437b53fe1c08628ee00498