Aug 02 01:58:29.592 INFO checking pretty-hash-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 01:58:29.592 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:58:29.592 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:58:29.592 INFO running `"docker" "create" "-v" "/tmp/crater.53bmyTsIck7u:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 02 01:58:29.951 INFO blam! 14bf0e8ff249ac35d3bfca89be7adbb3815fdd5d69593a2267d3c2eda62b9161
Aug 02 01:58:29.953 INFO running `"docker" "start" "-a" "14bf0e8ff249ac35d3bfca89be7adbb3815fdd5d69593a2267d3c2eda62b9161"`
Aug 02 01:58:31.191 INFO kablam!     Checking pretty-hash v0.2.0 (file:///source)
Aug 02 01:58:31.645 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:58:31.645 INFO kablam!  --> src/lib.rs:3:1
Aug 02 01:58:31.645 INFO kablam!   |
Aug 02 01:58:31.645 INFO kablam! 3 | #![feature(external_doc)]
Aug 02 01:58:31.645 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:58:31.645 INFO kablam! 
Aug 02 01:58:31.645 INFO kablam! error: aborting due to previous error
Aug 02 01:58:31.645 INFO kablam! 
Aug 02 01:58:31.645 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:58:31.650 INFO kablam! error: Could not compile `pretty-hash`.
Aug 02 01:58:31.651 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:58:31.668 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:58:31.668 INFO kablam!  --> src/lib.rs:3:1
Aug 02 01:58:31.668 INFO kablam!   |
Aug 02 01:58:31.668 INFO kablam! 3 | #![feature(external_doc)]
Aug 02 01:58:31.668 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:58:31.668 INFO kablam! 
Aug 02 01:58:31.668 INFO kablam! error: aborting due to previous error
Aug 02 01:58:31.668 INFO kablam! 
Aug 02 01:58:31.668 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:58:31.676 INFO kablam! error: Could not compile `pretty-hash`.
Aug 02 01:58:31.676 INFO kablam! 
Aug 02 01:58:31.676 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 01:58:31.677 INFO kablam! su: No module specific data is present
Aug 02 01:58:32.229 INFO running `"docker" "rm" "-f" "14bf0e8ff249ac35d3bfca89be7adbb3815fdd5d69593a2267d3c2eda62b9161"`
Aug 02 01:58:32.386 INFO blam! 14bf0e8ff249ac35d3bfca89be7adbb3815fdd5d69593a2267d3c2eda62b9161