Aug 01 23:57:11.515 INFO checking ruma-identifiers-0.11.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 23:57:11.515 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:11.515 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:11.515 INFO running `"docker" "create" "-v" "/tmp/crater.dOXLLm1SelmA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 23:57:11.751 INFO blam! 7effd3f56ffc542335919b3416ac332285a6208b2ceb17f65f8e104d7d959906
Aug 01 23:57:11.753 INFO running `"docker" "start" "-a" "7effd3f56ffc542335919b3416ac332285a6208b2ceb17f65f8e104d7d959906"`
Aug 01 23:57:12.991 INFO kablam!     Checking ruma-identifiers v0.11.0 (file:///source)
Aug 01 23:57:14.228 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:57:14.228 INFO kablam!  --> src/lib.rs:4:1
Aug 01 23:57:14.228 INFO kablam!   |
Aug 01 23:57:14.228 INFO kablam! 4 | #![feature(try_from)]
Aug 01 23:57:14.228 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:57:14.228 INFO kablam! 
Aug 01 23:57:14.231 INFO kablam! error: aborting due to previous error
Aug 01 23:57:14.231 INFO kablam! 
Aug 01 23:57:14.232 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:57:14.243 INFO kablam! error: Could not compile `ruma-identifiers`.
Aug 01 23:57:14.243 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:57:14.328 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:57:14.328 INFO kablam!  --> src/lib.rs:4:1
Aug 01 23:57:14.328 INFO kablam!   |
Aug 01 23:57:14.328 INFO kablam! 4 | #![feature(try_from)]
Aug 01 23:57:14.328 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:57:14.328 INFO kablam! 
Aug 01 23:57:14.335 INFO kablam! error: aborting due to previous error
Aug 01 23:57:14.336 INFO kablam! 
Aug 01 23:57:14.336 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:57:14.360 INFO kablam! error: Could not compile `ruma-identifiers`.
Aug 01 23:57:14.361 INFO kablam! 
Aug 01 23:57:14.361 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 23:57:14.365 INFO kablam! su: No module specific data is present
Aug 01 23:57:15.394 INFO running `"docker" "rm" "-f" "7effd3f56ffc542335919b3416ac332285a6208b2ceb17f65f8e104d7d959906"`
Aug 01 23:57:15.555 INFO blam! 7effd3f56ffc542335919b3416ac332285a6208b2ceb17f65f8e104d7d959906