Aug 01 23:57:15.681 INFO checking ruma-events-0.9.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 23:57:15.681 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:15.681 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:15.681 INFO running `"docker" "create" "-v" "/tmp/crater.EhcUdIteSgwU:/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 01 23:57:15.891 INFO blam! ac529a12048b13ccb21a45d8122ba68e38b863eaafe00debac6b77bc645a6b7f
Aug 01 23:57:15.894 INFO running `"docker" "start" "-a" "ac529a12048b13ccb21a45d8122ba68e38b863eaafe00debac6b77bc645a6b7f"`
Aug 01 23:57:17.284 INFO kablam!     Checking ruma-identifiers v0.11.0
Aug 01 23:57:17.285 INFO kablam!     Checking ruma-signatures v0.4.0
Aug 01 23:57:17.824 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:57:17.824 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/ruma-identifiers-0.11.0/src/lib.rs:4:1
Aug 01 23:57:17.824 INFO kablam!   |
Aug 01 23:57:17.824 INFO kablam! 4 | #![feature(try_from)]
Aug 01 23:57:17.824 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:57:17.824 INFO kablam! 
Aug 01 23:57:17.826 INFO kablam! error: aborting due to previous error
Aug 01 23:57:17.826 INFO kablam! 
Aug 01 23:57:17.826 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:57:17.834 INFO kablam! error: Could not compile `ruma-identifiers`.
Aug 01 23:57:17.834 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:57:18.248 INFO kablam! error: build failed
Aug 01 23:57:18.250 INFO kablam! su: No module specific data is present
Aug 01 23:57:18.795 INFO running `"docker" "rm" "-f" "ac529a12048b13ccb21a45d8122ba68e38b863eaafe00debac6b77bc645a6b7f"`
Aug 01 23:57:18.970 INFO blam! ac529a12048b13ccb21a45d8122ba68e38b863eaafe00debac6b77bc645a6b7f