Aug 01 23:57:13.678 INFO checking ruma-identifiers-0.11.0 against 1.27.2 for lazy_static-1
Aug 01 23:57:13.678 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:13.678 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:57:13.678 INFO running `"docker" "create" "-v" "/tmp/crater.mtpzXhunoFwD:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 01 23:57:13.938 INFO blam! 2ca28d579565cb21b2775490558d98e06f886a8b10f86ce9844dd5c66a0ba247
Aug 01 23:57:13.940 INFO running `"docker" "start" "-a" "2ca28d579565cb21b2775490558d98e06f886a8b10f86ce9844dd5c66a0ba247"`
Aug 01 23:57:15.091 INFO kablam!     Checking ruma-identifiers v0.11.0 (file:///source)
Aug 01 23:57:15.854 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:57:15.854 INFO kablam!  --> src/lib.rs:4:1
Aug 01 23:57:15.854 INFO kablam!   |
Aug 01 23:57:15.854 INFO kablam! 4 | #![feature(try_from)]
Aug 01 23:57:15.854 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:57:15.855 INFO kablam! 
Aug 01 23:57:15.859 INFO kablam! error: aborting due to previous error
Aug 01 23:57:15.860 INFO kablam! 
Aug 01 23:57:15.860 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:57:15.875 INFO kablam! error: Could not compile `ruma-identifiers`.
Aug 01 23:57:15.876 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:57:15.932 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:57:15.932 INFO kablam!  --> src/lib.rs:4:1
Aug 01 23:57:15.933 INFO kablam!   |
Aug 01 23:57:15.933 INFO kablam! 4 | #![feature(try_from)]
Aug 01 23:57:15.933 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:57:15.933 INFO kablam! 
Aug 01 23:57:15.940 INFO kablam! error: aborting due to previous error
Aug 01 23:57:15.940 INFO kablam! 
Aug 01 23:57:15.940 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:57:15.954 INFO kablam! error: Could not compile `ruma-identifiers`.
Aug 01 23:57:15.955 INFO kablam! 
Aug 01 23:57:15.955 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 23:57:15.957 INFO kablam! su: No module specific data is present
Aug 01 23:57:16.651 INFO running `"docker" "rm" "-f" "2ca28d579565cb21b2775490558d98e06f886a8b10f86ce9844dd5c66a0ba247"`
Aug 01 23:57:16.845 INFO blam! 2ca28d579565cb21b2775490558d98e06f886a8b10f86ce9844dd5c66a0ba247