Sep 21 13:12:38.931 INFO checking automata-0.0.2 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 13:12:38.931 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 13:12:38.931 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-0/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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" "-e" "USER_ID=1000" "-e" "CMD=cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 13:12:39.109 INFO blam! b158246b7f720155584fc57fab2fa5f507c8ad3310c980ddc634f49b7f57508c
Sep 21 13:12:39.111 INFO running `"docker" "start" "-a" "b158246b7f720155584fc57fab2fa5f507c8ad3310c980ddc634f49b7f57508c"`
Sep 21 13:12:39.910 INFO kablam! usermod: no changes
Sep 21 13:12:39.950 INFO kablam!     Checking automata v0.0.2 (/source)
Sep 21 13:12:40.436 INFO kablam! error[E0635]: unknown feature `io`
Sep 21 13:12:40.436 INFO kablam!  --> src/lib.rs:1:12
Sep 21 13:12:40.436 INFO kablam!   |
Sep 21 13:12:40.436 INFO kablam! 1 | #![feature(io)]
Sep 21 13:12:40.436 INFO kablam!   |            ^^
Sep 21 13:12:40.436 INFO kablam! 
Sep 21 13:12:40.449 INFO kablam! error: aborting due to previous error
Sep 21 13:12:40.449 INFO kablam! 
Sep 21 13:12:40.449 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 13:12:40.451 INFO kablam! error: Could not compile `automata`.
Sep 21 13:12:40.451 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 21 13:12:40.606 INFO kablam! error[E0635]: unknown feature `io`
Sep 21 13:12:40.606 INFO kablam!  --> src/lib.rs:1:12
Sep 21 13:12:40.606 INFO kablam!   |
Sep 21 13:12:40.606 INFO kablam! 1 | #![feature(io)]
Sep 21 13:12:40.606 INFO kablam!   |            ^^
Sep 21 13:12:40.606 INFO kablam! 
Sep 21 13:12:40.616 INFO kablam! error: aborting due to previous error
Sep 21 13:12:40.616 INFO kablam! 
Sep 21 13:12:40.616 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 13:12:40.624 INFO kablam! error: Could not compile `automata`.
Sep 21 13:12:40.624 INFO kablam! 
Sep 21 13:12:40.624 INFO kablam! To learn more, run the command again with --verbose.
Sep 21 13:12:40.626 INFO kablam! su: No module specific data is present
Sep 21 13:12:41.239 INFO running `"docker" "rm" "-f" "b158246b7f720155584fc57fab2fa5f507c8ad3310c980ddc634f49b7f57508c"`
Sep 21 13:12:41.367 INFO blam! b158246b7f720155584fc57fab2fa5f507c8ad3310c980ddc634f49b7f57508c