Aug 11 18:59:32.467 INFO checking blissb-0.1.0 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 18:59:32.467 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 18:59:32.467 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 18:59:32.467 INFO running `"docker" "create" "-v" "/tmp/crater.hTchz2feWNAD:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-3/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 18:59:32.714 INFO blam! aed946264b144ec2c29095a78471b09f015b31ea8587ca1ab34d4bd0364acf0b
Aug 11 18:59:32.717 INFO running `"docker" "start" "-a" "aed946264b144ec2c29095a78471b09f015b31ea8587ca1ab34d4bd0364acf0b"`
Aug 11 18:59:33.731 INFO kablam!     Checking bitpack v0.1.1
Aug 11 18:59:34.094 INFO kablam!     Checking blissb v0.1.0 (file:///source)
Aug 11 18:59:36.290 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Aug 11 18:59:36.290 INFO kablam!  --> src/lib.rs:1:21
Aug 11 18:59:36.290 INFO kablam!   |
Aug 11 18:59:36.290 INFO kablam! 1 | #![feature(step_by, question_mark)]
Aug 11 18:59:36.290 INFO kablam!   |                     ^^^^^^^^^^^^^
Aug 11 18:59:36.290 INFO kablam!   |
Aug 11 18:59:36.290 INFO kablam!   = note: #[warn(stable_features)] on by default
Aug 11 18:59:36.290 INFO kablam! 
Aug 11 18:59:36.293 INFO kablam! error[E0635]: unknown feature `step_by`
Aug 11 18:59:36.293 INFO kablam!  --> src/lib.rs:1:12
Aug 11 18:59:36.293 INFO kablam!   |
Aug 11 18:59:36.293 INFO kablam! 1 | #![feature(step_by, question_mark)]
Aug 11 18:59:36.293 INFO kablam!   |            ^^^^^^^
Aug 11 18:59:36.293 INFO kablam! 
Aug 11 18:59:36.348 INFO kablam! error: aborting due to previous error
Aug 11 18:59:36.348 INFO kablam! 
Aug 11 18:59:36.348 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 18:59:36.383 INFO kablam! error: Could not compile `blissb`.
Aug 11 18:59:36.383 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 18:59:36.495 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Aug 11 18:59:36.495 INFO kablam!  --> src/lib.rs:1:21
Aug 11 18:59:36.495 INFO kablam!   |
Aug 11 18:59:36.495 INFO kablam! 1 | #![feature(step_by, question_mark)]
Aug 11 18:59:36.495 INFO kablam!   |                     ^^^^^^^^^^^^^
Aug 11 18:59:36.495 INFO kablam!   |
Aug 11 18:59:36.495 INFO kablam!   = note: #[warn(stable_features)] on by default
Aug 11 18:59:36.496 INFO kablam! 
Aug 11 18:59:36.499 INFO kablam! error[E0635]: unknown feature `step_by`
Aug 11 18:59:36.499 INFO kablam!  --> src/lib.rs:1:12
Aug 11 18:59:36.499 INFO kablam!   |
Aug 11 18:59:36.499 INFO kablam! 1 | #![feature(step_by, question_mark)]
Aug 11 18:59:36.499 INFO kablam!   |            ^^^^^^^
Aug 11 18:59:36.499 INFO kablam! 
Aug 11 18:59:36.522 INFO kablam! error: aborting due to previous error
Aug 11 18:59:36.522 INFO kablam! 
Aug 11 18:59:36.522 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 18:59:36.532 INFO kablam! error: Could not compile `blissb`.
Aug 11 18:59:36.532 INFO kablam! 
Aug 11 18:59:36.532 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 18:59:36.533 INFO kablam! su: No module specific data is present
Aug 11 18:59:37.266 INFO running `"docker" "rm" "-f" "aed946264b144ec2c29095a78471b09f015b31ea8587ca1ab34d4bd0364acf0b"`
Aug 11 18:59:37.421 INFO blam! aed946264b144ec2c29095a78471b09f015b31ea8587ca1ab34d4bd0364acf0b