Sep 01 09:30:45.995 INFO checking blissb-0.1.0 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Sep 01 09:30:45.995 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Sep 01 09:30:45.995 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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=500" "-e" "CMD=cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:30:46.195 INFO blam! 44b6c043d994a89267773f50f75e14321786191042b000fd5898b17cb97125bf
Sep 01 09:30:46.199 INFO running `"docker" "start" "-a" "44b6c043d994a89267773f50f75e14321786191042b000fd5898b17cb97125bf"`
Sep 01 09:30:47.005 INFO kablam!     Checking bitpack v0.1.1
Sep 01 09:30:47.207 INFO kablam!     Checking blissb v0.1.0 (file:///source)
Sep 01 09:30:48.673 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 01 09:30:48.673 INFO kablam!  --> src/lib.rs:1:21
Sep 01 09:30:48.673 INFO kablam!   |
Sep 01 09:30:48.673 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 01 09:30:48.673 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 01 09:30:48.673 INFO kablam!   |
Sep 01 09:30:48.673 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 09:30:48.673 INFO kablam! 
Sep 01 09:30:48.674 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 01 09:30:48.674 INFO kablam!  --> src/lib.rs:1:12
Sep 01 09:30:48.674 INFO kablam!   |
Sep 01 09:30:48.674 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 01 09:30:48.674 INFO kablam!   |            ^^^^^^^
Sep 01 09:30:48.674 INFO kablam! 
Sep 01 09:30:48.708 INFO kablam! error: aborting due to previous error
Sep 01 09:30:48.708 INFO kablam! 
Sep 01 09:30:48.708 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 09:30:48.718 INFO kablam! error: Could not compile `blissb`.
Sep 01 09:30:48.718 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 09:30:49.153 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 01 09:30:49.154 INFO kablam!  --> src/lib.rs:1:21
Sep 01 09:30:49.154 INFO kablam!   |
Sep 01 09:30:49.154 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 01 09:30:49.154 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 01 09:30:49.154 INFO kablam!   |
Sep 01 09:30:49.154 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 09:30:49.154 INFO kablam! 
Sep 01 09:30:49.154 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 01 09:30:49.154 INFO kablam!  --> src/lib.rs:1:12
Sep 01 09:30:49.154 INFO kablam!   |
Sep 01 09:30:49.154 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 01 09:30:49.154 INFO kablam!   |            ^^^^^^^
Sep 01 09:30:49.154 INFO kablam! 
Sep 01 09:30:49.180 INFO kablam! error: aborting due to previous error
Sep 01 09:30:49.180 INFO kablam! 
Sep 01 09:30:49.180 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 09:30:49.191 INFO kablam! error: Could not compile `blissb`.
Sep 01 09:30:49.191 INFO kablam! 
Sep 01 09:30:49.191 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 09:30:49.192 INFO kablam! su: No module specific data is present
Sep 01 09:30:49.714 INFO running `"docker" "rm" "-f" "44b6c043d994a89267773f50f75e14321786191042b000fd5898b17cb97125bf"`
Sep 01 09:30:49.806 INFO blam! 44b6c043d994a89267773f50f75e14321786191042b000fd5898b17cb97125bf