Sep 20 04:22:38.980 INFO checking blissb-0.1.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 04:22:38.980 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 04:22:38.980 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 04:22:39.367 INFO blam! 9f8af7e22976a14535d6dc92732cbb56f302b3d5f0b5c108172527e6d023f189
Sep 20 04:22:39.369 INFO running `"docker" "start" "-a" "9f8af7e22976a14535d6dc92732cbb56f302b3d5f0b5c108172527e6d023f189"`
Sep 20 04:22:40.458 INFO kablam! usermod: no changes
Sep 20 04:22:40.575 INFO kablam!     Checking bitpack v0.1.1
Sep 20 04:22:40.743 INFO kablam!     Checking blissb v0.1.0 (/source)
Sep 20 04:22:41.510 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 20 04:22:41.510 INFO kablam!  --> src/lib.rs:1:21
Sep 20 04:22:41.510 INFO kablam!   |
Sep 20 04:22:41.510 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 20 04:22:41.510 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 20 04:22:41.510 INFO kablam!   |
Sep 20 04:22:41.511 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 20 04:22:41.511 INFO kablam! 
Sep 20 04:22:41.511 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 20 04:22:41.511 INFO kablam!  --> src/lib.rs:1:12
Sep 20 04:22:41.511 INFO kablam!   |
Sep 20 04:22:41.511 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 20 04:22:41.511 INFO kablam!   |            ^^^^^^^
Sep 20 04:22:41.511 INFO kablam! 
Sep 20 04:22:41.535 INFO kablam! error: aborting due to previous error
Sep 20 04:22:41.535 INFO kablam! 
Sep 20 04:22:41.535 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 20 04:22:41.543 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 20 04:22:41.543 INFO kablam!  --> src/lib.rs:1:21
Sep 20 04:22:41.543 INFO kablam!   |
Sep 20 04:22:41.543 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 20 04:22:41.543 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 20 04:22:41.543 INFO kablam!   |
Sep 20 04:22:41.543 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 20 04:22:41.543 INFO kablam! 
Sep 20 04:22:41.543 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 20 04:22:41.543 INFO kablam!  --> src/lib.rs:1:12
Sep 20 04:22:41.543 INFO kablam!   |
Sep 20 04:22:41.543 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 20 04:22:41.543 INFO kablam!   |            ^^^^^^^
Sep 20 04:22:41.543 INFO kablam! 
Sep 20 04:22:41.543 INFO kablam! error: Could not compile `blissb`.
Sep 20 04:22:41.543 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 20 04:22:41.557 INFO kablam! error: aborting due to previous error
Sep 20 04:22:41.557 INFO kablam! 
Sep 20 04:22:41.557 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 20 04:22:41.575 INFO kablam! error: Could not compile `blissb`.
Sep 20 04:22:41.575 INFO kablam! 
Sep 20 04:22:41.575 INFO kablam! To learn more, run the command again with --verbose.
Sep 20 04:22:41.587 INFO kablam! su: No module specific data is present
Sep 20 04:22:42.481 INFO running `"docker" "rm" "-f" "9f8af7e22976a14535d6dc92732cbb56f302b3d5f0b5c108172527e6d023f189"`
Sep 20 04:22:42.695 INFO blam! 9f8af7e22976a14535d6dc92732cbb56f302b3d5f0b5c108172527e6d023f189