Sep 10 22:06:01.602 INFO checking blissb-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 22:06:01.602 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 22:06:01.602 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 22:06:01.764 INFO blam! 63891ee46727310861afb83ad3dfc0b74d0b17865eae9222dea2c0ffb5f1ada5
Sep 10 22:06:01.766 INFO running `"docker" "start" "-a" "63891ee46727310861afb83ad3dfc0b74d0b17865eae9222dea2c0ffb5f1ada5"`
Sep 10 22:06:02.750 INFO kablam! usermod: no changes
Sep 10 22:06:02.799 INFO kablam!     Checking bitpack v0.1.1
Sep 10 22:06:02.918 INFO kablam!     Checking blissb v0.1.0 (file:///source)
Sep 10 22:06:03.438 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 10 22:06:03.438 INFO kablam!  --> src/lib.rs:1:21
Sep 10 22:06:03.438 INFO kablam!   |
Sep 10 22:06:03.438 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 10 22:06:03.438 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 10 22:06:03.439 INFO kablam!   |
Sep 10 22:06:03.439 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 10 22:06:03.439 INFO kablam! 
Sep 10 22:06:03.442 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 10 22:06:03.442 INFO kablam!  --> src/lib.rs:1:12
Sep 10 22:06:03.442 INFO kablam!   |
Sep 10 22:06:03.442 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 10 22:06:03.442 INFO kablam!   |            ^^^^^^^
Sep 10 22:06:03.442 INFO kablam! 
Sep 10 22:06:03.458 INFO kablam! error: aborting due to previous error
Sep 10 22:06:03.458 INFO kablam! 
Sep 10 22:06:03.458 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 10 22:06:03.465 INFO kablam! error: Could not compile `blissb`.
Sep 10 22:06:03.465 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 22:06:03.510 INFO kablam! warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Sep 10 22:06:03.510 INFO kablam!  --> src/lib.rs:1:21
Sep 10 22:06:03.510 INFO kablam!   |
Sep 10 22:06:03.510 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 10 22:06:03.510 INFO kablam!   |                     ^^^^^^^^^^^^^
Sep 10 22:06:03.510 INFO kablam!   |
Sep 10 22:06:03.510 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 10 22:06:03.510 INFO kablam! 
Sep 10 22:06:03.510 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 10 22:06:03.510 INFO kablam!  --> src/lib.rs:1:12
Sep 10 22:06:03.511 INFO kablam!   |
Sep 10 22:06:03.511 INFO kablam! 1 | #![feature(step_by, question_mark)]
Sep 10 22:06:03.511 INFO kablam!   |            ^^^^^^^
Sep 10 22:06:03.511 INFO kablam! 
Sep 10 22:06:03.524 INFO kablam! error: aborting due to previous error
Sep 10 22:06:03.524 INFO kablam! 
Sep 10 22:06:03.524 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 10 22:06:03.532 INFO kablam! error: Could not compile `blissb`.
Sep 10 22:06:03.532 INFO kablam! 
Sep 10 22:06:03.532 INFO kablam! To learn more, run the command again with --verbose.
Sep 10 22:06:03.533 INFO kablam! su: No module specific data is present
Sep 10 22:06:04.307 INFO running `"docker" "rm" "-f" "63891ee46727310861afb83ad3dfc0b74d0b17865eae9222dea2c0ffb5f1ada5"`
Sep 10 22:06:04.418 INFO blam! 63891ee46727310861afb83ad3dfc0b74d0b17865eae9222dea2c0ffb5f1ada5