Aug 01 17:03:12.890 INFO checking cswinter/LocustDB against 1.27.2 for lazy_static-1
Aug 01 17:03:12.890 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:03:12.890 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:03:12.890 INFO running `"docker" "create" "-v" "/tmp/crater.6tXXuOLkttOo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 17:03:13.106 INFO blam! e4fe02fe6046f98feb9586ed48c12695cda727211019695e3ed0e9c3167687b4
Aug 01 17:03:13.109 INFO running `"docker" "start" "-a" "e4fe02fe6046f98feb9586ed48c12695cda727211019695e3ed0e9c3167687b4"`
Aug 01 17:03:14.492 INFO kablam!     Checking either v1.5.0
Aug 01 17:03:14.495 INFO kablam!    Compiling heapsize v0.4.2
Aug 01 17:03:14.495 INFO kablam!     Checking lru v0.1.7
Aug 01 17:03:14.497 INFO kablam!     Checking log v0.4.3
Aug 01 17:03:14.498 INFO kablam!    Compiling synstructure v0.5.2
Aug 01 17:03:14.499 INFO kablam!     Checking bincode v1.0.1
Aug 01 17:03:16.760 INFO kablam!    Compiling heapsize_derive v0.1.4
Aug 01 17:03:17.325 INFO kablam!     Checking futures-core v0.2.1
Aug 01 17:03:17.326 INFO kablam!     Checking itertools v0.5.10
Aug 01 17:03:18.222 INFO kablam!     Checking env_logger v0.5.11
Aug 01 17:03:21.325 INFO kablam!     Checking futures-channel v0.2.1
Aug 01 17:03:21.326 INFO kablam!     Checking futures-io v0.2.1
Aug 01 17:03:25.776 INFO kablam!     Checking futures-sink v0.2.1
Aug 01 17:03:27.596 INFO kablam!     Checking futures-util v0.2.1
Aug 01 17:03:35.367 INFO kablam!     Checking futures-executor v0.2.1
Aug 01 17:03:36.270 INFO kablam!     Checking locustdb v0.1.0-alpha (file:///source)
Aug 01 17:03:40.022 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:03:40.022 INFO kablam!  --> src/lib.rs:1:1
Aug 01 17:03:40.022 INFO kablam!   |
Aug 01 17:03:40.022 INFO kablam! 1 | #![feature(fn_traits, integer_atomics, refcell_replace_swap, specialization, trait_alias, core_intrinsics, box_patterns)]
Aug 01 17:03:40.022 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:03:40.022 INFO kablam! 
Aug 01 17:03:40.110 INFO kablam! error: aborting due to previous error
Aug 01 17:03:40.110 INFO kablam! 
Aug 01 17:03:40.110 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:03:40.146 INFO kablam! error: Could not compile `locustdb`.
Aug 01 17:03:40.146 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 17:03:40.342 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:03:40.342 INFO kablam!  --> src/lib.rs:1:1
Aug 01 17:03:40.342 INFO kablam!   |
Aug 01 17:03:40.342 INFO kablam! 1 | #![feature(fn_traits, integer_atomics, refcell_replace_swap, specialization, trait_alias, core_intrinsics, box_patterns)]
Aug 01 17:03:40.342 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:03:40.342 INFO kablam! 
Aug 01 17:03:40.398 INFO kablam! error: aborting due to previous error
Aug 01 17:03:40.398 INFO kablam! 
Aug 01 17:03:40.398 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:03:40.426 INFO kablam! error: Could not compile `locustdb`.
Aug 01 17:03:40.426 INFO kablam! 
Aug 01 17:03:40.426 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 17:03:40.428 INFO kablam! su: No module specific data is present
Aug 01 17:03:40.975 INFO running `"docker" "rm" "-f" "e4fe02fe6046f98feb9586ed48c12695cda727211019695e3ed0e9c3167687b4"`
Aug 01 17:03:41.138 INFO blam! e4fe02fe6046f98feb9586ed48c12695cda727211019695e3ed0e9c3167687b4