Aug 02 01:32:00.243 INFO checking quickersort-2.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 01:32:00.243 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:00.243 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:00.243 INFO running `"docker" "create" "-v" "/tmp/crater.DliKCxN2JhN9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 01:32:00.503 INFO blam! e01e45fc2a10ab340afe81e964f70f073f949ce2af20f6a11f39dae43821811c
Aug 02 01:32:00.506 INFO running `"docker" "start" "-a" "e01e45fc2a10ab340afe81e964f70f073f949ce2af20f6a11f39dae43821811c"`
Aug 02 01:32:01.605 INFO kablam!     Checking itertools v0.3.25
Aug 02 01:32:01.613 INFO kablam!     Checking quickersort v2.2.0 (file:///source)
Aug 02 01:32:02.171 INFO kablam! warning: unused import: `unreachable::UncheckedOptionExt`
Aug 02 01:32:02.171 INFO kablam!   --> src/sort.rs:11:5
Aug 02 01:32:02.171 INFO kablam!    |
Aug 02 01:32:02.171 INFO kablam! 11 | use unreachable::UncheckedOptionExt;
Aug 02 01:32:02.171 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:32:02.181 INFO kablam!    |
Aug 02 01:32:02.181 INFO kablam!    = note: #[warn(unused_imports)] on by default
Aug 02 01:32:02.182 INFO kablam! 
Aug 02 01:32:05.879 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:32:05.879 INFO kablam!  --> benches/bench.rs:5:1
Aug 02 01:32:05.879 INFO kablam!   |
Aug 02 01:32:05.879 INFO kablam! 5 | #![feature(test)]
Aug 02 01:32:05.879 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:32:05.879 INFO kablam! 
Aug 02 01:32:05.880 INFO kablam! error: aborting due to previous error
Aug 02 01:32:05.880 INFO kablam! 
Aug 02 01:32:05.880 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:32:05.887 INFO kablam! error: Could not compile `quickersort`.
Aug 02 01:32:05.887 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:32:06.995 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:32:06.995 INFO kablam!  --> benches/float.rs:5:1
Aug 02 01:32:06.995 INFO kablam!   |
Aug 02 01:32:06.995 INFO kablam! 5 | #![feature(test)]
Aug 02 01:32:06.995 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:32:07.030 INFO kablam! 
Aug 02 01:32:07.030 INFO kablam! error: aborting due to previous error
Aug 02 01:32:07.031 INFO kablam! 
Aug 02 01:32:07.032 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:32:07.039 INFO kablam! error: Could not compile `quickersort`.
Aug 02 01:32:07.039 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:32:07.299 INFO kablam! error: build failed
Aug 02 01:32:07.301 INFO kablam! su: No module specific data is present
Aug 02 01:32:07.819 INFO running `"docker" "rm" "-f" "e01e45fc2a10ab340afe81e964f70f073f949ce2af20f6a11f39dae43821811c"`
Aug 02 01:32:07.972 INFO blam! e01e45fc2a10ab340afe81e964f70f073f949ce2af20f6a11f39dae43821811c