Aug 02 01:32:02.203 INFO checking quickersort-2.2.0 against 1.27.2 for lazy_static-1
Aug 02 01:32:02.203 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:02.203 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:02.203 INFO running `"docker" "create" "-v" "/tmp/crater.ok5By4NRRE2u:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 02 01:32:02.426 INFO blam! 9936799077da73cef05aa71061a74d1108d85f4e0f9802901b2190ff9de29fbb
Aug 02 01:32:02.428 INFO running `"docker" "start" "-a" "9936799077da73cef05aa71061a74d1108d85f4e0f9802901b2190ff9de29fbb"`
Aug 02 01:32:03.595 INFO kablam!     Checking itertools v0.3.25
Aug 02 01:32:03.601 INFO kablam!     Checking quickersort v2.2.0 (file:///source)
Aug 02 01:32:04.118 INFO kablam! warning: unused import: `unreachable::UncheckedOptionExt`
Aug 02 01:32:04.118 INFO kablam!   --> src/sort.rs:11:5
Aug 02 01:32:04.118 INFO kablam!    |
Aug 02 01:32:04.118 INFO kablam! 11 | use unreachable::UncheckedOptionExt;
Aug 02 01:32:04.118 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:32:04.118 INFO kablam!    |
Aug 02 01:32:04.118 INFO kablam!    = note: #[warn(unused_imports)] on by default
Aug 02 01:32:04.119 INFO kablam! 
Aug 02 01:32:09.287 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:32:09.287 INFO kablam!  --> benches/float.rs:5:1
Aug 02 01:32:09.287 INFO kablam!   |
Aug 02 01:32:09.287 INFO kablam! 5 | #![feature(test)]
Aug 02 01:32:09.287 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:32:09.287 INFO kablam! 
Aug 02 01:32:09.305 INFO kablam! error: aborting due to previous error
Aug 02 01:32:09.305 INFO kablam! 
Aug 02 01:32:09.305 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:32:09.342 INFO kablam! error: Could not compile `quickersort`.
Aug 02 01:32:09.342 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:32:09.622 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:32:09.622 INFO kablam!  --> benches/bench.rs:5:1
Aug 02 01:32:09.622 INFO kablam!   |
Aug 02 01:32:09.622 INFO kablam! 5 | #![feature(test)]
Aug 02 01:32:09.622 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:32:09.637 INFO kablam! 
Aug 02 01:32:09.638 INFO kablam! error: aborting due to previous error
Aug 02 01:32:09.638 INFO kablam! 
Aug 02 01:32:09.638 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:32:09.651 INFO kablam! error: Could not compile `quickersort`.
Aug 02 01:32:09.652 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:32:09.878 INFO kablam! error: build failed
Aug 02 01:32:09.880 INFO kablam! su: No module specific data is present
Aug 02 01:32:10.445 INFO running `"docker" "rm" "-f" "9936799077da73cef05aa71061a74d1108d85f4e0f9802901b2190ff9de29fbb"`
Aug 02 01:32:10.613 INFO blam! 9936799077da73cef05aa71061a74d1108d85f4e0f9802901b2190ff9de29fbb