Aug 02 07:31:49.181 INFO checking gtrie-0.4.0 against 1.27.2 for lazy_static-1
Aug 02 07:31:49.181 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:31:49.181 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:31:49.181 INFO running `"docker" "create" "-v" "/tmp/crater.fVUFQYpmYUzF:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 07:31:49.438 INFO blam! f53a1be4e7d3f5937a368b7967e9212a4e3021ad66c6c6d66947d29880ffed44
Aug 02 07:31:49.440 INFO running `"docker" "start" "-a" "f53a1be4e7d3f5937a368b7967e9212a4e3021ad66c6c6d66947d29880ffed44"`
Aug 02 07:31:50.755 INFO kablam!     Checking gtrie v0.4.0 (file:///source)
Aug 02 07:31:51.495 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:31:51.495 INFO kablam!  --> benches/basic_benchmark.rs:1:1
Aug 02 07:31:51.495 INFO kablam!   |
Aug 02 07:31:51.495 INFO kablam! 1 | #![feature(test)]
Aug 02 07:31:51.495 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 07:31:51.495 INFO kablam! 
Aug 02 07:31:51.495 INFO kablam! error: aborting due to previous error
Aug 02 07:31:51.495 INFO kablam! 
Aug 02 07:31:51.496 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:31:51.503 INFO kablam! error: Could not compile `gtrie`.
Aug 02 07:31:51.504 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:31:51.680 INFO kablam! error: build failed
Aug 02 07:31:51.681 INFO kablam! su: No module specific data is present
Aug 02 07:31:53.039 INFO running `"docker" "rm" "-f" "f53a1be4e7d3f5937a368b7967e9212a4e3021ad66c6c6d66947d29880ffed44"`
Aug 02 07:31:53.151 INFO blam! f53a1be4e7d3f5937a368b7967e9212a4e3021ad66c6c6d66947d29880ffed44