Aug 02 05:04:47.489 INFO checking lmdb-0.8.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 05:04:47.489 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:04:47.489 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:04:47.489 INFO running `"docker" "create" "-v" "/tmp/crater.7zu6SRqDfUve:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 05:04:47.778 INFO blam! 7126a3a57142df1b532b1e615c3f52a7501a99d4a8f66e849f28ad87fc309c3a
Aug 02 05:04:47.780 INFO running `"docker" "start" "-a" "7126a3a57142df1b532b1e615c3f52a7501a99d4a8f66e849f28ad87fc309c3a"`
Aug 02 05:04:49.331 INFO kablam!    Compiling lmdb-sys v0.8.0
Aug 02 05:04:56.157 INFO kablam!     Checking lmdb v0.8.0 (file:///source)
Aug 02 05:04:57.785 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:57.785 INFO kablam!  --> src/lib.rs:4:19
Aug 02 05:04:57.785 INFO kablam!   |
Aug 02 05:04:57.785 INFO kablam! 4 | #![cfg_attr(test, feature(test))]
Aug 02 05:04:57.785 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 05:04:57.785 INFO kablam! 
Aug 02 05:04:57.815 INFO kablam! error: aborting due to previous error
Aug 02 05:04:57.824 INFO kablam! 
Aug 02 05:04:57.825 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:57.840 INFO kablam! error: Could not compile `lmdb`.
Aug 02 05:04:57.840 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:58.472 INFO kablam! error: build failed
Aug 02 05:04:58.475 INFO kablam! su: No module specific data is present
Aug 02 05:04:59.014 INFO running `"docker" "rm" "-f" "7126a3a57142df1b532b1e615c3f52a7501a99d4a8f66e849f28ad87fc309c3a"`
Aug 02 05:04:59.213 INFO blam! 7126a3a57142df1b532b1e615c3f52a7501a99d4a8f66e849f28ad87fc309c3a