Aug 02 10:41:56.471 INFO checking esparse-0.0.4 against 1.27.2 for lazy_static-1
Aug 02 10:41:56.471 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:41:56.471 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:41:56.472 INFO running `"docker" "create" "-v" "/tmp/crater.HzQ4LwuaqEnz:/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 02 10:41:56.667 INFO blam! 029aa27c2aa8ca37cc08a01eeb3e8ea6c934c57ec14c35659a021a40b2dc1f6e
Aug 02 10:41:56.671 INFO running `"docker" "start" "-a" "029aa27c2aa8ca37cc08a01eeb3e8ea6c934c57ec14c35659a021a40b2dc1f6e"`
Aug 02 10:41:58.474 INFO kablam!     Checking esparse v0.0.4 (file:///source)
Aug 02 10:41:59.351 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:41:59.351 INFO kablam!  --> src/lib.rs:3:19
Aug 02 10:41:59.351 INFO kablam!   |
Aug 02 10:41:59.351 INFO kablam! 3 | #![cfg_attr(test, feature(test))]
Aug 02 10:41:59.351 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 10:41:59.351 INFO kablam! 
Aug 02 10:41:59.363 INFO kablam! error: aborting due to previous error
Aug 02 10:41:59.380 INFO kablam! 
Aug 02 10:41:59.380 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:41:59.399 INFO kablam! error: Could not compile `esparse`.
Aug 02 10:41:59.400 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:42:01.084 INFO kablam! error: build failed
Aug 02 10:42:01.085 INFO kablam! su: No module specific data is present
Aug 02 10:42:01.660 INFO running `"docker" "rm" "-f" "029aa27c2aa8ca37cc08a01eeb3e8ea6c934c57ec14c35659a021a40b2dc1f6e"`
Aug 02 10:42:01.821 INFO blam! 029aa27c2aa8ca37cc08a01eeb3e8ea6c934c57ec14c35659a021a40b2dc1f6e