Aug 01 22:40:19.398 INFO checking serde-pickle-0.4.1 against 1.27.2 for lazy_static-1
Aug 01 22:40:19.398 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:40:19.398 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:40:19.398 INFO running `"docker" "create" "-v" "/tmp/crater.AC1CoxCUyIN8:/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 01 22:40:19.633 INFO blam! 27f614e40cc3810922feca6505a98bc0ba90d44740f249ad10b26c4907072232
Aug 01 22:40:19.636 INFO running `"docker" "start" "-a" "27f614e40cc3810922feca6505a98bc0ba90d44740f249ad10b26c4907072232"`
Aug 01 22:40:20.654 INFO kablam!     Checking iter-read v0.1.0
Aug 01 22:40:20.660 INFO kablam!     Checking num-bigint v0.1.44
Aug 01 22:40:25.281 INFO kablam!     Checking serde-pickle v0.4.1 (file:///source)
Aug 01 22:40:27.659 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:40:27.659 INFO kablam!   --> src/lib.rs:49:19
Aug 01 22:40:27.659 INFO kablam!    |
Aug 01 22:40:27.659 INFO kablam! 49 | #![cfg_attr(test, feature(test))]
Aug 01 22:40:27.659 INFO kablam!    |                   ^^^^^^^^^^^^^^
Aug 01 22:40:27.660 INFO kablam! 
Aug 01 22:40:27.683 INFO kablam! error: aborting due to previous error
Aug 01 22:40:27.696 INFO kablam! 
Aug 01 22:40:27.697 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:40:27.725 INFO kablam! error: Could not compile `serde-pickle`.
Aug 01 22:40:27.726 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 22:40:29.410 INFO kablam! error: build failed
Aug 01 22:40:29.412 INFO kablam! su: No module specific data is present
Aug 01 22:40:29.971 INFO running `"docker" "rm" "-f" "27f614e40cc3810922feca6505a98bc0ba90d44740f249ad10b26c4907072232"`
Aug 01 22:40:30.110 INFO blam! 27f614e40cc3810922feca6505a98bc0ba90d44740f249ad10b26c4907072232