Aug 02 10:51:26.622 INFO checking encoding-0.2.33 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:51:26.622 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:26.622 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:26.622 INFO running `"docker" "create" "-v" "/tmp/crater.FHOZaH0h5yZ5:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 10:51:26.827 INFO blam! 5aca65d7773422a3a175c1ec9ea12e730e6f6be49a7800bb6244357ff04f0df8
Aug 02 10:51:26.830 INFO running `"docker" "start" "-a" "5aca65d7773422a3a175c1ec9ea12e730e6f6be49a7800bb6244357ff04f0df8"`
Aug 02 10:51:27.956 INFO kablam!     Checking encoding v0.2.33 (file:///source)
Aug 02 10:51:30.879 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:30.879 INFO kablam!    --> src/lib.rs:207:19
Aug 02 10:51:30.879 INFO kablam!     |
Aug 02 10:51:30.879 INFO kablam! 207 | #![cfg_attr(test, feature(test))] // lib stability features as per RFC #507
Aug 02 10:51:30.879 INFO kablam!     |                   ^^^^^^^^^^^^^^
Aug 02 10:51:30.879 INFO kablam! 
Aug 02 10:51:31.127 INFO kablam! error: aborting due to previous error
Aug 02 10:51:31.127 INFO kablam! 
Aug 02 10:51:31.127 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:31.165 INFO kablam! error: Could not compile `encoding`.
Aug 02 10:51:31.165 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:31.422 INFO kablam! error: build failed
Aug 02 10:51:31.433 INFO kablam! su: No module specific data is present
Aug 02 10:51:32.014 INFO running `"docker" "rm" "-f" "5aca65d7773422a3a175c1ec9ea12e730e6f6be49a7800bb6244357ff04f0df8"`
Aug 02 10:51:32.181 INFO blam! 5aca65d7773422a3a175c1ec9ea12e730e6f6be49a7800bb6244357ff04f0df8