Aug 02 13:01:59.039 INFO checking chainbuf-0.0.7 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:01:59.039 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:59.039 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:59.039 INFO running `"docker" "create" "-v" "/tmp/crater.589Ulaww49O4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 13:01:59.194 INFO blam! 609be089a3de651ac87542c5aa1b4ce6261e0b271c82206d27db6068e933e05a
Aug 02 13:01:59.200 INFO running `"docker" "start" "-a" "609be089a3de651ac87542c5aa1b4ce6261e0b271c82206d27db6068e933e05a"`
Aug 02 13:02:00.978 INFO kablam!     Checking chainbuf v0.0.7 (file:///source)
Aug 02 13:02:01.761 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:02:01.761 INFO kablam!  --> src/lib.rs:6:1
Aug 02 13:02:01.761 INFO kablam!   |
Aug 02 13:02:01.761 INFO kablam! 6 | #![feature(collections)]
Aug 02 13:02:01.761 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:02:01.761 INFO kablam! 
Aug 02 13:02:01.765 INFO kablam! error: aborting due to previous error
Aug 02 13:02:01.765 INFO kablam! 
Aug 02 13:02:01.765 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:02:01.776 INFO kablam! error: Could not compile `chainbuf`.
Aug 02 13:02:01.776 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:02:01.798 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:02:01.798 INFO kablam!  --> src/lib.rs:6:1
Aug 02 13:02:01.798 INFO kablam!   |
Aug 02 13:02:01.798 INFO kablam! 6 | #![feature(collections)]
Aug 02 13:02:01.798 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:02:01.798 INFO kablam! 
Aug 02 13:02:01.801 INFO kablam! error: aborting due to previous error
Aug 02 13:02:01.801 INFO kablam! 
Aug 02 13:02:01.801 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:02:01.811 INFO kablam! error: Could not compile `chainbuf`.
Aug 02 13:02:01.811 INFO kablam! 
Aug 02 13:02:01.811 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 13:02:01.813 INFO kablam! su: No module specific data is present
Aug 02 13:02:02.755 INFO running `"docker" "rm" "-f" "609be089a3de651ac87542c5aa1b4ce6261e0b271c82206d27db6068e933e05a"`
Aug 02 13:02:02.891 INFO blam! 609be089a3de651ac87542c5aa1b4ce6261e0b271c82206d27db6068e933e05a