Aug 11 17:58:33.528 INFO checking chainbuf-0.0.7 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 17:58:33.528 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:58:33.528 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:58:33.529 INFO running `"docker" "create" "-v" "/tmp/crater.jIKymcGUGBZc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-2/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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 +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 17:58:33.706 INFO blam! b435dc931dcc0fa920dbf5c6f92a59219212cbf491d590ba25bafbf7268be57d
Aug 11 17:58:33.710 INFO running `"docker" "start" "-a" "b435dc931dcc0fa920dbf5c6f92a59219212cbf491d590ba25bafbf7268be57d"`
Aug 11 17:58:35.031 INFO kablam!     Checking chainbuf v0.0.7 (file:///source)
Aug 11 17:58:37.234 INFO kablam! error[E0635]: unknown feature `collections`
Aug 11 17:58:37.234 INFO kablam!  --> src/lib.rs:6:12
Aug 11 17:58:37.235 INFO kablam!   |
Aug 11 17:58:37.235 INFO kablam! 6 | #![feature(collections)]
Aug 11 17:58:37.235 INFO kablam!   |            ^^^^^^^^^^^
Aug 11 17:58:37.235 INFO kablam! 
Aug 11 17:58:37.255 INFO kablam! error[E0635]: unknown feature `collections`
Aug 11 17:58:37.255 INFO kablam!  --> src/lib.rs:6:12
Aug 11 17:58:37.255 INFO kablam!   |
Aug 11 17:58:37.255 INFO kablam! 6 | #![feature(collections)]
Aug 11 17:58:37.255 INFO kablam!   |            ^^^^^^^^^^^
Aug 11 17:58:37.255 INFO kablam! 
Aug 11 17:58:37.258 INFO kablam! error: aborting due to previous error
Aug 11 17:58:37.258 INFO kablam! 
Aug 11 17:58:37.259 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 17:58:37.271 INFO kablam! error: Could not compile `chainbuf`.
Aug 11 17:58:37.272 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 17:58:37.294 INFO kablam! error: aborting due to previous error
Aug 11 17:58:37.294 INFO kablam! 
Aug 11 17:58:37.295 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 17:58:37.309 INFO kablam! error: Could not compile `chainbuf`.
Aug 11 17:58:37.309 INFO kablam! 
Aug 11 17:58:37.309 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 17:58:37.311 INFO kablam! su: No module specific data is present
Aug 11 17:58:37.934 INFO running `"docker" "rm" "-f" "b435dc931dcc0fa920dbf5c6f92a59219212cbf491d590ba25bafbf7268be57d"`
Aug 11 17:58:38.110 INFO blam! b435dc931dcc0fa920dbf5c6f92a59219212cbf491d590ba25bafbf7268be57d