Aug 18 01:53:36.637 INFO checking chainbuf-0.0.7 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 18 01:53:36.637 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 01:53:36.637 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 01:53:36.637 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-6/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 18 01:53:36.878 INFO blam! a912155c95d5083622ffb9152107eee9b5de77af189885858d369df1eef51fd3
Aug 18 01:53:36.914 INFO running `"docker" "start" "-a" "a912155c95d5083622ffb9152107eee9b5de77af189885858d369df1eef51fd3"`
Aug 18 01:53:37.893 INFO kablam!     Checking chainbuf v0.0.7 (file:///source)
Aug 18 01:53:39.397 INFO kablam! error[E0635]: unknown feature `collections`
Aug 18 01:53:39.397 INFO kablam!  --> src/lib.rs:6:12
Aug 18 01:53:39.397 INFO kablam!   |
Aug 18 01:53:39.397 INFO kablam! 6 | #![feature(collections)]
Aug 18 01:53:39.397 INFO kablam!   |            ^^^^^^^^^^^
Aug 18 01:53:39.397 INFO kablam! 
Aug 18 01:53:39.427 INFO kablam! error: aborting due to previous error
Aug 18 01:53:39.427 INFO kablam! 
Aug 18 01:53:39.428 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 01:53:39.438 INFO kablam! error: Could not compile `chainbuf`.
Aug 18 01:53:39.439 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 18 01:53:39.444 INFO kablam! error[E0635]: unknown feature `collections`
Aug 18 01:53:39.444 INFO kablam!  --> src/lib.rs:6:12
Aug 18 01:53:39.444 INFO kablam!   |
Aug 18 01:53:39.444 INFO kablam! 6 | #![feature(collections)]
Aug 18 01:53:39.445 INFO kablam!   |            ^^^^^^^^^^^
Aug 18 01:53:39.445 INFO kablam! 
Aug 18 01:53:39.468 INFO kablam! error: aborting due to previous error
Aug 18 01:53:39.468 INFO kablam! 
Aug 18 01:53:39.468 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 01:53:39.479 INFO kablam! error: Could not compile `chainbuf`.
Aug 18 01:53:39.479 INFO kablam! 
Aug 18 01:53:39.479 INFO kablam! To learn more, run the command again with --verbose.
Aug 18 01:53:39.481 INFO kablam! su: No module specific data is present
Aug 18 01:53:40.181 INFO running `"docker" "rm" "-f" "a912155c95d5083622ffb9152107eee9b5de77af189885858d369df1eef51fd3"`
Aug 18 01:53:40.357 INFO blam! a912155c95d5083622ffb9152107eee9b5de77af189885858d369df1eef51fd3