Aug 01 20:22:40.401 INFO checking tinyset-0.2.2 against 1.27.2 for lazy_static-1
Aug 01 20:22:40.401 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:22:40.401 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:22:40.401 INFO running `"docker" "create" "-v" "/tmp/crater.zejYbATan29I:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 20:22:40.619 INFO blam! fde3462f65fa12f1cad16961722e51a24bc4b1ccd439701a8662c508e484b0a3
Aug 01 20:22:40.621 INFO running `"docker" "start" "-a" "fde3462f65fa12f1cad16961722e51a24bc4b1ccd439701a8662c508e484b0a3"`
Aug 01 20:22:41.470 INFO kablam!     Checking tinyset v0.2.2 (file:///source)
Aug 01 20:22:44.249 INFO kablam! warning: method is never used: `insert`
Aug 01 20:22:44.249 INFO kablam!     --> src/u64set.rs:2762:5
Aug 01 20:22:44.249 INFO kablam!      |
Aug 01 20:22:44.249 INFO kablam! 2762 |     fn insert(&mut self, k: u64, v: u64) -> Option<u64> {
Aug 01 20:22:44.249 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:22:44.249 INFO kablam!      |
Aug 01 20:22:44.249 INFO kablam!      = note: #[warn(dead_code)] on by default
Aug 01 20:22:44.249 INFO kablam! 
Aug 01 20:22:45.464 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:22:45.464 INFO kablam!  --> benches/bench.rs:1:1
Aug 01 20:22:45.464 INFO kablam!   |
Aug 01 20:22:45.465 INFO kablam! 1 | #![feature(test)]
Aug 01 20:22:45.465 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:22:45.465 INFO kablam! 
Aug 01 20:22:45.466 INFO kablam! error: aborting due to previous error
Aug 01 20:22:45.480 INFO kablam! 
Aug 01 20:22:45.480 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:22:45.489 INFO kablam! error: Could not compile `tinyset`.
Aug 01 20:22:45.490 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:22:47.168 INFO kablam! error: build failed
Aug 01 20:22:47.169 INFO kablam! su: No module specific data is present
Aug 01 20:22:47.772 INFO running `"docker" "rm" "-f" "fde3462f65fa12f1cad16961722e51a24bc4b1ccd439701a8662c508e484b0a3"`
Aug 01 20:22:47.949 INFO blam! fde3462f65fa12f1cad16961722e51a24bc4b1ccd439701a8662c508e484b0a3