Aug 02 14:07:17.003 INFO checking bip_metainfo-0.10.0 against 1.27.2 for lazy_static-1
Aug 02 14:07:17.003 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:07:17.003 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:07:17.003 INFO running `"docker" "create" "-v" "/tmp/crater.HrSjOur1KzZG:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 02 14:07:17.266 INFO blam! 2c3dad52bbc3ae7ee464d3c97413e094e39109ea58c9d388ac0f9f1d8861fb94
Aug 02 14:07:17.268 INFO running `"docker" "start" "-a" "2c3dad52bbc3ae7ee464d3c97413e094e39109ea58c9d388ac0f9f1d8861fb94"`
Aug 02 14:07:18.124 INFO kablam! warning: `panic` setting is ignored for `bench` profile
Aug 02 14:07:18.266 INFO kablam!     Checking bip_bencode v0.3.1
Aug 02 14:07:20.095 INFO kablam!     Checking bip_metainfo v0.10.0 (file:///source)
Aug 02 14:07:25.822 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:07:25.822 INFO kablam!    --> src/metainfo.rs:340:37
Aug 02 14:07:25.822 INFO kablam!     |
Aug 02 14:07:25.822 INFO kablam! 340 |                                 let mut bencode_files_access = bencode_files.list_mut().unwrap();
Aug 02 14:07:25.822 INFO kablam!     |                                     ----^^^^^^^^^^^^^^^^^^^^
Aug 02 14:07:25.822 INFO kablam!     |                                     |
Aug 02 14:07:25.823 INFO kablam!     |                                     help: remove this `mut`
Aug 02 14:07:25.832 INFO kablam!     |
Aug 02 14:07:25.833 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 14:07:25.833 INFO kablam! 
Aug 02 14:07:25.833 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:07:25.833 INFO kablam!    --> src/metainfo.rs:340:37
Aug 02 14:07:25.833 INFO kablam!     |
Aug 02 14:07:25.833 INFO kablam! 340 |                                 let mut bencode_files_access = bencode_files.list_mut().unwrap();
Aug 02 14:07:25.833 INFO kablam!     |                                     ----^^^^^^^^^^^^^^^^^^^^
Aug 02 14:07:25.833 INFO kablam!     |                                     |
Aug 02 14:07:25.833 INFO kablam!     |                                     help: remove this `mut`
Aug 02 14:07:25.834 INFO kablam! 
Aug 02 14:07:27.500 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:07:27.500 INFO kablam!  --> benches/mod.rs:1:1
Aug 02 14:07:27.500 INFO kablam!   |
Aug 02 14:07:27.500 INFO kablam! 1 | #![feature(test)]
Aug 02 14:07:27.500 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:07:27.500 INFO kablam! 
Aug 02 14:07:27.501 INFO kablam! error: aborting due to previous error
Aug 02 14:07:27.502 INFO kablam! 
Aug 02 14:07:27.502 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:07:27.518 INFO kablam! error: Could not compile `bip_metainfo`.
Aug 02 14:07:27.519 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:07:27.889 INFO kablam! error: build failed
Aug 02 14:07:27.891 INFO kablam! su: No module specific data is present
Aug 02 14:07:28.447 INFO running `"docker" "rm" "-f" "2c3dad52bbc3ae7ee464d3c97413e094e39109ea58c9d388ac0f9f1d8861fb94"`
Aug 02 14:07:28.650 INFO blam! 2c3dad52bbc3ae7ee464d3c97413e094e39109ea58c9d388ac0f9f1d8861fb94