Aug 01 20:04:41.408 INFO checking tree_magic-0.2.0 against 1.27.2 for lazy_static-1
Aug 01 20:04:41.408 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:41.408 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:41.409 INFO running `"docker" "create" "-v" "/tmp/crater.j0hkkhqdFvpS:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 20:04:41.622 INFO blam! ac0d24978867bbea9bda645aefc18763449757ceb91291322d19a6e5c77d3308
Aug 01 20:04:41.624 INFO running `"docker" "start" "-a" "ac0d24978867bbea9bda645aefc18763449757ceb91291322d19a6e5c77d3308"`
Aug 01 20:04:42.946 INFO kablam!     Checking tree_magic v0.2.0 (file:///source)
Aug 01 20:04:45.332 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:04:45.332 INFO kablam!  --> benches/from_u8.rs:1:1
Aug 01 20:04:45.332 INFO kablam!   |
Aug 01 20:04:45.332 INFO kablam! 1 | #![feature(test)]
Aug 01 20:04:45.332 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:04:45.332 INFO kablam! 
Aug 01 20:04:45.332 INFO kablam! error: aborting due to previous error
Aug 01 20:04:45.332 INFO kablam! 
Aug 01 20:04:45.332 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:04:45.340 INFO kablam! error: Could not compile `tree_magic`.
Aug 01 20:04:45.340 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:04:45.709 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:04:45.709 INFO kablam!  --> benches/match_u8.rs:1:1
Aug 01 20:04:45.710 INFO kablam!   |
Aug 01 20:04:45.710 INFO kablam! 1 | #![feature(test)]
Aug 01 20:04:45.710 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:04:45.710 INFO kablam! 
Aug 01 20:04:45.710 INFO kablam! error: aborting due to previous error
Aug 01 20:04:45.710 INFO kablam! 
Aug 01 20:04:45.710 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:04:45.715 INFO kablam! error: Could not compile `tree_magic`.
Aug 01 20:04:45.715 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:04:45.766 INFO kablam! error: build failed
Aug 01 20:04:45.771 INFO kablam! su: No module specific data is present
Aug 01 20:04:46.658 INFO running `"docker" "rm" "-f" "ac0d24978867bbea9bda645aefc18763449757ceb91291322d19a6e5c77d3308"`
Aug 01 20:04:46.828 INFO blam! ac0d24978867bbea9bda645aefc18763449757ceb91291322d19a6e5c77d3308