Aug 01 20:48:24.402 INFO checking tcmalloc-0.1.3 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:48:24.402 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:48:24.402 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:48:24.402 INFO running `"docker" "create" "-v" "/tmp/crater.2IbctCOit1lO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+tmplazy:/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 20:48:24.617 INFO blam! bafceb10b78ba8930223882068e2a5589f3abb4e2e844fe50b65aa3d1c739c55
Aug 01 20:48:24.619 INFO running `"docker" "start" "-a" "bafceb10b78ba8930223882068e2a5589f3abb4e2e844fe50b65aa3d1c739c55"`
Aug 01 20:48:25.484 INFO kablam!     Checking tcmalloc v0.1.3 (file:///source)
Aug 01 20:48:25.739 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:48:25.739 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:48:25.739 INFO kablam!   |
Aug 01 20:48:25.739 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 20:48:25.739 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:48:25.739 INFO kablam! 
Aug 01 20:48:25.739 INFO kablam! error: aborting due to previous error
Aug 01 20:48:25.739 INFO kablam! 
Aug 01 20:48:25.739 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:48:25.745 INFO kablam! error: Could not compile `tcmalloc`.
Aug 01 20:48:25.746 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:48:25.842 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:48:25.842 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:48:25.842 INFO kablam!   |
Aug 01 20:48:25.842 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 20:48:25.842 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:48:25.843 INFO kablam! 
Aug 01 20:48:25.843 INFO kablam! error: aborting due to previous error
Aug 01 20:48:25.843 INFO kablam! 
Aug 01 20:48:25.843 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:48:25.850 INFO kablam! error: Could not compile `tcmalloc`.
Aug 01 20:48:25.850 INFO kablam! 
Aug 01 20:48:25.850 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:48:25.852 INFO kablam! su: No module specific data is present
Aug 01 20:48:26.609 INFO running `"docker" "rm" "-f" "bafceb10b78ba8930223882068e2a5589f3abb4e2e844fe50b65aa3d1c739c55"`
Aug 01 20:48:26.730 INFO blam! bafceb10b78ba8930223882068e2a5589f3abb4e2e844fe50b65aa3d1c739c55