Aug 01 20:48:25.686 INFO checking tcmalloc-0.1.3 against 1.27.2 for lazy_static-1
Aug 01 20:48:25.686 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:48:25.686 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:48:25.686 INFO running `"docker" "create" "-v" "/tmp/crater.9aFMmkMHBeyz:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 20:48:25.864 INFO blam! 17f921a0665a9d2b3b6d8155a1c33822305680b06b41546e93b7c068993b8242
Aug 01 20:48:25.866 INFO running `"docker" "start" "-a" "17f921a0665a9d2b3b6d8155a1c33822305680b06b41546e93b7c068993b8242"`
Aug 01 20:48:26.992 INFO kablam!     Checking tcmalloc v0.1.3 (file:///source)
Aug 01 20:48:27.310 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:48:27.310 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:48:27.310 INFO kablam!   |
Aug 01 20:48:27.310 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 20:48:27.310 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:48:27.310 INFO kablam! 
Aug 01 20:48:27.310 INFO kablam! error: aborting due to previous error
Aug 01 20:48:27.310 INFO kablam! 
Aug 01 20:48:27.311 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:48:27.316 INFO kablam! error: Could not compile `tcmalloc`.
Aug 01 20:48:27.317 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:48:27.336 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:48:27.336 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:48:27.336 INFO kablam!   |
Aug 01 20:48:27.336 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 20:48:27.336 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:48:27.336 INFO kablam! 
Aug 01 20:48:27.336 INFO kablam! error: aborting due to previous error
Aug 01 20:48:27.336 INFO kablam! 
Aug 01 20:48:27.336 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:48:27.341 INFO kablam! error: Could not compile `tcmalloc`.
Aug 01 20:48:27.341 INFO kablam! 
Aug 01 20:48:27.341 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:48:27.342 INFO kablam! su: No module specific data is present
Aug 01 20:48:27.897 INFO running `"docker" "rm" "-f" "17f921a0665a9d2b3b6d8155a1c33822305680b06b41546e93b7c068993b8242"`
Aug 01 20:48:28.046 INFO blam! 17f921a0665a9d2b3b6d8155a1c33822305680b06b41546e93b7c068993b8242