Aug 02 09:26:09.903 INFO checking gc-0.3.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 09:26:09.903 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:26:09.903 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:26:09.903 INFO running `"docker" "create" "-v" "/tmp/crater.r2zIqdmhGi60:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 02 09:26:10.082 INFO blam! 64dd625d7d1a17debb47ac151452085348101fcc464a2e85490b090f28a11c22
Aug 02 09:26:10.087 INFO running `"docker" "start" "-a" "64dd625d7d1a17debb47ac151452085348101fcc464a2e85490b090f28a11c22"`
Aug 02 09:26:10.990 INFO kablam!     Blocking waiting for file lock on the git checkouts
Aug 02 09:26:11.161 INFO kablam!     Checking gc v0.3.2 (file:///source)
Aug 02 09:26:11.162 INFO kablam!    Compiling gc_derive v0.3.2
Aug 02 09:26:16.157 INFO kablam! warning: unnecessary `unsafe` block
Aug 02 09:26:16.157 INFO kablam!    --> src/lib.rs:396:9
Aug 02 09:26:16.157 INFO kablam!     |
Aug 02 09:26:16.157 INFO kablam! 396 |         unsafe { self.cell.into_inner() }
Aug 02 09:26:16.157 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 02 09:26:16.157 INFO kablam!     |
Aug 02 09:26:16.157 INFO kablam!     = note: #[warn(unused_unsafe)] on by default
Aug 02 09:26:16.157 INFO kablam! 
Aug 02 09:26:17.495 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:26:17.495 INFO kablam!  --> benches/alloc_in_a_loop.rs:1:1
Aug 02 09:26:17.495 INFO kablam!   |
Aug 02 09:26:17.495 INFO kablam! 1 | #![feature(test)]
Aug 02 09:26:17.495 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 09:26:17.495 INFO kablam! 
Aug 02 09:26:17.495 INFO kablam! error: aborting due to previous error
Aug 02 09:26:17.496 INFO kablam! 
Aug 02 09:26:17.496 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:26:17.503 INFO kablam! error: Could not compile `gc`.
Aug 02 09:26:17.503 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:26:21.686 INFO kablam! warning: unnecessary `unsafe` block
Aug 02 09:26:21.686 INFO kablam!    --> src/lib.rs:396:9
Aug 02 09:26:21.686 INFO kablam!     |
Aug 02 09:26:21.686 INFO kablam! 396 |         unsafe { self.cell.into_inner() }
Aug 02 09:26:21.686 INFO kablam!     |         ^^^^^^ unnecessary `unsafe` block
Aug 02 09:26:21.686 INFO kablam!     |
Aug 02 09:26:21.686 INFO kablam!     = note: #[warn(unused_unsafe)] on by default
Aug 02 09:26:21.686 INFO kablam! 
Aug 02 09:26:21.963 INFO kablam! error: build failed
Aug 02 09:26:21.964 INFO kablam! su: No module specific data is present
Aug 02 09:26:22.505 INFO running `"docker" "rm" "-f" "64dd625d7d1a17debb47ac151452085348101fcc464a2e85490b090f28a11c22"`
Aug 02 09:26:22.665 INFO blam! 64dd625d7d1a17debb47ac151452085348101fcc464a2e85490b090f28a11c22