Aug 02 06:15:57.055 INFO checking json-0.11.13 against 1.27.2 for lazy_static-1
Aug 02 06:15:57.055 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:15:57.055 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:15:57.055 INFO running `"docker" "create" "-v" "/tmp/crater.DvulvOhuA5wa:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 06:15:57.396 INFO blam! 8ef55a81864605c618cbeb79e0838e12d6df3ab73d21f7f8734b7b24e83328ef
Aug 02 06:15:57.398 INFO running `"docker" "start" "-a" "8ef55a81864605c618cbeb79e0838e12d6df3ab73d21f7f8734b7b24e83328ef"`
Aug 02 06:15:58.332 INFO kablam!     Checking json v0.11.13 (file:///source)
Aug 02 06:15:59.342 INFO kablam! warning: unnecessary parentheses around function argument
Aug 02 06:15:59.342 INFO kablam!    --> src/parser.rs:634:61
Aug 02 06:15:59.342 INFO kablam!     |
Aug 02 06:15:59.342 INFO kablam! 634 |         Ok(unsafe { Number::from_parts_unchecked(true, num, (big_e.saturating_add(e * sign))) })
Aug 02 06:15:59.342 INFO kablam!     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Aug 02 06:15:59.342 INFO kablam!     |
Aug 02 06:15:59.342 INFO kablam!     = note: #[warn(unused_parens)] on by default
Aug 02 06:15:59.342 INFO kablam! 
Aug 02 06:15:59.543 INFO kablam! warning: unnecessary parentheses around function argument
Aug 02 06:15:59.543 INFO kablam!    --> src/parser.rs:634:61
Aug 02 06:15:59.543 INFO kablam!     |
Aug 02 06:15:59.543 INFO kablam! 634 |         Ok(unsafe { Number::from_parts_unchecked(true, num, (big_e.saturating_add(e * sign))) })
Aug 02 06:15:59.543 INFO kablam!     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Aug 02 06:15:59.558 INFO kablam!     |
Aug 02 06:15:59.558 INFO kablam!     = note: #[warn(unused_parens)] on by default
Aug 02 06:15:59.558 INFO kablam! 
Aug 02 06:16:02.985 INFO kablam! warning: unused `#[macro_use]` import
Aug 02 06:16:02.985 INFO kablam!  --> tests/json_checker.rs:1:1
Aug 02 06:16:02.985 INFO kablam!   |
Aug 02 06:16:02.985 INFO kablam! 1 | #[macro_use]
Aug 02 06:16:02.985 INFO kablam!   | ^^^^^^^^^^^^
Aug 02 06:16:02.985 INFO kablam!   |
Aug 02 06:16:02.985 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 06:16:02.985 INFO kablam! 
Aug 02 06:16:03.839 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:16:03.839 INFO kablam!  --> benches/log.rs:3:1
Aug 02 06:16:03.839 INFO kablam!   |
Aug 02 06:16:03.839 INFO kablam! 3 | #![feature(test)]
Aug 02 06:16:03.840 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 06:16:03.840 INFO kablam! 
Aug 02 06:16:03.841 INFO kablam! error: aborting due to previous error
Aug 02 06:16:03.841 INFO kablam! 
Aug 02 06:16:03.841 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:16:03.849 INFO kablam! error: Could not compile `json`.
Aug 02 06:16:03.850 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 06:16:04.126 INFO kablam! warning: unused `#[macro_use]` import
Aug 02 06:16:04.126 INFO kablam!  --> tests/number.rs:1:1
Aug 02 06:16:04.126 INFO kablam!   |
Aug 02 06:16:04.126 INFO kablam! 1 | #[macro_use]
Aug 02 06:16:04.126 INFO kablam!   | ^^^^^^^^^^^^
Aug 02 06:16:04.127 INFO kablam!   |
Aug 02 06:16:04.127 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 06:16:04.128 INFO kablam! 
Aug 02 06:16:06.362 INFO kablam! error: build failed
Aug 02 06:16:06.364 INFO kablam! su: No module specific data is present
Aug 02 06:16:06.995 INFO running `"docker" "rm" "-f" "8ef55a81864605c618cbeb79e0838e12d6df3ab73d21f7f8734b7b24e83328ef"`
Aug 02 06:16:07.155 INFO blam! 8ef55a81864605c618cbeb79e0838e12d6df3ab73d21f7f8734b7b24e83328ef