Aug 01 22:37:19.371 INFO checking serde_json-1.0.24 against 1.27.2+tmplazy for lazy_static-1
Aug 01 22:37:19.371 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:37:19.371 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:37:19.371 INFO running `"docker" "create" "-v" "/tmp/crater.SOmanfFGphzQ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 22:37:19.611 INFO blam! 43b11f3d43a5bcbe2ead08a7fb6f7f0b4e57a83de17380f0e024af2eec49cf70
Aug 01 22:37:19.613 INFO running `"docker" "start" "-a" "43b11f3d43a5bcbe2ead08a7fb6f7f0b4e57a83de17380f0e024af2eec49cf70"`
Aug 01 22:37:20.598 INFO kablam!    Compiling compiletest_rs v0.3.13
Aug 01 22:37:20.600 INFO kablam!     Checking serde_bytes v0.10.4
Aug 01 22:37:20.600 INFO kablam!     Checking serde_json v1.0.24 (file:///source)
Aug 01 22:37:26.230 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:37:26.230 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.13/src/lib.rs:13:39
Aug 01 22:37:26.230 INFO kablam!    |
Aug 01 22:37:26.230 INFO kablam! 13 | #![cfg_attr(not(feature = "norustc"), feature(rustc_private))]
Aug 01 22:37:26.230 INFO kablam!    |                                       ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 22:37:26.240 INFO kablam! 
Aug 01 22:37:26.241 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:37:26.241 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.13/src/lib.rs:14:38
Aug 01 22:37:26.241 INFO kablam!    |
Aug 01 22:37:26.241 INFO kablam! 14 | #![cfg_attr(not(feature = "stable"), feature(test))]
Aug 01 22:37:26.241 INFO kablam!    |                                      ^^^^^^^^^^^^^^
Aug 01 22:37:26.242 INFO kablam! 
Aug 01 22:37:26.242 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:37:26.242 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.13/src/lib.rs:15:38
Aug 01 22:37:26.242 INFO kablam!    |
Aug 01 22:37:26.242 INFO kablam! 15 | #![cfg_attr(not(feature = "stable"), feature(slice_rotate))]
Aug 01 22:37:26.242 INFO kablam!    |                                      ^^^^^^^^^^^^^^^^^^^^^^
Aug 01 22:37:26.243 INFO kablam! 
Aug 01 22:37:26.285 INFO kablam! error: aborting due to 3 previous errors
Aug 01 22:37:26.300 INFO kablam! 
Aug 01 22:37:26.301 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:37:26.341 INFO kablam! error: Could not compile `compiletest_rs`.
Aug 01 22:37:26.342 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 22:37:27.790 INFO kablam! error: build failed
Aug 01 22:37:27.793 INFO kablam! su: No module specific data is present
Aug 01 22:37:28.389 INFO running `"docker" "rm" "-f" "43b11f3d43a5bcbe2ead08a7fb6f7f0b4e57a83de17380f0e024af2eec49cf70"`
Aug 01 22:37:28.546 INFO blam! 43b11f3d43a5bcbe2ead08a7fb6f7f0b4e57a83de17380f0e024af2eec49cf70