Aug 02 00:16:10.730 INFO checking rowcol-0.3.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 00:16:10.730 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:16:10.730 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:16:10.730 INFO running `"docker" "create" "-v" "/tmp/crater.qDLkFYfYalp6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 00:16:11.080 INFO blam! 0ddcdc775cefc45f024c923557f38c19edff88ff7008451fc5bbeebe31d5f41a
Aug 02 00:16:11.081 INFO running `"docker" "start" "-a" "0ddcdc775cefc45f024c923557f38c19edff88ff7008451fc5bbeebe31d5f41a"`
Aug 02 00:16:12.306 INFO kablam!     Checking rowcol v0.3.3 (file:///source)
Aug 02 00:16:13.452 INFO kablam! warning: unused `#[macro_use]` import
Aug 02 00:16:13.452 INFO kablam!   --> src/lib.rs:41:1
Aug 02 00:16:13.452 INFO kablam!    |
Aug 02 00:16:13.453 INFO kablam! 41 | #[macro_use] extern crate approx;
Aug 02 00:16:13.453 INFO kablam!    | ^^^^^^^^^^^^
Aug 02 00:16:13.468 INFO kablam!    |
Aug 02 00:16:13.469 INFO kablam!    = note: #[warn(unused_imports)] on by default
Aug 02 00:16:13.469 INFO kablam! 
Aug 02 00:16:19.095 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 00:16:19.095 INFO kablam!  --> benches/matrix.rs:1:1
Aug 02 00:16:19.095 INFO kablam!   |
Aug 02 00:16:19.096 INFO kablam! 1 | #![feature(test)]
Aug 02 00:16:19.096 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 00:16:19.096 INFO kablam! 
Aug 02 00:16:19.096 INFO kablam! error: aborting due to previous error
Aug 02 00:16:19.096 INFO kablam! 
Aug 02 00:16:19.096 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 00:16:19.125 INFO kablam! error: Could not compile `rowcol`.
Aug 02 00:16:19.125 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 00:16:20.296 INFO kablam! error: build failed
Aug 02 00:16:20.298 INFO kablam! su: No module specific data is present
Aug 02 00:16:20.832 INFO running `"docker" "rm" "-f" "0ddcdc775cefc45f024c923557f38c19edff88ff7008451fc5bbeebe31d5f41a"`
Aug 02 00:16:20.985 INFO blam! 0ddcdc775cefc45f024c923557f38c19edff88ff7008451fc5bbeebe31d5f41a