Aug 01 20:05:50.588 INFO checking transaction-stm-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:05:50.588 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:50.588 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:50.588 INFO running `"docker" "create" "-v" "/tmp/crater.tZoNrl9wUsXX:/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 01 20:05:50.839 INFO blam! d9483864014be2113991145f86ddb3325857669055d04ba89eb564d8d0e517ad
Aug 01 20:05:50.846 INFO running `"docker" "start" "-a" "d9483864014be2113991145f86ddb3325857669055d04ba89eb564d8d0e517ad"`
Aug 01 20:05:51.942 INFO kablam!     Checking transaction v0.2.1
Aug 01 20:05:51.943 INFO kablam!     Checking stm v0.2.4
Aug 01 20:05:53.413 INFO kablam!     Checking transaction-stm v0.2.0 (file:///source)
Aug 01 20:05:54.123 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:05:54.123 INFO kablam!  --> benches/boxed_vs_branch.rs:1:1
Aug 01 20:05:54.123 INFO kablam!   |
Aug 01 20:05:54.123 INFO kablam! 1 | #![feature(test)]
Aug 01 20:05:54.123 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:05:54.123 INFO kablam! 
Aug 01 20:05:54.123 INFO kablam! error: aborting due to previous error
Aug 01 20:05:54.123 INFO kablam! 
Aug 01 20:05:54.123 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:05:54.130 INFO kablam! error: Could not compile `transaction-stm`.
Aug 01 20:05:54.130 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:05:54.391 INFO kablam! error: build failed
Aug 01 20:05:54.393 INFO kablam! su: No module specific data is present
Aug 01 20:05:55.029 INFO running `"docker" "rm" "-f" "d9483864014be2113991145f86ddb3325857669055d04ba89eb564d8d0e517ad"`
Aug 01 20:05:55.230 INFO blam! d9483864014be2113991145f86ddb3325857669055d04ba89eb564d8d0e517ad