Aug 01 20:55:52.747 INFO checking sysinfo-0.3.19 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:55:52.747 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:55:52.747 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:55:52.747 INFO running `"docker" "create" "-v" "/tmp/crater.FqlADSl0UZsL:/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 20:55:52.951 INFO blam! 91fcca9d40a1f332e330ca9793eb33dc0767d67548ac1da4424b4a4f94cee9d2
Aug 01 20:55:52.953 INFO running `"docker" "start" "-a" "91fcca9d40a1f332e330ca9793eb33dc0767d67548ac1da4424b4a4f94cee9d2"`
Aug 01 20:55:54.379 INFO kablam!    Compiling sysinfo v0.3.19 (file:///source)
Aug 01 20:55:56.610 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:55:56.610 INFO kablam!  --> benches/basic.rs:1:1
Aug 01 20:55:56.610 INFO kablam!   |
Aug 01 20:55:56.610 INFO kablam! 1 | #![feature(test)]
Aug 01 20:55:56.610 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:55:56.610 INFO kablam! 
Aug 01 20:55:56.610 INFO kablam! error: aborting due to previous error
Aug 01 20:55:56.610 INFO kablam! 
Aug 01 20:55:56.610 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:55:56.620 INFO kablam! error: Could not compile `sysinfo`.
Aug 01 20:55:56.620 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:55:57.017 INFO kablam! error: build failed
Aug 01 20:55:57.019 INFO kablam! su: No module specific data is present
Aug 01 20:55:57.855 INFO running `"docker" "rm" "-f" "91fcca9d40a1f332e330ca9793eb33dc0767d67548ac1da4424b4a4f94cee9d2"`
Aug 01 20:55:57.996 INFO blam! 91fcca9d40a1f332e330ca9793eb33dc0767d67548ac1da4424b4a4f94cee9d2