Aug 01 21:52:21.180 INFO checking snmp-0.2.2 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:52:21.180 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:52:21.180 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:52:21.180 INFO running `"docker" "create" "-v" "/tmp/crater.22o0tSuVDojI:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 21:52:21.400 INFO blam! fc74637a3f910b5417ba3ee34793baec10883a2051160b99a42b1b8b022740c5
Aug 01 21:52:21.403 INFO running `"docker" "start" "-a" "fc74637a3f910b5417ba3ee34793baec10883a2051160b99a42b1b8b022740c5"`
Aug 01 21:52:22.373 INFO kablam!     Checking snmp v0.2.2 (file:///source)
Aug 01 21:52:24.593 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:52:24.593 INFO kablam!  --> benches/bench.rs:1:1
Aug 01 21:52:24.593 INFO kablam!   |
Aug 01 21:52:24.593 INFO kablam! 1 | #![feature(test)]
Aug 01 21:52:24.593 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 21:52:24.593 INFO kablam! 
Aug 01 21:52:24.593 INFO kablam! error: aborting due to previous error
Aug 01 21:52:24.593 INFO kablam! 
Aug 01 21:52:24.593 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:52:24.601 INFO kablam! error: Could not compile `snmp`.
Aug 01 21:52:24.601 INFO kablam! 
Aug 01 21:52:24.601 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:52:24.623 INFO kablam! su: No module specific data is present
Aug 01 21:52:25.148 INFO running `"docker" "rm" "-f" "fc74637a3f910b5417ba3ee34793baec10883a2051160b99a42b1b8b022740c5"`
Aug 01 21:52:25.309 INFO blam! fc74637a3f910b5417ba3ee34793baec10883a2051160b99a42b1b8b022740c5