Aug 01 20:05:09.288 INFO checking traverse-0.0.12 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:05:09.288 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:09.288 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:09.288 INFO running `"docker" "create" "-v" "/tmp/crater.6As3YFNCyed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 20:05:09.526 INFO blam! 1b65ad1c0d589e7fe590765f11ffbea8867309a21c43b7564e03a8add3ecb614
Aug 01 20:05:09.531 INFO running `"docker" "start" "-a" "1b65ad1c0d589e7fe590765f11ffbea8867309a21c43b7564e03a8add3ecb614"`
Aug 01 20:05:10.563 INFO kablam! warning: dependency (num) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
Aug 01 20:05:10.857 INFO kablam!     Checking num-complex v0.2.0
Aug 01 20:05:10.857 INFO kablam!     Checking num-bigint v0.2.0
Aug 01 20:05:10.859 INFO kablam!     Checking num-iter v0.1.37
Aug 01 20:05:16.633 INFO kablam!     Checking num-rational v0.2.1
Aug 01 20:05:18.172 INFO kablam!     Checking num v0.2.0
Aug 01 20:05:18.474 INFO kablam!     Checking traverse v0.0.12 (file:///source)
Aug 01 20:05:20.075 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:05:20.076 INFO kablam!  --> benches/bench_slice.rs:1:1
Aug 01 20:05:20.076 INFO kablam!   |
Aug 01 20:05:20.076 INFO kablam! 1 | #![feature(test)]
Aug 01 20:05:20.076 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 20:05:20.076 INFO kablam! 
Aug 01 20:05:20.076 INFO kablam! error: aborting due to previous error
Aug 01 20:05:20.076 INFO kablam! 
Aug 01 20:05:20.076 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:05:20.084 INFO kablam! error: Could not compile `traverse`.
Aug 01 20:05:20.084 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:05:20.541 INFO kablam! error: build failed
Aug 01 20:05:20.543 INFO kablam! su: No module specific data is present
Aug 01 20:05:21.317 INFO running `"docker" "rm" "-f" "1b65ad1c0d589e7fe590765f11ffbea8867309a21c43b7564e03a8add3ecb614"`
Aug 01 20:05:21.565 INFO blam! 1b65ad1c0d589e7fe590765f11ffbea8867309a21c43b7564e03a8add3ecb614