Aug 02 05:52:16.134 INFO checking lamport_signature-0.1.4 against 1.27.2+tmplazy for lazy_static-1
Aug 02 05:52:16.134 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:52:16.134 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:52:16.134 INFO running `"docker" "create" "-v" "/tmp/crater.clWJ8ANJ9iHo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 05:52:16.470 INFO blam! 05be8022a2a5704edd33b3923d306639c6f006edb7f00cde861032a9560aebfb
Aug 02 05:52:16.473 INFO running `"docker" "start" "-a" "05be8022a2a5704edd33b3923d306639c6f006edb7f00cde861032a9560aebfb"`
Aug 02 05:52:17.856 INFO kablam!     Checking whirlpool v0.7.1
Aug 02 05:52:17.858 INFO kablam!     Checking groestl v0.7.0
Aug 02 05:52:17.865 INFO kablam!     Checking lamport_signature v0.1.4 (file:///source)
Aug 02 05:52:18.854 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:52:18.854 INFO kablam!   --> src/lib.rs:21:1
Aug 02 05:52:18.854 INFO kablam!    |
Aug 02 05:52:18.854 INFO kablam! 21 | #![feature(test, iterator_flatten)]
Aug 02 05:52:18.854 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:52:18.855 INFO kablam! 
Aug 02 05:52:18.857 INFO kablam! error: aborting due to previous error
Aug 02 05:52:18.857 INFO kablam! 
Aug 02 05:52:18.858 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:52:18.878 INFO kablam! error: Could not compile `lamport_signature`.
Aug 02 05:52:18.879 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:52:20.047 INFO kablam! error: build failed
Aug 02 05:52:20.049 INFO kablam! su: No module specific data is present
Aug 02 05:52:20.627 INFO running `"docker" "rm" "-f" "05be8022a2a5704edd33b3923d306639c6f006edb7f00cde861032a9560aebfb"`
Aug 02 05:52:20.935 INFO blam! 05be8022a2a5704edd33b3923d306639c6f006edb7f00cde861032a9560aebfb