Aug 02 01:51:38.141 INFO checking prometheus-0.4.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 01:51:38.141 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:51:38.141 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:51:38.141 INFO running `"docker" "create" "-v" "/tmp/crater.rft7uX1t0oPH:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 01:51:38.390 INFO blam! cb5bba09d195b13ce2c08d4241acdf4b8722d1620a5653673903516555099382
Aug 02 01:51:38.394 INFO running `"docker" "start" "-a" "cb5bba09d195b13ce2c08d4241acdf4b8722d1620a5653673903516555099382"`
Aug 02 01:51:39.503 INFO kablam!    Compiling prometheus v0.4.2 (file:///source)
Aug 02 01:51:48.111 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:51:48.112 INFO kablam!   --> benches/atomic.rs:14:1
Aug 02 01:51:48.112 INFO kablam!    |
Aug 02 01:51:48.112 INFO kablam! 14 | #![feature(test)]
Aug 02 01:51:48.112 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 01:51:48.112 INFO kablam! 
Aug 02 01:51:48.114 INFO kablam! error: aborting due to previous error
Aug 02 01:51:48.114 INFO kablam! 
Aug 02 01:51:48.114 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:51:48.166 INFO kablam! error: Could not compile `prometheus`.
Aug 02 01:51:48.167 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:51:48.464 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:51:48.464 INFO kablam!   --> benches/counter.rs:14:1
Aug 02 01:51:48.464 INFO kablam!    |
Aug 02 01:51:48.464 INFO kablam! 14 | #![feature(test)]
Aug 02 01:51:48.464 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 01:51:48.473 INFO kablam! 
Aug 02 01:51:48.474 INFO kablam! error: aborting due to previous error
Aug 02 01:51:48.474 INFO kablam! 
Aug 02 01:51:48.474 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:51:48.482 INFO kablam! error: Could not compile `prometheus`.
Aug 02 01:51:48.483 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:51:48.783 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:51:48.783 INFO kablam!   --> benches/histogram.rs:14:1
Aug 02 01:51:48.783 INFO kablam!    |
Aug 02 01:51:48.783 INFO kablam! 14 | #![feature(test)]
Aug 02 01:51:48.783 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 01:51:48.783 INFO kablam! 
Aug 02 01:51:48.784 INFO kablam! error: aborting due to previous error
Aug 02 01:51:48.784 INFO kablam! 
Aug 02 01:51:48.784 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:51:48.818 INFO kablam! error: Could not compile `prometheus`.
Aug 02 01:51:48.818 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:51:49.128 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:51:49.128 INFO kablam!   --> benches/gauge.rs:14:1
Aug 02 01:51:49.128 INFO kablam!    |
Aug 02 01:51:49.128 INFO kablam! 14 | #![feature(test)]
Aug 02 01:51:49.128 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 01:51:49.128 INFO kablam! 
Aug 02 01:51:49.129 INFO kablam! error: aborting due to previous error
Aug 02 01:51:49.129 INFO kablam! 
Aug 02 01:51:49.129 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:51:49.153 INFO kablam! error: Could not compile `prometheus`.
Aug 02 01:51:49.153 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:51:50.385 INFO kablam! error: build failed
Aug 02 01:51:50.387 INFO kablam! su: No module specific data is present
Aug 02 01:51:50.993 INFO running `"docker" "rm" "-f" "cb5bba09d195b13ce2c08d4241acdf4b8722d1620a5653673903516555099382"`
Aug 02 01:51:51.160 INFO blam! cb5bba09d195b13ce2c08d4241acdf4b8722d1620a5653673903516555099382