Aug 02 07:42:36.058 INFO checking graph-neighbor-matching-0.7.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 07:42:36.058 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:42:36.058 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:42:36.058 INFO running `"docker" "create" "-v" "/tmp/crater.hu63bxYw8upD:/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 02 07:42:36.310 INFO blam! 016e8cb87c5243730c3c79880cb274052f58ab355172b0bfb2491f48563ab898
Aug 02 07:42:36.312 INFO running `"docker" "start" "-a" "016e8cb87c5243730c3c79880cb274052f58ab355172b0bfb2491f48563ab898"`
Aug 02 07:42:37.795 INFO kablam!     Checking asexp v0.3.1
Aug 02 07:42:37.802 INFO kablam!     Checking ndarray v0.11.2
Aug 02 07:42:37.804 INFO kablam!     Checking closed01 v0.4.0
Aug 02 07:42:41.013 INFO kablam!     Checking graph-io-gml v0.2.0
Aug 02 07:42:54.136 INFO kablam!     Checking munkres v0.4.0
Aug 02 07:42:55.120 INFO kablam!     Checking graph-neighbor-matching v0.7.1 (file:///source)
Aug 02 07:42:56.180 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:42:56.180 INFO kablam!  --> src/lib.rs:1:19
Aug 02 07:42:56.180 INFO kablam!   |
Aug 02 07:42:56.181 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 07:42:56.181 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 07:42:56.181 INFO kablam! 
Aug 02 07:42:56.182 INFO kablam! error: aborting due to previous error
Aug 02 07:42:56.182 INFO kablam! 
Aug 02 07:42:56.182 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:42:56.190 INFO kablam! error: Could not compile `graph-neighbor-matching`.
Aug 02 07:42:56.190 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:42:56.680 INFO kablam! error: build failed
Aug 02 07:42:56.684 INFO kablam! su: No module specific data is present
Aug 02 07:42:57.265 INFO running `"docker" "rm" "-f" "016e8cb87c5243730c3c79880cb274052f58ab355172b0bfb2491f48563ab898"`
Aug 02 07:42:57.349 INFO blam! 016e8cb87c5243730c3c79880cb274052f58ab355172b0bfb2491f48563ab898