Aug 02 07:42:36.550 INFO checking graph-neighbor-matching-0.7.1 against 1.27.2 for lazy_static-1
Aug 02 07:42:36.550 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:42:36.550 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:42:36.550 INFO running `"docker" "create" "-v" "/tmp/crater.w1RqHndtnEMd:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 07:42:36.866 INFO blam! 9dae359677aa842a1cd930b8b7095124a2e759b0bc9f84d0dd91b7e1c4916e57
Aug 02 07:42:36.868 INFO running `"docker" "start" "-a" "9dae359677aa842a1cd930b8b7095124a2e759b0bc9f84d0dd91b7e1c4916e57"`
Aug 02 07:42:38.108 INFO kablam!     Checking asexp v0.3.1
Aug 02 07:42:38.109 INFO kablam!     Checking ndarray v0.11.2
Aug 02 07:42:38.110 INFO kablam!     Checking closed01 v0.4.0
Aug 02 07:42:40.785 INFO kablam!     Checking graph-io-gml v0.2.0
Aug 02 07:42:54.888 INFO kablam!     Checking munkres v0.4.0
Aug 02 07:42:55.672 INFO kablam!     Checking graph-neighbor-matching v0.7.1 (file:///source)
Aug 02 07:42:56.783 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:42:56.783 INFO kablam!  --> src/lib.rs:1:19
Aug 02 07:42:56.783 INFO kablam!   |
Aug 02 07:42:56.783 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 07:42:56.783 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 07:42:56.783 INFO kablam! 
Aug 02 07:42:56.791 INFO kablam! error: aborting due to previous error
Aug 02 07:42:56.796 INFO kablam! 
Aug 02 07:42:56.796 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:42:56.804 INFO kablam! error: Could not compile `graph-neighbor-matching`.
Aug 02 07:42:56.804 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:42:57.060 INFO kablam! error: build failed
Aug 02 07:42:57.060 INFO kablam! su: No module specific data is present
Aug 02 07:42:57.886 INFO running `"docker" "rm" "-f" "9dae359677aa842a1cd930b8b7095124a2e759b0bc9f84d0dd91b7e1c4916e57"`
Aug 02 07:42:58.002 INFO blam! 9dae359677aa842a1cd930b8b7095124a2e759b0bc9f84d0dd91b7e1c4916e57