Nov 02 21:52:29.959 INFO testing echo-0.0.1 against 1.30.0 for beta-1.31-1
Nov 02 21:52:29.959 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-1/1.30.0:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.0 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 02 21:52:30.384 INFO blam! 7401d851e2e0fe893eddb5205b7aa00786184557000a7e0f38bf662f570385e6
Nov 02 21:52:30.387 INFO running `"docker" "start" "-a" "7401d851e2e0fe893eddb5205b7aa00786184557000a7e0f38bf662f570385e6"`
Nov 02 21:52:32.059 INFO kablam! usermod: no changes
Nov 02 21:52:32.123 INFO kablam!    Compiling echo v0.0.1 (/source)
Nov 02 21:52:32.891 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 21:52:32.891 INFO kablam!   --> src/lib.rs:23:1
Nov 02 21:52:32.891 INFO kablam!    |
Nov 02 21:52:32.891 INFO kablam! 23 | #![feature(macro_rules)]
Nov 02 21:52:32.891 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 21:52:32.891 INFO kablam! 
Nov 02 21:52:32.891 INFO kablam! error: aborting due to previous error
Nov 02 21:52:32.891 INFO kablam! 
Nov 02 21:52:32.891 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 21:52:32.891 INFO kablam! error: Could not compile `echo`.
Nov 02 21:52:32.891 INFO kablam! 
Nov 02 21:52:32.891 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 21:52:32.891 INFO kablam! su: No module specific data is present
Nov 02 21:52:33.551 INFO running `"docker" "rm" "-f" "7401d851e2e0fe893eddb5205b7aa00786184557000a7e0f38bf662f570385e6"`
Nov 02 21:52:33.819 INFO blam! 7401d851e2e0fe893eddb5205b7aa00786184557000a7e0f38bf662f570385e6
