Aug 31 20:20:46.715 INFO checking sebasmagri/rust-concurrency-patterns against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Aug 31 20:20:46.715 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Aug 31 20:20:46.715 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 20:20:46.946 INFO blam! 1ce55dfebe439ed58cabb143cac7cb5546381b48cfc325e28e52a64f327d046a
Aug 31 20:20:46.949 INFO running `"docker" "start" "-a" "1ce55dfebe439ed58cabb143cac7cb5546381b48cfc325e28e52a64f327d046a"`
Aug 31 20:20:47.699 INFO kablam!     Checking concurrency-patterns v0.1.0 (file:///source)
Aug 31 20:20:48.317 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 20:20:48.317 INFO kablam!   --> examples/04-fan-in.rs:32:5
Aug 31 20:20:48.317 INFO kablam!    |
Aug 31 20:20:48.317 INFO kablam! 32 |     consumer(Arc::new(Mutex::new(rx))).join();
Aug 31 20:20:48.317 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 20:20:48.318 INFO kablam!    |
Aug 31 20:20:48.318 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Aug 31 20:20:48.318 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 20:20:48.318 INFO kablam! 
Aug 31 20:20:48.410 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Aug 31 20:20:48.413 INFO kablam! su: No module specific data is present
Aug 31 20:20:48.823 INFO running `"docker" "rm" "-f" "1ce55dfebe439ed58cabb143cac7cb5546381b48cfc325e28e52a64f327d046a"`
Aug 31 20:20:48.952 INFO blam! 1ce55dfebe439ed58cabb143cac7cb5546381b48cfc325e28e52a64f327d046a