Sep 01 08:53:51.612 INFO checking rson_rs-0.2.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 08:53:51.612 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 08:53:51.612 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/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"`
Sep 01 08:53:51.892 INFO blam! 735e49364715602f66008559745f99715f617012dd60c8e73e9348aa6d7fc9b9
Sep 01 08:53:51.893 INFO running `"docker" "start" "-a" "735e49364715602f66008559745f99715f617012dd60c8e73e9348aa6d7fc9b9"`
Sep 01 08:53:52.699 INFO kablam!     Checking rson_rs v0.2.1 (file:///source)
Sep 01 08:53:53.636 INFO kablam! warning: unnecessary parentheses around function argument
Sep 01 08:53:53.636 INFO kablam!   --> src/de/tests.rs:76:19
Sep 01 08:53:53.636 INFO kablam!    |
Sep 01 08:53:53.636 INFO kablam! 76 |     assert_eq!(Ok(([2, 3, 4i32].to_vec())), from_str("[2,3,4,]"));
Sep 01 08:53:53.636 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 01 08:53:53.637 INFO kablam!    |
Sep 01 08:53:53.637 INFO kablam!    = note: #[warn(unused_parens)] on by default
Sep 01 08:53:53.637 INFO kablam! 
Sep 01 08:53:57.818 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.18s
Sep 01 08:53:57.833 INFO kablam! su: No module specific data is present
Sep 01 08:53:58.498 INFO running `"docker" "rm" "-f" "735e49364715602f66008559745f99715f617012dd60c8e73e9348aa6d7fc9b9"`
Sep 01 08:53:58.644 INFO blam! 735e49364715602f66008559745f99715f617012dd60c8e73e9348aa6d7fc9b9