Sep 04 05:37:25.879 INFO checking rson_rs-0.2.1 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 05:37:25.879 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 05:37:25.879 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 05:37:26.149 INFO blam! 42ac192d70879a711159d9e3669413eba3db01ceaf7f5d71f92c43858bf7d500
Sep 04 05:37:26.152 INFO running `"docker" "start" "-a" "42ac192d70879a711159d9e3669413eba3db01ceaf7f5d71f92c43858bf7d500"`
Sep 04 05:37:27.260 INFO kablam!     Checking rson_rs v0.2.1 (file:///source)
Sep 04 05:37:28.472 INFO kablam! warning: unnecessary parentheses around function argument
Sep 04 05:37:28.472 INFO kablam!   --> src/de/tests.rs:76:19
Sep 04 05:37:28.472 INFO kablam!    |
Sep 04 05:37:28.472 INFO kablam! 76 |     assert_eq!(Ok(([2, 3, 4i32].to_vec())), from_str("[2,3,4,]"));
Sep 04 05:37:28.472 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 04 05:37:28.472 INFO kablam!    |
Sep 04 05:37:28.472 INFO kablam!    = note: #[warn(unused_parens)] on by default
Sep 04 05:37:28.473 INFO kablam! 
Sep 04 05:37:32.907 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
Sep 04 05:37:32.930 INFO kablam! su: No module specific data is present
Sep 04 05:37:33.450 INFO running `"docker" "rm" "-f" "42ac192d70879a711159d9e3669413eba3db01ceaf7f5d71f92c43858bf7d500"`
Sep 04 05:37:33.610 INFO blam! 42ac192d70879a711159d9e3669413eba3db01ceaf7f5d71f92c43858bf7d500