Sep 10 16:10:34.442 INFO checking joker-0.0.5 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 16:10:34.442 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 16:10:34.442 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 16:10:34.583 INFO blam! ca891880be62c3eaa6313d777b63b9454d6913f0140482bf3893d4cb824d476a
Sep 10 16:10:34.585 INFO running `"docker" "start" "-a" "ca891880be62c3eaa6313d777b63b9454d6913f0140482bf3893d4cb824d476a"`
Sep 10 16:10:35.195 INFO kablam! usermod: no changes
Sep 10 16:10:35.224 INFO kablam!     Checking unjson v0.0.5
Sep 10 16:10:35.704 INFO kablam!     Checking joker v0.0.5 (file:///source)
Sep 10 16:10:36.762 INFO kablam! error[E0308]: mismatched types
Sep 10 16:10:36.762 INFO kablam!    --> src/test.rs:349:29
Sep 10 16:10:36.762 INFO kablam!     |
Sep 10 16:10:36.762 INFO kablam! 349 |                     source: format!("{:?}", Value::String(value.to_string())),
Sep 10 16:10:36.762 INFO kablam!     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `std::string::String`
Sep 10 16:10:36.762 INFO kablam!     |
Sep 10 16:10:36.762 INFO kablam!     = note: expected type `std::option::Option<std::string::String>`
Sep 10 16:10:36.762 INFO kablam!                found type `std::string::String`
Sep 10 16:10:36.762 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Sep 10 16:10:36.762 INFO kablam! help: try using a variant of the expected type
Sep 10 16:10:36.762 INFO kablam!     |
Sep 10 16:10:36.762 INFO kablam! 2   | Some(::fmt::format(<::fmt::Arguments>::new_v1_formatted(&[""],
Sep 10 16:10:36.762 INFO kablam! 3   |                                                    &match (&Value::String(value.to_string()),)
Sep 10 16:10:36.762 INFO kablam! 4   |                                                         {
Sep 10 16:10:36.762 INFO kablam! 5   |                                                         (arg0,) =>
Sep 10 16:10:36.762 INFO kablam! 6   |                                                         [<::fmt::ArgumentV1>::new(arg0,
Sep 10 16:10:36.762 INFO kablam! 7   |                                                                                   ::fmt::Debug::fmt)],
Sep 10 16:10:36.762 INFO kablam!   ...
Sep 10 16:10:36.762 INFO kablam! 
Sep 10 16:10:36.796 INFO kablam! error: aborting due to previous error
Sep 10 16:10:36.796 INFO kablam! 
Sep 10 16:10:36.796 INFO kablam! For more information about this error, try `rustc --explain E0308`.
Sep 10 16:10:36.801 INFO kablam! error: Could not compile `joker`.
Sep 10 16:10:36.801 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 16:10:36.881 INFO kablam! error: build failed
Sep 10 16:10:36.887 INFO kablam! su: No module specific data is present
Sep 10 16:10:37.365 INFO running `"docker" "rm" "-f" "ca891880be62c3eaa6313d777b63b9454d6913f0140482bf3893d4cb824d476a"`
Sep 10 16:10:37.462 INFO blam! ca891880be62c3eaa6313d777b63b9454d6913f0140482bf3893d4cb824d476a