[INFO] fetching crate sauron-md 0.1.4...
[INFO] testing sauron-md-0.1.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate sauron-md 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sauron-md 0.1.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sauron-md 0.1.4
[INFO] finished tweaking crates.io crate sauron-md 0.1.4
[INFO] tweaked toml for crates.io crate sauron-md 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ea337347b145285c4b5169a0ca553e08c4ace61a8710b85b63c7108a7fcf45c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ea337347b145285c4b5169a0ca553e08c4ace61a8710b85b63c7108a7fcf45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ea337347b145285c4b5169a0ca553e08c4ace61a8710b85b63c7108a7fcf45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ea337347b145285c4b5169a0ca553e08c4ace61a8710b85b63c7108a7fcf45c", kill_on_drop: false }`
[INFO] [stdout] 6ea337347b145285c4b5169a0ca553e08c4ace61a8710b85b63c7108a7fcf45c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 032b884edbc0088a35a790af7992091030b73c44f36447c94c03ce93d97a34e9
[INFO] running `Command { std: "docker" "start" "-a" "032b884edbc0088a35a790af7992091030b73c44f36447c94c03ce93d97a34e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling mt-dom v0.2.2
[INFO] [stderr]    Compiling mt-dom v0.6.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.77
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling xml5ever v0.16.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.77
[INFO] [stderr]    Compiling markup5ever_rcdom v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.77
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling wasm-bindgen v0.2.77
[INFO] [stderr]    Compiling js-sys v0.3.54
[INFO] [stderr]    Compiling web-sys v0.3.54
[INFO] [stderr]    Compiling sauron-core v0.32.6
[INFO] [stderr]    Compiling sauron v0.28.2
[INFO] [stderr]    Compiling sauron-parse v0.1.8
[INFO] [stderr]    Compiling sauron-md v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/markdown.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 |                         add_child!(node);
[INFO] [stdout]    |                                    ^^^^ expected enum `sauron::mt_dom::Node`, found enum `mt_dom::node::Node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `sauron::mt_dom::Node<&str, &str, &str, AttributeValue, sauron::web_sys::Event, _>`
[INFO] [stdout]               found enum `mt_dom::node::Node<&str, &str, &str, sauron_core::html::attributes::attribute_value::AttributeValue, sauron_core::dom::events::Event, _>`
[INFO] [stdout]    = note: perhaps two different versions of crate `mt_dom` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sauron-md` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "032b884edbc0088a35a790af7992091030b73c44f36447c94c03ce93d97a34e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032b884edbc0088a35a790af7992091030b73c44f36447c94c03ce93d97a34e9", kill_on_drop: false }`
[INFO] [stdout] 032b884edbc0088a35a790af7992091030b73c44f36447c94c03ce93d97a34e9