[INFO] crate webcomponent 0.3.3 is already in cache
[INFO] testing webcomponent-0.3.3 against 1.38.0 for beta-1.39-1
[INFO] extracting crate webcomponent 0.3.3 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate webcomponent 0.3.3 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate webcomponent 0.3.3
[INFO] finished tweaking crates.io crate webcomponent 0.3.3
[INFO] tweaked toml for crates.io crate webcomponent 0.3.3 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 87dfc7dee5607f40a8522f5e0724eb6118aca12d297fb122598c0e6176917504
[INFO] running `"docker" "start" "-a" "87dfc7dee5607f40a8522f5e0724eb6118aca12d297fb122598c0e6176917504"`
[INFO] [stderr]    Compiling web-dom v0.0.8
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling webcomponent v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0502]: cannot borrow `*controller` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |             (controller.processor)(controller, &tag, el);
[INFO] [stderr]    |             ----------------------^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |             immutable borrow occurs here
[INFO] [stderr]    |             immutable borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: Could not compile `webcomponent`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "87dfc7dee5607f40a8522f5e0724eb6118aca12d297fb122598c0e6176917504"`
[INFO] running `"docker" "rm" "-f" "87dfc7dee5607f40a8522f5e0724eb6118aca12d297fb122598c0e6176917504"`
[INFO] [stdout] 87dfc7dee5607f40a8522f5e0724eb6118aca12d297fb122598c0e6176917504