[INFO] updating cached repository web-dom/webcomponent
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/web-dom/webcomponent
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/web-dom/webcomponent" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/web-dom/webcomponent"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/web-dom/webcomponent'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/web-dom/webcomponent" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/web-dom/webcomponent"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/web-dom/webcomponent'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b8acde96bdf6d34812e3051313fa0980f674bbb
[INFO] sha for GitHub repo web-dom/webcomponent: 7b8acde96bdf6d34812e3051313fa0980f674bbb
[INFO] validating manifest of web-dom/webcomponent on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of web-dom/webcomponent on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing web-dom/webcomponent
[INFO] finished frobbing web-dom/webcomponent
[INFO] frobbed toml for web-dom/webcomponent written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/web-dom/webcomponent/Cargo.toml
[INFO] started frobbing web-dom/webcomponent
[INFO] finished frobbing web-dom/webcomponent
[INFO] frobbed toml for web-dom/webcomponent written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/web-dom/webcomponent/Cargo.toml
[INFO] crate web-dom/webcomponent already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking web-dom/webcomponent against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/web-dom/webcomponent:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0382c4878e258727b561c943b96837e87ff2d714240e802e1ed630b1e622127a
[INFO] running `"docker" "start" "-a" "0382c4878e258727b561c943b96837e87ff2d714240e802e1ed630b1e622127a"`
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking web-dom v0.0.8
[INFO] [stderr]     Checking webcomponent v0.3.3 (/opt/crater/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[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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0382c4878e258727b561c943b96837e87ff2d714240e802e1ed630b1e622127a"`
[INFO] running `"docker" "rm" "-f" "0382c4878e258727b561c943b96837e87ff2d714240e802e1ed630b1e622127a"`
[INFO] [stdout] 0382c4878e258727b561c943b96837e87ff2d714240e802e1ed630b1e622127a