[INFO] crate html5ever_dom_sink 0.2.0 is already in cache
[INFO] checking html5ever_dom_sink-0.2.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate html5ever_dom_sink 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate html5ever_dom_sink 0.2.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate html5ever_dom_sink 0.2.0
[INFO] removed path dependency html5ever from crates.io crate html5ever_dom_sink 0.2.0
[INFO] removed path dependency html5ever_test_util from crates.io crate html5ever_dom_sink 0.2.0
[INFO] finished tweaking crates.io crate html5ever_dom_sink 0.2.0
[INFO] tweaked toml for crates.io crate html5ever_dom_sink 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9de501280435c515b1cddfbe783c0f504315edb7a2a4906f5a079aa52b07688
[INFO] running `"docker" "start" "-a" "a9de501280435c515b1cddfbe783c0f504315edb7a2a4906f5a079aa52b07688"`
[INFO] [stderr]     Checking rc v0.1.1
[INFO] [stderr]    Compiling mac v0.0.2
[INFO] [stderr]     Checking html5ever_test_util v0.1.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking tendril v0.1.6
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]    Compiling string_cache v0.2.29
[INFO] [stderr]    Compiling string_cache_shared v0.1.12
[INFO] [stderr]    Compiling html5ever v0.2.11
[INFO] [stderr]    Compiling debug_unreachable v0.0.6
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling string_cache_plugin v0.1.10
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/string_cache_plugin-0.1.10/src/lib.rs:13:30
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(plugin_registrar, quote, box_syntax)]
[INFO] [stderr]    |                              ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/string_cache_plugin-0.1.10/src/lib.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | extern crate syntax;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `string_cache_plugin`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a9de501280435c515b1cddfbe783c0f504315edb7a2a4906f5a079aa52b07688"`
[INFO] running `"docker" "rm" "-f" "a9de501280435c515b1cddfbe783c0f504315edb7a2a4906f5a079aa52b07688"`
[INFO] [stdout] a9de501280435c515b1cddfbe783c0f504315edb7a2a4906f5a079aa52b07688