[INFO] updating cached repository https://github.com/antoyo/servo-gtk
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ddddfe8d5de7f3b167bd9378021ab76166282d6
[INFO] checking antoyo/servo-gtk against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoyo%2Fservo-gtk" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antoyo/servo-gtk on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/antoyo/servo-gtk
[INFO] finished tweaking git repo https://github.com/antoyo/servo-gtk
[INFO] tweaked toml for git repo https://github.com/antoyo/servo-gtk written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/antoyo/servo-gtk already has a lockfile, it will not be regenerated
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 3ad599b061536c663279a76b8c7d8f7e3be8f77e6cd662cea93d8c06c8d7e493
[INFO] running `"docker" "start" "-a" "3ad599b061536c663279a76b8c7d8f7e3be8f77e6cd662cea93d8c06c8d7e493"`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling bindgen v0.39.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling khronos_api v2.1.0
[INFO] [stderr]     Checking smallbitvec v2.1.1
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking signpost v0.1.0 (https://github.com/pcwalton/signpost.git#7ed71250)
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]    Compiling gstreamer v0.12.0
[INFO] [stderr]     Checking muldiv v0.2.0
[INFO] [stderr]    Compiling gstreamer-base v0.12.0
[INFO] [stderr]     Checking atomic_refcell v0.1.0
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling gstreamer-video v0.12.0
[INFO] [stderr]    Compiling gstreamer-audio v0.12.0
[INFO] [stderr]    Compiling gstreamer-player v0.12.0
[INFO] [stderr]    Compiling gstreamer-app v0.12.0
[INFO] [stderr]     Checking ucd v0.1.1
[INFO] [stderr]    Compiling webrender v0.57.2 (https://github.com/servo/webrender#790b76f1)
[INFO] [stderr]     Checking byte-slice-cast v0.2.0
[INFO] [stderr]     Checking binary-space-partition v0.1.2
[INFO] [stderr]     Checking boxfnonce v0.1.0
[INFO] [stderr]     Checking alloc-no-stdlib v1.3.0
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]     Checking thread_profiler v0.1.3
[INFO] [stderr]    Compiling hyper-openssl v0.6.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]     Checking swapper v0.1.0
[INFO] [stderr]    Compiling gdk v0.9.0
[INFO] [stderr]     Checking mitochondria v1.1.2
[INFO] [stderr]     Checking ref_slice v1.1.1
[INFO] [stderr]    Compiling script_plugins v0.0.1 (https://github.com/servo/servo?rev=a2937d948818665ecda16a06fe6c8fa751d265fd#a2937d94)
[INFO] [stderr]     Checking threadpool v1.3.2
[INFO] [stderr]     Checking ref_filter_map v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking half v1.0.0
[INFO] [stderr]    Compiling gtk v0.5.0
[INFO] [stderr]     Checking histogram v0.6.8
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr] error[E0463]: can't find crate for `rustc`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/a2937d9/components/script_plugins/lib.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | extern crate rustc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr] error: could not compile `script_plugins`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3ad599b061536c663279a76b8c7d8f7e3be8f77e6cd662cea93d8c06c8d7e493"`
[INFO] running `"docker" "rm" "-f" "3ad599b061536c663279a76b8c7d8f7e3be8f77e6cd662cea93d8c06c8d7e493"`
[INFO] [stdout] 3ad599b061536c663279a76b8c7d8f7e3be8f77e6cd662cea93d8c06c8d7e493