[INFO] cloning repository https://github.com/Francesco149/servo-embedding-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Francesco149/servo-embedding-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancesco149%2Fservo-embedding-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancesco149%2Fservo-embedding-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ea6d425475211031d99d788b73b0fcf97156643
[INFO] checking Francesco149/servo-embedding-example against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancesco149%2Fservo-embedding-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Francesco149/servo-embedding-example on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Francesco149/servo-embedding-example
[INFO] finished tweaking git repo https://github.com/Francesco149/servo-embedding-example
[INFO] tweaked toml for git repo https://github.com/Francesco149/servo-embedding-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Francesco149/servo-embedding-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gstreamer-app v0.13.0
[INFO] [stderr]   Downloaded utf-8 v0.7.1
[INFO] [stderr]   Downloaded malloc_size_of_derive v0.1.0
[INFO] [stderr]   Downloaded dwrote v0.8.0
[INFO] [stderr]   Downloaded arrayvec v0.4.6
[INFO] [stderr]   Downloaded markup5ever v0.7.5
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e99d6ee4afc8e6fa1ecb1979d516aed84a713609c3e009cef70f514f90adb890
[INFO] running `Command { std: "docker" "start" "-a" "e99d6ee4afc8e6fa1ecb1979d516aed84a713609c3e009cef70f514f90adb890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e99d6ee4afc8e6fa1ecb1979d516aed84a713609c3e009cef70f514f90adb890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e99d6ee4afc8e6fa1ecb1979d516aed84a713609c3e009cef70f514f90adb890", kill_on_drop: false }`
[INFO] [stdout] e99d6ee4afc8e6fa1ecb1979d516aed84a713609c3e009cef70f514f90adb890
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 524019dad0c9ac8211f9a3c02846674394a9367d69009c26756c4e663fb54fe5
[INFO] running `Command { std: "docker" "start" "-a" "524019dad0c9ac8211f9a3c02846674394a9367d69009c26756c4e663fb54fe5", 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] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]     Checking matches v0.1.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling bindgen v0.49.0
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.12
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking smallbitvec v2.3.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking safe-transmute v0.10.1
[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 gstreamer v0.13.0
[INFO] [stderr]     Checking muldiv v0.2.0
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking atomic_refcell v0.1.0
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling gstreamer-base v0.13.0
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking boxfnonce v0.1.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking byte-slice-cast v0.2.0
[INFO] [stderr]    Compiling gstreamer-video v0.13.0
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling gstreamer-sdp v0.13.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking ucd v0.1.1
[INFO] [stderr]     Checking binary-space-partition v0.1.2
[INFO] [stderr]    Compiling gstreamer-app v0.13.0
[INFO] [stderr]    Compiling hyper-openssl v0.7.1
[INFO] [stderr]    Compiling gstreamer-audio v0.13.0
[INFO] [stderr]    Compiling gstreamer-gl v0.13.0
[INFO] [stderr]    Compiling gstreamer-webrtc v0.13.0
[INFO] [stderr]     Checking thread_profiler v0.1.3
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]    Compiling gstreamer-player v0.13.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking xdg v2.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking threadpool v1.3.2
[INFO] [stderr]     Checking swapper v0.1.0
[INFO] [stderr]     Checking mitochondria v1.1.2
[INFO] [stderr]    Compiling script_plugins v0.0.1 (https://github.com/servo/servo?rev=328244684a8b1f98d515d5f40655b9cf7347affd#32824468)
[INFO] [stderr]     Checking ref_slice v1.1.1
[INFO] [stderr]     Checking ref_filter_map v1.0.1
[INFO] [stderr]     Checking half v1.0.0
[INFO] [stderr]     Checking histogram v0.6.8
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/3282446/components/script_plugins/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `script_plugins`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "524019dad0c9ac8211f9a3c02846674394a9367d69009c26756c4e663fb54fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524019dad0c9ac8211f9a3c02846674394a9367d69009c26756c4e663fb54fe5", kill_on_drop: false }`
[INFO] [stdout] 524019dad0c9ac8211f9a3c02846674394a9367d69009c26756c4e663fb54fe5