[INFO] cloning repository https://github.com/kevinmehall/webrender-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevinmehall/webrender-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmehall%2Fwebrender-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmehall%2Fwebrender-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c077ef1f15d87530a28132485783068be9c08ce
[INFO] checking kevinmehall/webrender-experiments against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmehall%2Fwebrender-experiments" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevinmehall/webrender-experiments on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevinmehall/webrender-experiments
[INFO] finished tweaking git repo https://github.com/kevinmehall/webrender-experiments
[INFO] tweaked toml for git repo https://github.com/kevinmehall/webrender-experiments written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/kevinmehall/webrender-experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/servo/webrender`
[INFO] [stderr]     Updating git repository `https://github.com/servo/webrender_traits`
[INFO] [stderr]     Updating git repository `https://github.com/servo/ipc-channel`
[INFO] [stderr]     Updating git repository `https://github.com/ecoal95/rust-offscreen-rendering-context`
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-freetype`
[INFO] [stderr]     Updating git repository `https://github.com/TyOverby/bincode`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap v0.2.3
[INFO] [stderr]   Downloaded fs2 v0.2.3
[INFO] [stderr]   Downloaded rustc-serialize v0.3.18
[INFO] [stderr]   Downloaded regex v0.1.55
[INFO] [stderr]   Downloaded dlib v0.3.0
[INFO] [stderr]   Downloaded android_glue v0.1.3
[INFO] [stderr]   Downloaded shell32-sys v0.1.1
[INFO] [stderr]   Downloaded serde v0.6.15
[INFO] [stderr]   Downloaded core-text v1.0.0
[INFO] [stderr]   Downloaded gl_generator v0.4.2
[INFO] [stderr]   Downloaded wayland-scanner v0.5.8
[INFO] [stderr]   Downloaded libloading v0.2.1
[INFO] [stderr]   Downloaded wayland-window v0.2.2
[INFO] [stderr]   Downloaded wayland-kbd v0.3.5
[INFO] [stderr]   Downloaded shared_library v0.1.4
[INFO] [stderr]   Downloaded cgl v0.1.4
[INFO] [stderr]   Downloaded fnv v1.0.2
[INFO] [stderr]   Downloaded quasi_codegen v0.7.0
[INFO] [stderr]   Downloaded heapsize v0.3.3
[INFO] [stderr]   Downloaded serde_codegen v0.6.14
[INFO] [stderr]   Downloaded core-foundation-sys v0.2.0
[INFO] [stderr]   Downloaded num v0.1.31
[INFO] [stderr]   Downloaded gleam v0.2.6
[INFO] [stderr]   Downloaded x11-dl v2.3.1
[INFO] [stderr]   Downloaded xml-rs v0.2.2
[INFO] [stderr]   Downloaded log v0.3.5
[INFO] [stderr]   Downloaded x11 v2.3.1
[INFO] [stderr]   Downloaded quasi v0.7.0
[INFO] [stderr]   Downloaded pkg-config v0.3.7
[INFO] [stderr]   Downloaded quasi_macros v0.7.0
[INFO] [stderr]   Downloaded serde_macros v0.6.14
[INFO] [stderr]   Downloaded euclid v0.6.2
[INFO] [stderr]   Downloaded khronos_api v1.0.0
[INFO] [stderr]   Downloaded app_units v0.2.3
[INFO] [stderr]   Downloaded byteorder v0.4.2
[INFO] [stderr]   Downloaded aster v0.13.1
[INFO] [stderr]   Downloaded core-graphics v0.2.1
[INFO] [stderr]   Downloaded osmesa-sys v0.0.5
[INFO] [stderr]   Downloaded objc v0.1.8
[INFO] [stderr]   Downloaded glutin v0.4.9
[INFO] [stderr]   Downloaded wayland-client v0.5.9
[INFO] [stderr]   Downloaded tempfile v1.1.3
[INFO] [stderr]   Downloaded wayland-sys v0.5.9
[INFO] [stderr]   Downloaded crossbeam v0.1.6
[INFO] [stderr]   Downloaded dwmapi-sys v0.1.0
[INFO] [stderr]   Downloaded core-foundation v0.2.0
[INFO] [stderr]   Downloaded dylib v0.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.2.5
[INFO] [stderr]   Downloaded memchr v0.1.10
[INFO] [stderr]   Downloaded heapsize_plugin v0.1.4
[INFO] [stderr]   Downloaded cocoa v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cda24b591659a1191b1b8c2d6994ac5127f5c2dbb6ccbb25c9e27f40a2f853ae
[INFO] running `Command { std: "docker" "start" "-a" "cda24b591659a1191b1b8c2d6994ac5127f5c2dbb6ccbb25c9e27f40a2f853ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cda24b591659a1191b1b8c2d6994ac5127f5c2dbb6ccbb25c9e27f40a2f853ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cda24b591659a1191b1b8c2d6994ac5127f5c2dbb6ccbb25c9e27f40a2f853ae", kill_on_drop: false }`
[INFO] [stdout] cda24b591659a1191b1b8c2d6994ac5127f5c2dbb6ccbb25c9e27f40a2f853ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66ef69b692784ebdfb7330fdb94e0a5c6e7168006b2a7be5c7e40ed7dd505a9a
[INFO] running `Command { std: "docker" "start" "-a" "66ef69b692784ebdfb7330fdb94e0a5c6e7168006b2a7be5c7e40ed7dd505a9a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.7
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]    Compiling khronos_api v1.0.0
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]    Compiling aster v0.13.1
[INFO] [stderr]     Checking rustc-serialize v0.3.18
[INFO] [stderr]    Compiling regex-syntax v0.2.5
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling serde_codegen v0.6.14
[INFO] [stderr]    Compiling libloading v0.2.1
[INFO] [stderr]    Compiling quasi v0.7.0
[INFO] [stderr]    Compiling pkg-config v0.3.7
[INFO] [stderr]    Compiling heapsize_plugin v0.1.4
[INFO] [stderr]     Checking crossbeam v0.1.6
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking fnv v1.0.2
[INFO] [stderr]    Compiling xml-rs v0.2.2
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/heapsize_plugin-0.1.4/src/lib.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(plugin_registrar, quote, plugin, box_syntax, rustc_private)]
[INFO] [stdout]    |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/heapsize_plugin-0.1.4/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.13.1/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aster`
[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] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.7.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.18/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-0.1.6/src/sync/seg_queue.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ready: unsafe { mem::transmute([0usize; SEG_SIZE]) },
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: `[usize; 32]` (2048 bits)
[INFO] [stdout]    = note: target type: `[AtomicBool; 32]` (256 bits)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0512`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "66ef69b692784ebdfb7330fdb94e0a5c6e7168006b2a7be5c7e40ed7dd505a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ef69b692784ebdfb7330fdb94e0a5c6e7168006b2a7be5c7e40ed7dd505a9a", kill_on_drop: false }`
[INFO] [stdout] 66ef69b692784ebdfb7330fdb94e0a5c6e7168006b2a7be5c7e40ed7dd505a9a