[INFO] fetching crate skia 0.1.0...
[INFO] testing skia-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate skia 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate skia 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skia 0.1.0
[INFO] finished tweaking crates.io crate skia 0.1.0
[INFO] tweaked toml for crates.io crate skia 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gl_generator v0.4.2
[INFO] [stderr]   Downloaded osmesa-sys v0.0.5
[INFO] [stderr]   Downloaded dylib v0.0.1
[INFO] [stderr]   Downloaded leak v0.1.2
[INFO] [stderr]   Downloaded skia-sys v0.20130412.3
[INFO] [stderr]   Downloaded glx v0.1.2
[INFO] [stderr]   Downloaded io-surface v0.1.3
[INFO] [stderr]   Downloaded gleam v0.1.20
[INFO] [stderr]   Downloaded servo-fontconfig v0.2.1
[INFO] [stderr]   Downloaded euclid v0.4.0
[INFO] [stderr]   Downloaded cocoa v0.4.4
[INFO] [stderr]   Downloaded x11-dl v2.4.0
[INFO] [stderr]   Downloaded leaky-cow v0.1.1
[INFO] [stderr]   Downloaded servo-egl v0.2.1
[INFO] [stderr]   Downloaded servo-glutin v0.4.26
[INFO] [stderr]   Downloaded servo-freetype-sys v2.4.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f00c9ad6c54c15a41e9efbdbe5f0e7293c000d13b17cfa737d07531fda066206
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f00c9ad6c54c15a41e9efbdbe5f0e7293c000d13b17cfa737d07531fda066206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f00c9ad6c54c15a41e9efbdbe5f0e7293c000d13b17cfa737d07531fda066206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00c9ad6c54c15a41e9efbdbe5f0e7293c000d13b17cfa737d07531fda066206", kill_on_drop: false }`
[INFO] [stdout] f00c9ad6c54c15a41e9efbdbe5f0e7293c000d13b17cfa737d07531fda066206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0028a15149876fb30480f92fa04969c1ddf994742cddcf75e0bb23841cbc4bc7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0028a15149876fb30480f92fa04969c1ddf994742cddcf75e0bb23841cbc4bc7", kill_on_drop: false }`
[INFO] [stderr] error: multiple packages link to native library `freetype`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `servo-freetype-sys v2.4.11`
[INFO] [stderr]     ... which is depended on by `skia v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `freetype`
[INFO] [stderr] 
[INFO] [stderr] package `servo-freetype-sys v4.0.5`
[INFO] [stderr]     ... which is depended on by `servo-fontconfig-sys v4.0.9`
[INFO] [stderr]     ... which is depended on by `servo-fontconfig v0.2.1`
[INFO] [stderr]     ... which is depended on by `skia v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `freetype`
[INFO] running `Command { std: "docker" "inspect" "0028a15149876fb30480f92fa04969c1ddf994742cddcf75e0bb23841cbc4bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0028a15149876fb30480f92fa04969c1ddf994742cddcf75e0bb23841cbc4bc7", kill_on_drop: false }`
[INFO] [stdout] 0028a15149876fb30480f92fa04969c1ddf994742cddcf75e0bb23841cbc4bc7