[INFO] cloning repository https://github.com/enex/rui-azure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enex/rui-azure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenex%2Frui-azure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenex%2Frui-azure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35aad211bf96db441623d895a8f833543d59d0ec
[INFO] checking enex/rui-azure against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenex%2Frui-azure" "/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/enex/rui-azure on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/enex/rui-azure
[INFO] finished tweaking git repo https://github.com/enex/rui-azure
[INFO] tweaked toml for git repo https://github.com/enex/rui-azure written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/enex/rui-azure already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.layers.varsion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-azure`
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-layers`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.layers.varsion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c15bb6ef2c18f880b405f0a0b43c2850e5405f6ae6f0359d10a6745896685a8d
[INFO] running `Command { std: "docker" "start" "-a" "c15bb6ef2c18f880b405f0a0b43c2850e5405f6ae6f0359d10a6745896685a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c15bb6ef2c18f880b405f0a0b43c2850e5405f6ae6f0359d10a6745896685a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15bb6ef2c18f880b405f0a0b43c2850e5405f6ae6f0359d10a6745896685a8d", kill_on_drop: false }`
[INFO] [stdout] c15bb6ef2c18f880b405f0a0b43c2850e5405f6ae6f0359d10a6745896685a8d
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e21e3beee47f8aa64eca05f4b770a3373c5207e242ca69ba31e5613169ea769
[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" "4e21e3beee47f8aa64eca05f4b770a3373c5207e242ca69ba31e5613169ea769", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.layers.varsion
[INFO] [stderr] error: multiple packages link to native library `skia`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `servo-skia v0.20130412.25`
[INFO] [stderr]     ... which is depended on by `layers v0.5.3 (https://github.com/servo/rust-layers#b064de85)`
[INFO] [stderr]     ... which is depended on by `rui_azure v0.0.2 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `skia`
[INFO] [stderr] 
[INFO] [stderr] package `servo-skia v0.30000023.1`
[INFO] [stderr]     ... which is depended on by `azure v0.37.0 (https://github.com/servo/rust-azure#7c6c56fe)`
[INFO] [stderr]     ... which is depended on by `rui_azure v0.0.2 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `skia`
[INFO] running `Command { std: "docker" "inspect" "4e21e3beee47f8aa64eca05f4b770a3373c5207e242ca69ba31e5613169ea769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e21e3beee47f8aa64eca05f4b770a3373c5207e242ca69ba31e5613169ea769", kill_on_drop: false }`
[INFO] [stdout] 4e21e3beee47f8aa64eca05f4b770a3373c5207e242ca69ba31e5613169ea769