[INFO] cloning repository https://github.com/diegodox/plotters-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diegodox/plotters-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegodox%2Fplotters-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegodox%2Fplotters-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea42122d528988ef70863a7f5baee0ec4c0238e7
[INFO] testing diegodox/plotters-demo against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegodox%2Fplotters-demo" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diegodox/plotters-demo on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/diegodox/plotters-demo
[INFO] finished tweaking git repo https://github.com/diegodox/plotters-demo
[INFO] tweaked toml for git repo https://github.com/diegodox/plotters-demo written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate git repo https://github.com/diegodox/plotters-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a06b4451011dac0e6fc3f3ebfab2edea2e0c857b6b6b3f64b4b904708df3a0a
[INFO] running `Command { std: "docker" "start" "-a" "6a06b4451011dac0e6fc3f3ebfab2edea2e0c857b6b6b3f64b4b904708df3a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a06b4451011dac0e6fc3f3ebfab2edea2e0c857b6b6b3f64b4b904708df3a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a06b4451011dac0e6fc3f3ebfab2edea2e0c857b6b6b3f64b4b904708df3a0a", kill_on_drop: false }`
[INFO] [stdout] 6a06b4451011dac0e6fc3f3ebfab2edea2e0c857b6b6b3f64b4b904708df3a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b98a8c6a618d449c1694c3967626fd7cf57e815421e12bcc3b1c5c57a8feaf5
[INFO] running `Command { std: "docker" "start" "-a" "9b98a8c6a618d449c1694c3967626fd7cf57e815421e12bcc3b1c5c57a8feaf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: multiple packages link to native library `fontconfig`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `servo-fontconfig-sys v4.0.6`
[INFO] [stderr]     ... which satisfies dependency `servo-fontconfig-sys = "^4.0.0"` (locked to 4.0.6) of package `servo-fontconfig v0.4.0`
[INFO] [stderr]     ... which satisfies dependency `servo-fontconfig = "^0.4"` (locked to 0.4.0) of package `font-kit v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `font-kit = "^0.7.0"` (locked to 0.7.1) of package `plotters v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `plotters = "^0.3.0"` (locked to 0.3.0) of package `plotters-iced-demo v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `fontconfig`
[INFO] [stderr] 
[INFO] [stderr] package `servo-fontconfig-sys v5.1.0`
[INFO] [stderr]     ... which satisfies dependency `servo-fontconfig-sys = "^5.1.0"` (locked to 5.1.0) of package `servo-fontconfig v0.5.1`
[INFO] [stderr]     ... which satisfies dependency `servo-fontconfig = "^0.5"` (locked to 0.5.1) of package `font-kit v0.10.1`
[INFO] [stderr]     ... which satisfies dependency `font-kit = "^0.10"` (locked to 0.10.1) of package `iced_graphics v0.2.0`
[INFO] [stderr]     ... which satisfies dependency `iced_graphics = "^0.2"` (locked to 0.2.0) of package `iced_wgpu v0.4.0`
[INFO] [stderr]     ... which satisfies dependency `iced_wgpu = "^0.4"` (locked to 0.4.0) of package `iced v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `iced = "^0.3.0"` (locked to 0.3.0) of package `plotters-iced-demo v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `fontconfig`
[INFO] running `Command { std: "docker" "inspect" "9b98a8c6a618d449c1694c3967626fd7cf57e815421e12bcc3b1c5c57a8feaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b98a8c6a618d449c1694c3967626fd7cf57e815421e12bcc3b1c5c57a8feaf5", kill_on_drop: false }`
[INFO] [stdout] 9b98a8c6a618d449c1694c3967626fd7cf57e815421e12bcc3b1c5c57a8feaf5