[INFO] fetching crate plotters-font-loader 0.8.2...
[INFO] testing plotters-font-loader-0.8.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate plotters-font-loader 0.8.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate plotters-font-loader 0.8.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plotters-font-loader 0.8.2
[INFO] finished tweaking crates.io crate plotters-font-loader 0.8.2
[INFO] tweaked toml for crates.io crate plotters-font-loader 0.8.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate plotters-font-loader 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b56c150302160599908d62671e19e36a2b0db10fc69905b8d0df8d31db3c047
[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" "9b56c150302160599908d62671e19e36a2b0db10fc69905b8d0df8d31db3c047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b56c150302160599908d62671e19e36a2b0db10fc69905b8d0df8d31db3c047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b56c150302160599908d62671e19e36a2b0db10fc69905b8d0df8d31db3c047", kill_on_drop: false }`
[INFO] [stdout] 9b56c150302160599908d62671e19e36a2b0db10fc69905b8d0df8d31db3c047
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dd740127a553da7637f2e5c7958911447efbc8b5d6bc53b2265e76e6d676ae1
[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" "1dd740127a553da7637f2e5c7958911447efbc8b5d6bc53b2265e76e6d676ae1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling plotters-font-loader v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.61s
[INFO] running `Command { std: "docker" "inspect" "1dd740127a553da7637f2e5c7958911447efbc8b5d6bc53b2265e76e6d676ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd740127a553da7637f2e5c7958911447efbc8b5d6bc53b2265e76e6d676ae1", kill_on_drop: false }`
[INFO] [stdout] 1dd740127a553da7637f2e5c7958911447efbc8b5d6bc53b2265e76e6d676ae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ffa023a4a8f7e58e15a225a52e1fbaad1c11114838bd47d20e31560c24ff6f
[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" "35ffa023a4a8f7e58e15a225a52e1fbaad1c11114838bd47d20e31560c24ff6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling plotters-font-loader v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `font_loader`
[INFO] [stdout]   --> examples/list-fonts.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate font_loader as fonts;
[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 `plotters-font-loader`
[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" "35ffa023a4a8f7e58e15a225a52e1fbaad1c11114838bd47d20e31560c24ff6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ffa023a4a8f7e58e15a225a52e1fbaad1c11114838bd47d20e31560c24ff6f", kill_on_drop: false }`
[INFO] [stdout] 35ffa023a4a8f7e58e15a225a52e1fbaad1c11114838bd47d20e31560c24ff6f