[INFO] cloning repository https://github.com/rustviz/rustviz-example-mdbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustviz/rustviz-example-mdbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Frustviz-example-mdbook", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Frustviz-example-mdbook'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 792ebb3dd321267087aefa75708b4ed22fc68f06
[INFO] checking rustviz/rustviz-example-mdbook against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Frustviz-example-mdbook" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  91% (1142/1249)
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Updating files: 100% (1249/1249), done.
[INFO] validating manifest of git repo https://github.com/rustviz/rustviz-example-mdbook on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustviz/rustviz-example-mdbook
[INFO] finished tweaking git repo https://github.com/rustviz/rustviz-example-mdbook
[INFO] tweaked toml for git repo https://github.com/rustviz/rustviz-example-mdbook written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rustviz/rustviz-example-mdbook already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7f975d15ae73261f001e1680029f371c7f8107cb1e6e7f09344704d7421e650
[INFO] running `Command { std: "docker" "start" "-a" "e7f975d15ae73261f001e1680029f371c7f8107cb1e6e7f09344704d7421e650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7f975d15ae73261f001e1680029f371c7f8107cb1e6e7f09344704d7421e650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f975d15ae73261f001e1680029f371c7f8107cb1e6e7f09344704d7421e650", kill_on_drop: false }`
[INFO] [stdout] e7f975d15ae73261f001e1680029f371c7f8107cb1e6e7f09344704d7421e650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07f06a8e3ed639906547338e48583631840fa7464336b92af0886a4069caa22d
[INFO] running `Command { std: "docker" "start" "-a" "07f06a8e3ed639906547338e48583631840fa7464336b92af0886a4069caa22d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v3.5.5
[INFO] [stderr]     Checking rustviz-svg v0.1.0 (/opt/rustwide/workdir/src/svg_generator)
[INFO] [stdout] warning: struct `StructTimelinePanelData` is never constructed
[INFO] [stdout]   --> src/svg_generator/svg_frontend/timeline_panel.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct StructTimelinePanelData {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustviz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.19s
[INFO] running `Command { std: "docker" "inspect" "07f06a8e3ed639906547338e48583631840fa7464336b92af0886a4069caa22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f06a8e3ed639906547338e48583631840fa7464336b92af0886a4069caa22d", kill_on_drop: false }`
[INFO] [stdout] 07f06a8e3ed639906547338e48583631840fa7464336b92af0886a4069caa22d