[INFO] fetching crate mdbook-plantuml 0.6.0-beta...
[INFO] checking mdbook-plantuml-0.6.0-beta against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate mdbook-plantuml 0.6.0-beta into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mdbook-plantuml 0.6.0-beta on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-plantuml 0.6.0-beta
[INFO] finished tweaking crates.io crate mdbook-plantuml 0.6.0-beta
[INFO] tweaked toml for crates.io crate mdbook-plantuml 0.6.0-beta written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mdbook-plantuml 0.6.0-beta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 34a90db5c7edee5fd5f72fd21ec9e9f8853e70a569ad8bf082f934d32b29a3ef
[INFO] running `Command { std: "docker" "start" "-a" "34a90db5c7edee5fd5f72fd21ec9e9f8853e70a569ad8bf082f934d32b29a3ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a90db5c7edee5fd5f72fd21ec9e9f8853e70a569ad8bf082f934d32b29a3ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a90db5c7edee5fd5f72fd21ec9e9f8853e70a569ad8bf082f934d32b29a3ef", kill_on_drop: false }`
[INFO] [stdout] 34a90db5c7edee5fd5f72fd21ec9e9f8853e70a569ad8bf082f934d32b29a3ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 799e93a2eca92814d3881ed22f91e24287a92c761067111dad899fada9f6f1ac
[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" "799e93a2eca92814d3881ed22f91e24287a92c761067111dad899fada9f6f1ac", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/markdown_plantuml_pipeline.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             (c == b'`' || c == b'~')
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/markdown_plantuml_pipeline.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             (c == b'`' || c == b'~')
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 51s
[INFO] running `Command { std: "docker" "inspect" "799e93a2eca92814d3881ed22f91e24287a92c761067111dad899fada9f6f1ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "799e93a2eca92814d3881ed22f91e24287a92c761067111dad899fada9f6f1ac", kill_on_drop: false }`
[INFO] [stdout] 799e93a2eca92814d3881ed22f91e24287a92c761067111dad899fada9f6f1ac