[INFO] fetching crate mdbook 0.4.40...
[INFO] checking mdbook-0.4.40 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate mdbook 0.4.40 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mdbook 0.4.40 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook 0.4.40
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mdbook 0.4.40
[INFO] tweaked toml for crates.io crate mdbook 0.4.40 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mdbook 0.4.40 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded normpath v1.2.0
[INFO] [stderr]   Downloaded opener v0.7.0
[INFO] [stderr]   Downloaded ammonia v4.0.0
[INFO] [stderr]   Downloaded elasticlunr-rs v3.0.2
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73e6237b2fd135fd4b61ae9354f23b2d2c008b00337f628280b63a0bd727097e
[INFO] running `Command { std: "docker" "start" "-a" "73e6237b2fd135fd4b61ae9354f23b2d2c008b00337f628280b63a0bd727097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73e6237b2fd135fd4b61ae9354f23b2d2c008b00337f628280b63a0bd727097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73e6237b2fd135fd4b61ae9354f23b2d2c008b00337f628280b63a0bd727097e", kill_on_drop: false }`
[INFO] [stdout] 73e6237b2fd135fd4b61ae9354f23b2d2c008b00337f628280b63a0bd727097e
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a465a9f4542a1ad2bd036c2c61e10b715e918ef63a462e31495bb2684520195
[INFO] running `Command { std: "docker" "start" "-a" "5a465a9f4542a1ad2bd036c2c61e10b715e918ef63a462e31495bb2684520195", kill_on_drop: false }`
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[INFO] [stderr]     Checking mdbook v0.4.40 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "5a465a9f4542a1ad2bd036c2c61e10b715e918ef63a462e31495bb2684520195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a465a9f4542a1ad2bd036c2c61e10b715e918ef63a462e31495bb2684520195", kill_on_drop: false }`
[INFO] [stdout] 5a465a9f4542a1ad2bd036c2c61e10b715e918ef63a462e31495bb2684520195