[INFO] fetching crate mdbook-nix-eval 1.0.1...
[INFO] checking mdbook-nix-eval-1.0.1 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate mdbook-nix-eval 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mdbook-nix-eval 1.0.1 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-nix-eval 1.0.1
[INFO] finished tweaking crates.io crate mdbook-nix-eval 1.0.1
[INFO] tweaked toml for crates.io crate mdbook-nix-eval 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mdbook-nix-eval 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] 3ffc60a07cd12a81fd3d400456cd44cab835ce16aed4cca1f636cd5825db28b9
[INFO] running `Command { std: "docker" "start" "-a" "3ffc60a07cd12a81fd3d400456cd44cab835ce16aed4cca1f636cd5825db28b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ffc60a07cd12a81fd3d400456cd44cab835ce16aed4cca1f636cd5825db28b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ffc60a07cd12a81fd3d400456cd44cab835ce16aed4cca1f636cd5825db28b9", kill_on_drop: false }`
[INFO] [stdout] 3ffc60a07cd12a81fd3d400456cd44cab835ce16aed4cca1f636cd5825db28b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8916c89ce73b9be2581766773d0231511dec37450cb1258b9887c18781c5c77a
[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" "8916c89ce73b9be2581766773d0231511dec37450cb1258b9887c18781c5c77a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v6.0.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking handlebars v3.5.3
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]     Checking open v1.5.1
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking elasticlunr-rs v2.3.10
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking ammonia v3.1.1
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking mdbook v0.4.7
[INFO] [stderr]     Checking mdbook-nix-eval v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `Command { std: "docker" "inspect" "8916c89ce73b9be2581766773d0231511dec37450cb1258b9887c18781c5c77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8916c89ce73b9be2581766773d0231511dec37450cb1258b9887c18781c5c77a", kill_on_drop: false }`
[INFO] [stdout] 8916c89ce73b9be2581766773d0231511dec37450cb1258b9887c18781c5c77a