[INFO] fetching crate mdbook-mermaid 0.8.3...
[INFO] checking mdbook-mermaid-0.8.3 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate mdbook-mermaid 0.8.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mdbook-mermaid 0.8.3 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-mermaid 0.8.3
[INFO] finished tweaking crates.io crate mdbook-mermaid 0.8.3
[INFO] tweaked toml for crates.io crate mdbook-mermaid 0.8.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mdbook-mermaid 0.8.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cc749da86c02bd5ec054d514d598d5d23ecf55be3dbb47588076ae9f731eea7
[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" "6cc749da86c02bd5ec054d514d598d5d23ecf55be3dbb47588076ae9f731eea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cc749da86c02bd5ec054d514d598d5d23ecf55be3dbb47588076ae9f731eea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc749da86c02bd5ec054d514d598d5d23ecf55be3dbb47588076ae9f731eea7", kill_on_drop: false }`
[INFO] [stdout] 6cc749da86c02bd5ec054d514d598d5d23ecf55be3dbb47588076ae9f731eea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 10fad9ca42f9e1466d811d15d4f6b138f4feee822a56f0c45c8ee5572ca57206
[INFO] running `Command { std: "docker" "start" "-a" "10fad9ca42f9e1466d811d15d4f6b138f4feee822a56f0c45c8ee5572ca57206", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazycell v1.2.1
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[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
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[INFO] [stderr]     Checking unreachable v1.0.0
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[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking predicates v1.0.7
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[INFO] [stderr]     Checking combine v3.8.1
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[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling generic-array v0.14.4
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[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
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[INFO] [stderr]     Checking bstr v0.2.15
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[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking pulldown-cmark v0.7.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking sha-1 v0.9.1
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[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v4.0.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v4.0.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.24
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tokio-tungstenite v0.11.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking elasticlunr-rs v2.3.6
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking ammonia v3.1.0
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking mdbook v0.4.10
[INFO] [stderr]     Checking mdbook-mermaid v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "10fad9ca42f9e1466d811d15d4f6b138f4feee822a56f0c45c8ee5572ca57206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fad9ca42f9e1466d811d15d4f6b138f4feee822a56f0c45c8ee5572ca57206", kill_on_drop: false }`
[INFO] [stdout] 10fad9ca42f9e1466d811d15d4f6b138f4feee822a56f0c45c8ee5572ca57206