[INFO] fetching crate mdbook-skill-tree 2.0.0...
[INFO] building mdbook-skill-tree-2.0.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate mdbook-skill-tree 2.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mdbook-skill-tree 2.0.0 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-skill-tree 2.0.0
[INFO] finished tweaking crates.io crate mdbook-skill-tree 2.0.0
[INFO] tweaked toml for crates.io crate mdbook-skill-tree 2.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mdbook-skill-tree 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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] 96cdbb31472aaa7bbfd9fdbc9a390f142b600d9141061eb61763acb3f1c90f8d
[INFO] running `Command { std: "docker" "start" "-a" "96cdbb31472aaa7bbfd9fdbc9a390f142b600d9141061eb61763acb3f1c90f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96cdbb31472aaa7bbfd9fdbc9a390f142b600d9141061eb61763acb3f1c90f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96cdbb31472aaa7bbfd9fdbc9a390f142b600d9141061eb61763acb3f1c90f8d", kill_on_drop: false }`
[INFO] [stdout] 96cdbb31472aaa7bbfd9fdbc9a390f142b600d9141061eb61763acb3f1c90f8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 080ebdc7034202968eb728d066fd081d3101dbe84dd6ce44cd19e12fed7e17df
[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" "080ebdc7034202968eb728d066fd081d3101dbe84dd6ce44cd19e12fed7e17df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
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[INFO] [stderr]    Compiling rand_core v0.4.2
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[INFO] [stderr]    Compiling version_check v0.1.5
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[INFO] [stderr]    Compiling num-traits v0.2.11
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[INFO] [stderr]    Compiling unreachable v1.0.0
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[INFO] [stderr]    Compiling rand_xorshift v0.1.1
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[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling url v1.7.2
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[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling pulldown-cmark-to-cmark v4.0.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling ws v0.9.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling toml_edit v0.1.5
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
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[INFO] [stderr]    Compiling iron v0.6.1
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[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling staticfile v0.5.0
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling handlebars v3.1.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling toml-query_derive v0.9.2
[INFO] [stderr]    Compiling fehler v1.0.0
[INFO] [stderr]    Compiling toml-query v0.9.2
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]    Compiling elasticlunr-rs v2.3.9
[INFO] [stderr]    Compiling skill-tree v2.0.0
[INFO] [stderr]    Compiling xml5ever v0.16.1
[INFO] [stderr]    Compiling markup5ever_rcdom v0.1.0
[INFO] [stderr]    Compiling ammonia v3.1.0
[INFO] [stderr]    Compiling mdbook v0.3.7
[INFO] [stderr]    Compiling mdbook-skill-tree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 12s
[INFO] running `Command { std: "docker" "inspect" "080ebdc7034202968eb728d066fd081d3101dbe84dd6ce44cd19e12fed7e17df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "080ebdc7034202968eb728d066fd081d3101dbe84dd6ce44cd19e12fed7e17df", kill_on_drop: false }`
[INFO] [stdout] 080ebdc7034202968eb728d066fd081d3101dbe84dd6ce44cd19e12fed7e17df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc19c5b132e68032b09c1989e96553e4ffca1fc54a4e65fcdeccb9aefb09d1f
[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" "fcc19c5b132e68032b09c1989e96553e4ffca1fc54a4e65fcdeccb9aefb09d1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdbook-skill-tree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "fcc19c5b132e68032b09c1989e96553e4ffca1fc54a4e65fcdeccb9aefb09d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc19c5b132e68032b09c1989e96553e4ffca1fc54a4e65fcdeccb9aefb09d1f", kill_on_drop: false }`
[INFO] [stdout] fcc19c5b132e68032b09c1989e96553e4ffca1fc54a4e65fcdeccb9aefb09d1f