[INFO] fetching crate wf2_core 0.31.0...
[INFO] documenting wf2_core-0.31.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate wf2_core 0.31.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate wf2_core 0.31.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wf2_core 0.31.0
[INFO] finished tweaking crates.io crate wf2_core 0.31.0
[INFO] tweaked toml for crates.io crate wf2_core 0.31.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded doc_link v0.1.0
[INFO] [stderr]   Downloaded env_proc v0.1.0
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] f9b5091bfa0bf0763805b31e1b650dc6900ee2a279a366db8d92aa0e5f7dd4f2
[INFO] running `Command { std: "docker" "start" "-a" "f9b5091bfa0bf0763805b31e1b650dc6900ee2a279a366db8d92aa0e5f7dd4f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9b5091bfa0bf0763805b31e1b650dc6900ee2a279a366db8d92aa0e5f7dd4f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b5091bfa0bf0763805b31e1b650dc6900ee2a279a366db8d92aa0e5f7dd4f2", kill_on_drop: false }`
[INFO] [stdout] f9b5091bfa0bf0763805b31e1b650dc6900ee2a279a366db8d92aa0e5f7dd4f2
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46712064033fa431ef3ea556e6543156c493561f24ab62b8f5d9e487eb670e31
[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" "46712064033fa431ef3ea556e6543156c493561f24ab62b8f5d9e487eb670e31", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
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[INFO] [stderr]     Checking try_from v0.3.2
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[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking mio-uds v0.6.8
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[INFO] [stderr]     Checking tokio v0.1.22
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[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling from_file_derive v0.1.3
[INFO] [stderr]    Compiling env_proc v0.1.0
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]    Compiling doc_link v0.1.0
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[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]  Documenting wf2_core v0.31.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[dc]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/dc.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | /// [`dc`] provides a struct that can be serialized to a docker-composer.yaml file.
[INFO] [stdout]   |      ^^^^ cannot be resolved, ignoring
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Context]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/recipes/recipe_kinds.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | /// a [`Context`] + [`Cmd`] into a `Vec` of [`Task`]
[INFO] [stdout]    |        ^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Cmd]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/recipes/recipe_kinds.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | /// a [`Context`] + [`Cmd`] into a `Vec` of [`Task`]
[INFO] [stdout]    |                      ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Task]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/recipes/recipe_kinds.rs:11:46
[INFO] [stdout]    |
[INFO] [stdout] 11 | /// a [`Context`] + [`Cmd`] into a `Vec` of [`Task`]
[INFO] [stdout]    |                                              ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "46712064033fa431ef3ea556e6543156c493561f24ab62b8f5d9e487eb670e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46712064033fa431ef3ea556e6543156c493561f24ab62b8f5d9e487eb670e31", kill_on_drop: false }`
[INFO] [stdout] 46712064033fa431ef3ea556e6543156c493561f24ab62b8f5d9e487eb670e31