[INFO] fetching crate piper 0.1.3...
[INFO] documenting piper-0.1.3 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate piper 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate piper 0.1.3 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 piper 0.1.3
[INFO] finished tweaking crates.io crate piper 0.1.3
[INFO] tweaked toml for crates.io crate piper 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate piper 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 5e44ae008918fe23717aefa79bb6d86a0c5fe4b21088b4a28eb64168fa135b2a
[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" "5e44ae008918fe23717aefa79bb6d86a0c5fe4b21088b4a28eb64168fa135b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e44ae008918fe23717aefa79bb6d86a0c5fe4b21088b4a28eb64168fa135b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e44ae008918fe23717aefa79bb6d86a0c5fe4b21088b4a28eb64168fa135b2a", kill_on_drop: false }`
[INFO] [stdout] 5e44ae008918fe23717aefa79bb6d86a0c5fe4b21088b4a28eb64168fa135b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2eee50beeaefb60e2d545294c32331ab58532649a828e99ec8d6af18d4b6211b
[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" "2eee50beeaefb60e2d545294c32331ab58532649a828e99ec8d6af18d4b6211b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]  Documenting piper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[Notified]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/event.rs:373:40
[INFO] [stdout]     |
[INFO] [stdout] 373 |     /// Returns `true` if this is the [`Notified`] state.
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.38s
[INFO] running `Command { std: "docker" "inspect" "2eee50beeaefb60e2d545294c32331ab58532649a828e99ec8d6af18d4b6211b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eee50beeaefb60e2d545294c32331ab58532649a828e99ec8d6af18d4b6211b", kill_on_drop: false }`
[INFO] [stdout] 2eee50beeaefb60e2d545294c32331ab58532649a828e99ec8d6af18d4b6211b