[INFO] fetching crate prefix-map 0.3.1...
[INFO] documenting prefix-map-0.3.1 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate prefix-map 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate prefix-map 0.3.1 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefix-map 0.3.1
[INFO] finished tweaking crates.io crate prefix-map 0.3.1
[INFO] tweaked toml for crates.io crate prefix-map 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] d0681f1e6e235d4adf626e9bf244b5b68e711a008ebf12ff3245f826cf64d2db
[INFO] running `Command { std: "docker" "start" "-a" "d0681f1e6e235d4adf626e9bf244b5b68e711a008ebf12ff3245f826cf64d2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0681f1e6e235d4adf626e9bf244b5b68e711a008ebf12ff3245f826cf64d2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0681f1e6e235d4adf626e9bf244b5b68e711a008ebf12ff3245f826cf64d2db", kill_on_drop: false }`
[INFO] [stdout] d0681f1e6e235d4adf626e9bf244b5b68e711a008ebf12ff3245f826cf64d2db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] cdaaffb1969e72c263431657d1fe782c5216e75cb44c8f5992cf9ad4294d521a
[INFO] running `Command { std: "docker" "start" "-a" "cdaaffb1969e72c263431657d1fe782c5216e75cb44c8f5992cf9ad4294d521a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting prefix-map v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `<Self as std::borrow::ToOwned>::Owned: prefix::OwnedPrefix` is not satisfied
[INFO] [stdout]   --> src/prefix.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ToPrefix: ToOwned {
[INFO] [stdout]    | --------------------------- required by `prefix::ToPrefix`
[INFO] [stdout] ...
[INFO] [stdout] 14 |     type OwnedPrefix: OwnedPrefix<Item=Self::OwnedItem> + Borrow<Self> =
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `prefix::OwnedPrefix` is not implemented for `<Self as std::borrow::ToOwned>::Owned`
[INFO] [stdout]    |
[INFO] [stdout] help: consider further restricting the associated type
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ToPrefix: ToOwned where <Self as std::borrow::ToOwned>::Owned: prefix::OwnedPrefix {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `prefix-map`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name prefix_map src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-507a3e41041de1e4.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "cdaaffb1969e72c263431657d1fe782c5216e75cb44c8f5992cf9ad4294d521a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdaaffb1969e72c263431657d1fe782c5216e75cb44c8f5992cf9ad4294d521a", kill_on_drop: false }`
[INFO] [stdout] cdaaffb1969e72c263431657d1fe782c5216e75cb44c8f5992cf9ad4294d521a