[INFO] crate rair-io 0.1.0 is already in cache
[INFO] documenting rair-io-0.1.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate rair-io 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rair-io 0.1.0 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 rair-io 0.1.0
[INFO] finished tweaking crates.io crate rair-io 0.1.0
[INFO] tweaked toml for crates.io crate rair-io 0.1.0 written to /workspace/builds/worker-13/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] [stderr]     Blocking waiting for file lock on package cache
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] b65dae6924138b91e36d781e11bdd0d01414962caddca6655ba2ef5e63243ae8
[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" "b65dae6924138b91e36d781e11bdd0d01414962caddca6655ba2ef5e63243ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b65dae6924138b91e36d781e11bdd0d01414962caddca6655ba2ef5e63243ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65dae6924138b91e36d781e11bdd0d01414962caddca6655ba2ef5e63243ae8", kill_on_drop: false }`
[INFO] [stdout] b65dae6924138b91e36d781e11bdd0d01414962caddca6655ba2ef5e63243ae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b2d1c324634efc323c0b9a94caa27bef0180bac6317fa6652681738eaa099308
[INFO] running `Command { std: "docker" "start" "-a" "b2d1c324634efc323c0b9a94caa27bef0180bac6317fa6652681738eaa099308", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking rtrees v0.1.0
[INFO] [stderr]  Documenting rair-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `u64` is both a builtin type and a macro
[INFO] [stdout]    --> src/io.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |     /// the unique file handler represented by [u64] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^ ambiguous link
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout] help: to link to the builtin type, prefix with the item type
[INFO] [stdout]     |
[INFO] [stdout] 104 |     /// the unique file handler represented by [type@u64] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^^^^^^
[INFO] [stdout] help: to link to the macro, add an exclamation mark
[INFO] [stdout]     |
[INFO] [stdout] 104 |     /// the unique file handler represented by [u64!] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `u64` is both a builtin type and a macro
[INFO] [stdout]    --> src/io.rs:134:49
[INFO] [stdout]     |
[INFO] [stdout] 134 |     /// the unique file handler represented by [u64] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^ ambiguous link
[INFO] [stdout]     |
[INFO] [stdout] help: to link to the builtin type, prefix with the item type
[INFO] [stdout]     |
[INFO] [stdout] 134 |     /// the unique file handler represented by [type@u64] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^^^^^^
[INFO] [stdout] help: to link to the macro, add an exclamation mark
[INFO] [stdout]     |
[INFO] [stdout] 134 |     /// the unique file handler represented by [u64!] is returned. In case of error, an [IoError]
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.05s
[INFO] running `Command { std: "docker" "inspect" "b2d1c324634efc323c0b9a94caa27bef0180bac6317fa6652681738eaa099308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d1c324634efc323c0b9a94caa27bef0180bac6317fa6652681738eaa099308", kill_on_drop: false }`
[INFO] [stdout] b2d1c324634efc323c0b9a94caa27bef0180bac6317fa6652681738eaa099308