[INFO] crate ptree 0.2.1 is already in cache
[INFO] documenting ptree-0.2.1 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate ptree 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ptree 0.2.1 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 ptree 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ptree 0.2.1
[INFO] tweaked toml for crates.io crate ptree 0.2.1 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 269015cc1ee5c08a394acbd46514f7cfd44ca9e9909b7458d93443e6800e9c8b
[INFO] running `Command { std: "docker" "start" "-a" "269015cc1ee5c08a394acbd46514f7cfd44ca9e9909b7458d93443e6800e9c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "269015cc1ee5c08a394acbd46514f7cfd44ca9e9909b7458d93443e6800e9c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "269015cc1ee5c08a394acbd46514f7cfd44ca9e9909b7458d93443e6800e9c8b", kill_on_drop: false }`
[INFO] [stdout] 269015cc1ee5c08a394acbd46514f7cfd44ca9e9909b7458d93443e6800e9c8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f9c70efb93e9c4aeaa3fb1ef6cf9145b9216e9ea8b95c6ba400af053c3a9a070
[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" "f9c70efb93e9c4aeaa3fb1ef6cf9145b9216e9ea8b95c6ba400af053c3a9a070", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]  Documenting ptree v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[config_dir]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:115:86
[INFO] [stdout]     |
[INFO] [stdout] 115 |     /// Otherwise, any file with a stem of `ptree` inside the directory returned by [`config_dir`]
[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: `[indent]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 |     /// [`indent`] and [`depth`] accept non-negative integers.
[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: `[depth]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:125:25
[INFO] [stdout]     |
[INFO] [stdout] 125 |     /// [`indent`] and [`depth`] accept non-negative integers.
[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: `[styled]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 127 |     /// [`styled`] accepts either `"always"`, `"tty"` or `"never"`
[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: `[leaf]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:129:10
[INFO] [stdout]     |
[INFO] [stdout] 129 |     /// [`leaf`] and [`branch`] accept a `Style` structure.
[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: `[branch]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:129:23
[INFO] [stdout]     |
[INFO] [stdout] 129 |     /// [`leaf`] and [`branch`] accept a `Style` structure.
[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: `[characters]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/print_config.rs:141:10
[INFO] [stdout]     |
[INFO] [stdout] 141 |     /// [`characters`] can be set to a string with a value of "utf", "ascii", "ascii-plus", "utf-bold", "utf-double"
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.94s
[INFO] running `Command { std: "docker" "inspect" "f9c70efb93e9c4aeaa3fb1ef6cf9145b9216e9ea8b95c6ba400af053c3a9a070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c70efb93e9c4aeaa3fb1ef6cf9145b9216e9ea8b95c6ba400af053c3a9a070", kill_on_drop: false }`
[INFO] [stdout] f9c70efb93e9c4aeaa3fb1ef6cf9145b9216e9ea8b95c6ba400af053c3a9a070