[INFO] cloning repository https://github.com/anyatran/graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anyatran/graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3435bf92153ecfe2eaaf764c2c57c3ccf28813d7
[INFO] documenting anyatran/graph against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anyatran/graph on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anyatran/graph
[INFO] finished tweaking git repo https://github.com/anyatran/graph
[INFO] tweaked toml for git repo https://github.com/anyatran/graph written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/anyatran/graph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] ae7ee4bf6c328dd28bc250499de32f1aee90db77896941d4e5258698fd3c6390
[INFO] running `Command { std: "docker" "start" "-a" "ae7ee4bf6c328dd28bc250499de32f1aee90db77896941d4e5258698fd3c6390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae7ee4bf6c328dd28bc250499de32f1aee90db77896941d4e5258698fd3c6390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae7ee4bf6c328dd28bc250499de32f1aee90db77896941d4e5258698fd3c6390", kill_on_drop: false }`
[INFO] [stdout] ae7ee4bf6c328dd28bc250499de32f1aee90db77896941d4e5258698fd3c6390
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ecdb4c1d65ec3ea8ca0d859e23aec7214a3e65f80d8e8bba22408b0c2550ebc
[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" "1ecdb4c1d65ec3ea8ca0d859e23aec7214a3e65f80d8e8bba22408b0c2550ebc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting graph_traversal v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0405]: cannot find trait `Reader` in this scope
[INFO] [stdout]   --> src/main.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                  ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BufferedReader` in module `io`
[INFO] [stdout]   --> src/main.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:14:9
[INFO] [stdout]     |
[INFO] [stdout] 14  |     io::stdio::print("-> ");
[INFO] [stdout]     |         ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:20:17
[INFO] [stdout]     |
[INFO] [stdout] 20  |             io::stdio::print("-> ");
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:29:21
[INFO] [stdout]     |
[INFO] [stdout] 29  |                 io::stdio::print("-> ");
[INFO] [stdout]     |                     ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:34:17
[INFO] [stdout]     |
[INFO] [stdout] 34  |             io::stdio::print(format!("{} ", n).as_slice());
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:36:13
[INFO] [stdout]     |
[INFO] [stdout] 36  |         io::stdio::print("\n");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:37:13
[INFO] [stdout]     |
[INFO] [stdout] 37  |         io::stdio::print("-> ");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |         if (input_split.clone().count() != 2) {
[INFO] [stdout]    |            ^                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -         if (input_split.clone().count() != 2) {
[INFO] [stdout] 18 +         if input_split.clone().count() != 2 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout]    |            ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout] 77 +         if current.as_slice() == end.as_slice() {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |             if (visited.as_slice().contains(n)) {
[INFO] [stdout]    |                ^                              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -             if (visited.as_slice().contains(n)) {
[INFO] [stdout] 89 +             if visited.as_slice().contains(n) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout]    |            ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout] 94 +         if !visited.as_slice().contains(&current) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `graph_traversal`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name graph_traversal src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=a7e7336d05b780f9 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1ecdb4c1d65ec3ea8ca0d859e23aec7214a3e65f80d8e8bba22408b0c2550ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ecdb4c1d65ec3ea8ca0d859e23aec7214a3e65f80d8e8bba22408b0c2550ebc", kill_on_drop: false }`
[INFO] [stdout] 1ecdb4c1d65ec3ea8ca0d859e23aec7214a3e65f80d8e8bba22408b0c2550ebc