[INFO] cloning repository https://github.com/cis198-2016s/hw04
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cis198-2016s/hw04" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcis198-2016s%2Fhw04", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcis198-2016s%2Fhw04'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d4ff5d6004215e2b89b4a807bb4306766ec36e7
[INFO] documenting cis198-2016s/hw04 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%2Fcis198-2016s%2Fhw04" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cis198-2016s/hw04 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/cis198-2016s/hw04
[INFO] finished tweaking git repo https://github.com/cis198-2016s/hw04
[INFO] tweaked toml for git repo https://github.com/cis198-2016s/hw04 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/cis198-2016s/hw04 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] [stdout] c781f5ef1e17911e42880273ef6c00244aaabacaeb6f269698293b23ff8d2c86
[INFO] running `Command { std: "docker" "start" "-a" "c781f5ef1e17911e42880273ef6c00244aaabacaeb6f269698293b23ff8d2c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c781f5ef1e17911e42880273ef6c00244aaabacaeb6f269698293b23ff8d2c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c781f5ef1e17911e42880273ef6c00244aaabacaeb6f269698293b23ff8d2c86", kill_on_drop: false }`
[INFO] [stdout] c781f5ef1e17911e42880273ef6c00244aaabacaeb6f269698293b23ff8d2c86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] bd3fa4236b5b666a3a2b0224439a63209ff8d0c6cc6aa47e72a0ca69468fc177
[INFO] running `Command { std: "docker" "start" "-a" "bd3fa4236b5b666a3a2b0224439a63209ff8d0c6cc6aa47e72a0ca69468fc177", kill_on_drop: false }`
[INFO] [stderr]  Documenting hw04 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rpn::Stack`
[INFO] [stdout]  --> src/parser.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rpn::{self, Stack};
[INFO] [stdout]   |                 ^^^^^ no `Stack` in `rpn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Result` in module `rpn`
[INFO] [stdout]  --> src/parser.rs:6:39
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_eval_print_loop() -> rpn::Result<()> {
[INFO] [stdout]   |                                       ^^^^^^ not found in `rpn`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parser::io::Result;
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Result;
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::result::Result;
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread::Result;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `Result`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 6 - pub fn read_eval_print_loop() -> rpn::Result<()> {
[INFO] [stdout] 6 + pub fn read_eval_print_loop() -> Result<()> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Result` in module `rpn`
[INFO] [stdout]   --> src/parser.rs:21:59
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn evaluate_line(stack: &mut Stack, buf: &String) -> rpn::Result<()> {
[INFO] [stdout]    |                                                           ^^^^^^ not found in `rpn`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use parser::io::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::fmt::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::result::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::thread::Result;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Result`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 21 - fn evaluate_line(stack: &mut Stack, buf: &String) -> rpn::Result<()> {
[INFO] [stdout] 21 + fn evaluate_line(stack: &mut Stack, buf: &String) -> Result<()> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Stack` in this scope
[INFO] [stdout]   --> src/rpn.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Stack {
[INFO] [stdout]    |      ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Stack` in this scope
[INFO] [stdout]   --> src/rpn.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new() -> Stack {
[INFO] [stdout]    |                     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `hw04`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name hw04 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=f4ffe2198320a8c4 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bd3fa4236b5b666a3a2b0224439a63209ff8d0c6cc6aa47e72a0ca69468fc177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3fa4236b5b666a3a2b0224439a63209ff8d0c6cc6aa47e72a0ca69468fc177", kill_on_drop: false }`
[INFO] [stdout] bd3fa4236b5b666a3a2b0224439a63209ff8d0c6cc6aa47e72a0ca69468fc177