[INFO] cloning repository https://github.com/SamuelMarks/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamuelMarks/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelMarks%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelMarks%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 436a6d87e5ee54c7b48bcfd6bb0a9f75c2ba9273
[INFO] documenting SamuelMarks/rust-playground against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelMarks%2Frust-playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SamuelMarks/rust-playground on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SamuelMarks/rust-playground
[INFO] finished tweaking git repo https://github.com/SamuelMarks/rust-playground
[INFO] tweaked toml for git repo https://github.com/SamuelMarks/rust-playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SamuelMarks/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.15.22
[INFO] [stderr]   Downloaded serde_derive v1.0.81
[INFO] [stderr]   Downloaded serde v1.0.81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62b753b9dc448b971307e8fcc8630d1b9f486aebe49796c7f9d1ce3ec09bf3ee
[INFO] running `Command { std: "docker" "start" "-a" "62b753b9dc448b971307e8fcc8630d1b9f486aebe49796c7f9d1ce3ec09bf3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62b753b9dc448b971307e8fcc8630d1b9f486aebe49796c7f9d1ce3ec09bf3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b753b9dc448b971307e8fcc8630d1b9f486aebe49796c7f9d1ce3ec09bf3ee", kill_on_drop: false }`
[INFO] [stdout] 62b753b9dc448b971307e8fcc8630d1b9f486aebe49796c7f9d1ce3ec09bf3ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cccf4349d9db956426137cd1e5cfaba2b474f94ba4e28910009cc7a708efd545
[INFO] running `Command { std: "docker" "start" "-a" "cccf4349d9db956426137cd1e5cfaba2b474f94ba4e28910009cc7a708efd545", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]  Documenting rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::num::ParseIntError;
[INFO] [stdout]    |     ^^^^ maybe a missing crate `core`?
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding `extern crate core` to use the `core` crate
[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 E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rust-playground`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rust_playground 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=fe46ce0ee16ba31e -L dependency=/opt/rustwide/target/debug/deps --extern serde=/opt/rustwide/target/debug/deps/libserde-102b735f1961d961.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-218c77d40628f864.so --extern toml=/opt/rustwide/target/debug/deps/libtoml-1fc167b648bf4573.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-c94f30799a7ea7a4.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cccf4349d9db956426137cd1e5cfaba2b474f94ba4e28910009cc7a708efd545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cccf4349d9db956426137cd1e5cfaba2b474f94ba4e28910009cc7a708efd545", kill_on_drop: false }`
[INFO] [stdout] cccf4349d9db956426137cd1e5cfaba2b474f94ba4e28910009cc7a708efd545
