[INFO] fetching crate rs-tiled_json 0.1.0...
[INFO] documenting rs-tiled_json-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rs-tiled_json 0.1.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate rs-tiled_json 0.1.0 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 crates.io crate rs-tiled_json 0.1.0
[INFO] finished tweaking crates.io crate rs-tiled_json 0.1.0
[INFO] tweaked toml for crates.io crate rs-tiled_json 0.1.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 298674a9f6aafc08bc3ffefc030209b55a27814664e8aa369a23309d664bc7c4
[INFO] running `Command { std: "docker" "start" "-a" "298674a9f6aafc08bc3ffefc030209b55a27814664e8aa369a23309d664bc7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "298674a9f6aafc08bc3ffefc030209b55a27814664e8aa369a23309d664bc7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298674a9f6aafc08bc3ffefc030209b55a27814664e8aa369a23309d664bc7c4", kill_on_drop: false }`
[INFO] [stdout] 298674a9f6aafc08bc3ffefc030209b55a27814664e8aa369a23309d664bc7c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 93d2b648c860030edd3d926fda91957b9de49c0633e2a10f1190d532efc702dc
[INFO] running `Command { std: "docker" "start" "-a" "93d2b648c860030edd3d926fda91957b9de49c0633e2a10f1190d532efc702dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]  Documenting rs-tiled_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> src/layerreader.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout] 6   | use serde::export::TryFrom;
[INFO] [stdout]     |            ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `export` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.137/src/lib.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 | use self::__private as export;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rs-tiled_json`
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rs_tiled_json src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bdbb436d7fa8fe28 -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-c80ebed8e9c01175.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-b8b8fd6696894862.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1a8241bae34a0cf7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-71fd310839342657.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "93d2b648c860030edd3d926fda91957b9de49c0633e2a10f1190d532efc702dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d2b648c860030edd3d926fda91957b9de49c0633e2a10f1190d532efc702dc", kill_on_drop: false }`
[INFO] [stdout] 93d2b648c860030edd3d926fda91957b9de49c0633e2a10f1190d532efc702dc