[INFO] fetching crate v_az_lmdb 0.1.1...
[INFO] documenting v_az_lmdb-0.1.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate v_az_lmdb 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate v_az_lmdb 0.1.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate v_az_lmdb 0.1.1
[INFO] finished tweaking crates.io crate v_az_lmdb 0.1.1
[INFO] tweaked toml for crates.io crate v_az_lmdb 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lmdb-rs-m v0.7.7
[INFO] [stderr]   Downloaded v_authorization v0.1.7
[INFO] [stderr]   Downloaded liblmdb-sys-m v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e92df903625cbfc8f1a8174a3bc27154868998a967eb8da97bab8a5d3af3f33c
[INFO] running `Command { std: "docker" "start" "-a" "e92df903625cbfc8f1a8174a3bc27154868998a967eb8da97bab8a5d3af3f33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e92df903625cbfc8f1a8174a3bc27154868998a967eb8da97bab8a5d3af3f33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92df903625cbfc8f1a8174a3bc27154868998a967eb8da97bab8a5d3af3f33c", kill_on_drop: false }`
[INFO] [stdout] e92df903625cbfc8f1a8174a3bc27154868998a967eb8da97bab8a5d3af3f33c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66899c1b053ae7677e7996a086cc91959525239a9bc15c2eae011471b2074603
[INFO] running `Command { std: "docker" "start" "-a" "66899c1b053ae7677e7996a086cc91959525239a9bc15c2eae011471b2074603", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking v_authorization v0.1.7
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling liblmdb-sys-m v0.2.3
[INFO] [stderr]     Checking lmdb-rs-m v0.7.7
[INFO] [stderr]  Documenting v_az_lmdb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `get` has an incompatible type for trait
[INFO] [stdout]   --> src/az-lmdb.rs:70:33
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn get(&self, key: &str) -> Result<String, i64> {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 expected `Option<String>`, found `std::string::String`
[INFO] [stdout]    |                                 help: change the output type to match the trait: `std::result::Result<std::option::Option<std::string::String>, std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected signature `fn(&LMDBStorage<'a>, &str) -> std::result::Result<std::option::Option<std::string::String>, std::io::Error>`
[INFO] [stdout]               found signature `fn(&LMDBStorage<'a>, &str) -> std::result::Result<std::string::String, i64>`
[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 E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `v_az_lmdb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name v_az_lmdb src/az-lmdb.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8e2d99ecbd63528a -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern lmdb_rs_m=/opt/rustwide/target/debug/deps/liblmdb_rs_m-c006fbdb3955795e.rmeta --extern v_authorization=/opt/rustwide/target/debug/deps/libv_authorization-8885b7006df5c468.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "66899c1b053ae7677e7996a086cc91959525239a9bc15c2eae011471b2074603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66899c1b053ae7677e7996a086cc91959525239a9bc15c2eae011471b2074603", kill_on_drop: false }`
[INFO] [stdout] 66899c1b053ae7677e7996a086cc91959525239a9bc15c2eae011471b2074603
