[INFO] fetching crate dbkit-engine 0.0.9...
[INFO] documenting dbkit-engine-0.0.9 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate dbkit-engine 0.0.9 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate dbkit-engine 0.0.9 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dbkit-engine 0.0.9
[INFO] finished tweaking crates.io crate dbkit-engine 0.0.9
[INFO] tweaked toml for crates.io crate dbkit-engine 0.0.9 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7610b83e49be7c2a1770af7601f2bee8397087f55da14e30a7be45ad7df97308
[INFO] running `Command { std: "docker" "start" "-a" "7610b83e49be7c2a1770af7601f2bee8397087f55da14e30a7be45ad7df97308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7610b83e49be7c2a1770af7601f2bee8397087f55da14e30a7be45ad7df97308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7610b83e49be7c2a1770af7601f2bee8397087f55da14e30a7be45ad7df97308", kill_on_drop: false }`
[INFO] [stdout] 7610b83e49be7c2a1770af7601f2bee8397087f55da14e30a7be45ad7df97308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9303d703fc6ac30ed6436669fd13e5da0aecb32adcf0be374d57f8ce0100c8c
[INFO] running `Command { std: "docker" "start" "-a" "f9303d703fc6ac30ed6436669fd13e5da0aecb32adcf0be374d57f8ce0100c8c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]  Documenting dbkit-engine v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dbkit-engine`
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name dbkit_engine src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a99635d176487d64 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-7a1286d016e4ad6e.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-36c8750b6c196e20.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-c276addda5c5d7b3.rmeta --cap-lints=warn --crate-version 0.0.9` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f9303d703fc6ac30ed6436669fd13e5da0aecb32adcf0be374d57f8ce0100c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9303d703fc6ac30ed6436669fd13e5da0aecb32adcf0be374d57f8ce0100c8c", kill_on_drop: false }`
[INFO] [stdout] f9303d703fc6ac30ed6436669fd13e5da0aecb32adcf0be374d57f8ce0100c8c
