[INFO] fetching crate incrust 0.2.15...
[INFO] documenting incrust-0.2.15 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate incrust 0.2.15 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate incrust 0.2.15 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 incrust 0.2.15
[INFO] finished tweaking crates.io crate incrust 0.2.15
[INFO] tweaked toml for crates.io crate incrust 0.2.15 written to /workspace/builds/worker-5-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 nom v2.2.1
[INFO] [stderr]   Downloaded maplit v0.1.6
[INFO] [stderr]   Downloaded marksman_escape v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e638a24a96cf9400dbdc16bee1e7c4d8ec63948ad27d46712818799a1255940c
[INFO] running `Command { std: "docker" "start" "-a" "e638a24a96cf9400dbdc16bee1e7c4d8ec63948ad27d46712818799a1255940c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e638a24a96cf9400dbdc16bee1e7c4d8ec63948ad27d46712818799a1255940c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e638a24a96cf9400dbdc16bee1e7c4d8ec63948ad27d46712818799a1255940c", kill_on_drop: false }`
[INFO] [stdout] e638a24a96cf9400dbdc16bee1e7c4d8ec63948ad27d46712818799a1255940c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e516e421cc7b93dd269ccf825018b54759dcaf159ed29867063d333d33d260be
[INFO] running `Command { std: "docker" "start" "-a" "e516e421cc7b93dd269ccf825018b54759dcaf159ed29867063d333d33d260be", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking marksman_escape v0.1.2
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking maplit v0.1.6
[INFO] [stderr]  Documenting incrust v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(box_syntax)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `incrust`
[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 --crate-type lib --crate-name incrust src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4268329ba7b6dc67 -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-3d27937a83d9eb13.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-079e40212fd398a5.rmeta --extern marksman_escape=/opt/rustwide/target/debug/deps/libmarksman_escape-7948092f3d9dcf6a.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-78ed75ca170f0752.rmeta --cap-lints=warn --crate-version 0.2.15` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e516e421cc7b93dd269ccf825018b54759dcaf159ed29867063d333d33d260be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e516e421cc7b93dd269ccf825018b54759dcaf159ed29867063d333d33d260be", kill_on_drop: false }`
[INFO] [stdout] e516e421cc7b93dd269ccf825018b54759dcaf159ed29867063d333d33d260be
