[INFO] fetching crate ugrad 0.1.0...
[INFO] documenting ugrad-0.1.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate ugrad 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ugrad 0.1.0 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 ugrad 0.1.0
[INFO] finished tweaking crates.io crate ugrad 0.1.0
[INFO] tweaked toml for crates.io crate ugrad 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ugrad 0.1.0 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-intrusive v0.5.0
[INFO] [stderr]   Downloaded wgpu-types v0.15.1
[INFO] [stderr]   Downloaded glow v0.12.0
[INFO] [stderr]   Downloaded mnist v0.5.0
[INFO] [stderr]   Downloaded pbr v1.1.1
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded wgpu-hal v0.15.2
[INFO] [stderr]   Downloaded defer v0.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.60+curl-7.88.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e1b0d1e1f74aaab7656f329e1da39c815ec9a92a49ad0f624a6c14a8d4370ed4
[INFO] running `Command { std: "docker" "start" "-a" "e1b0d1e1f74aaab7656f329e1da39c815ec9a92a49ad0f624a6c14a8d4370ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1b0d1e1f74aaab7656f329e1da39c815ec9a92a49ad0f624a6c14a8d4370ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b0d1e1f74aaab7656f329e1da39c815ec9a92a49ad0f624a6c14a8d4370ed4", kill_on_drop: false }`
[INFO] [stdout] e1b0d1e1f74aaab7656f329e1da39c815ec9a92a49ad0f624a6c14a8d4370ed4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 69259d47b8772b6640cb4a568ee0be184e270ddb2867bdecb77b0709aa564c89
[INFO] running `Command { std: "docker" "start" "-a" "69259d47b8772b6640cb4a568ee0be184e270ddb2867bdecb77b0709aa564c89", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
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[INFO] [stderr]     Checking glow v0.12.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.20
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[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking futures-intrusive v0.5.0
[INFO] [stderr]     Checking defer v0.1.0
[INFO] [stderr]     Checking pollster v0.3.0
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking is-terminal v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling bytemuck_derive v1.4.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking wgpu-types v0.15.1
[INFO] [stderr]     Checking ron v0.8.0
[INFO] [stderr]     Checking naga v0.11.0
[INFO] [stderr]     Checking petgraph v0.6.3
[INFO] [stderr]     Checking daggy v0.8.0
[INFO] [stderr]     Checking wgpu-hal v0.15.2
[INFO] [stderr]     Checking wgpu-core v0.15.1
[INFO] [stderr]     Checking wgpu v0.15.1
[INFO] [stderr]  Documenting ugrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![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 `ugrad`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name ugrad 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=40953114147a23ea -L dependency=/opt/rustwide/target/debug/deps --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-364c21ba0c7e4f22.rmeta --extern daggy=/opt/rustwide/target/debug/deps/libdaggy-5e3a50f4c3769fde.rmeta --extern defer=/opt/rustwide/target/debug/deps/libdefer-952569342dbea333.rmeta --extern derivative=/opt/rustwide/target/debug/deps/libderivative-05d6af37d57ef4e6.so --extern dot=/opt/rustwide/target/debug/deps/libdot-20b69caf87679fa0.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-777d3c10c8d39321.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-dd37fcbf4810fcb5.rmeta --extern futures_intrusive=/opt/rustwide/target/debug/deps/libfutures_intrusive-9fc099d8649b8b91.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-580de427d06c3762.rmeta --extern ndarray_rand=/opt/rustwide/target/debug/deps/libndarray_rand-34ce8cff6c648de1.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-f1a761b02491917a.rmeta --extern pollster=/opt/rustwide/target/debug/deps/libpollster-f2439c035242f973.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-5da9109b07d6d914.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-5a5f635c55084c91.rmeta --extern wgpu=/opt/rustwide/target/debug/deps/libwgpu-c9a214706ea7af18.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "69259d47b8772b6640cb4a568ee0be184e270ddb2867bdecb77b0709aa564c89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69259d47b8772b6640cb4a568ee0be184e270ddb2867bdecb77b0709aa564c89", kill_on_drop: false }`
[INFO] [stdout] 69259d47b8772b6640cb4a568ee0be184e270ddb2867bdecb77b0709aa564c89
