[INFO] fetching crate panduck-latex 0.1.0...
[INFO] documenting panduck-latex-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate panduck-latex 0.1.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate panduck-latex 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 panduck-latex 0.1.0
[INFO] finished tweaking crates.io crate panduck-latex 0.1.0
[INFO] tweaked toml for crates.io crate panduck-latex 0.1.0 written to /workspace/builds/worker-33/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] f801fa9bfed563d75be3ca57f20b06dea2cb3351702d5e73f2808f134c57ac0a
[INFO] running `Command { std: "docker" "start" "-a" "f801fa9bfed563d75be3ca57f20b06dea2cb3351702d5e73f2808f134c57ac0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f801fa9bfed563d75be3ca57f20b06dea2cb3351702d5e73f2808f134c57ac0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f801fa9bfed563d75be3ca57f20b06dea2cb3351702d5e73f2808f134c57ac0a", kill_on_drop: false }`
[INFO] [stdout] f801fa9bfed563d75be3ca57f20b06dea2cb3351702d5e73f2808f134c57ac0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] b55d704a601ce062c3bb2ad6504c9452163552ab3f09630de3cf15c83248880a
[INFO] running `Command { std: "docker" "start" "-a" "b55d704a601ce062c3bb2ad6504c9452163552ab3f09630de3cf15c83248880a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling pkg-config v0.3.25
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[INFO] [stderr]     Checking tinyvec_macros v0.1.0
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[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.81
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[INFO] [stderr]    Compiling futures-task v0.3.21
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[INFO] [stderr]    Compiling num-bigint v0.4.3
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[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.137
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[INFO] [stderr]     Checking async-io v1.7.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]     Checking panduck-pp v0.2.0
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking async-global-executor v2.1.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking async-std v1.11.0
[INFO] [stderr]     Checking text-utils v0.4.3
[INFO] [stderr]     Checking tokio-util v0.7.2
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking lsp-types v0.91.1
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking lsp-document v0.4.0
[INFO] [stderr]     Checking yggdrasil-shared v0.1.9
[INFO] [stderr]     Checking notedown-error v1.1.5
[INFO] [stderr]     Checking notedown_ast v0.16.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/notedown_ast-0.16.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/notedown_ast-0.16.2/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/notedown_ast-0.16.2/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(arbitrary_enum_discriminant)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/notedown_ast-0.16.2/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `notedown_ast` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "b55d704a601ce062c3bb2ad6504c9452163552ab3f09630de3cf15c83248880a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b55d704a601ce062c3bb2ad6504c9452163552ab3f09630de3cf15c83248880a", kill_on_drop: false }`
[INFO] [stdout] b55d704a601ce062c3bb2ad6504c9452163552ab3f09630de3cf15c83248880a