[INFO] fetching crate hacspec 0.2.0-beta.4...
[INFO] documenting hacspec-0.2.0-beta.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate hacspec 0.2.0-beta.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hacspec 0.2.0-beta.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking crates.io crate hacspec 0.2.0-beta.4
[INFO] finished tweaking crates.io crate hacspec 0.2.0-beta.4
[INFO] tweaked toml for crates.io crate hacspec 0.2.0-beta.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate hacspec 0.2.0-beta.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sized-chunks v0.6.4
[INFO] [stderr]   Downloaded pretty v0.10.0
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8676e40a86a5784133200a45daffd4576795b908d918f0f5e0524bb11b69b80c
[INFO] running `Command { std: "docker" "start" "-a" "8676e40a86a5784133200a45daffd4576795b908d918f0f5e0524bb11b69b80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8676e40a86a5784133200a45daffd4576795b908d918f0f5e0524bb11b69b80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8676e40a86a5784133200a45daffd4576795b908d918f0f5e0524bb11b69b80c", kill_on_drop: false }`
[INFO] [stdout] 8676e40a86a5784133200a45daffd4576795b908d918f0f5e0524bb11b69b80c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8726cf7cc6aae3a0571c1527dc2413f4eae3ff0b790351beff249635c508163
[INFO] running `Command { std: "docker" "start" "-a" "f8726cf7cc6aae3a0571c1527dc2413f4eae3ff0b790351beff249635c508163", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking sized-chunks v0.6.4
[INFO] [stderr]     Checking hacspec-util v0.1.0-beta.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]  Documenting hacspec v0.2.0-beta.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate rustc_ast;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `hacspec`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name hacspec_driver src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern hacspec_util=/opt/rustwide/target/debug/deps/libhacspec_util-ee918f3f2d2e6c20.rmeta --extern heck=/opt/rustwide/target/debug/deps/libheck-4ddce7c17d2fceec.rmeta --extern im=/opt/rustwide/target/debug/deps/libim-3ba48e08a7ea55b7.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0219993a3d642127.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern pretty=/opt/rustwide/target/debug/deps/libpretty-abd7af17743427ad.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c6ee4927d0792347.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-56fe673d2da40878.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-29f7018a085a0027.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-13b8c5703ff5c619.rmeta --cap-lints=warn --crate-version 0.2.0-beta.4` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f8726cf7cc6aae3a0571c1527dc2413f4eae3ff0b790351beff249635c508163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8726cf7cc6aae3a0571c1527dc2413f4eae3ff0b790351beff249635c508163", kill_on_drop: false }`
[INFO] [stdout] f8726cf7cc6aae3a0571c1527dc2413f4eae3ff0b790351beff249635c508163
