[INFO] fetching crate mcp2515 0.1.1...
[INFO] documenting mcp2515-0.1.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mcp2515 0.1.1 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate mcp2515 0.1.1 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 mcp2515 0.1.1
[INFO] finished tweaking crates.io crate mcp2515 0.1.1
[INFO] tweaked toml for crates.io crate mcp2515 0.1.1 written to /workspace/builds/worker-30/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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 3358baae4596b32a238e2f23113356db192458460a67390f8d44111d69379be6
[INFO] running `Command { std: "docker" "start" "-a" "3358baae4596b32a238e2f23113356db192458460a67390f8d44111d69379be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3358baae4596b32a238e2f23113356db192458460a67390f8d44111d69379be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3358baae4596b32a238e2f23113356db192458460a67390f8d44111d69379be6", kill_on_drop: false }`
[INFO] [stdout] 3358baae4596b32a238e2f23113356db192458460a67390f8d44111d69379be6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 50fef66013ae46cdc28700b91ae7beb9f329821393a2c0da9b936b2f24ff8cce
[INFO] running `Command { std: "docker" "start" "-a" "50fef66013ae46cdc28700b91ae7beb9f329821393a2c0da9b936b2f24ff8cce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]  Documenting mcp2515 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]   --> src/buffer.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// Tx buffer identification register.
[INFO] [stdout]    | ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 12 - /// Tx buffer identification register.
[INFO] [stdout] 12 + /// Tx buffer identification register.
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]   --> src/buffer.rs:93:1
[INFO] [stdout]    |
[INFO] [stdout] 93 | /// Rx buffer identification register.
[INFO] [stdout]    | ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 93 - /// Rx buffer identification register.
[INFO] [stdout] 93 + /// Rx buffer identification register.
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]  --> src/filter.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | /// Filter register.
[INFO] [stdout]   | ^                   ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout] 6 - /// Filter register.
[INFO] [stdout] 6 + /// Filter register.
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]   --> src/filter.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | /// Mask register.
[INFO] [stdout]    | ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 46 - /// Mask register.
[INFO] [stdout] 46 + /// Mask register.
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `set_mode`
[INFO] [stdout]    --> src/lib.rs:354:38
[INFO] [stdout]     |
[INFO] [stdout] 354 |     /// sleep mode. Otherwise, use [`set_mode`].
[INFO] [stdout]     |                                      ^^^^^^^^ no item named `set_mode` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `Command { std: "docker" "inspect" "50fef66013ae46cdc28700b91ae7beb9f329821393a2c0da9b936b2f24ff8cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50fef66013ae46cdc28700b91ae7beb9f329821393a2c0da9b936b2f24ff8cce", kill_on_drop: false }`
[INFO] [stdout] 50fef66013ae46cdc28700b91ae7beb9f329821393a2c0da9b936b2f24ff8cce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8e05f3daeb0fc2fccf640743738046fcbea2d3c1b3dfdc7d1b7ed34ed4a024de
[INFO] running `Command { std: "docker" "start" "-a" "8e05f3daeb0fc2fccf640743738046fcbea2d3c1b3dfdc7d1b7ed34ed4a024de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]  Documenting mcp2515 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `set_mode`
[INFO] [stdout]    --> src/lib.rs:354:38
[INFO] [stdout]     |
[INFO] [stdout] 354 |     /// sleep mode. Otherwise, use [`set_mode`].
[INFO] [stdout]     |                                      ^^^^^^^^ no item named `set_mode` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `Command { std: "docker" "inspect" "8e05f3daeb0fc2fccf640743738046fcbea2d3c1b3dfdc7d1b7ed34ed4a024de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e05f3daeb0fc2fccf640743738046fcbea2d3c1b3dfdc7d1b7ed34ed4a024de", kill_on_drop: false }`
[INFO] [stdout] 8e05f3daeb0fc2fccf640743738046fcbea2d3c1b3dfdc7d1b7ed34ed4a024de