[INFO] cloning repository https://github.com/bschwind/mqtt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bschwind/mqtt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbschwind%2Fmqtt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbschwind%2Fmqtt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36acbe04a81231bfb4c7c24fe654bb7d2b7fd7da
[INFO] documenting bschwind/mqtt against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbschwind%2Fmqtt" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bschwind/mqtt 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 git repo https://github.com/bschwind/mqtt
[INFO] finished tweaking git repo https://github.com/bschwind/mqtt
[INFO] tweaked toml for git repo https://github.com/bschwind/mqtt written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/bschwind/mqtt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 7edc5233f83ebd2e930073a289be2dc1df8a0305def3c6307505c2083005ef63
[INFO] running `Command { std: "docker" "start" "-a" "7edc5233f83ebd2e930073a289be2dc1df8a0305def3c6307505c2083005ef63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7edc5233f83ebd2e930073a289be2dc1df8a0305def3c6307505c2083005ef63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7edc5233f83ebd2e930073a289be2dc1df8a0305def3c6307505c2083005ef63", kill_on_drop: false }`
[INFO] [stdout] 7edc5233f83ebd2e930073a289be2dc1df8a0305def3c6307505c2083005ef63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] c17a1aa01804244709502f521d5b625d5394a1d81e0eb6e578859d201bcb2d39
[INFO] running `Command { std: "docker" "start" "-a" "c17a1aa01804244709502f521d5b625d5394a1d81e0eb6e578859d201bcb2d39", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking libc v0.2.15
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking mio v0.6.0
[INFO] [stderr]  Documenting mqtt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/protocol/control_packet_type.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 |     type Err = MqttParseError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/parser.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 |         match ControlPacketType::try_from(((first_byte & 0b11110000) >> 4)) {
[INFO] [stdout]    |                                           ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -         match ControlPacketType::try_from(((first_byte & 0b11110000) >> 4)) {
[INFO] [stdout] 16 +         match ControlPacketType::try_from((first_byte & 0b11110000) >> 4) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0437`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mqtt`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name mqtt 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=48d4ff1f2947a86f -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-c7b312cc11ed2c0c.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-d016f8d01250e7ea.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-8401690e4be380b9.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-02fcfea34efa0a23.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c17a1aa01804244709502f521d5b625d5394a1d81e0eb6e578859d201bcb2d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c17a1aa01804244709502f521d5b625d5394a1d81e0eb6e578859d201bcb2d39", kill_on_drop: false }`
[INFO] [stdout] c17a1aa01804244709502f521d5b625d5394a1d81e0eb6e578859d201bcb2d39