[INFO] fetching crate emitter 0.0.1...
[INFO] documenting emitter-0.0.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate emitter 0.0.1 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate emitter 0.0.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emitter 0.0.1
[INFO] finished tweaking crates.io crate emitter 0.0.1
[INFO] tweaked toml for crates.io crate emitter 0.0.1 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc93f8fd038336171e31e1e2738ec743266013d9c81fccb06e10903cdf062e42
[INFO] running `Command { std: "docker" "start" "-a" "bc93f8fd038336171e31e1e2738ec743266013d9c81fccb06e10903cdf062e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc93f8fd038336171e31e1e2738ec743266013d9c81fccb06e10903cdf062e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc93f8fd038336171e31e1e2738ec743266013d9c81fccb06e10903cdf062e42", kill_on_drop: false }`
[INFO] [stdout] bc93f8fd038336171e31e1e2738ec743266013d9c81fccb06e10903cdf062e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 689d13e7806071dcaaddaf38d04430a7b980735d200d4d93b45ba8fe20427ba9
[INFO] running `Command { std: "docker" "start" "-a" "689d13e7806071dcaaddaf38d04430a7b980735d200d4d93b45ba8fe20427ba9", kill_on_drop: false }`
[INFO] [stderr]  Documenting emitter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `:`, `=`, or `>`, found `?`
[INFO] [stdout]   --> src/lib.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Event<Sized? X>: 'static {}
[INFO] [stdout]    |                      ^ expected one of `,`, `:`, `=`, or `>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `emitter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name emitter src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "689d13e7806071dcaaddaf38d04430a7b980735d200d4d93b45ba8fe20427ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689d13e7806071dcaaddaf38d04430a7b980735d200d4d93b45ba8fe20427ba9", kill_on_drop: false }`
[INFO] [stdout] 689d13e7806071dcaaddaf38d04430a7b980735d200d4d93b45ba8fe20427ba9
