[INFO] fetching crate actors 0.1.0...
[INFO] documenting actors-0.1.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate actors 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate actors 0.1.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actors 0.1.0
[INFO] finished tweaking crates.io crate actors 0.1.0
[INFO] tweaked toml for crates.io crate actors 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3c7a8caccf3aa9ec8c02c1fe831fe158011ce9f76cf6be46947485ffc72d8ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d3c7a8caccf3aa9ec8c02c1fe831fe158011ce9f76cf6be46947485ffc72d8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3c7a8caccf3aa9ec8c02c1fe831fe158011ce9f76cf6be46947485ffc72d8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c7a8caccf3aa9ec8c02c1fe831fe158011ce9f76cf6be46947485ffc72d8ef", kill_on_drop: false }`
[INFO] [stdout] d3c7a8caccf3aa9ec8c02c1fe831fe158011ce9f76cf6be46947485ffc72d8ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e565f8c98f45c8532abfc659923e37b0a6250b41a3e445a4573fc1db2f00fef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e565f8c98f45c8532abfc659923e37b0a6250b41a3e445a4573fc1db2f00fef", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]  Documenting actors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Message` cannot be sent between threads safely
[INFO] [stdout]   --> src/channel/mod.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message, A: Actor<Message>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ `Message` cannot be sent between threads safely
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Actor<Message: Send>: Send {
[INFO] [stdout]    |                          ---- required by this bound in `Actor`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Send` is not implemented for `Message`
[INFO] [stdout] help: consider restricting type parameter `Message`
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message: std::marker::Send, A: Actor<Message>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `actors`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name actors 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` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "8e565f8c98f45c8532abfc659923e37b0a6250b41a3e445a4573fc1db2f00fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e565f8c98f45c8532abfc659923e37b0a6250b41a3e445a4573fc1db2f00fef", kill_on_drop: false }`
[INFO] [stdout] 8e565f8c98f45c8532abfc659923e37b0a6250b41a3e445a4573fc1db2f00fef