[INFO] fetching crate neovim-lib 0.6.1...
[INFO] checking neovim-lib-0.6.1 against beta for pr-78714
[INFO] extracting crate neovim-lib 0.6.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate neovim-lib 0.6.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neovim-lib 0.6.1
[INFO] finished tweaking crates.io crate neovim-lib 0.6.1
[INFO] tweaked toml for crates.io crate neovim-lib 0.6.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8ae7b4ff2cd787e8e6832533f5e83561ddc79ca70a0e39cc47d5e39b11d1816
[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" "d8ae7b4ff2cd787e8e6832533f5e83561ddc79ca70a0e39cc47d5e39b11d1816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8ae7b4ff2cd787e8e6832533f5e83561ddc79ca70a0e39cc47d5e39b11d1816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ae7b4ff2cd787e8e6832533f5e83561ddc79ca70a0e39cc47d5e39b11d1816", kill_on_drop: false }`
[INFO] [stdout] d8ae7b4ff2cd787e8e6832533f5e83561ddc79ca70a0e39cc47d5e39b11d1816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f5576d9c2c2ea5dd9a1e48c328ea78cbd4b4a24dabc1ad8ce2d8b47eda06dcb
[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" "1f5576d9c2c2ea5dd9a1e48c328ea78cbd4b4a24dabc1ad8ce2d8b47eda06dcb", kill_on_drop: false }`
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking rmpv v0.4.5
[INFO] [stderr]     Checking neovim-lib v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rpc/client.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Callback = Box<FnMut(Result<Value, Value>) + Send + 'static>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<Value, Value>) + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rpc/client.rs:215:55
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn send_error_to_callers(queue: &Queue, err: &Box<Error>) {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rpc/model.rs:66:66
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn decode<R: Read>(reader: &mut R) -> Result<RpcMessage, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rpc/model.rs:105:76
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn encode<W: Write>(writer: &mut W, msg: RpcMessage) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/async.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     cb: Option<Box<FnMut(Result<Value, Value>) + Send + 'static>>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<Value, Value>) + Send + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rpc/client.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Callback = Box<FnMut(Result<Value, Value>) + Send + 'static>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<Value, Value>) + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rpc/client.rs:215:55
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn send_error_to_callers(queue: &Queue, err: &Box<Error>) {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rpc/model.rs:66:66
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn decode<R: Read>(reader: &mut R) -> Result<RpcMessage, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rpc/model.rs:105:76
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn encode<W: Write>(writer: &mut W, msg: RpcMessage) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/async.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     cb: Option<Box<FnMut(Result<Value, Value>) + Send + 'static>>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<Value, Value>) + Send + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "1f5576d9c2c2ea5dd9a1e48c328ea78cbd4b4a24dabc1ad8ce2d8b47eda06dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5576d9c2c2ea5dd9a1e48c328ea78cbd4b4a24dabc1ad8ce2d8b47eda06dcb", kill_on_drop: false }`
[INFO] [stdout] 1f5576d9c2c2ea5dd9a1e48c328ea78cbd4b4a24dabc1ad8ce2d8b47eda06dcb