[INFO] fetching crate nt 3.0.0...
[INFO] checking nt-3.0.0 against beta for pr-78714
[INFO] extracting crate nt 3.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate nt 3.0.0 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 nt 3.0.0
[INFO] finished tweaking crates.io crate nt 3.0.0
[INFO] tweaked toml for crates.io crate nt 3.0.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate nt 3.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 45f24123df96631b2b5476b97fe33dba615bb4e55da1cd5151365328fae0f8ec
[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" "45f24123df96631b2b5476b97fe33dba615bb4e55da1cd5151365328fae0f8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f24123df96631b2b5476b97fe33dba615bb4e55da1cd5151365328fae0f8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f24123df96631b2b5476b97fe33dba615bb4e55da1cd5151365328fae0f8ec", kill_on_drop: false }`
[INFO] [stdout] 45f24123df96631b2b5476b97fe33dba615bb4e55da1cd5151365328fae0f8ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f81ffe8a455913b6a9d9dc62d02978dd6c4133037c421c781eef8961c9324f74
[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" "f81ffe8a455913b6a9d9dc62d02978dd6c4133037c421c781eef8961c9324f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking nt-leb128 v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking multimap v0.5.0
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.14
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking thiserror v1.0.14
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking nt-network v3.0.0
[INFO] [stderr]     Checking nt v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> examples/read.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     loop {}
[INFO] [stdout]    |     ------- any code following this expression is unreachable
[INFO] [stdout] 17 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `connect_ws` found for struct `nt::NetworkTables<_>` in the current scope
[INFO] [stdout]  --> examples/ws_rpc_client.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut nt = NetworkTables::connect_ws("ws://127.0.0.1:1735", "nt-ws").await?;
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 function or associated item not found in `nt::NetworkTables<_>`
[INFO] [stdout]   |                                 help: there is an associated function with a similar name: `connect`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Future` that must be used
[INFO] [stdout]   --> examples/write.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     client.create_entry(EntryData::new(
[INFO] [stdout] 8  | |         "newEntry".to_string(),
[INFO] [stdout] 9  | |         0,
[INFO] [stdout] 10 | |         EntryValue::Double(5.0),
[INFO] [stdout] 11 | |     ));
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `connect_ws` found for struct `nt::NetworkTables<_>` in the current scope
[INFO] [stdout]  --> examples/ws_client.rs:5:33
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut nt = NetworkTables::connect_ws("ws://127.0.0.1:1735", "nt-ws")
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 function or associated item not found in `nt::NetworkTables<_>`
[INFO] [stdout]   |                                 help: there is an associated function with a similar name: `connect`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f81ffe8a455913b6a9d9dc62d02978dd6c4133037c421c781eef8961c9324f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f81ffe8a455913b6a9d9dc62d02978dd6c4133037c421c781eef8961c9324f74", kill_on_drop: false }`
[INFO] [stdout] f81ffe8a455913b6a9d9dc62d02978dd6c4133037c421c781eef8961c9324f74