[INFO] fetching crate nt 3.0.0...
[INFO] testing nt-3.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nt 3.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nt 3.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7/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" "+1.55.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60059f6be3c2560ce2d2c9688abca03948ce48ebb2bf8f61b9da5e6e9c0753fc
[INFO] running `Command { std: "docker" "start" "-a" "60059f6be3c2560ce2d2c9688abca03948ce48ebb2bf8f61b9da5e6e9c0753fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60059f6be3c2560ce2d2c9688abca03948ce48ebb2bf8f61b9da5e6e9c0753fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60059f6be3c2560ce2d2c9688abca03948ce48ebb2bf8f61b9da5e6e9c0753fc", kill_on_drop: false }`
[INFO] [stdout] 60059f6be3c2560ce2d2c9688abca03948ce48ebb2bf8f61b9da5e6e9c0753fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e44e34059ee6ae7d1535133b9c7c84bdbe40ba08d0c52cef246d6b942e2f9fe5
[INFO] running `Command { std: "docker" "start" "-a" "e44e34059ee6ae7d1535133b9c7c84bdbe40ba08d0c52cef246d6b942e2f9fe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling nt-leb128 v0.3.1
[INFO] [stderr]    Compiling multimap v0.5.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling thiserror v1.0.14
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling nt-network v3.0.0
[INFO] [stderr]    Compiling nt v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.17s
[INFO] running `Command { std: "docker" "inspect" "e44e34059ee6ae7d1535133b9c7c84bdbe40ba08d0c52cef246d6b942e2f9fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44e34059ee6ae7d1535133b9c7c84bdbe40ba08d0c52cef246d6b942e2f9fe5", kill_on_drop: false }`
[INFO] [stdout] e44e34059ee6ae7d1535133b9c7c84bdbe40ba08d0c52cef246d6b942e2f9fe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2c325e24869ab57f4016cdfcd4fbca6b4cc5b260b74ab24d758e5d3fd367675
[INFO] running `Command { std: "docker" "start" "-a" "b2c325e24869ab57f4016cdfcd4fbca6b4cc5b260b74ab24d758e5d3fd367675", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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] [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] [stderr] error: could not compile `nt` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b2c325e24869ab57f4016cdfcd4fbca6b4cc5b260b74ab24d758e5d3fd367675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c325e24869ab57f4016cdfcd4fbca6b4cc5b260b74ab24d758e5d3fd367675", kill_on_drop: false }`
[INFO] [stdout] b2c325e24869ab57f4016cdfcd4fbca6b4cc5b260b74ab24d758e5d3fd367675