[INFO] fetching crate nt 3.0.0...
[INFO] checking nt-3.0.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate nt 3.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nt 3.0.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-1/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nt-network v3.0.0
[INFO] [stderr]   Downloaded futures-executor v0.3.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.14
[INFO] [stderr]   Downloaded multimap v0.5.0
[INFO] [stderr]   Downloaded futures-macro v0.3.1
[INFO] [stderr]   Downloaded tungstenite v0.10.0
[INFO] [stderr]   Downloaded futures v0.3.1
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded tokio-tungstenite v0.10.0
[INFO] [stderr]   Downloaded thiserror v1.0.14
[INFO] [stderr]   Downloaded futures-io v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 022ec7f5a8d6086fae5d4143f8c1691a82e5cdfeeca014a328af0c05e2660d7c
[INFO] running `Command { std: "docker" "start" "-a" "022ec7f5a8d6086fae5d4143f8c1691a82e5cdfeeca014a328af0c05e2660d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "022ec7f5a8d6086fae5d4143f8c1691a82e5cdfeeca014a328af0c05e2660d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022ec7f5a8d6086fae5d4143f8c1691a82e5cdfeeca014a328af0c05e2660d7c", kill_on_drop: false }`
[INFO] [stdout] 022ec7f5a8d6086fae5d4143f8c1691a82e5cdfeeca014a328af0c05e2660d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1dd266eadb9421679a7f2276a735ec53e8bad481ff6238c8ad380be81684dfde
[INFO] running `Command { std: "docker" "start" "-a" "1dd266eadb9421679a7f2276a735ec53e8bad481ff6238c8ad380be81684dfde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking nt-leb128 v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking multimap v0.5.0
[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]     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: unused implementer of `std::future::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] warning: 1 warning emitted
[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_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] [stderr] error: could not compile `nt`.
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[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_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: build failed
[INFO] running `Command { std: "docker" "inspect" "1dd266eadb9421679a7f2276a735ec53e8bad481ff6238c8ad380be81684dfde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd266eadb9421679a7f2276a735ec53e8bad481ff6238c8ad380be81684dfde", kill_on_drop: false }`
[INFO] [stdout] 1dd266eadb9421679a7f2276a735ec53e8bad481ff6238c8ad380be81684dfde