[INFO] fetching crate intiface-cli 18.0.0...
[INFO] checking intiface-cli-18.0.0 against master#2e5723137b2b88368d018b262a0a823a1423131b for pr-78935-1
[INFO] extracting crate intiface-cli 18.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate intiface-cli 18.0.0 on toolchain 2e5723137b2b88368d018b262a0a823a1423131b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate intiface-cli 18.0.0
[INFO] finished tweaking crates.io crate intiface-cli 18.0.0
[INFO] tweaked toml for crates.io crate intiface-cli 18.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate intiface-cli 18.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+2e5723137b2b88368d018b262a0a823a1423131b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4ac0858de331bed0ada3691afb66a8b266224a8bc71645cb73307c659d857a2
[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" "e4ac0858de331bed0ada3691afb66a8b266224a8bc71645cb73307c659d857a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4ac0858de331bed0ada3691afb66a8b266224a8bc71645cb73307c659d857a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ac0858de331bed0ada3691afb66a8b266224a8bc71645cb73307c659d857a2", kill_on_drop: false }`
[INFO] [stdout] e4ac0858de331bed0ada3691afb66a8b266224a8bc71645cb73307c659d857a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+2e5723137b2b88368d018b262a0a823a1423131b" "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] 79781dd593bd8fa0ca31166cef6614a74ade4315c279348d2acfb239f7c3f93a
[INFO] running `Command { std: "docker" "start" "-a" "79781dd593bd8fa0ca31166cef6614a74ade4315c279348d2acfb239f7c3f93a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling intiface-cli v18.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking async-tungstenite v0.10.0
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[INFO] [stderr]     Checking buttplug v0.11.1
[INFO] [stdout] warning: unused variable: `out_msg`
[INFO] [stdout]   --> src/frontend.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |               let out_msg = ServerProcessMessage::decode_length_delimited(&stdin_buf[0..size]);
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/frontend.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Err(err) => break,
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `incoming_sender`
[INFO] [stdout]   --> src/frontend.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |   let (incoming_sender, incoming_receiver) = bounded::<ServerControlMessage>(256);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_incoming_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_msg`
[INFO] [stdout]   --> src/frontend.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |               let out_msg = ServerProcessMessage::decode_length_delimited(&stdin_buf[0..size]);
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/frontend.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Err(err) => break,
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `incoming_sender`
[INFO] [stdout]   --> src/frontend.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |   let (incoming_sender, incoming_receiver) = bounded::<ServerControlMessage>(256);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_incoming_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/frontend.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     self.sender.send(server_msg).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/frontend.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     self.sender.send(server_msg).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 19s
[INFO] running `Command { std: "docker" "inspect" "79781dd593bd8fa0ca31166cef6614a74ade4315c279348d2acfb239f7c3f93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79781dd593bd8fa0ca31166cef6614a74ade4315c279348d2acfb239f7c3f93a", kill_on_drop: false }`
[INFO] [stdout] 79781dd593bd8fa0ca31166cef6614a74ade4315c279348d2acfb239f7c3f93a