[INFO] fetching crate intiface-cli 14.0.0...
[INFO] checking intiface-cli-14.0.0 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate intiface-cli 14.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate intiface-cli 14.0.0 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking crates.io crate intiface-cli 14.0.0
[INFO] finished tweaking crates.io crate intiface-cli 14.0.0
[INFO] tweaked toml for crates.io crate intiface-cli 14.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate intiface-cli 14.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6893adc4278424fedff676e5281a43052501d0b9cea6f1200bd2f84ee8b48b8a
[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" "6893adc4278424fedff676e5281a43052501d0b9cea6f1200bd2f84ee8b48b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6893adc4278424fedff676e5281a43052501d0b9cea6f1200bd2f84ee8b48b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6893adc4278424fedff676e5281a43052501d0b9cea6f1200bd2f84ee8b48b8a", kill_on_drop: false }`
[INFO] [stdout] 6893adc4278424fedff676e5281a43052501d0b9cea6f1200bd2f84ee8b48b8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6057d10b75a0b01ae3f3481480263c8bf305ce13948b6f40a1d04d75875e06f2
[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" "6057d10b75a0b01ae3f3481480263c8bf305ce13948b6f40a1d04d75875e06f2", kill_on_drop: false }`
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[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking async-tls v0.9.0
[INFO] [stderr]    Compiling intiface-cli v14.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-tungstenite v0.8.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking btleplug v0.5.3
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[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |       _ => {
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `incoming_sender`
[INFO] [stdout]   --> src/frontend.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |   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]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |       _ => {
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `incoming_sender`
[INFO] [stdout]   --> src/frontend.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |   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]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_receiver`
[INFO] [stdout]   --> src/frontend.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn get_receiver(&self) -> Receiver<ServerControlMessage> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_receiver`
[INFO] [stdout]   --> src/frontend.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn get_receiver(&self) -> Receiver<ServerControlMessage> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/frontend.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     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:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     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 3m 13s
[INFO] running `Command { std: "docker" "inspect" "6057d10b75a0b01ae3f3481480263c8bf305ce13948b6f40a1d04d75875e06f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6057d10b75a0b01ae3f3481480263c8bf305ce13948b6f40a1d04d75875e06f2", kill_on_drop: false }`
[INFO] [stdout] 6057d10b75a0b01ae3f3481480263c8bf305ce13948b6f40a1d04d75875e06f2