[INFO] fetching crate jack-client 0.1.2...
[INFO] checking jack-client-0.1.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate jack-client 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate jack-client 0.1.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jack-client 0.1.2
[INFO] finished tweaking crates.io crate jack-client 0.1.2
[INFO] tweaked toml for crates.io crate jack-client 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jack-sys v0.1.5
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f025d355ae466832810c0522132ce220137d3f8b7f7eb5e57ee307d5d8f2e95
[INFO] running `Command { std: "docker" "start" "-a" "1f025d355ae466832810c0522132ce220137d3f8b7f7eb5e57ee307d5d8f2e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f025d355ae466832810c0522132ce220137d3f8b7f7eb5e57ee307d5d8f2e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f025d355ae466832810c0522132ce220137d3f8b7f7eb5e57ee307d5d8f2e95", kill_on_drop: false }`
[INFO] [stdout] 1f025d355ae466832810c0522132ce220137d3f8b7f7eb5e57ee307d5d8f2e95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12c1a1c9612c56b07c1c1fc8c07d73bba0a0a9670307dc861c07521ef5a547da
[INFO] running `Command { std: "docker" "start" "-a" "12c1a1c9612c56b07c1c1fc8c07d73bba0a0a9670307dc861c07521ef5a547da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking jack-sys v0.1.5
[INFO] [stderr]     Checking jack-client v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/client.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackControl`
[INFO] [stdout]   --> src/client.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use callbacks::{JackControl, JackHandler, register_callbacks};
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackErr`
[INFO] [stdout]   --> src/client.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use error::{ClientStatus, JackErr};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/client.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::JackClient`
[INFO] [stdout]  --> src/port.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use client::JackClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackControl`
[INFO] [stdout]   --> src/client.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use callbacks::{JackControl, JackHandler, register_callbacks};
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackErr`
[INFO] [stdout]   --> src/client.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use error::{ClientStatus, JackErr};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::JackClient`
[INFO] [stdout]  --> src/port.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use client::JackClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn activate(&mut self, mut handler_obj: T) -> Result<*mut T, ()> {
[INFO] [stdout]     |                                ----^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn activate(&mut self, mut handler_obj: T) -> Result<*mut T, ()> {
[INFO] [stdout]     |                                ----^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/port.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Err(e) => panic!("..")
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/port.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Err(e) => panic!("..")
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/callbacks.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn activated<T: JackHandler>(&mut self, client: &mut JackClient<T>) {}
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/callbacks.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]   --> src/callbacks.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_frames`
[INFO] [stdout]   --> src/callbacks.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn process(&mut self, n_frames:u32 ) -> JackControl {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_frames`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/callbacks.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn activated<T: JackHandler>(&mut self, client: &mut JackClient<T>) {}
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_freewheel_enabled`
[INFO] [stdout]   --> src/callbacks.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn freewheel(&mut self, is_freewheel_enabled: bool) {}
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_freewheel_enabled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/callbacks.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn buffer_size(&mut self, size: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/callbacks.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]   --> src/callbacks.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/callbacks.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn sample_rate(&mut self, sample_rate: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/callbacks.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_frames`
[INFO] [stdout]   --> src/callbacks.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn process(&mut self, n_frames:u32 ) -> JackControl {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_frames`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_name`
[INFO] [stdout]   --> src/callbacks.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_name`
[INFO] [stdout]   --> src/callbacks.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_ida`
[INFO] [stdout]   --> src/callbacks.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_ida`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_idb`
[INFO] [stdout]   --> src/callbacks.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_idb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `are_connected`
[INFO] [stdout]   --> src/callbacks.rs:45:65
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_are_connected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_freewheel_enabled`
[INFO] [stdout]   --> src/callbacks.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn freewheel(&mut self, is_freewheel_enabled: bool) {}
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_freewheel_enabled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/callbacks.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn buffer_size(&mut self, size: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/callbacks.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn sample_rate(&mut self, sample_rate: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/callbacks.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_name`
[INFO] [stdout]   --> src/callbacks.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_name`
[INFO] [stdout]   --> src/callbacks.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_ida`
[INFO] [stdout]   --> src/callbacks.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_ida`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_idb`
[INFO] [stdout]   --> src/callbacks.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_idb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `are_connected`
[INFO] [stdout]   --> src/callbacks.rs:45:65
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_are_connected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jack-client` (lib) due to 2 previous errors; 25 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `jack-client` (lib test) due to 2 previous errors; 25 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "12c1a1c9612c56b07c1c1fc8c07d73bba0a0a9670307dc861c07521ef5a547da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c1a1c9612c56b07c1c1fc8c07d73bba0a0a9670307dc861c07521ef5a547da", kill_on_drop: false }`
[INFO] [stdout] 12c1a1c9612c56b07c1c1fc8c07d73bba0a0a9670307dc861c07521ef5a547da
[INFO] checking jack-client-0.1.2 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate jack-client 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate jack-client 0.1.2 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jack-client 0.1.2
[INFO] finished tweaking crates.io crate jack-client 0.1.2
[INFO] tweaked toml for crates.io crate jack-client 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84f70e1ddfdec8c878c4e7dc73849d6145973fb5bb4259876dbb76a54f0ae629
[INFO] running `Command { std: "docker" "start" "-a" "84f70e1ddfdec8c878c4e7dc73849d6145973fb5bb4259876dbb76a54f0ae629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84f70e1ddfdec8c878c4e7dc73849d6145973fb5bb4259876dbb76a54f0ae629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f70e1ddfdec8c878c4e7dc73849d6145973fb5bb4259876dbb76a54f0ae629", kill_on_drop: false }`
[INFO] [stdout] 84f70e1ddfdec8c878c4e7dc73849d6145973fb5bb4259876dbb76a54f0ae629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78d650474bfcb181c439d7e5d5a0e7cd0c75ce2f7532b0aebbc92e80da84e160
[INFO] running `Command { std: "docker" "start" "-a" "78d650474bfcb181c439d7e5d5a0e7cd0c75ce2f7532b0aebbc92e80da84e160", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking jack-sys v0.1.5
[INFO] [stderr]     Checking jack-client v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/client.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackControl`
[INFO] [stdout]   --> src/client.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use callbacks::{JackControl, JackHandler, register_callbacks};
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackErr`
[INFO] [stdout]   --> src/client.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use error::{ClientStatus, JackErr};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::JackClient`
[INFO] [stdout]  --> src/port.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use client::JackClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/client.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackControl`
[INFO] [stdout]   --> src/client.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use callbacks::{JackControl, JackHandler, register_callbacks};
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JackErr`
[INFO] [stdout]   --> src/client.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use error::{ClientStatus, JackErr};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::JackClient`
[INFO] [stdout]  --> src/port.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use client::JackClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn activate(&mut self, mut handler_obj: T) -> Result<*mut T, ()> {
[INFO] [stdout]     |                                ----^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn activate(&mut self, mut handler_obj: T) -> Result<*mut T, ()> {
[INFO] [stdout]     |                                ----^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/port.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Err(e) => panic!("..")
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/callbacks.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn activated<T: JackHandler>(&mut self, client: &mut JackClient<T>) {}
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/callbacks.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/port.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Err(e) => panic!("..")
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]   --> src/callbacks.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_frames`
[INFO] [stdout]   --> src/callbacks.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn process(&mut self, n_frames:u32 ) -> JackControl {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_frames`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_freewheel_enabled`
[INFO] [stdout]   --> src/callbacks.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn freewheel(&mut self, is_freewheel_enabled: bool) {}
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_freewheel_enabled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/callbacks.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn buffer_size(&mut self, size: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/callbacks.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn sample_rate(&mut self, sample_rate: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/callbacks.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_name`
[INFO] [stdout]   --> src/callbacks.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_name`
[INFO] [stdout]   --> src/callbacks.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_ida`
[INFO] [stdout]   --> src/callbacks.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_ida`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_idb`
[INFO] [stdout]   --> src/callbacks.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_idb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `are_connected`
[INFO] [stdout]   --> src/callbacks.rs:45:65
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_are_connected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/callbacks.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn activated<T: JackHandler>(&mut self, client: &mut JackClient<T>) {}
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/callbacks.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]   --> src/callbacks.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn shutdown(&mut self, status: ClientStatus, reason: &str) {}
[INFO] [stdout]    |                                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_frames`
[INFO] [stdout]   --> src/callbacks.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn process(&mut self, n_frames:u32 ) -> JackControl {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_frames`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_freewheel_enabled`
[INFO] [stdout]   --> src/callbacks.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn freewheel(&mut self, is_freewheel_enabled: bool) {}
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_freewheel_enabled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/callbacks.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn buffer_size(&mut self, size: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/callbacks.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn sample_rate(&mut self, sample_rate: u32) -> JackControl
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/callbacks.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn client_registration(&mut self, name: &str, is_registered: bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_registered`
[INFO] [stdout]   --> src/callbacks.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn port_registration(&mut self, port_id: u32, is_registered:bool) {}
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_registered`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_id`
[INFO] [stdout]   --> src/callbacks.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_name`
[INFO] [stdout]   --> src/callbacks.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_name`
[INFO] [stdout]   --> src/callbacks.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn port_rename(&mut self, port_id: u32, old_name: &str, new_name: &str) -> JackControl {
[INFO] [stdout]    |                                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_ida`
[INFO] [stdout]   --> src/callbacks.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_ida`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port_idb`
[INFO] [stdout]   --> src/callbacks.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_port_idb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `are_connected`
[INFO] [stdout]   --> src/callbacks.rs:45:65
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn ports_connected(&mut self, port_ida: u32, port_idb: u32, are_connected: bool) {}
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_are_connected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jack-client` (lib test) due to 2 previous errors; 25 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `jack-client` (lib) due to 2 previous errors; 25 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "78d650474bfcb181c439d7e5d5a0e7cd0c75ce2f7532b0aebbc92e80da84e160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d650474bfcb181c439d7e5d5a0e7cd0c75ce2f7532b0aebbc92e80da84e160", kill_on_drop: false }`
[INFO] [stdout] 78d650474bfcb181c439d7e5d5a0e7cd0c75ce2f7532b0aebbc92e80da84e160
