[INFO] cloning repository https://github.com/lautis/nad-volume-sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lautis/nad-volume-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flautis%2Fnad-volume-sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flautis%2Fnad-volume-sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9feed935983bf2b1a546bb68a1bd4aca83ae3e06
[INFO] checking lautis/nad-volume-sync against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flautis%2Fnad-volume-sync" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lautis/nad-volume-sync 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 git repo https://github.com/lautis/nad-volume-sync
[INFO] finished tweaking git repo https://github.com/lautis/nad-volume-sync
[INFO] tweaked toml for git repo https://github.com/lautis/nad-volume-sync written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lautis/nad-volume-sync 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]  Downloading crates ...
[INFO] [stderr]   Downloaded alsa v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 239a2a052dd9f28f25b25cc11c3392b6107eb3eb86ba0b817342062c6dbc3f1c
[INFO] running `Command { std: "docker" "start" "-a" "239a2a052dd9f28f25b25cc11c3392b6107eb3eb86ba0b817342062c6dbc3f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "239a2a052dd9f28f25b25cc11c3392b6107eb3eb86ba0b817342062c6dbc3f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "239a2a052dd9f28f25b25cc11c3392b6107eb3eb86ba0b817342062c6dbc3f1c", kill_on_drop: false }`
[INFO] [stdout] 239a2a052dd9f28f25b25cc11c3392b6107eb3eb86ba0b817342062c6dbc3f1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 91355ed538c77d3cc2509733cd4ceb91ac4ea8772a8b06bbecbbc9a3a0cadb6d
[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" "91355ed538c77d3cc2509733cd4ceb91ac4ea8772a8b06bbecbbc9a3a0cadb6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking nom v4.2.0
[INFO] [stderr]     Checking alsa v0.2.1
[INFO] [stderr]     Checking nad-volume-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn open_audio_ctl(name: &str) -> Result<alsa::Ctl, Box<error::Error>> {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:20:54
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn open_mixer(name: &str) -> Result<alsa::Mixer, Box<error::Error>> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn listen(name: String, f: Box<Fn(f64) + Send>) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:67
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn listen(name: String, f: Box<Fn(f64) + Send>) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:40:47
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn alsa_volume(name: &str) -> Result<f64, Box<error::Error>> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:65:65
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn set_alsa_volume(name: String, volume: f64) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:82:79
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn set_receiver_volume(stream: &mut TcpStream, volume: f64) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:98:59
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn read_stream(stream: &mut TcpStream) -> Result<f64, Box<error::Error>> {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:119:67
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn poll_receiver_volume(stream: &mut TcpStream) -> Result<(), Box<error::Error>> {
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:189:70
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     .expect("Could not send receiver volume change");;
[INFO] [stdout]     |                                                                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:198:63
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn receiver_connect(address: String) -> Result<TcpStream, Box<error::Error>> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 | fn main() -> Result<(), Box<error::Error>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:231:65
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 .expect("Could not send volume change command");;
[INFO] [stdout]     |                                                                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn open_audio_ctl(name: &str) -> Result<alsa::Ctl, Box<error::Error>> {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:20:54
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn open_mixer(name: &str) -> Result<alsa::Mixer, Box<error::Error>> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn listen(name: String, f: Box<Fn(f64) + Send>) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:67
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn listen(name: String, f: Box<Fn(f64) + Send>) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:40:47
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn alsa_volume(name: &str) -> Result<f64, Box<error::Error>> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:65:65
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn set_alsa_volume(name: String, volume: f64) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:82:79
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn set_receiver_volume(stream: &mut TcpStream, volume: f64) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:98:59
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn read_stream(stream: &mut TcpStream) -> Result<f64, Box<error::Error>> {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:119:67
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn poll_receiver_volume(stream: &mut TcpStream) -> Result<(), Box<error::Error>> {
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:189:70
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     .expect("Could not send receiver volume change");;
[INFO] [stdout]     |                                                                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:198:63
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn receiver_connect(address: String) -> Result<TcpStream, Box<error::Error>> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 | fn main() -> Result<(), Box<error::Error>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:231:65
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 .expect("Could not send volume change command");;
[INFO] [stdout]     |                                                                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.81s
[INFO] running `Command { std: "docker" "inspect" "91355ed538c77d3cc2509733cd4ceb91ac4ea8772a8b06bbecbbc9a3a0cadb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91355ed538c77d3cc2509733cd4ceb91ac4ea8772a8b06bbecbbc9a3a0cadb6d", kill_on_drop: false }`
[INFO] [stdout] 91355ed538c77d3cc2509733cd4ceb91ac4ea8772a8b06bbecbbc9a3a0cadb6d