[INFO] cloning repository https://github.com/ischeinkman/MediaSync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ischeinkman/MediaSync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fischeinkman%2FMediaSync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fischeinkman%2FMediaSync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5b653b933aa788f5af2073e812c2ea569935228
[INFO] checking ischeinkman/MediaSync against master#899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13 for pr-127827-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fischeinkman%2FMediaSync" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ischeinkman/MediaSync on toolchain 899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ischeinkman/MediaSync
[INFO] finished tweaking git repo https://github.com/ischeinkman/MediaSync
[INFO] tweaked toml for git repo https://github.com/ischeinkman/MediaSync written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ischeinkman/MediaSync already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c717550144aae26144bbc4f64fd2704edd864fb054434fc29671b3ed4f337bf4
[INFO] running `Command { std: "docker" "start" "-a" "c717550144aae26144bbc4f64fd2704edd864fb054434fc29671b3ed4f337bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c717550144aae26144bbc4f64fd2704edd864fb054434fc29671b3ed4f337bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c717550144aae26144bbc4f64fd2704edd864fb054434fc29671b3ed4f337bf4", kill_on_drop: false }`
[INFO] [stdout] c717550144aae26144bbc4f64fd2704edd864fb054434fc29671b3ed4f337bf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6341323110e5601d45162c30d15c0f80d2527c0da4d5fffacedeb3c6051dffe
[INFO] running `Command { std: "docker" "start" "-a" "a6341323110e5601d45162c30d15c0f80d2527c0da4d5fffacedeb3c6051dffe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
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[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking pin-project-lite v0.1.4
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[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling quote v1.0.4
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[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
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[INFO] [stderr]     Checking vlcsync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `con`
[INFO] [stdout]    --> src/network/publicaddr.rs:223:54
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stun_res = if let OpenPublicArgs::UdpCon(con) = args {
[INFO] [stdout]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_con`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `con`
[INFO] [stdout]    --> src/network/publicaddr.rs:223:54
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let stun_res = if let OpenPublicArgs::UdpCon(con) = args {
[INFO] [stdout]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_con`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/players.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let mut retvl = Vec::new();
[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/players.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let mut retvl = Vec::new();
[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: function `generate_spawn` is never used
[INFO] [stdout]   --> src/utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn generate_spawn<
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `has_woken` are never used
[INFO] [stdout]   --> src/utils.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl MyWaker {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 41 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn has_woken(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `block_on` is never used
[INFO] [stdout]   --> src/utils.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn block_on<F: std::future::Future>(fut: F) -> F::Output {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/main.rs:135:25
[INFO] [stdout]     |
[INFO] [stdout] 135 |                         tokio::task::yield_now().await;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 135 |                         let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/network/tcp.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     tokio::task::yield_now().await;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/network/tcp.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 tokio::task::yield_now().await;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_spawn` is never used
[INFO] [stdout]   --> src/utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn generate_spawn<
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `has_woken` are never used
[INFO] [stdout]   --> src/utils.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl MyWaker {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 41 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn has_woken(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `block_on` is never used
[INFO] [stdout]   --> src/utils.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn block_on<F: std::future::Future>(fut: F) -> F::Output {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/main.rs:135:25
[INFO] [stdout]     |
[INFO] [stdout] 135 |                         tokio::task::yield_now().await;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 135 |                         let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/network/tcp.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     tokio::task::yield_now().await;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |                     let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]    --> src/network/tcp.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 tokio::task::yield_now().await;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 let _ = tokio::task::yield_now().await;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.64s
[INFO] running `Command { std: "docker" "inspect" "a6341323110e5601d45162c30d15c0f80d2527c0da4d5fffacedeb3c6051dffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6341323110e5601d45162c30d15c0f80d2527c0da4d5fffacedeb3c6051dffe", kill_on_drop: false }`
[INFO] [stdout] a6341323110e5601d45162c30d15c0f80d2527c0da4d5fffacedeb3c6051dffe