[INFO] fetching crate dbus-crossroads 0.5.2...
[INFO] testing dbus-crossroads-0.5.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate dbus-crossroads 0.5.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate dbus-crossroads 0.5.2
[INFO] finished tweaking crates.io crate dbus-crossroads 0.5.2
[INFO] tweaked toml for crates.io crate dbus-crossroads 0.5.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dbus-crossroads 0.5.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dbus-crossroads 0.5.2 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73817162dc88c241c78fec6b6971d60f45f6a877f5ea03b44a5cd9b002f5c0d3
[INFO] running `Command { std: "docker" "start" "-a" "73817162dc88c241c78fec6b6971d60f45f6a877f5ea03b44a5cd9b002f5c0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73817162dc88c241c78fec6b6971d60f45f6a877f5ea03b44a5cd9b002f5c0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73817162dc88c241c78fec6b6971d60f45f6a877f5ea03b44a5cd9b002f5c0d3", kill_on_drop: false }`
[INFO] [stdout] 73817162dc88c241c78fec6b6971d60f45f6a877f5ea03b44a5cd9b002f5c0d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94fd3479c29c4e163c847d3b976da16556ef3153a81e4b174ab97df1da2eb81b
[INFO] running `Command { std: "docker" "start" "-a" "94fd3479c29c4e163c847d3b976da16556ef3153a81e4b174ab97df1da2eb81b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling libdbus-sys v0.2.3
[INFO] [stderr]    Compiling dbus v0.9.7
[INFO] [stderr]    Compiling dbus-crossroads v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/stdimpl.rs:97:103
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout]    |                                                                                                       ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout] 97 +                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<dyn RefArg + Send>));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:314:35
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub (crate) fn get_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                                   ----^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:413:27
[INFO] [stdout]     |
[INFO] [stdout] 413 |     pub fn set_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ifacedesc.rs:503:51
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn property<A: arg::Arg, N: Into<String>>(&mut self, name: N) -> PropBuilder<T, A> {
[INFO] [stdout]     |                                                   ^^^^^^^^^              ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn property<A: arg::Arg, N: Into<String>>(&mut self, name: N) -> PropBuilder<'_, T, A> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ifacedesc.rs:598:25
[INFO] [stdout]     |
[INFO] [stdout] 598 |     pub fn signal<A, N>(&mut self, name: N, args: A::strs) -> SignalBuilder<A>
[INFO] [stdout]     |                         ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 598 |     pub fn signal<A, N>(&mut self, name: N, args: A::strs) -> SignalBuilder<'_, A>
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.46s
[INFO] running `Command { std: "docker" "inspect" "94fd3479c29c4e163c847d3b976da16556ef3153a81e4b174ab97df1da2eb81b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94fd3479c29c4e163c847d3b976da16556ef3153a81e4b174ab97df1da2eb81b", kill_on_drop: false }`
[INFO] [stdout] 94fd3479c29c4e163c847d3b976da16556ef3153a81e4b174ab97df1da2eb81b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f4418d763852a4b86b5c9abb830d03c41786d548582c3c62a16522472e7435c
[INFO] running `Command { std: "docker" "start" "-a" "4f4418d763852a4b86b5c9abb830d03c41786d548582c3c62a16522472e7435c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling tokio v1.24.1
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/stdimpl.rs:97:103
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout]    |                                                                                                       ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout] 97 +                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<dyn RefArg + Send>));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:314:35
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub (crate) fn get_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                                   ----^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:413:27
[INFO] [stdout]     |
[INFO] [stdout] 413 |     pub fn set_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ifacedesc.rs:503:51
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn property<A: arg::Arg, N: Into<String>>(&mut self, name: N) -> PropBuilder<T, A> {
[INFO] [stdout]     |                                                   ^^^^^^^^^              ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn property<A: arg::Arg, N: Into<String>>(&mut self, name: N) -> PropBuilder<'_, T, A> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ifacedesc.rs:598:25
[INFO] [stdout]     |
[INFO] [stdout] 598 |     pub fn signal<A, N>(&mut self, name: N, args: A::strs) -> SignalBuilder<A>
[INFO] [stdout]     |                         ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 598 |     pub fn signal<A, N>(&mut self, name: N, args: A::strs) -> SignalBuilder<'_, A>
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling dbus-crossroads v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]    --> src/test.rs:258:27
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let (resource, bus) = dbus_tokio::connection::new_session_sync().unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^ use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `dbus_tokio`, use `cargo add dbus_tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]    --> src/test.rs:357:27
[INFO] [stdout]     |
[INFO] [stdout] 357 |     let (resource, bus) = dbus_tokio::connection::new_session_sync().unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^ use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `dbus_tokio`, use `cargo add dbus_tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]    --> src/test.rs:395:27
[INFO] [stdout]     |
[INFO] [stdout] 395 |     let (resource, bus) = dbus_tokio::connection::new_session_sync().unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^ use of unresolved module or unlinked crate `dbus_tokio`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `dbus_tokio`, use `cargo add dbus_tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `nonblock` in `dbus`
[INFO] [stdout]    --> src/test.rs:286:23
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.objmgr_asyncprop", "/", Duration::from_secs(5), bus);
[INFO] [stdout]     |                       ^^^^^^^^ could not find `nonblock` in `dbus`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/dbus-0.9.7/src/lib.rs:41:9
[INFO] [stdout]     |
[INFO] [stdout]  40 | #[cfg(feature = "futures")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `futures` feature
[INFO] [stdout]  41 | pub mod nonblock;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout]   1 + use dbus::blocking::Proxy;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Proxy`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 286 -     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.objmgr_asyncprop", "/", Duration::from_secs(5), bus);
[INFO] [stdout] 286 +     let proxy = Proxy::new("com.example.dbusrs.objmgr_asyncprop", "/", Duration::from_secs(5), bus);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `nonblock` in `dbus`
[INFO] [stdout]    --> src/test.rs:380:23
[INFO] [stdout]     |
[INFO] [stdout] 380 |     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.properties", "/", Duration::from_secs(3600), bus);
[INFO] [stdout]     |                       ^^^^^^^^ could not find `nonblock` in `dbus`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/dbus-0.9.7/src/lib.rs:41:9
[INFO] [stdout]     |
[INFO] [stdout]  40 | #[cfg(feature = "futures")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `futures` feature
[INFO] [stdout]  41 | pub mod nonblock;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout]   1 + use dbus::blocking::Proxy;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Proxy`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 380 -     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.properties", "/", Duration::from_secs(3600), bus);
[INFO] [stdout] 380 +     let proxy = Proxy::new("com.example.dbusrs.properties", "/", Duration::from_secs(3600), bus);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `nonblock` in `dbus`
[INFO] [stdout]    --> src/test.rs:424:23
[INFO] [stdout]     |
[INFO] [stdout] 424 |     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.properties2", "/", Duration::from_secs(5), bus);
[INFO] [stdout]     |                       ^^^^^^^^ could not find `nonblock` in `dbus`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/dbus-0.9.7/src/lib.rs:41:9
[INFO] [stdout]     |
[INFO] [stdout]  40 | #[cfg(feature = "futures")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `futures` feature
[INFO] [stdout]  41 | pub mod nonblock;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout]   1 + use dbus::blocking::Proxy;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Proxy`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 424 -     let proxy = dbus::nonblock::Proxy::new("com.example.dbusrs.properties2", "/", Duration::from_secs(5), bus);
[INFO] [stdout] 424 +     let proxy = Proxy::new("com.example.dbusrs.properties2", "/", Duration::from_secs(5), bus);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/stdimpl.rs:97:103
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout]    |                                                                                                       ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<(dyn RefArg + Send)>));
[INFO] [stdout] 97 +                 ga.lock().unwrap().add_reply(self.name.clone(), reply.ok().map(|a| Box::new(a) as Box<dyn RefArg + Send>));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:314:35
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub (crate) fn get_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                                   ----^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ifacedesc.rs:413:27
[INFO] [stdout]     |
[INFO] [stdout] 413 |     pub fn set_custom<CB>(mut self, mut cb: CB) -> Self
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dbus-crossroads` (lib test) due to 6 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4f4418d763852a4b86b5c9abb830d03c41786d548582c3c62a16522472e7435c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4418d763852a4b86b5c9abb830d03c41786d548582c3c62a16522472e7435c", kill_on_drop: false }`
[INFO] [stdout] 4f4418d763852a4b86b5c9abb830d03c41786d548582c3c62a16522472e7435c
