[INFO] fetching crate dbus-crossroads 0.5.2...
[INFO] testing dbus-crossroads-0.5.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate dbus-crossroads 0.5.2 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dbus-crossroads 0.5.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.49
[INFO] [stderr]   Downloaded dbus v0.9.7
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded tokio v1.24.1
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.0
[INFO] [stderr]   Downloaded libdbus-sys v0.2.3
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55c5f0a89b4ceb6714a57b32f0acf4e3dba776fb03aecda2ab094e4c3a23cada
[INFO] running `Command { std: "docker" "start" "-a" "55c5f0a89b4ceb6714a57b32f0acf4e3dba776fb03aecda2ab094e4c3a23cada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55c5f0a89b4ceb6714a57b32f0acf4e3dba776fb03aecda2ab094e4c3a23cada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c5f0a89b4ceb6714a57b32f0acf4e3dba776fb03aecda2ab094e4c3a23cada", kill_on_drop: false }`
[INFO] [stdout] 55c5f0a89b4ceb6714a57b32f0acf4e3dba776fb03aecda2ab094e4c3a23cada
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9392fc3ec3a9154ece389bb8f07b3dc92963857480a1ab4f165789471a7cdff6
[INFO] running `Command { std: "docker" "start" "-a" "9392fc3ec3a9154ece389bb8f07b3dc92963857480a1ab4f165789471a7cdff6", 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 6.11s
[INFO] running `Command { std: "docker" "inspect" "9392fc3ec3a9154ece389bb8f07b3dc92963857480a1ab4f165789471a7cdff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9392fc3ec3a9154ece389bb8f07b3dc92963857480a1ab4f165789471a7cdff6", kill_on_drop: false }`
[INFO] [stdout] 9392fc3ec3a9154ece389bb8f07b3dc92963857480a1ab4f165789471a7cdff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6fb60605e80af70e75d46641fb0dd06a943a3ec635b9ca90f3e1c86b6fb5f2
[INFO] running `Command { std: "docker" "start" "-a" "ce6fb60605e80af70e75d46641fb0dd06a943a3ec635b9ca90f3e1c86b6fb5f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[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] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ce6fb60605e80af70e75d46641fb0dd06a943a3ec635b9ca90f3e1c86b6fb5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6fb60605e80af70e75d46641fb0dd06a943a3ec635b9ca90f3e1c86b6fb5f2", kill_on_drop: false }`
[INFO] [stdout] ce6fb60605e80af70e75d46641fb0dd06a943a3ec635b9ca90f3e1c86b6fb5f2
