[INFO] fetching crate mcvm 0.25.0...
[INFO] checking mcvm-0.25.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate mcvm 0.25.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mcvm 0.25.0
[INFO] finished tweaking crates.io crate mcvm 0.25.0
[INFO] tweaked toml for crates.io crate mcvm 0.25.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcvm 0.25.0 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcvm 0.25.0 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4e10b211dc731aec334deed25ccf95fbcb7ca405b383741ce85ecabed717613
[INFO] running `Command { std: "docker" "start" "-a" "c4e10b211dc731aec334deed25ccf95fbcb7ca405b383741ce85ecabed717613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e10b211dc731aec334deed25ccf95fbcb7ca405b383741ce85ecabed717613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e10b211dc731aec334deed25ccf95fbcb7ca405b383741ce85ecabed717613", kill_on_drop: false }`
[INFO] [stdout] c4e10b211dc731aec334deed25ccf95fbcb7ca405b383741ce85ecabed717613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 684a13ff10032a8b39fd79777b1bb2b7878ffdc57dd9292e20c9655711531e33
[INFO] running `Command { std: "docker" "start" "-a" "684a13ff10032a8b39fd79777b1bb2b7878ffdc57dd9292e20c9655711531e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling syn v2.0.101
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[INFO] [stderr]     Checking mcvm_plugin v0.5.0
[INFO] [stderr]     Checking mcvm v0.25.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `ProxyHandle` is never constructed
[INFO] [stdout]    --> src/profile/proxy.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct ProxyHandle {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/config/builder.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn user(&mut self, id: String, kind: UserBuilderKind) -> UserBuilder {
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn user(&mut self, id: String, kind: UserBuilderKind) -> UserBuilder<'_> {
[INFO] [stdout]    |                                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config/package.rs:227:20
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn get_worlds(&self) -> Cow<[String]> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn get_worlds(&self) -> Cow<'_, [String]> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/instance/update/manager.rs:230:3
[INFO] [stdout]     |
[INFO] [stdout] 230 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 231 |         o: &mut impl MCVMOutput,
[INFO] [stdout] 232 |     ) -> anyhow::Result<InstalledVersion> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^ the same lifetimes are 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] 232 |     ) -> anyhow::Result<InstalledVersion<'_, '_>> {
[INFO] [stdout]     |                                         ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/pkg/repo.rs:267:3
[INFO] [stdout]     |
[INFO] [stdout] 267 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 271 |     ) -> anyhow::Result<Cow<RepoMetadata>> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ 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] 271 |     ) -> anyhow::Result<Cow<'_, RepoMetadata>> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/plugin/mod.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn get_lock(&self) -> anyhow::Result<MutexGuard<PluginManagerInner>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn get_lock(&self) -> anyhow::Result<MutexGuard<'_, PluginManagerInner>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ProxyHandle` is never constructed
[INFO] [stdout]    --> src/profile/proxy.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct ProxyHandle {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/config/builder.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn user(&mut self, id: String, kind: UserBuilderKind) -> UserBuilder {
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn user(&mut self, id: String, kind: UserBuilderKind) -> UserBuilder<'_> {
[INFO] [stdout]    |                                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config/package.rs:227:20
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn get_worlds(&self) -> Cow<[String]> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn get_worlds(&self) -> Cow<'_, [String]> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/instance/update/manager.rs:230:3
[INFO] [stdout]     |
[INFO] [stdout] 230 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 231 |         o: &mut impl MCVMOutput,
[INFO] [stdout] 232 |     ) -> anyhow::Result<InstalledVersion> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^ the same lifetimes are 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] 232 |     ) -> anyhow::Result<InstalledVersion<'_, '_>> {
[INFO] [stdout]     |                                         ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcvm` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/pkg/repo.rs:267:3
[INFO] [stdout]     |
[INFO] [stdout] 267 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 271 |     ) -> anyhow::Result<Cow<RepoMetadata>> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ 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] 271 |     ) -> anyhow::Result<Cow<'_, RepoMetadata>> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/plugin/mod.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn get_lock(&self) -> anyhow::Result<MutexGuard<PluginManagerInner>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn get_lock(&self) -> anyhow::Result<MutexGuard<'_, PluginManagerInner>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcvm` (lib) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "684a13ff10032a8b39fd79777b1bb2b7878ffdc57dd9292e20c9655711531e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684a13ff10032a8b39fd79777b1bb2b7878ffdc57dd9292e20c9655711531e33", kill_on_drop: false }`
[INFO] [stdout] 684a13ff10032a8b39fd79777b1bb2b7878ffdc57dd9292e20c9655711531e33
