[INFO] fetching crate lifeguard 0.6.1...
[INFO] checking lifeguard-0.6.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate lifeguard 0.6.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate lifeguard 0.6.1
[INFO] finished tweaking crates.io crate lifeguard 0.6.1
[INFO] tweaked toml for crates.io crate lifeguard 0.6.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lifeguard 0.6.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 254a4d3e5afe4a0f83354a5ac92822523978435e9db9780c3a11493b0f9fb68e
[INFO] running `Command { std: "docker" "start" "-a" "254a4d3e5afe4a0f83354a5ac92822523978435e9db9780c3a11493b0f9fb68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "254a4d3e5afe4a0f83354a5ac92822523978435e9db9780c3a11493b0f9fb68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254a4d3e5afe4a0f83354a5ac92822523978435e9db9780c3a11493b0f9fb68e", kill_on_drop: false }`
[INFO] [stdout] 254a4d3e5afe4a0f83354a5ac92822523978435e9db9780c3a11493b0f9fb68e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 246a24707c62e1a71413e302ed3cf6d53b7caf96950ce76ee9a6eb8dc9a134bb
[INFO] running `Command { std: "docker" "start" "-a" "246a24707c62e1a71413e302ed3cf6d53b7caf96950ce76ee9a6eb8dc9a134bb", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking lifeguard v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:607:25
[INFO] [stdout]     |
[INFO] [stdout] 607 |     fn set_option(self, T) -> T;
[INFO] [stdout]     |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:607:25
[INFO] [stdout]     |
[INFO] [stdout] 607 |     fn set_option(self, T) -> T;
[INFO] [stdout]     |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_from` are never used
[INFO] [stdout]    --> src/lib.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |   impl <'a, T> $typ where T: Recycleable {
[INFO] [stdout]     |   -------------------------------------- associated functions in this implementation
[INFO] [stdout] 167 |     fn new(pool: $pool, value: T) -> $typ {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn new_from<A>(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith<A> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 | impl_recycled!{ RcRecycled, RcRecycled<T>, Rc<RefCell<CappedCollection<T>>> }
[INFO] [stdout]     | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_from` are never used
[INFO] [stdout]    --> src/lib.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |   impl <'a, T> $typ where T: Recycleable {
[INFO] [stdout]     |   -------------------------------------- associated functions in this implementation
[INFO] [stdout] 167 |     fn new(pool: $pool, value: T) -> $typ {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn new_from<A>(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith<A> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 | impl_recycled!{ Recycled, Recycled<'a, T>, &'a RefCell<CappedCollection<T>> }
[INFO] [stdout]     | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:495:14
[INFO] [stdout]     |
[INFO] [stdout] 495 |   pub fn new(&self) -> Recycled<T> {
[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] 495 |   pub fn new(&self) -> Recycled<'_, T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:505:22
[INFO] [stdout]     |
[INFO] [stdout] 505 |   pub fn new_from<A>(&self, source: A) -> Recycled<T> where T: InitializeWith<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 505 |   pub fn new_from<A>(&self, source: A) -> Recycled<'_, T> where T: InitializeWith<A> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:513:17
[INFO] [stdout]     |
[INFO] [stdout] 513 |   pub fn attach(&self, value: T) -> Recycled<T> {
[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] 513 |   pub fn attach(&self, value: T) -> Recycled<'_, T> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_from` are never used
[INFO] [stdout]    --> src/lib.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |   impl <'a, T> $typ where T: Recycleable {
[INFO] [stdout]     |   -------------------------------------- associated functions in this implementation
[INFO] [stdout] 167 |     fn new(pool: $pool, value: T) -> $typ {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn new_from<A>(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith<A> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 | impl_recycled!{ RcRecycled, RcRecycled<T>, Rc<RefCell<CappedCollection<T>>> }
[INFO] [stdout]     | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_from` are never used
[INFO] [stdout]    --> src/lib.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |   impl <'a, T> $typ where T: Recycleable {
[INFO] [stdout]     |   -------------------------------------- associated functions in this implementation
[INFO] [stdout] 167 |     fn new(pool: $pool, value: T) -> $typ {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn new_from<A>(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith<A> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 | impl_recycled!{ Recycled, Recycled<'a, T>, &'a RefCell<CappedCollection<T>> }
[INFO] [stdout]     | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:495:14
[INFO] [stdout]     |
[INFO] [stdout] 495 |   pub fn new(&self) -> Recycled<T> {
[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] 495 |   pub fn new(&self) -> Recycled<'_, T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:505:22
[INFO] [stdout]     |
[INFO] [stdout] 505 |   pub fn new_from<A>(&self, source: A) -> Recycled<T> where T: InitializeWith<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 505 |   pub fn new_from<A>(&self, source: A) -> Recycled<'_, T> where T: InitializeWith<A> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:513:17
[INFO] [stdout]     |
[INFO] [stdout] 513 |   pub fn attach(&self, value: T) -> Recycled<T> {
[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] 513 |   pub fn attach(&self, value: T) -> Recycled<'_, T> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "246a24707c62e1a71413e302ed3cf6d53b7caf96950ce76ee9a6eb8dc9a134bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "246a24707c62e1a71413e302ed3cf6d53b7caf96950ce76ee9a6eb8dc9a134bb", kill_on_drop: false }`
[INFO] [stdout] 246a24707c62e1a71413e302ed3cf6d53b7caf96950ce76ee9a6eb8dc9a134bb
