[INFO] fetching crate refbox 0.4.1...
[INFO] testing refbox-0.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate refbox 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate refbox 0.4.1
[INFO] finished tweaking crates.io crate refbox 0.4.1
[INFO] tweaked toml for crates.io crate refbox 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate refbox 0.4.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate refbox 0.4.1 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b2e527397defe9cae411eefccef5c9dc6e21bbea55b74632d92fbbb0df00505
[INFO] running `Command { std: "docker" "start" "-a" "1b2e527397defe9cae411eefccef5c9dc6e21bbea55b74632d92fbbb0df00505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b2e527397defe9cae411eefccef5c9dc6e21bbea55b74632d92fbbb0df00505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2e527397defe9cae411eefccef5c9dc6e21bbea55b74632d92fbbb0df00505", kill_on_drop: false }`
[INFO] [stdout] 1b2e527397defe9cae411eefccef5c9dc6e21bbea55b74632d92fbbb0df00505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1a343893ae7accbd55959e23437c796552e9c7be6b65b536d72b63c3fa3b69d
[INFO] running `Command { std: "docker" "start" "-a" "d1a343893ae7accbd55959e23437c796552e9c7be6b65b536d72b63c3fa3b69d", kill_on_drop: false }`
[INFO] [stderr]    Compiling refbox v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:287:27
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 295 |         err_borrowed: impl FnOnce() -> E,
[INFO] [stdout] 296 |     ) -> Result<Borrow<T>, E> {
[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] 296 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:507:27
[INFO] [stdout]     |
[INFO] [stdout] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:514:9
[INFO] [stdout]     |
[INFO] [stdout] 514 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 517 |     ) -> Result<Borrow<T>, E> {
[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] 517 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "d1a343893ae7accbd55959e23437c796552e9c7be6b65b536d72b63c3fa3b69d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a343893ae7accbd55959e23437c796552e9c7be6b65b536d72b63c3fa3b69d", kill_on_drop: false }`
[INFO] [stdout] d1a343893ae7accbd55959e23437c796552e9c7be6b65b536d72b63c3fa3b69d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbd361569bd03a3eb946a3b21bb9ddb96a3d2896d01f45e8723fa29bcdf998b3
[INFO] running `Command { std: "docker" "start" "-a" "fbd361569bd03a3eb946a3b21bb9ddb96a3d2896d01f45e8723fa29bcdf998b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:287:27
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 295 |         err_borrowed: impl FnOnce() -> E,
[INFO] [stdout] 296 |     ) -> Result<Borrow<T>, E> {
[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] 296 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:507:27
[INFO] [stdout]     |
[INFO] [stdout] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:514:9
[INFO] [stdout]     |
[INFO] [stdout] 514 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 517 |     ) -> Result<Borrow<T>, E> {
[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] 517 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.37
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap v4.5.37
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]    Compiling refbox v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:287:27
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 295 |         err_borrowed: impl FnOnce() -> E,
[INFO] [stdout] 296 |     ) -> Result<Borrow<T>, E> {
[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] 296 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:507:27
[INFO] [stdout]     |
[INFO] [stdout] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[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] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:514:9
[INFO] [stdout]     |
[INFO] [stdout] 514 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 517 |     ) -> Result<Borrow<T>, E> {
[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] 517 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 29.50s
[INFO] running `Command { std: "docker" "inspect" "fbd361569bd03a3eb946a3b21bb9ddb96a3d2896d01f45e8723fa29bcdf998b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd361569bd03a3eb946a3b21bb9ddb96a3d2896d01f45e8723fa29bcdf998b3", kill_on_drop: false }`
[INFO] [stdout] fbd361569bd03a3eb946a3b21bb9ddb96a3d2896d01f45e8723fa29bcdf998b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b108cd80a3e91060170c1ca64096b5ad6af1d883dc1324a5f2932e116e746eb
[INFO] running `Command { std: "docker" "start" "-a" "1b108cd80a3e91060170c1ca64096b5ad6af1d883dc1324a5f2932e116e746eb", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:287:27
[INFO] [stderr]     |
[INFO] [stderr] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[INFO] [stderr]     |                           ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 287 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:294:9
[INFO] [stderr]     |
[INFO] [stderr] 294 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] 295 |         err_borrowed: impl FnOnce() -> E,
[INFO] [stderr] 296 |     ) -> Result<Borrow<T>, E> {
[INFO] [stderr]     |                 ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 296 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:507:27
[INFO] [stderr]     |
[INFO] [stderr] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<T>, BorrowError> {
[INFO] [stderr]     |                           ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 507 |     pub fn try_borrow_mut(&self) -> Result<Borrow<'_, T>, BorrowError> {
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:514:9
[INFO] [stderr]     |
[INFO] [stderr] 514 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 517 |     ) -> Result<Borrow<T>, E> {
[INFO] [stderr]     |                 ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 517 |     ) -> Result<Borrow<'_, T>, E> {
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `refbox` (lib) generated 4 warnings (run `cargo fix --lib -p refbox` to apply 4 suggestions)
[INFO] [stderr] warning: `refbox` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/refbox-81474ef997956e07)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test tests::borrowing_changes_status ... ok
[INFO] [stdout] test tests::calling_getters_while_having_mutable_ref ... ok
[INFO] [stdout] test tests::cloning_weak_increases_weak_count ... ok
[INFO] [stdout] test tests::downgrade_increases_refcount ... ok
[INFO] [stdout] test tests::dropping_owner_changes_status ... ok
[INFO] [stdout] test tests::dropping_owner_while_borrowed_delays_drops ... ok
[INFO] [stdout] test tests::dropping_rc_with_weak_refs_drops_data ... ok
[INFO] [stdout] test tests::heap_overhead ... ok
[INFO] [stdout] test tests::dropping_weak_decreases_weak_count ... ok
[INFO] [stdout] test tests::owner_is_alive ... ok
[INFO] [stdout] test tests::single_ref_boxes_are_distinct ... ok
[INFO] [stdout] test tests::owner_is_borrowable ... ok
[INFO] [stdout] test tests::owner_is_not_alive_after_dropped ... ok
[INFO] [stdout] test tests::dropping_ref_box_drops_data ... ok
[INFO] [stdout] test tests::owner_is_not_borrowable_twice ... ok
[INFO] [stdout] test tests::ref_box_as_ptr ... ok
[INFO] [stdout] test tests::ref_box_new ... ok
[INFO] [stdout] test tests::weak_is_not_borrowable_if_owner_dropped ... ok
[INFO] [stdout] test tests::try_downgrade_returns_none_on_max ... ok
[INFO] [stdout] test tests::weak_is_not_borrowable_twice ... ok
[INFO] [stdout] test tests::weak_is_not_borrowable_if_owner_borrowed ... ok
[INFO] [stdout] test tests::ref_box_new_weak_count ... ok
[INFO] [stdout] test tests::downgrade_ptr_eq ... ok
[INFO] [stdout] test tests::weak_is_borrowable ... ok
[INFO] [stdout] test tests::weak_as_ptr ... ok
[INFO] [stdout] test tests::dropping_weak_does_not_drop_data ... ok
[INFO] [stdout] test tests::downgrade_panics_on_max ... ok
[INFO] [stdout] test tests::cloning_weak_panics_on_max ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests refbox
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - coerce_weak (line 136) ... ok
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] test src/lib.rs - coerce (line 103) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.78s; merged doctests compilation took 0.76s
[INFO] running `Command { std: "docker" "inspect" "1b108cd80a3e91060170c1ca64096b5ad6af1d883dc1324a5f2932e116e746eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b108cd80a3e91060170c1ca64096b5ad6af1d883dc1324a5f2932e116e746eb", kill_on_drop: false }`
[INFO] [stdout] 1b108cd80a3e91060170c1ca64096b5ad6af1d883dc1324a5f2932e116e746eb
