[INFO] fetching crate galvanic-assert 0.8.7...
[INFO] testing galvanic-assert-0.8.7 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate galvanic-assert 0.8.7 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate galvanic-assert 0.8.7
[INFO] finished tweaking crates.io crate galvanic-assert 0.8.7
[INFO] tweaked toml for crates.io crate galvanic-assert 0.8.7 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate galvanic-assert 0.8.7 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83991578000e4f6a93821ba4343ab68813b006bbc82f115ec0de8ca750330339
[INFO] running `Command { std: "docker" "start" "-a" "83991578000e4f6a93821ba4343ab68813b006bbc82f115ec0de8ca750330339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83991578000e4f6a93821ba4343ab68813b006bbc82f115ec0de8ca750330339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83991578000e4f6a93821ba4343ab68813b006bbc82f115ec0de8ca750330339", kill_on_drop: false }`
[INFO] [stdout] 83991578000e4f6a93821ba4343ab68813b006bbc82f115ec0de8ca750330339
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b3def75b14d47894add5953003d9b0e606d5259c7754048c15cec72b3763a5
[INFO] running `Command { std: "docker" "start" "-a" "21b3def75b14d47894add5953003d9b0e606d5259c7754048c15cec72b3763a5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling galvanic-assert v0.8.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:43:52
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:55:36
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:34
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:62
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:63
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:36
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:64
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:154:44
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:170:62
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:183:45
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:198:63
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:211:48
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:226:63
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:240:54
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:256:64
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:270:57
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:286:64
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:299:52
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:334:51
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:71
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:48
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:76
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:49
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:77
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/collection.rs:47:78
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:109:74
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:166:72
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:214:63
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:248:88
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:289:97
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:329:62
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:375:71
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:422:42
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:439:51
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:456:43
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:473:52
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:490:60
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:518:61
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:566:62
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:637:50
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:690:52
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:130:34
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "21b3def75b14d47894add5953003d9b0e606d5259c7754048c15cec72b3763a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b3def75b14d47894add5953003d9b0e606d5259c7754048c15cec72b3763a5", kill_on_drop: false }`
[INFO] [stdout] 21b3def75b14d47894add5953003d9b0e606d5259c7754048c15cec72b3763a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f598c535470665b455d7eaa1ad3f47908130eaa03442a991524044fd8d7ecc9f
[INFO] running `Command { std: "docker" "start" "-a" "f598c535470665b455d7eaa1ad3f47908130eaa03442a991524044fd8d7ecc9f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:43:52
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:55:36
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:34
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:62
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:63
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:36
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:64
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:154:44
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:170:62
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:183:45
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:198:63
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:211:48
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:226:63
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:240:54
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:256:64
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:270:57
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:286:64
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:299:52
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:334:51
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:71
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:48
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:76
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:49
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:77
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/collection.rs:47:78
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:109:74
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:166:72
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:214:63
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:248:88
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:289:97
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling galvanic-assert v0.8.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:329:62
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:375:71
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:422:42
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:439:51
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:456:43
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:473:52
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:490:60
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:518:61
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:566:62
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:637:50
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:690:52
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:130:34
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:43:52
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:55:36
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn any_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/core.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn no_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:34
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:101:62
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:117:63
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:36
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:130:64
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:154:44
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:170:62
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:183:45
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn less_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:198:63
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:211:48
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:226:63
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:240:54
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:256:64
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:270:57
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:286:64
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:299:52
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/core.rs:334:51
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:67:71
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Option<T>> + 'a> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:48
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/variant.rs:88:76
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:49
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/variant.rs:109:77
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/collection.rs:47:78
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:109:74
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:166:72
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:214:63
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:248:88
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:289:97
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:329:62
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:375:71
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:422:42
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:439:51
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:456:43
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 456 | pub fn sorted_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:473:52
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:490:60
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:518:61
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:566:62
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:637:50
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/collection.rs:690:52
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matchers/combinators.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn and(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/matchers/combinators.rs:130:34
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn or(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `allow`
[INFO] [stdout]    --> tests/expectations.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             #[allow(unused_variables)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `expect_that`
[INFO] [stdout]    --> tests/expectations.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             expect_that!(1 != 1);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]   --> tests/expectations.rs:91:42
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let e = get_expectation_for!(1 == 1, panics);
[INFO] [stdout]    |                                          ^^^^^^ the comparison produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let e = get_expectation_for!(let _ = 1 == 1, panics);
[INFO] [stdout]    |                                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> tests/expectations.rs:101:42
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let e = get_expectation_for!(1 == 1, does not panic);
[INFO] [stdout]     |                                          ^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let e = get_expectation_for!(let _ = 1 == 1, does not panic);
[INFO] [stdout]     |                                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> tests/expectations.rs:178:26
[INFO] [stdout]     |
[INFO] [stdout] 178 |             expect_that!(1 == 1, panics);
[INFO] [stdout]     |                          ^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 178 |             expect_that!(let _ = 1 == 1, panics);
[INFO] [stdout]     |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> tests/expectations.rs:187:26
[INFO] [stdout]     |
[INFO] [stdout] 187 |             expect_that!(1 == 1, does not panic);
[INFO] [stdout]     |                          ^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 187 |             expect_that!(let _ = 1 == 1, does not panic);
[INFO] [stdout]     |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> tests/core_matchers.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |             assert_that!(&1+1, panics);
[INFO] [stdout]    |                          ^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 34 |             assert_that!(let _ = &1+1, panics);
[INFO] [stdout]    |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> tests/core_matchers.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |         assert_that!(&1+1, does not panic);
[INFO] [stdout]    |                      ^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |         assert_that!(let _ = &1+1, does not panic);
[INFO] [stdout]    |                      +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "f598c535470665b455d7eaa1ad3f47908130eaa03442a991524044fd8d7ecc9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f598c535470665b455d7eaa1ad3f47908130eaa03442a991524044fd8d7ecc9f", kill_on_drop: false }`
[INFO] [stdout] f598c535470665b455d7eaa1ad3f47908130eaa03442a991524044fd8d7ecc9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a37e170ff88312cca252edf89eed78efd7d538f60b4c75e677775ede65cdfaf5
[INFO] running `Command { std: "docker" "start" "-a" "a37e170ff88312cca252edf89eed78efd7d538f60b4c75e677775ede65cdfaf5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/combinators.rs:49:22
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stderr]    |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/combinators.rs:116:22
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub matcher: Box<Matcher<'a,T> + 'a>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub matcher: Box<dyn Matcher<'a,T> + 'a>,
[INFO] [stderr]     |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/core.rs:43:52
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn assertion_always_succeeds<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/core.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn any_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn any_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/core.rs:71:49
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn assertion_always_fails<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/core.rs:88:35
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn no_value<'a,T:'a>() -> Box<Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn no_value<'a,T:'a>() -> Box<dyn Matcher<'a,T> + 'a> { assertion_always_fails() }
[INFO] [stderr]    |                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:101:34
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn is<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:101:62
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn is<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:117:35
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn has<'a, T:'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:117:63
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn has<'a, T:'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:130:36
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn not<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:130:64
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn not<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,T> + 'a> {
[INFO] [stderr]     |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:154:44
[INFO] [stderr]     |
[INFO] [stderr] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 154 | pub fn equal_to<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:170:62
[INFO] [stderr]     |
[INFO] [stderr] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 170 | pub fn eq<'a, T: PartialEq + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { equal_to(expected) }
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:183:45
[INFO] [stderr]     |
[INFO] [stderr] 183 | pub fn less_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 183 | pub fn less_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:198:63
[INFO] [stderr]     |
[INFO] [stderr] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 198 | pub fn lt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than(expected) }
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:211:48
[INFO] [stderr]     |
[INFO] [stderr] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 211 | pub fn greater_than<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:226:63
[INFO] [stderr]     |
[INFO] [stderr] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 226 | pub fn gt<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than(expected) }
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:240:54
[INFO] [stderr]     |
[INFO] [stderr] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 240 | pub fn less_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:256:64
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stderr]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub fn leq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { less_than_or_equal(expected) }
[INFO] [stderr]     |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:270:57
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn greater_than_or_equal<'a, T>(expected: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:286:64
[INFO] [stderr]     |
[INFO] [stderr] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stderr]     |                                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 286 | pub fn geq<'a, T: PartialOrd + Debug + 'a>(expected: T) -> Box<dyn Matcher<'a,T> + 'a> { greater_than_or_equal(expected) }
[INFO] [stderr]     |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:299:52
[INFO] [stderr]     |
[INFO] [stderr] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 299 | pub fn close_to<'a, T>(expected: T, eps: T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/core.rs:334:51
[INFO] [stderr]     |
[INFO] [stderr] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 334 | pub fn same_object<'a, T>(expected: &'a T) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/variant.rs:67:43
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/variant.rs:67:71
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Option<T>> + 'a> {
[INFO] [stderr]    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn maybe_some<'a, T: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Option<T>> + 'a> {
[INFO] [stderr]    |                                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/variant.rs:88:48
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/variant.rs:88:76
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn maybe_ok<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,T> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]    |                                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/variant.rs:109:49
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<dyn Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/variant.rs:109:77
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn maybe_err<'a, T: 'a, E: 'a>(matcher: Box<Matcher<'a,E> + 'a>) -> Box<dyn Matcher<'a,Result<T,E>> + 'a> {
[INFO] [stderr]     |                                                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/collection.rs:47:78
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stderr]    |                                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn contains_in_any_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stderr]    |                                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:109:74
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn contains_in_order<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stderr]     |                                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:166:72
[INFO] [stderr]     |
[INFO] [stderr] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<Matcher<'a,J> + 'a>
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 166 | pub fn contains_subset<'a,T:'a,I:'a,J:'a>(expected_elements: I) -> Box<dyn Matcher<'a,J> + 'a>
[INFO] [stderr]     |                                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:214:63
[INFO] [stderr]     |
[INFO] [stderr] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 214 | pub fn contained_in<'a,T:'a,I>(expected_to_contain: I) -> Box<dyn Matcher<'a,T> + 'a>
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:248:88
[INFO] [stderr]     |
[INFO] [stderr] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 248 | pub fn sorted_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:289:97
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn sorted_strictly_by<'a,T,I,P>(predicate: P, expected_ordering: std::cmp::Ordering) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:329:62
[INFO] [stderr]     |
[INFO] [stderr] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 329 | pub fn sorted_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:375:71
[INFO] [stderr]     |
[INFO] [stderr] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 375 | pub fn sorted_strictly_by_in_any_order<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:422:42
[INFO] [stderr]     |
[INFO] [stderr] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 422 | pub fn sorted_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:439:51
[INFO] [stderr]     |
[INFO] [stderr] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 439 | pub fn sorted_strictly_ascending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:456:43
[INFO] [stderr]     |
[INFO] [stderr] 456 | pub fn sorted_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 456 | pub fn sorted_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:473:52
[INFO] [stderr]     |
[INFO] [stderr] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 473 | pub fn sorted_strictly_descending<'a,T,I>() -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:490:60
[INFO] [stderr]     |
[INFO] [stderr] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 490 | pub fn all_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:518:61
[INFO] [stderr]     |
[INFO] [stderr] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 518 | pub fn some_elements_satisfy<'a,T,I,P>(predicate: P) -> Box<dyn Fn(&'a I) -> MatchResult>
[INFO] [stderr]     |                                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:566:62
[INFO] [stderr]     |
[INFO] [stderr] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 566 | pub fn has_entry<'a,K:'a,V:'a,M:'a>(key: K, value: V) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:637:50
[INFO] [stderr]     |
[INFO] [stderr] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 637 | pub fn has_key<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/collection.rs:690:52
[INFO] [stderr]     |
[INFO] [stderr] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 690 | pub fn has_value<'a,K:'a,V:'a,M:'a>(key: K) -> Box<dyn Matcher<'a,M> + 'a>
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/combinators.rs:55:28
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matchers/combinators.rs:63:35
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn and(self, matcher: Box<Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn and(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> All<'a,T> {
[INFO] [stderr]    |                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/combinators.rs:122:28
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn of(matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn of(matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matchers/combinators.rs:130:34
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn or(self, matcher: Box<Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn or(self, matcher: Box<dyn Matcher<'a,T> + 'a>) -> Any<'a,T> {
[INFO] [stderr]     |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: `galvanic-assert` (lib) generated 51 warnings (run `cargo fix --lib -p galvanic-assert` to apply 51 suggestions)
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> tests/core_matchers.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             assert_that!(&1+1, panics);
[INFO] [stderr]    |                          ^^^^ the arithmetic operation produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 34 |             assert_that!(let _ = &1+1, panics);
[INFO] [stderr]    |                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> tests/core_matchers.rs:45:22
[INFO] [stderr]    |
[INFO] [stderr] 45 |         assert_that!(&1+1, does not panic);
[INFO] [stderr]    |                      ^^^^ the arithmetic operation produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 45 |         assert_that!(let _ = &1+1, does not panic);
[INFO] [stderr]    |                      +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `galvanic-assert` (test "core_matchers") generated 2 warnings
[INFO] [stderr] warning: unused attribute `allow`
[INFO] [stderr]    --> tests/expectations.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |             #[allow(unused_variables)]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `expect_that`
[INFO] [stderr]    --> tests/expectations.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |             expect_that!(1 != 1);
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> tests/expectations.rs:91:42
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let e = get_expectation_for!(1 == 1, panics);
[INFO] [stderr]    |                                          ^^^^^^ the comparison produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let e = get_expectation_for!(let _ = 1 == 1, panics);
[INFO] [stderr]    |                                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> tests/expectations.rs:101:42
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let e = get_expectation_for!(1 == 1, does not panic);
[INFO] [stderr]     |                                          ^^^^^^ the comparison produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let e = get_expectation_for!(let _ = 1 == 1, does not panic);
[INFO] [stderr]     |                                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> tests/expectations.rs:178:26
[INFO] [stderr]     |
[INFO] [stderr] 178 |             expect_that!(1 == 1, panics);
[INFO] [stderr]     |                          ^^^^^^ the comparison produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 178 |             expect_that!(let _ = 1 == 1, panics);
[INFO] [stderr]     |                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> tests/expectations.rs:187:26
[INFO] [stderr]     |
[INFO] [stderr] 187 |             expect_that!(1 == 1, does not panic);
[INFO] [stderr]     |                          ^^^^^^ the comparison produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 187 |             expect_that!(let _ = 1 == 1, does not panic);
[INFO] [stderr]     |                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `galvanic-assert` (test "expectations") generated 5 warnings
[INFO] [stderr] warning: `galvanic-assert` (lib test) generated 51 warnings (51 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/galvanic_assert-d00fdd46a6294b1f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::should_bool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/collections_matchers.rs (/opt/rustwide/target/debug/deps/collections_matchers-ceed14b6b89545f8)
[INFO] [stdout] 
[INFO] [stdout] running 78 tests
[INFO] [stdout] test all_elements_satisfy::should_match ... ok
[INFO] [stdout] test all_elements_satisfy::should_match_empty_collection ... ok
[INFO] [stdout] test contains_in_order::should_match ... ok
[INFO] [stdout] test contains_in_order::should_match_empty_collection ... ok
[INFO] [stdout] test contains_subset::should_match ... ok
[INFO] [stdout] test contained_in::should_match ... ok
[INFO] [stdout] test has_entry::hash_map::should_match ... ok
[INFO] [stdout] test contains_in_any_order::should_match ... ok
[INFO] [stdout] test contains_subset::should_match_empty_subset ... ok
[INFO] [stdout] test contains_subset::should_match_empty_collection ... ok
[INFO] [stdout] test has_key::hash_map::should_match ... ok
[INFO] [stdout] test has_entry::ordered_map::should_match ... ok
[INFO] [stdout] test has_key::ordered_map::should_match ... ok
[INFO] [stdout] test contains_in_any_order::should_match_empty_collection ... ok
[INFO] [stdout] test all_elements_satisfy::should_fail ... ok
[INFO] [stdout] test some_elements_satisfy::should_match ... ok
[INFO] [stdout] test contains_in_any_order::should_fail_due_to_missing_element ... ok
[INFO] [stdout] test contains_in_any_order::should_fail_due_to_unexpected_element ... ok
[INFO] [stdout] test contained_in::should_fail ... ok
[INFO] [stdout] test sorted_ascending::should_match ... ok
[INFO] [stdout] test contains_in_order::should_fail_due_to_unordered_element ... ok
[INFO] [stdout] test sorted_by::should_fail_unordered ... ok
[INFO] [stdout] test sorted_ascending::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_by::should_match ... ok
[INFO] [stdout] test sorted_by::should_match_all_eq ... ok
[INFO] [stdout] test sorted_by::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_by::should_match_eq_then_ordered ... ok
[INFO] [stdout] test sorted_by::should_match_single_element ... ok
[INFO] [stdout] test sorted_by::should_match_some_eq ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_fail_some_eq_then_unordered ... ok
[INFO] [stdout] test contains_in_order::should_fail_due_to_missing_element ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_all_eq ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_eq_then_ordered ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_single_element ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_sorted_ascending ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_match_sorted_descending ... ok
[INFO] [stdout] test has_entry::hash_map::should_fail_due_to_wrong_entry ... ok
[INFO] [stdout] test has_entry::hash_map::should_fail_due_to_missing_key ... ok
[INFO] [stdout] test sorted_descending::should_match ... ok
[INFO] [stdout] test sorted_descending::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_descending::should_fail ... ok
[INFO] [stdout] test has_entry::ordered_map::should_fail_due_to_missing_key ... ok
[INFO] [stdout] test sorted_strictly_ascending::should_match ... ok
[INFO] [stdout] test sorted_strictly_ascending::should_match_empty_collection ... ok
[INFO] [stdout] test has_key::hash_map::should_fail_due_to_missing_key ... ok
[INFO] [stdout] test sorted_strictly_by::should_fail_all_eq ... ok
[INFO] [stdout] test has_key::ordered_map::should_fail_due_to_missing_key ... ok
[INFO] [stdout] test sorted_strictly_by::should_fail_unordered ... ok
[INFO] [stdout] test sorted_strictly_by::should_match ... ok
[INFO] [stdout] test sorted_strictly_by::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_strictly_by::should_match_single_element ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_fail_all_eq ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_fail_unordered ... ok
[INFO] [stdout] test some_elements_satisfy::should_fail_empty_collection ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_ascending::should_fail_reversed ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_match_single_element ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_match_sorted_strictly_ascending ... ok
[INFO] [stdout] test sorted_ascending::should_fail_unordered ... ok
[INFO] [stdout] test contains_subset::should_fail_due_to_missing_element ... ok
[INFO] [stdout] test sorted_by_in_any_order::should_fail_unordered ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_match_sorted_strictly_descending ... ok
[INFO] [stdout] test sorted_by::should_fail_some_eq_then_unordered ... ok
[INFO] [stdout] test contains_in_order::should_fail_due_to_unexpected_element ... ok
[INFO] [stdout] test sorted_strictly_descending::should_match ... ok
[INFO] [stdout] test sorted_strictly_descending::should_match_empty_collection ... ok
[INFO] [stdout] test sorted_descending::should_fail_reversed ... ok
[INFO] [stdout] test sorted_strictly_descending::should_fail_unordered ... ok
[INFO] [stdout] test sorted_strictly_ascending::should_fail_reversed ... ok
[INFO] [stdout] test has_entry::ordered_map::should_fail_due_to_wrong_entry ... ok
[INFO] [stdout] test sorted_strictly_ascending::should_fail_unordered ... ok
[INFO] [stdout] test sorted_strictly_by::should_fail_not_strict ... ok
[INFO] [stdout] test some_elements_satisfy::should_fail ... ok
[INFO] [stdout] test sorted_strictly_by_in_any_order::should_fail_not_strict ... ok
[INFO] [stdout] test sorted_strictly_descending::should_fail_not_strict ... ok
[INFO] [stdout] test sorted_strictly_ascending::should_fail_not_strict ... ok
[INFO] [stdout] test sorted_strictly_descending::should_fail_reversed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 78 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/combinator_matchers.rs (/opt/rustwide/target/debug/deps/combinator_matchers-f5e0fa93645c71eb)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test all_of::should_match_with_macro ... ok
[INFO] [stdout] test any_of::should_match_if_none_fails ... ok
[INFO] [stdout] test all_of::should_match ... ok
[INFO] [stdout] test combining_combinators::should_match_combined_not_any ... ok
[INFO] [stdout] test any_of::should_match_if_some_fails ... ok
[INFO] [stdout] test any_of::should_match_with_macro ... ok
[INFO] [stdout] test combining_combinators::should_match_combined_all_any ... ok
[INFO] [stdout] test combining_variant_matchers::should_match ... ok
[INFO] [stdout] test combining_combinators::should_match_combined_any_all ... ok
[INFO] [stdout] test all_of::should_fail ... ok
[INFO] [stdout] test any_of::should_fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/core_matchers.rs (/opt/rustwide/target/debug/deps/core_matchers-e3cd34bba6cdaaad)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test assert_expression::should_assert_an_expression_to_be_true ... ok
[INFO] [stdout] test assert_does_not_panic::should_assert_that_no_panic_occurred ... ok
[INFO] [stdout] test assert_expression::should_assert_an_expression_to_be_true_with_reason ... ok
[INFO] [stdout] test close_to::should_match ... ok
[INFO] [stdout] test greater_than::should_match ... ok
[INFO] [stdout] test eq::should_match ... ok
[INFO] [stdout] test greater_than_or_equal::should_match ... ok
[INFO] [stdout] test has_structure::enum_like::should_match ... ok
[INFO] [stdout] test has_structure::struct_like::should_match_incomplete_field_list ... ok
[INFO] [stdout] test has_structure::tuple_like::should_match ... ok
[INFO] [stdout] test has_structure::struct_like::should_match ... ok
[INFO] [stdout] test invariants::assertion_should_succeed ... ok
[INFO] [stdout] test less_than::should_match ... ok
[INFO] [stdout] test less_than_or_equal::should_match ... ok
[INFO] [stdout] test assert_expression::should_fail_to_assert_an_expression_to_be_true_with_reason ... ok
[INFO] [stdout] test not::should_invert_success ... ok
[INFO] [stdout] test greater_than::should_fail ... ok
[INFO] [stdout] test same_object::should_match ... ok
[INFO] [stdout] test eq::should_fail ... ok
[INFO] [stdout] test assert_panic::should_fail_to_assert_a_panic ... ok
[INFO] [stdout] test assert_expression::should_fail_to_assert_an_expression_to_be_true ... ok
[INFO] [stdout] test greater_than_or_equal::should_fail ... ok
[INFO] [stdout] test close_to::should_fail ... ok
[INFO] [stdout] test invariants::assertion_should_fail ... ok
[INFO] [stdout] test has_structure::tuple_like::should_fail - should panic ... ok
[INFO] [stdout] test less_than_or_equal::should_fail ... ok
[INFO] [stdout] test not::should_invert_fail ... ok
[INFO] [stdout] test assert_does_not_panic::should_fail_to_assert_a_panic ... ok
[INFO] [stdout] test assert_panic::should_assert_a_panic ... ok
[INFO] [stdout] test same_object::should_fail ... FAILED
[INFO] [stdout] test has_structure::struct_like::should_fail - should panic ... ok
[INFO] [stdout] test has_structure::enum_like::should_fail ... ok
[INFO] [stdout] test less_than::should_fail ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- same_object::should_fail stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'same_object::should_fail' panicked at tests/core_matchers.rs:264:9:
[INFO] [stdout] 
[INFO] [stdout] Failed assertion; expected expression to panic
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58bb2d4f7512 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58bb2d4f7512 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58bb2d4f7512 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58bb2d4f7512 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58bb2d51ca93 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58bb2d51ca93 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x58bb2d4f44a3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58bb2d4f44a3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58bb2d4f7362 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58bb2d4f8a8c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x58bb2d4f88e2 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x58bb2d4c0884 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x58bb2d4c0884 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58bb2d4f956b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x58bb2d4f956b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x58bb2d4f937c - std::panicking::begin_panic::{{closure}}::h13865f7f56367b41
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:770:9
[INFO] [stdout]   16:     0x58bb2d4f7a19 - std::sys::backtrace::__rust_end_short_backtrace::h41e1700e19349ed1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x58bb2d4f9292 - std::panicking::begin_panic::h6990e2ce2677fde3
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:769:5
[INFO] [stdout]   18:     0x58bb2d47fdc9 - core_matchers::same_object::should_fail::hca7552e2b1f74d52
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/core_matchers.rs:264:9
[INFO] [stdout]   19:     0x58bb2d482b89 - core_matchers::same_object::should_fail::{{closure}}::ha72f98532dd81626
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/core_matchers.rs:261:21
[INFO] [stdout]   20:     0x58bb2d482b89 - core::ops::function::FnOnce::call_once::h370a7f4b0cd2e3a7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x58bb2d4c5fbb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x58bb2d4c5fbb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   23:     0x58bb2d4c51fe - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   24:     0x58bb2d4c51fe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   25:     0x58bb2d4c51fe - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   26:     0x58bb2d4c51fe - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   27:     0x58bb2d4c51fe - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   28:     0x58bb2d4c51fe - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   29:     0x58bb2d4c51fe - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   30:     0x58bb2d488da4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   31:     0x58bb2d488da4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   32:     0x58bb2d48c74a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   33:     0x58bb2d48c74a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   34:     0x58bb2d48c74a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   35:     0x58bb2d48c74a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   36:     0x58bb2d48c74a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   37:     0x58bb2d48c74a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   38:     0x58bb2d48c74a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x58bb2d4fc4c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   40:     0x58bb2d4fc4c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   41:     0x58bb2d4fc4c7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   42:     0x7805226ffaa4 - <unknown>
[INFO] [stdout]   43:     0x78052278ca34 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     same_object::should_fail
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 32 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test core_matchers`
[INFO] running `Command { std: "docker" "inspect" "a37e170ff88312cca252edf89eed78efd7d538f60b4c75e677775ede65cdfaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37e170ff88312cca252edf89eed78efd7d538f60b4c75e677775ede65cdfaf5", kill_on_drop: false }`
[INFO] [stdout] a37e170ff88312cca252edf89eed78efd7d538f60b4c75e677775ede65cdfaf5
