[INFO] fetching crate zapper 0.9.1...
[INFO] checking zapper-0.9.1 against try#163937523761cc0def32f1ba9ed63fdf65ad3478 for pr-156749
[INFO] extracting crate zapper 0.9.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate zapper 0.9.1
[INFO] finished tweaking crates.io crate zapper 0.9.1
[INFO] tweaked toml for crates.io crate zapper 0.9.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zapper 0.9.1 on toolchain 163937523761cc0def32f1ba9ed63fdf65ad3478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "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" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.8.2)
[INFO] [stderr]       Adding handlebars v0.32.4 (available: v6.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `zapper` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b
[INFO] running `Command { std: "docker" "start" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `zapper` (manifest) generated 1 warning
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]    Compiling zapper_derive v0.9.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking handlebars v0.32.4
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking zapper v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn num_constant(&self, &str) -> Option<f64>;
[INFO] [stdout]    |                            ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn str_constant(&'a self, &str) -> Option<Cow<'a, str>>;
[INFO] [stdout]    |                               ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn num_var(&str) -> Option<NumEnum>;
[INFO] [stdout]    |                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn str_var(&str) -> Option<StrEnum>;
[INFO] [stdout]    |                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn filter(&str) -> Option<(FilterEnum, usize, FilterInput<StrEnum>)>;
[INFO] [stdout]    |               ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn num_var(&self, NumEnum) -> f64;
[INFO] [stdout]    |                       ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: NumEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<str>;
[INFO] [stdout]    |                       ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: StrEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:26
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                          ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:38
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:46
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                                              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:25
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                         ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:37
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:45
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: StrEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                                      ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut String`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                          ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:38
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:46
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                              ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Cow<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:56
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                                        ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut String`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:124:18
[INFO] [stdout]     |
[INFO] [stdout] 124 |         runner: &Runner<NumEnum, StrEnum, FilterEnum>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |         runner: &dyn Runner<NumEnum, StrEnum, FilterEnum>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |         output: &mut Write,
[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/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] 125 |         output: &mut dyn Write,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:145:18
[INFO] [stdout]     |
[INFO] [stdout] 145 |         runner: &Runner<NumEnum, StrEnum, FilterEnum>,
[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/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] 145 |         runner: &dyn Runner<NumEnum, StrEnum, FilterEnum>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |         output: &mut Write,
[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/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] 146 |         output: &mut dyn Write,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<str>;
[INFO] [stdout]    |                ^^^^^              ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<'_, str>;
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn num_constant(&self, &str) -> Option<f64>;
[INFO] [stdout]    |                            ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn str_constant(&'a self, &str) -> Option<Cow<'a, str>>;
[INFO] [stdout]    |                               ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn num_var(&str) -> Option<NumEnum>;
[INFO] [stdout]    |                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn str_var(&str) -> Option<StrEnum>;
[INFO] [stdout]    |                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn filter(&str) -> Option<(FilterEnum, usize, FilterInput<StrEnum>)>;
[INFO] [stdout]    |               ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn num_var(&self, NumEnum) -> f64;
[INFO] [stdout]    |                       ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: NumEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<str>;
[INFO] [stdout]    |                       ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: StrEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:26
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                          ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:38
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:49:46
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn filter_num(&self, FilterEnum, &[f64], f64) -> f64;
[INFO] [stdout]    |                                              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:25
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                         ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:37
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:45
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: StrEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn filter_id(&self, FilterEnum, &[f64], StrEnum, &mut String);
[INFO] [stdout]    |                                                      ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut String`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                          ^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: FilterEnum`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:38
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:46
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                              ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Cow<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:53:56
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn filter_str(&self, FilterEnum, &[f64], Cow<str>, &mut String);
[INFO] [stdout]    |                                                        ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut String`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:124:18
[INFO] [stdout]     |
[INFO] [stdout] 124 |         runner: &Runner<NumEnum, StrEnum, FilterEnum>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |         runner: &dyn Runner<NumEnum, StrEnum, FilterEnum>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |         output: &mut Write,
[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/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] 125 |         output: &mut dyn Write,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:145:18
[INFO] [stdout]     |
[INFO] [stdout] 145 |         runner: &Runner<NumEnum, StrEnum, FilterEnum>,
[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/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] 145 |         runner: &dyn Runner<NumEnum, StrEnum, FilterEnum>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bytecode.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |         output: &mut Write,
[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/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] 146 |         output: &mut dyn Write,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/manual_example.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn str_constant(&self, name: &str) -> Option<Cow<str>> {
[INFO] [stdout]    |                     ^^^^^                        ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn str_constant(&self, name: &str) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/manual_example.rs:90:16
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn str_var(&self, var: PersonStrs) -> Cow<str> {
[INFO] [stdout]    |                ^^^^^                      ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn str_var(&self, var: PersonStrs) -> Cow<'_, str> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<str>;
[INFO] [stdout]    |                ^^^^^              ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn str_var(&self, StrEnum) -> Cow<'_, str>;
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11, syn v0.13.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b", kill_on_drop: false }`
[INFO] [stdout] 606778e4fa8908dc4f5bd89a1c9170674c9cceaa6cffff716a3758b2372f577b
