[INFO] fetching crate topdown-rs 0.3.3...
[INFO] testing topdown-rs-0.3.3 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate topdown-rs 0.3.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate topdown-rs 0.3.3
[INFO] finished tweaking crates.io crate topdown-rs 0.3.3
[INFO] tweaked toml for crates.io crate topdown-rs 0.3.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate topdown-rs 0.3.3 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding regex v0.1.80 (available: v1.12.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db30c794bb18ec6d66e0702d73568740c839117f43ec1bac045d9750cb49e8de
[INFO] running `Command { std: "docker" "start" "-a" "db30c794bb18ec6d66e0702d73568740c839117f43ec1bac045d9750cb49e8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db30c794bb18ec6d66e0702d73568740c839117f43ec1bac045d9750cb49e8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db30c794bb18ec6d66e0702d73568740c839117f43ec1bac045d9750cb49e8de", kill_on_drop: false }`
[INFO] [stdout] db30c794bb18ec6d66e0702d73568740c839117f43ec1bac045d9750cb49e8de
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13993be12e6742db5b3cc21bc395118398c125c771378aaab0d26f47a77312aa
[INFO] running `Command { std: "docker" "start" "-a" "13993be12e6742db5b3cc21bc395118398c125c771378aaab0d26f47a77312aa", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling topdown-rs v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parsers: &'a [&'a(Parser<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/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] 4 |     parsers: &'a [&'a(dyn Parser<T>+'a)]
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T> + 'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cond: &'a (Parser<S> + '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/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] 4 |     cond: &'a (dyn Parser<S> + 'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<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/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] 5 |     parser: &'a (dyn Parser<T> + 'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     delim: &'a (Parser<String>+'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/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] 5 |     delim: &'a (dyn Parser<String>+'a),
[INFO] [stdout]   |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<S>+'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/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] 5 |     parser: &'a (dyn Parser<S>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     stop: &'a (Parser<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/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] 6 |     stop: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |     hooks: Vec<&'a (ParserHook+'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/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 |     hooks: Vec<&'a (dyn ParserHook+'a)>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn choice<'a, T>(p: &'a [&'a (Parser<T> + 'a)]) -> Choice<'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/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] 7 | pub fn choice<'a, T>(p: &'a [&'a (dyn Parser<T> + 'a)]) -> Choice<'a, T> {
[INFO] [stdout]   |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn until<'a, T>(t:&'a (Parser<T>+'a)) -> Until<'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/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] 7 | pub fn until<'a, T>(t:&'a (dyn Parser<T>+'a)) -> Until<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many<'a, T>(p: &'a (Parser<T> + 'a)) -> Many<'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/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] 7 | pub fn many<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many1<'a, T>(p: &'a (Parser<T> + 'a)) -> Many1<'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/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] 7 | pub fn many1<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many1<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn try<'a, T>(p: &'a(Parser<T>+'a)) -> Try<'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/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] 7 | pub fn try<'a, T>(p: &'a(dyn Parser<T>+'a)) -> Try<'a, T> {
[INFO] [stdout]   |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (dyn Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (dyn Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn opt<'a, T:Clone>(p:&'a (Parser<T>+'a), d: T) -> Opt<'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/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] 8 | pub fn opt<'a, T:Clone>(p:&'a (dyn Parser<T>+'a), d: T) -> Opt<'a, T> {
[INFO] [stdout]   |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (dyn Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (dyn Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (dyn Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (dyn Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:43
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn add_hook(&mut self, hook: &'a (ParserHook+'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/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] 178 |     pub fn add_hook(&mut self, hook: &'a (dyn ParserHook+'a)) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:195:37
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn accept<T>(&mut self, p: &Parser<T>) -> ParserResult<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/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] 195 |     pub fn accept<T>(&mut self, p: &dyn Parser<T>) -> ParserResult<T> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/keyword.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn keyword<'a>(k: &'a str) -> Keyword {
[INFO] [stdout]   |                        --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                        |
[INFO] [stdout]   |                        the lifetime is named 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: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn keyword<'a>(k: &'a str) -> Keyword<'a> {
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "13993be12e6742db5b3cc21bc395118398c125c771378aaab0d26f47a77312aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13993be12e6742db5b3cc21bc395118398c125c771378aaab0d26f47a77312aa", kill_on_drop: false }`
[INFO] [stdout] 13993be12e6742db5b3cc21bc395118398c125c771378aaab0d26f47a77312aa
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1ffb3a335f44b5bd3a215073e88243baf88d689b41d3f2637499c97407eb276
[INFO] running `Command { std: "docker" "start" "-a" "b1ffb3a335f44b5bd3a215073e88243baf88d689b41d3f2637499c97407eb276", 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/chainl.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parsers: &'a [&'a(Parser<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/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] 4 |     parsers: &'a [&'a(dyn Parser<T>+'a)]
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T> + 'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cond: &'a (Parser<S> + '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/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] 4 |     cond: &'a (dyn Parser<S> + 'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<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/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] 5 |     parser: &'a (dyn Parser<T> + 'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     delim: &'a (Parser<String>+'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/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] 5 |     delim: &'a (dyn Parser<String>+'a),
[INFO] [stdout]   |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<S>+'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/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] 5 |     parser: &'a (dyn Parser<S>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     stop: &'a (Parser<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/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] 6 |     stop: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |     hooks: Vec<&'a (ParserHook+'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/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 |     hooks: Vec<&'a (dyn ParserHook+'a)>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn choice<'a, T>(p: &'a [&'a (Parser<T> + 'a)]) -> Choice<'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/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] 7 | pub fn choice<'a, T>(p: &'a [&'a (dyn Parser<T> + 'a)]) -> Choice<'a, T> {
[INFO] [stdout]   |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn until<'a, T>(t:&'a (Parser<T>+'a)) -> Until<'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/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] 7 | pub fn until<'a, T>(t:&'a (dyn Parser<T>+'a)) -> Until<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many<'a, T>(p: &'a (Parser<T> + 'a)) -> Many<'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/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] 7 | pub fn many<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many1<'a, T>(p: &'a (Parser<T> + 'a)) -> Many1<'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/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] 7 | pub fn many1<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many1<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn try<'a, T>(p: &'a(Parser<T>+'a)) -> Try<'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/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] 7 | pub fn try<'a, T>(p: &'a(dyn Parser<T>+'a)) -> Try<'a, T> {
[INFO] [stdout]   |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (dyn Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (dyn Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn opt<'a, T:Clone>(p:&'a (Parser<T>+'a), d: T) -> Opt<'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/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] 8 | pub fn opt<'a, T:Clone>(p:&'a (dyn Parser<T>+'a), d: T) -> Opt<'a, T> {
[INFO] [stdout]   |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (dyn Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (dyn Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (dyn Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (dyn Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:43
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn add_hook(&mut self, hook: &'a (ParserHook+'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/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] 178 |     pub fn add_hook(&mut self, hook: &'a (dyn ParserHook+'a)) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling topdown-rs v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:195:37
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn accept<T>(&mut self, p: &Parser<T>) -> ParserResult<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/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] 195 |     pub fn accept<T>(&mut self, p: &dyn Parser<T>) -> ParserResult<T> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/keyword.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn keyword<'a>(k: &'a str) -> Keyword {
[INFO] [stdout]   |                        --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                        |
[INFO] [stdout]   |                        the lifetime is named 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: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn keyword<'a>(k: &'a str) -> Keyword<'a> {
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> examples/interpreter/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.70.0; see <https://github.com/rust-lang/rust/pull/108471> for more information
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |             "*" => (Box::new(|&: a:AST, b:AST| BinOp(MUL, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:343:32
[INFO] [stdout]     |
[INFO] [stdout] 343 |             "/" => (Box::new(|&: a:AST, b:AST| BinOp(DIV, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:344:32
[INFO] [stdout]     |
[INFO] [stdout] 344 |             "%" => (Box::new(|&: a:AST, b:AST| BinOp(MOD, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:353:32
[INFO] [stdout]     |
[INFO] [stdout] 353 |             "+" => (Box::new(|&: a:AST, b:AST| BinOp(ADD, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:354:32
[INFO] [stdout]     |
[INFO] [stdout] 354 |             "-" => (Box::new(|&: a:AST, b:AST| BinOp(SUB, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:355:33
[INFO] [stdout]     |
[INFO] [stdout] 355 |             "==" => (Box::new(|&: a:AST, b:AST| BinOp(EQ, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:356:33
[INFO] [stdout]     |
[INFO] [stdout] 356 |             "!=" => (Box::new(|&: a:AST, b:AST| BinOp(NE, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:357:32
[INFO] [stdout]     |
[INFO] [stdout] 357 |             ">" => (Box::new(|&: a:AST, b:AST| BinOp(GT, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:358:33
[INFO] [stdout]     |
[INFO] [stdout] 358 |             ">=" => (Box::new(|&: a:AST, b:AST| BinOp(GE, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |             "<" => (Box::new(|&: a:AST, b:AST| BinOp(LT, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:360:33
[INFO] [stdout]     |
[INFO] [stdout] 360 |             "<=" => (Box::new(|&: a:AST, b:AST| BinOp(LE, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:369:33
[INFO] [stdout]     |
[INFO] [stdout] 369 |             "||" => (Box::new(|&: a:AST, b:AST| BinOp(LOR, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]    --> examples/interpreter/parser.rs:370:33
[INFO] [stdout]     |
[INFO] [stdout] 370 |             "&&" => (Box::new(|&: a:AST, b:AST| BinOp(LAND, Box::new(a.clone()), Box::new(b.clone())))) as Box<Fn(AST, AST) -> AST>,
[INFO] [stdout]     |                                 ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> examples/interpreter/interpreter.rs:449:20
[INFO] [stdout]     |
[INFO] [stdout] 449 |                 Ok(box String_(s.clone()))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 449 -                 Ok(box String_(s.clone()))
[INFO] [stdout] 449 +                 Ok(Box::new(String_(s.clone())))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> examples/interpreter/interpreter.rs:456:20
[INFO] [stdout]     |
[INFO] [stdout] 456 |                 Ok(box String_(s.clone()))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 456 -                 Ok(box String_(s.clone()))
[INFO] [stdout] 456 +                 Ok(Box::new(String_(s.clone())))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> examples/interpreter/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::old_io::File;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]   --> examples/interpreter/parser.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Show, Clone)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]   --> examples/interpreter/parser.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Clone, Copy, Show)]
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stdout]   --> examples/interpreter/parser.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl fmt::Show for BinOps {
[INFO] [stdout]    |           ^^^^ not found in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]    --> examples/interpreter/interpreter.rs:453:26
[INFO] [stdout]     |
[INFO] [stdout] 453 |                 for i in range(0, r) {
[INFO] [stdout]     |                          ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::slice::range;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> examples/interpreter/main.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let a = os::args();
[INFO] [stdout]    |                 ^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout]  7 + use std::env::args;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `args`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 17 -     let a = os::args();
[INFO] [stdout] 17 +     let a = args();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> examples/interpreter/main.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let path = Path::new(a[1].clone());
[INFO] [stdout]    |                ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  7 + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/interpreter/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/interpreter/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slicing_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slicing_syntax` has been stable since `1.0.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/interpreter/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unstable`
[INFO] [stdout]  --> examples/interpreter/main.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![allow(unstable)]
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     term: &'a (Parser<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/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] 4 |     term: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     operator: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'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/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] 5 |     operator: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a),
[INFO] [stdout]   |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parsers: &'a [&'a(Parser<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/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] 4 |     parsers: &'a [&'a(dyn Parser<T>+'a)]
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T> + 'a)
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cond: &'a (Parser<S> + '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/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] 4 |     cond: &'a (dyn Parser<S> + 'a),
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<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/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] 5 |     parser: &'a (dyn Parser<T> + 'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parser: &'a (Parser<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/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] 4 |     parser: &'a (dyn Parser<T>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     delim: &'a (Parser<String>+'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/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] 5 |     delim: &'a (dyn Parser<String>+'a),
[INFO] [stdout]   |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |     parser: &'a (Parser<S>+'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/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] 5 |     parser: &'a (dyn Parser<S>+'a),
[INFO] [stdout]   |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     stop: &'a (Parser<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/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] 6 |     stop: &'a (dyn Parser<T>+'a)
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |     hooks: Vec<&'a (ParserHook+'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/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 |     hooks: Vec<&'a (dyn ParserHook+'a)>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainl.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |     impl<'a> Parser<Box<Fn(isize, isize) -> isize + 'a>> for Op<'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/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] 56 |     impl<'a> Parser<Box<dyn Fn(isize, isize) -> isize + 'a>> for Op<'a> {
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainr.rs:49:25
[INFO] [stdout]    |
[INFO] [stdout] 49 |     impl<'a> Parser<Box<Fn(isize, isize) -> isize + 'a>> for Op<'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/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] 49 |     impl<'a> Parser<Box<dyn Fn(isize, isize) -> isize + 'a>> for Op<'a> {
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainl.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'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/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] 9 | pub fn chainl<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>>+'a), a: bool) -> Chainl<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (dyn Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:53
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (dyn Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/chainr.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'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/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] 9 | pub fn chainr<'a, T>(p: &'a (Parser<T>+'a), o: &'a (Parser<Box<dyn Fn(T, T) -> T + 'a>> + 'a), a: bool) -> Chainr<'a, T> {
[INFO] [stdout]   |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/choice.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn choice<'a, T>(p: &'a [&'a (Parser<T> + 'a)]) -> Choice<'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/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] 7 | pub fn choice<'a, T>(p: &'a [&'a (dyn Parser<T> + 'a)]) -> Choice<'a, T> {
[INFO] [stdout]   |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/until.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn until<'a, T>(t:&'a (Parser<T>+'a)) -> Until<'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/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] 7 | pub fn until<'a, T>(t:&'a (dyn Parser<T>+'a)) -> Until<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many<'a, T>(p: &'a (Parser<T> + 'a)) -> Many<'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/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] 7 | pub fn many<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many<'a, T> {
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many1.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn many1<'a, T>(p: &'a (Parser<T> + 'a)) -> Many1<'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/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] 7 | pub fn many1<'a, T>(p: &'a (dyn Parser<T> + 'a)) -> Many1<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/try.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn try<'a, T>(p: &'a(Parser<T>+'a)) -> Try<'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/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] 7 | pub fn try<'a, T>(p: &'a(dyn Parser<T>+'a)) -> Try<'a, T> {
[INFO] [stdout]   |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (dyn Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/cond.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (Parser<T> + 'a), e: T) -> Cond<'a, S, 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/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] 9 | pub fn cond<'a, S, T:Clone>(c: &'a (Parser<S> + 'a), p: &'a (dyn Parser<T> + 'a), e: T) -> Cond<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/opt.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn opt<'a, T:Clone>(p:&'a (Parser<T>+'a), d: T) -> Opt<'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/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] 8 | pub fn opt<'a, T:Clone>(p:&'a (dyn Parser<T>+'a), d: T) -> Opt<'a, T> {
[INFO] [stdout]   |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (dyn Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/split.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (Parser<String> + 'a), a: bool) -> Split<'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/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] 9 | pub fn split<'a, T>(p: &'a (Parser<T> + 'a), d: &'a (dyn Parser<String> + 'a), a: bool) -> Split<'a, T> {
[INFO] [stdout]   |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (dyn Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/many_until.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (Parser<T> + 'a)) -> ManyUntil<'a, S, 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/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] 9 | pub fn many_until<'a, S, T>(p: &'a (Parser<S> + 'a), s: &'a (dyn Parser<T> + 'a)) -> ManyUntil<'a, S, T> {
[INFO] [stdout]   |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainl.rs:57:64
[INFO] [stdout]    |
[INFO] [stdout] 57 |         fn _parse(&self, cs: &mut CharSeq) -> ParserResult<Box<Fn(isize, isize) -> isize + '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/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] 57 |         fn _parse(&self, cs: &mut CharSeq) -> ParserResult<Box<dyn Fn(isize, isize) -> isize + 'a>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainr.rs:50:64
[INFO] [stdout]    |
[INFO] [stdout] 50 |         fn _parse(&self, cs: &mut CharSeq) -> ParserResult<Box<Fn(isize, isize) -> isize + '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/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] 50 |         fn _parse(&self, cs: &mut CharSeq) -> ParserResult<Box<dyn Fn(isize, isize) -> isize + 'a>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:43
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn add_hook(&mut self, hook: &'a (ParserHook+'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/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] 178 |     pub fn add_hook(&mut self, hook: &'a (dyn ParserHook+'a)) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:195:37
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn accept<T>(&mut self, p: &Parser<T>) -> ParserResult<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/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] 195 |     pub fn accept<T>(&mut self, p: &dyn Parser<T>) -> ParserResult<T> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slicing_syntax` has been stable since 1.0.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/interpreter/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slicing_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: lifetime parameter `'a` is never used
[INFO] [stdout]   --> src/chainl.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |     struct Op<'a>;
[INFO] [stdout]    |               ^^ unused lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: lifetime parameter `'a` is never used
[INFO] [stdout]   --> src/chainr.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |     struct Op<'a>;
[INFO] [stdout]    |               ^^ unused lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `topdown-rs` (example "interpreter") due to 26 previous errors; 5 warnings emitted
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/interpreter/parser.rs:339:50
[INFO] [stdout]     |
[INFO] [stdout] 339 | fn op0<'a>(cs: &mut CharSeq) -> ParserResult<Box<Fn(AST, AST) -> AST + '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/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] 339 | fn op0<'a>(cs: &mut CharSeq) -> ParserResult<Box<dyn Fn(AST, AST) -> AST + 'a>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/interpreter/parser.rs:350:50
[INFO] [stdout]     |
[INFO] [stdout] 350 | fn op1<'a>(cs: &mut CharSeq) -> ParserResult<Box<Fn(AST, AST) -> AST + '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/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] 350 | fn op1<'a>(cs: &mut CharSeq) -> ParserResult<Box<dyn Fn(AST, AST) -> AST + 'a>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/interpreter/parser.rs:366:50
[INFO] [stdout]     |
[INFO] [stdout] 366 | fn op2<'a>(cs: &mut CharSeq) -> ParserResult<Box<Fn(AST, AST) -> AST + '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/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] 366 | fn op2<'a>(cs: &mut CharSeq) -> ParserResult<Box<dyn Fn(AST, AST) -> AST + 'a>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425, E0432, E0433, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/re.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 assert_eq!(c[0].as_slice(), "int");
[INFO] [stdout]    |                                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/re.rs:55:33
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 assert_eq!(c[1].as_slice(), "x");
[INFO] [stdout]    |                                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/re.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 assert_eq!(c[2].as_slice(), "10");
[INFO] [stdout]    |                                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainl.rs:61:75
[INFO] [stdout]    |
[INFO] [stdout] 61 |                         return (Box::new(|a:isize, b:isize|  a+b)) as Box<Fn(isize, isize) -> isize + '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/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] 61 |                         return (Box::new(|a:isize, b:isize|  a+b)) as Box<dyn Fn(isize, isize) -> isize + 'a>;
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainl.rs:63:75
[INFO] [stdout]    |
[INFO] [stdout] 63 |                         return (Box::new(|a:isize, b:isize|  a-b)) as Box<Fn(isize, isize) -> isize + '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/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 |                         return (Box::new(|a:isize, b:isize|  a-b)) as Box<dyn Fn(isize, isize) -> isize + 'a>;
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/chainl.rs:73:60
[INFO] [stdout]    |
[INFO] [stdout] 73 |             return cs.accept(&re("[1-9][0-9]*")).map(|x| x.as_slice().parse().unwrap());
[INFO] [stdout]    |                                                            ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainr.rs:54:80
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   return (Box::new(|a:isize, b:isize|  a+b)) as Box<Fn(isize, isize) -> isize + '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/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] 54 |                              return (Box::new(|a:isize, b:isize|  a+b)) as Box<dyn Fn(isize, isize) -> isize + 'a>;
[INFO] [stdout]    |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/chainr.rs:56:80
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   return (Box::new(|a:isize, b:isize|  a-b)) as Box<Fn(isize, isize) -> isize + '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/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] 56 |                              return (Box::new(|a:isize, b:isize|  a-b)) as Box<dyn Fn(isize, isize) -> isize + 'a>;
[INFO] [stdout]    |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/chainr.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 |             return cs.accept(&re("[1-9][0-9]*")).map(|x| x.as_slice().parse().unwrap());
[INFO] [stdout]    |                                                            ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/choice.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let l: &[&Parser<String>] = &[&("abc"), &("def")];
[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] 51 |         let l: &[&dyn Parser<String>] = &[&("abc"), &("def")];
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/choice.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Succ(c) => assert!(c.as_slice() == "abc"),
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/choice.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let l: &[&Parser<String>] = &[&("ghi"), &("def")];
[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] 63 |         let l: &[&dyn Parser<String>] = &[&("ghi"), &("def")];
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/choice.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let l: &[&Parser<String>] = &[&a, &b];
[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] 77 |         let l: &[&dyn Parser<String>] = &[&a, &b];
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]   --> src/many1.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     x.push_str(i.as_slice());
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/skip.rs:46:37
[INFO] [stdout]    |
[INFO] [stdout] 46 |             Succ(r) => assert_eq!(r.as_slice(), "a"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/skip.rs:51:37
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Succ(r) => assert_eq!(r.as_slice(), "b"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/skip.rs:56:37
[INFO] [stdout]    |
[INFO] [stdout] 56 |             Succ(r) => assert_eq!(r.as_slice(), "c"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/skip.rs:61:37
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Succ(r) => assert_eq!(r.as_slice(), "d"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/cond.rs:39:37
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Succ(r) => assert_eq!(r.as_slice(), "b"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/cond.rs:51:37
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Succ(r) => assert_eq!(r.as_slice(), "default"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/opt.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Succ(c) => assert!(c.as_slice() == "abc"),
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/opt.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Succ(c) => assert!(c.as_slice() == "opt"),
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/wrapper.rs:61:37
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Succ(x) => assert_eq!(x.as_slice(), "xxx"),
[INFO] [stdout]    |                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `topdown-rs` (lib test) due to 18 previous errors; 50 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b1ffb3a335f44b5bd3a215073e88243baf88d689b41d3f2637499c97407eb276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ffb3a335f44b5bd3a215073e88243baf88d689b41d3f2637499c97407eb276", kill_on_drop: false }`
[INFO] [stdout] b1ffb3a335f44b5bd3a215073e88243baf88d689b41d3f2637499c97407eb276
