[INFO] fetching crate peruse 0.3.0...
[INFO] checking peruse-0.3.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate peruse 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate peruse 0.3.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peruse 0.3.0
[INFO] finished tweaking crates.io crate peruse 0.3.0
[INFO] tweaked toml for crates.io crate peruse 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.5.3 (latest: v1.1.3)
[INFO] [stderr]       Adding memchr v0.1.11 (latest: v2.7.4)
[INFO] [stderr]       Adding regex v0.1.80 (latest: v1.10.6)
[INFO] [stderr]       Adding regex-syntax v0.3.9 (latest: v0.8.4)
[INFO] [stderr]       Adding thread-id v2.0.0 (latest: v4.2.2)
[INFO] [stderr]       Adding thread_local v0.2.7 (latest: v1.1.8)
[INFO] [stderr]       Adding utf8-ranges v0.1.3 (latest: v1.0.5)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cddc0efcea5409f50ee1d2003584b80a79584c30ef576df640bf35597354ce7
[INFO] running `Command { std: "docker" "start" "-a" "5cddc0efcea5409f50ee1d2003584b80a79584c30ef576df640bf35597354ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cddc0efcea5409f50ee1d2003584b80a79584c30ef576df640bf35597354ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cddc0efcea5409f50ee1d2003584b80a79584c30ef576df640bf35597354ce7", kill_on_drop: false }`
[INFO] [stdout] 5cddc0efcea5409f50ee1d2003584b80a79584c30ef576df640bf35597354ce7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae3aeaa3eed2d2f73580b534358dc2843e0d1ab9b46091fb4e667bd85623dd41
[INFO] running `Command { std: "docker" "start" "-a" "ae3aeaa3eed2d2f73580b534358dc2843e0d1ab9b46091fb4e667bd85623dd41", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking peruse v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parsers::*`
[INFO] [stdout]  --> src/peruse/slice_parser_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/peruse/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod slice_parser_tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice_parsers::*`
[INFO] [stdout]  --> src/peruse/slice_parser_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use slice_parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/peruse/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod slice_parser_tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parsers::*`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/peruse/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | mod string_parser_tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `string_parsers::*`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use string_parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/peruse/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | mod string_parser_tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/peruse/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | mod string_parser_tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<dyn Fn(P::O) -> T>>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:330:18
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<dyn Parser<I=I,O=O>>>
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<dyn Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:62:46
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<dyn Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:222:66
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:75:34
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<dyn Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<dyn Fn(P::O) -> T>>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:330:18
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<dyn Parser<I=I,O=O>>>
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<dyn Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:62:46
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<dyn Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:222:66
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:75:34
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<dyn Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:237:89
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:239:79
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:237:89
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = dyn Parser<I=[I], O=O>;
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:239:79
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = dyn Parser<I=str, O=T>;
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = dyn Parser<I=[I], O=O>;
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = dyn Parser<I=str, O=T>;
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parser_tests.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 |   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |   fn recurse() -> Box<dyn Parser<I=[i32], O=i32>> {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/slice_parser_tests.rs:179:26
[INFO] [stdout]     |
[INFO] [stdout] 179 |   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 179 |   fn expression() -> Box<dyn Parser<I=[Token], O=Expression>> {
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:127:37
[INFO] [stdout]     |
[INFO] [stdout] 127 |       match self.parser.parse(remain.clone()) {
[INFO] [stdout]     |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<T as Parser>::I` does not implement `Clone`, so calling `clone` on `&<T as Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:184:32
[INFO] [stdout]     |
[INFO] [stdout] 184 |     match self.first.parse(data.clone()) {
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:186:45
[INFO] [stdout]     |
[INFO] [stdout] 186 |       Err(_) => match self.second.parse(data.clone()) {
[INFO] [stdout]     |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:213:33
[INFO] [stdout]     |
[INFO] [stdout] 213 |     match self.parser.parse(data.clone()) {
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<P as Parser>::I` does not implement `Clone`, so calling `clone` on `&<P as Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:265:36
[INFO] [stdout]     |
[INFO] [stdout] 265 |           match self.sep.parse(rest.clone()) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 311 |       let r = p.parse(data.clone());
[INFO] [stdout]     |                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<T as Parser>::I` does not implement `Clone`, so calling `clone` on `&<T as Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:127:37
[INFO] [stdout]     |
[INFO] [stdout] 127 |       match self.parser.parse(remain.clone()) {
[INFO] [stdout]     |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<T as parsers::Parser>::I` does not implement `Clone`, so calling `clone` on `&<T as parsers::Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:184:32
[INFO] [stdout]     |
[INFO] [stdout] 184 |     match self.first.parse(data.clone()) {
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:186:45
[INFO] [stdout]     |
[INFO] [stdout] 186 |       Err(_) => match self.second.parse(data.clone()) {
[INFO] [stdout]     |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:213:33
[INFO] [stdout]     |
[INFO] [stdout] 213 |     match self.parser.parse(data.clone()) {
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<P as parsers::Parser>::I` does not implement `Clone`, so calling `clone` on `&<P as parsers::Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:265:36
[INFO] [stdout]     |
[INFO] [stdout] 265 |           match self.sep.parse(rest.clone()) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `I` does not implement `Clone`, so calling `clone` on `&I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/peruse/parsers.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 311 |       let r = p.parse(data.clone());
[INFO] [stdout]     |                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<T as parsers::Parser>::I` does not implement `Clone`, so calling `clone` on `&<T as parsers::Parser>::I` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "ae3aeaa3eed2d2f73580b534358dc2843e0d1ab9b46091fb4e667bd85623dd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae3aeaa3eed2d2f73580b534358dc2843e0d1ab9b46091fb4e667bd85623dd41", kill_on_drop: false }`
[INFO] [stdout] ae3aeaa3eed2d2f73580b534358dc2843e0d1ab9b46091fb4e667bd85623dd41