[INFO] fetching crate peruse 0.3.0...
[INFO] testing peruse-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate peruse 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate peruse 0.3.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce477007727bf05d74967167c107183908ddc3eae9db69688a7fbd8d264a9ae8
[INFO] running `Command { std: "docker" "start" "-a" "ce477007727bf05d74967167c107183908ddc3eae9db69688a7fbd8d264a9ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce477007727bf05d74967167c107183908ddc3eae9db69688a7fbd8d264a9ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce477007727bf05d74967167c107183908ddc3eae9db69688a7fbd8d264a9ae8", kill_on_drop: false }`
[INFO] [stdout] ce477007727bf05d74967167c107183908ddc3eae9db69688a7fbd8d264a9ae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1e054be207fd591395c7dd82e86c53121afc16b33a067caf07e9b21f15be63
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a1e054be207fd591395c7dd82e86c53121afc16b33a067caf07e9b21f15be63", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling memchr v0.1.11
[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 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]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: 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: `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: 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: 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: 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: 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: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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the 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: use `dyn`
[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] 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: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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 - pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 -   mapper: Rc<Box<Fn(P::O) -> T>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 330 -   parser: Rc<Box<Parser<I=I,O=O>>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -   matcher: Rc<Box<Fn(T) -> Option<U>>>
[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: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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 222 - pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[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: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: use `dyn`
[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] 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: use `dyn`
[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] 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: use `dyn`
[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] 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/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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout] 7 + pub type StringParser<T> = dyn Parser<I=str, O=T>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.26s
[INFO] running `Command { std: "docker" "inspect" "3a1e054be207fd591395c7dd82e86c53121afc16b33a067caf07e9b21f15be63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1e054be207fd591395c7dd82e86c53121afc16b33a067caf07e9b21f15be63", kill_on_drop: false }`
[INFO] [stdout] 3a1e054be207fd591395c7dd82e86c53121afc16b33a067caf07e9b21f15be63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5ce80811e50bdb915e8a0e3ec2a6f6d298457cae0e9bd2425da7a422f8839743
[INFO] running `Command { std: "docker" "start" "-a" "5ce80811e50bdb915e8a0e3ec2a6f6d298457cae0e9bd2425da7a422f8839743", kill_on_drop: false }`
[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]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: 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: `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: 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: 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: 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: 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: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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the 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: use `dyn`
[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] 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: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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 - pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 -   mapper: Rc<Box<Fn(P::O) -> T>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 330 -   parser: Rc<Box<Parser<I=I,O=O>>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stdout] 49 +   matcher: Rc<Box<dyn Fn(T) -> Option<U>>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling peruse v0.3.0 (/opt/rustwide/workdir)
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 222 - pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[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: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: use `dyn`
[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] 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: use `dyn`
[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] 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: use `dyn`
[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] 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/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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout] 7 + pub type StringParser<T> = dyn Parser<I=str, O=T>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the 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: use `dyn`
[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] 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: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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 - pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 -   mapper: Rc<Box<Fn(P::O) -> T>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 330 -   parser: Rc<Box<Parser<I=I,O=O>>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -   matcher: Rc<Box<Fn(T) -> Option<U>>>
[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: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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 222 - pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[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: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: use `dyn`
[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] 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: use `dyn`
[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] 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: use `dyn`
[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] 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/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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub type StringParser<T> = Parser<I=str, O=T>;
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 -   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 179 -   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stdout] 179 +   fn expression() -> Box<dyn Parser<I=[Token], O=Expression>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] [stderr]   Executable unittests src/peruse/lib.rs (/opt/rustwide/target/debug/deps/peruse-54901efc624d3f52)
[INFO] running `Command { std: "docker" "inspect" "5ce80811e50bdb915e8a0e3ec2a6f6d298457cae0e9bd2425da7a422f8839743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ce80811e50bdb915e8a0e3ec2a6f6d298457cae0e9bd2425da7a422f8839743", kill_on_drop: false }`
[INFO] [stdout] 5ce80811e50bdb915e8a0e3ec2a6f6d298457cae0e9bd2425da7a422f8839743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7b2208ba59de1cb8a18ddd9025e78bb8dfc3ff2a924b3ea1171074f85e6acfb
[INFO] running `Command { std: "docker" "start" "-a" "a7b2208ba59de1cb8a18ddd9025e78bb8dfc3ff2a924b3ea1171074f85e6acfb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `parsers::*`
[INFO] [stderr]  --> src/peruse/slice_parser_tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/peruse/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | mod slice_parser_tests;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `slice_parsers::*`
[INFO] [stderr]  --> src/peruse/slice_parser_tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use slice_parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/peruse/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | mod slice_parser_tests;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parsers::*`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/peruse/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | mod string_parser_tests;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string_parsers::*`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use string_parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/peruse/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | mod string_parser_tests;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/peruse/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | mod string_parser_tests;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:62:46
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 62 - pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stderr] 62 + pub fn recursive<I:?Sized,O, F:  Fn() -> Box<dyn Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 75 - pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stderr] 75 + pub fn boxed<I: ?Sized,O>(b: Box<dyn Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 152 -   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stderr] 152 +   mapper: Rc<Box<dyn Fn(P::O) -> T>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:330:18
[INFO] [stderr]     |
[INFO] [stderr] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 330 -   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stderr] 330 +   parser: Rc<Box<dyn Parser<I=I,O=O>>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stderr]    |
[INFO] [stderr] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 -   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stderr] 49 +   matcher: Rc<Box<dyn Fn(T) -> Option<U>>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:222:66
[INFO] [stderr]     |
[INFO] [stderr] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 222 - pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stderr] 222 + pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>>{
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:226:79
[INFO] [stderr]     |
[INFO] [stderr] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 226 - impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr] 226 + impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:237:89
[INFO] [stderr]     |
[INFO] [stderr] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stderr]     |                                                                                         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 237 - impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stderr] 237 + impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {}
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:239:79
[INFO] [stderr]     |
[INFO] [stderr] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 239 - impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr] 239 + impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<dyn Parser<I=I,O=O>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 - pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stderr] 4 + pub type SliceParser<I,O> = dyn Parser<I=[I], O=O>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 7 - pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stderr] 7 + pub type StringParser<T> = dyn Parser<I=str, O=T>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/slice_parser_tests.rs:57:23
[INFO] [stderr]    |
[INFO] [stderr] 57 |   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 57 -   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[INFO] [stderr] 57 +   fn recurse() -> Box<dyn Parser<I=[i32], O=i32>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/slice_parser_tests.rs:179:26
[INFO] [stderr]     |
[INFO] [stderr] 179 |   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 179 -   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stderr] 179 +   fn expression() -> Box<dyn Parser<I=[Token], O=Expression>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `peruse` (lib) generated 16 warnings
[INFO] [stderr] warning: `peruse` (lib test) generated 13 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/peruse/lib.rs (/opt/rustwide/target/debug/deps/peruse-54901efc624d3f52)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test slice_parser_tests::test_recursive ... ok
[INFO] [stdout] test slice_parser_tests::test_repeat ... ok
[INFO] [stdout] test slice_parser_tests::test_then ... ok
[INFO] [stdout] test slice_parser_tests::test_map ... ok
[INFO] [stdout] test slice_parser_tests::test_then_r ... ok
[INFO] [stdout] test slice_parser_tests::basic_example ... ok
[INFO] [stdout] test string_parser_tests::test_literal ... ok
[INFO] [stdout] test slice_parser_tests::test_then_l ... ok
[INFO] [stdout] test slice_parser_tests::test_readme_code ... ok
[INFO] [stdout] test slice_parser_tests::test_or ... ok
[INFO] [stdout] test slice_parser_tests::test_opt ... ok
[INFO] [stdout] test slice_parser_tests::test_oneof ... ok
[INFO] [stdout] test slice_parser_tests::test_match ... ok
[INFO] [stdout] test string_parser_tests::test_captures ... ok
[INFO] [stdout] test slice_parser_tests::test_literal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests peruse
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7b2208ba59de1cb8a18ddd9025e78bb8dfc3ff2a924b3ea1171074f85e6acfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b2208ba59de1cb8a18ddd9025e78bb8dfc3ff2a924b3ea1171074f85e6acfb", kill_on_drop: false }`
[INFO] [stdout] a7b2208ba59de1cb8a18ddd9025e78bb8dfc3ff2a924b3ea1171074f85e6acfb