[INFO] fetching crate lexpar 0.1.0...
[INFO] testing lexpar-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate lexpar 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate lexpar 0.1.0
[INFO] finished tweaking crates.io crate lexpar 0.1.0
[INFO] tweaked toml for crates.io crate lexpar 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lexpar 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding regex v0.2.11 (available: v1.12.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a594450779cc93f74cf323cdb42be92333422e9693d5e155d288509375a0a84b
[INFO] running `Command { std: "docker" "start" "-a" "a594450779cc93f74cf323cdb42be92333422e9693d5e155d288509375a0a84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a594450779cc93f74cf323cdb42be92333422e9693d5e155d288509375a0a84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a594450779cc93f74cf323cdb42be92333422e9693d5e155d288509375a0a84b", kill_on_drop: false }`
[INFO] [stdout] a594450779cc93f74cf323cdb42be92333422e9693d5e155d288509375a0a84b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bf3dd3932fe3c0958f916f18bf2f50bfeb7d9250fe30459c52a481d7b46ce0d
[INFO] running `Command { std: "docker" "start" "-a" "4bf3dd3932fe3c0958f916f18bf2f50bfeb7d9250fe30459c52a481d7b46ce0d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling lexpar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<dyn for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "4bf3dd3932fe3c0958f916f18bf2f50bfeb7d9250fe30459c52a481d7b46ce0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf3dd3932fe3c0958f916f18bf2f50bfeb7d9250fe30459c52a481d7b46ce0d", kill_on_drop: false }`
[INFO] [stdout] 4bf3dd3932fe3c0958f916f18bf2f50bfeb7d9250fe30459c52a481d7b46ce0d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41f8f683f86cb90420f2cf711e0c75a2bcd5e0d0d19b8c5421a054f464c30d74
[INFO] running `Command { std: "docker" "start" "-a" "41f8f683f86cb90420f2cf711e0c75a2bcd5e0d0d19b8c5421a054f464c30d74", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling lexpar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<dyn for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> examples/rust_family/parser/mod.rs:142:43
[INFO] [stdout]     |
[INFO] [stdout] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/rust_family/parser/ast.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<Ast>
[INFO] [stdout]   |               ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<dyn Ast>
[INFO] [stdout]   |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let parse = |iter: Box<Iterator<Item = (Span, Token)>>| {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let parse = |iter: Box<dyn Iterator<Item = (Span, Token)>>| {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<dyn for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:102:28
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:243:28
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:309:32
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:408:32
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:438:32
[INFO] [stdout]     |
[INFO] [stdout] 438 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 438 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:489:32
[INFO] [stdout]     |
[INFO] [stdout] 489 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 489 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/ml_family/parser/ast.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<Ast>
[INFO] [stdout]   |               ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<dyn Ast>
[INFO] [stdout]   |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     struct NumberExpr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 59 |         num: f64
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NumberExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     struct VariableExpr {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 63 |         name: String
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VariableExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `params` are never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     struct FunctionProtoExpr {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 67 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 68 |         params: Vec<String>
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionProtoExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `proto` and `body` are never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     struct FunctionExpr {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 72 |         proto: AstNode,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 73 |         body: Vec<AstNode>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `args` are never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     struct CallExpr {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 77 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 78 |         args: Vec<AstNode>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CallExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `lhs`, and `rhs` are never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     struct BinExpr {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 82 |         op: BinOp,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 83 |         lhs: AstNode,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 84 |         rhs: AstNode
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `value` are never read
[INFO] [stdout]   --> examples/rust_family/parser/ast.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     struct VariableDefExpr {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 88 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 89 |         value: AstNode
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VariableDefExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `AstNode` does not permit being left uninitialized
[INFO] [stdout]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stdout]     |
[INFO] [stdout] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this code causes undefined behavior when executed
[INFO] [stdout]     |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> examples/rust_family/parser/ast.rs:8:5
[INFO] [stdout]     |
[INFO] [stdout]   8 |     span: Span,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     struct NumberExpr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 59 |         num: f64
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NumberExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `string` is never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     struct StringExpr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 63 |         string: String
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StringExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     struct VariableExpr {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 67 |         name: String
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VariableExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `params` are never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     struct FunctionProtoExpr {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 71 |         name: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 72 |         params: Vec<String>
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionProtoExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `proto` and `body` are never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     struct FunctionExpr {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 76 |         proto: AstNode,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 77 |         body: AstNode
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `proto` and `body` are never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     struct ClosureExpr {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 81 |         proto: AstNode,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 82 |         body: AstNode
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClosureExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `args` are never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     struct CallExpr {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 86 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 87 |         args: Vec<AstNode>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CallExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `exprs` is never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     struct BlockExpr {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 91 |         exprs: Vec<AstNode>
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BlockExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `lhs`, and `rhs` are never read
[INFO] [stdout]   --> examples/ml_family/parser/ast.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     struct BinExpr {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 95 |         op: BinOp,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 96 |         lhs: AstNode,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 97 |         rhs: AstNode
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cond`, `then`, and `el` are never read
[INFO] [stdout]    --> examples/ml_family/parser/ast.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     struct IfExpr {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 101 |         cond: AstNode,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 102 |         then: AstNode,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 103 |         el: Option<AstNode>
[INFO] [stdout]     |         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `var`, `iter`, and `body` are never read
[INFO] [stdout]    --> examples/ml_family/parser/ast.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     struct ForExpr {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 107 |         var: AstNode,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 108 |         iter: AstNode,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 109 |         body: AstNode
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ForExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `value` are never read
[INFO] [stdout]    --> examples/ml_family/parser/ast.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     struct VariableDef {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 113 |         name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 114 |         value: AstNode
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariableDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "41f8f683f86cb90420f2cf711e0c75a2bcd5e0d0d19b8c5421a054f464c30d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f8f683f86cb90420f2cf711e0c75a2bcd5e0d0d19b8c5421a054f464c30d74", kill_on_drop: false }`
[INFO] [stdout] 41f8f683f86cb90420f2cf711e0c75a2bcd5e0d0d19b8c5421a054f464c30d74
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f3f2282af9fe84a021f6335c93aa5d05d465c6dca07c3705b35ee5203839e3a
[INFO] running `Command { std: "docker" "start" "-a" "5f3f2282af9fe84a021f6335c93aa5d05d465c6dca07c3705b35ee5203839e3a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> 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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 |     handle: Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> 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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 |     unknown: Box<dyn for<'a> Fn(Span, &'a str) -> T>
[INFO] [stderr]    |                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lexer.rs:117:41
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new<F>(rules: Vec<(&str, Box<dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `lexpar` (lib) generated 3 warnings (run `cargo fix --lib -p lexpar` to apply 3 suggestions)
[INFO] [stderr] warning: `lexpar` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:31:28
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let parse = |iter: Box<Iterator<Item = (Span, Token)>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let parse = |iter: Box<dyn Iterator<Item = (Span, Token)>>| {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:150:28
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:243:28
[INFO] [stderr]     |
[INFO] [stderr] 243 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 243 |     let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:309:32
[INFO] [stderr]     |
[INFO] [stderr] 309 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 309 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:408:32
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:438:32
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:489:32
[INFO] [stderr]     |
[INFO] [stderr] 489 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 489 |         let parse = |iter: Box<dyn Iterator<Item = Token>>| {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> examples/rust_family/parser/mod.rs:142:43
[INFO] [stderr]     |
[INFO] [stderr] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> examples/rust_family/parser/ast.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Ast>
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<dyn Ast>
[INFO] [stderr]   |               +++
[INFO] [stderr] 
[INFO] [stderr] warning: field `num` is never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |     struct NumberExpr {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 59 |         num: f64
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NumberExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     struct VariableExpr {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] 63 |         name: String
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `VariableExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `params` are never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     struct FunctionProtoExpr {
[INFO] [stderr]    |            ----------------- fields in this struct
[INFO] [stderr] 67 |         name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 68 |         params: Vec<String>
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FunctionProtoExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `proto` and `body` are never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     struct FunctionExpr {
[INFO] [stderr]    |            ------------ fields in this struct
[INFO] [stderr] 72 |         proto: AstNode,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 73 |         body: Vec<AstNode>
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FunctionExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `args` are never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     struct CallExpr {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 77 |         name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 78 |         args: Vec<AstNode>
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CallExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `op`, `lhs`, and `rhs` are never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     struct BinExpr {
[INFO] [stderr]    |            ------- fields in this struct
[INFO] [stderr] 82 |         op: BinOp,
[INFO] [stderr]    |         ^^
[INFO] [stderr] 83 |         lhs: AstNode,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 84 |         rhs: AstNode
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BinExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `value` are never read
[INFO] [stderr]   --> examples/rust_family/parser/ast.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     struct VariableDefExpr {
[INFO] [stderr]    |            --------------- fields in this struct
[INFO] [stderr] 88 |         name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 89 |         value: AstNode
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `VariableDefExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `AstNode` does not permit being left uninitialized
[INFO] [stderr]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stderr]     |
[INFO] [stderr] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               this code causes undefined behavior when executed
[INFO] [stderr]     |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr] note: integers must be initialized (in this struct field)
[INFO] [stderr]    --> examples/rust_family/parser/ast.rs:8:5
[INFO] [stderr]     |
[INFO] [stderr]   8 |     span: Span,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> examples/ml_family/parser/ast.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Ast>
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<dyn Ast>
[INFO] [stderr]   |               +++
[INFO] [stderr] 
[INFO] [stderr] warning: field `num` is never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |     struct NumberExpr {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 59 |         num: f64
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NumberExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field `string` is never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     struct StringExpr {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 63 |         string: String
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `StringExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     struct VariableExpr {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] 67 |         name: String
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `VariableExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `params` are never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     struct FunctionProtoExpr {
[INFO] [stderr]    |            ----------------- fields in this struct
[INFO] [stderr] 71 |         name: Option<String>,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 72 |         params: Vec<String>
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FunctionProtoExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `proto` and `body` are never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |     struct FunctionExpr {
[INFO] [stderr]    |            ------------ fields in this struct
[INFO] [stderr] 76 |         proto: AstNode,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 77 |         body: AstNode
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FunctionExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `proto` and `body` are never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |     struct ClosureExpr {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 81 |         proto: AstNode,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 82 |         body: AstNode
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ClosureExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `args` are never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     struct CallExpr {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 86 |         name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 87 |         args: Vec<AstNode>
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CallExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field `exprs` is never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     struct BlockExpr {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 91 |         exprs: Vec<AstNode>
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BlockExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `op`, `lhs`, and `rhs` are never read
[INFO] [stderr]   --> examples/ml_family/parser/ast.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |     struct BinExpr {
[INFO] [stderr]    |            ------- fields in this struct
[INFO] [stderr] 95 |         op: BinOp,
[INFO] [stderr]    |         ^^
[INFO] [stderr] 96 |         lhs: AstNode,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 97 |         rhs: AstNode
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BinExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `cond`, `then`, and `el` are never read
[INFO] [stderr]    --> examples/ml_family/parser/ast.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     struct IfExpr {
[INFO] [stderr]     |            ------ fields in this struct
[INFO] [stderr] 101 |         cond: AstNode,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 102 |         then: AstNode,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 103 |         el: Option<AstNode>
[INFO] [stderr]     |         ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `IfExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: fields `var`, `iter`, and `body` are never read
[INFO] [stderr]    --> examples/ml_family/parser/ast.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |     struct ForExpr {
[INFO] [stderr]     |            ------- fields in this struct
[INFO] [stderr] 107 |         var: AstNode,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 108 |         iter: AstNode,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 109 |         body: AstNode
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `ForExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] running 0 tests
[INFO] [stderr]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: fields `name` and `value` are never read
[INFO] [stdout] 
[INFO] [stderr]    --> examples/ml_family/parser/ast.rs:113:9
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] running 2 tests
[INFO] [stderr] 112 |     struct VariableDef {
[INFO] [stderr]     |            ----------- fields in this struct
[INFO] [stderr] 113 |         name: String,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 114 |         value: AstNode
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `VariableDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: this warning originates in the macro `ast_nodes` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `lexpar` (test "parser") generated 9 warnings (run `cargo fix --test "parser" -p lexpar` to apply 9 suggestions)
[INFO] [stderr] warning: `lexpar` (example "rust") generated 10 warnings (run `cargo fix --example "rust" -p lexpar` to apply 1 suggestion)
[INFO] [stderr] warning: `lexpar` (example "ml") generated 13 warnings (run `cargo fix --example "ml" -p lexpar` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lexpar-92babe0ccad93c63)
[INFO] [stderr]      Running tests/lexer.rs (/opt/rustwide/target/debug/deps/lexer-9666e4671a4a4555)
[INFO] [stdout] test unknown_token ... ok
[INFO] [stdout] test some_tokens ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/parser.rs (/opt/rustwide/target/debug/deps/parser-14e694353d2bbaf2)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test looping::parser8_fn_args ... ok
[INFO] [stdout] test parser1_ok_eof_unexpected ... ok
[INFO] [stdout] test parser3_epsilon_and_trailing_commas ... ok
[INFO] [stdout] test looping::parser9_fold_fn_args ... ok
[INFO] [stdout] test looping::parser7_kleene_star ... ok
[INFO] [stdout] test parser4_custom_handler ... ok
[INFO] [stdout] test parser2_nonterm_call ... ok
[INFO] [stdout] test parser5_nonterm_as_first_rule ... ok
[INFO] [stdout] test parser6_recursive_grammar ... ok
[INFO] [stdout] test precedence::parser9_binop_infix_precedence_syntax ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lexpar
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/parser.rs - parser (line 122) ... ignored
[INFO] [stdout] test src/parser.rs - parser (line 527) ... ignored
[INFO] [stdout] test src/parser.rs - parser (line 138) - compile ... ok
[INFO] [stdout] test src/parser.rs - parser::parse_rules (line 607) - compile ... ok
[INFO] [stdout] test src/parser.rs - parser (line 93) - compile ... ok
[INFO] [stdout] test src/parser.rs - parser (line 106) - compile ... ok
[INFO] [stdout] test src/parser.rs - parser (line 225) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 63) - compile ... ok
[INFO] [stdout] test src/parser.rs - parser (line 491) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 181) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 378) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 465) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 168) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 329) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 294) ... ok
[INFO] [stdout] test src/lexer.rs - lexer::Lexer (line 79) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 261) ... ok
[INFO] [stdout] test src/parser.rs - parser (line 440) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f3f2282af9fe84a021f6335c93aa5d05d465c6dca07c3705b35ee5203839e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3f2282af9fe84a021f6335c93aa5d05d465c6dca07c3705b35ee5203839e3a", kill_on_drop: false }`
[INFO] [stdout] 5f3f2282af9fe84a021f6335c93aa5d05d465c6dca07c3705b35ee5203839e3a
