[INFO] fetching crate syn-pub-items 0.15.30...
[INFO] checking syn-pub-items-0.15.30 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate syn-pub-items 0.15.30 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate syn-pub-items 0.15.30 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-pub-items 0.15.30
[INFO] finished tweaking crates.io crate syn-pub-items 0.15.30
[INFO] tweaked toml for crates.io crate syn-pub-items 0.15.30 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1a46c28d28e47b7ffd82b3e0dca34c29ea77cf1abbafca3b67ca3a5189f1283
[INFO] running `Command { std: "docker" "start" "-a" "d1a46c28d28e47b7ffd82b3e0dca34c29ea77cf1abbafca3b67ca3a5189f1283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1a46c28d28e47b7ffd82b3e0dca34c29ea77cf1abbafca3b67ca3a5189f1283", kill_on_drop: false }`
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[INFO] [stdout] d1a46c28d28e47b7ffd82b3e0dca34c29ea77cf1abbafca3b67ca3a5189f1283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d3b97bfc0c4de0374ada3e13a7af07a19aab92db72a6058d2d123d6169297ca
[INFO] running `Command { std: "docker" "start" "-a" "8d3b97bfc0c4de0374ada3e13a7af07a19aab92db72a6058d2d123d6169297ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.3
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
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[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hashbrown v0.12.3
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[INFO] [stderr]     Checking unicode-xid v0.1.0
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[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]    Compiling syn-pub-items v0.15.30 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking quote v0.6.13
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[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]    --> src/lib.rs:278:9
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub use macros::*;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:663:21
[INFO] [stdout]     |
[INFO] [stdout] 663 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:967:21
[INFO] [stdout]     |
[INFO] [stdout] 967 |                 b'0'...b'9' => b0 - b'0',
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:968:21
[INFO] [stdout]     |
[INFO] [stdout] 968 |                 b'a'...b'f' => 10 + (b0 - b'a'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:969:21
[INFO] [stdout]     |
[INFO] [stdout] 969 |                 b'A'...b'F' => 10 + (b0 - b'A'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:973:17
[INFO] [stdout]     |
[INFO] [stdout] 973 |             b'0'...b'9' => b1 - b'0',
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:974:17
[INFO] [stdout]     |
[INFO] [stdout] 974 |             b'a'...b'f' => 10 + (b1 - b'a'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |             b'A'...b'F' => 10 + (b1 - b'A'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:991:21
[INFO] [stdout]     |
[INFO] [stdout] 991 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |                 b'a'...b'f' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1001:21
[INFO] [stdout]      |
[INFO] [stdout] 1001 |                 b'A'...b'F' => {
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1034:18
[INFO] [stdout]      |
[INFO] [stdout] 1034 |             (b'0'...b'9', _) => 10,
[INFO] [stdout]      |                  ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1042:21
[INFO] [stdout]      |
[INFO] [stdout] 1042 |                 b'0'...b'9' => u64::from(b - b'0'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1043:21
[INFO] [stdout]      |
[INFO] [stdout] 1043 |                 b'a'...b'f' if base > 10 => 10 + u64::from(b - b'a'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1044:21
[INFO] [stdout]      |
[INFO] [stdout] 1044 |                 b'A'...b'F' if base > 10 => 10 + u64::from(b - b'A'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gen::*`
[INFO] [stdout]    --> src/lib.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub use gen::*;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:561:16
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<dyn ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:615:16
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<dyn ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/expr.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(bool);
[INFO] [stdout]      |                ----------- ^^^^
[INFO] [stdout]      |                |
[INFO] [stdout]      |                field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllowStruct` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(());
[INFO] [stdout]      |                            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lit.rs:983:30
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("expected {{ after \\u");
[INFO] [stdout]     |                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("{}", "expected {{ after \\u");
[INFO] [stdout]     |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling pest v2.7.7
[INFO] [stderr]    Compiling pest_meta v2.7.7
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]    Compiling pest_generator v2.7.7
[INFO] [stderr]    Compiling pest_derive v2.7.7
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking ron v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking chrono v0.4.33
[INFO] [stderr]     Checking insta v0.7.4
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]    --> src/lib.rs:278:9
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub use macros::*;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:663:21
[INFO] [stdout]     |
[INFO] [stdout] 663 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:967:21
[INFO] [stdout]     |
[INFO] [stdout] 967 |                 b'0'...b'9' => b0 - b'0',
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:968:21
[INFO] [stdout]     |
[INFO] [stdout] 968 |                 b'a'...b'f' => 10 + (b0 - b'a'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:969:21
[INFO] [stdout]     |
[INFO] [stdout] 969 |                 b'A'...b'F' => 10 + (b0 - b'A'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:973:17
[INFO] [stdout]     |
[INFO] [stdout] 973 |             b'0'...b'9' => b1 - b'0',
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:974:17
[INFO] [stdout]     |
[INFO] [stdout] 974 |             b'a'...b'f' => 10 + (b1 - b'a'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |             b'A'...b'F' => 10 + (b1 - b'A'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:991:21
[INFO] [stdout]     |
[INFO] [stdout] 991 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |                 b'a'...b'f' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1001:21
[INFO] [stdout]      |
[INFO] [stdout] 1001 |                 b'A'...b'F' => {
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1034:18
[INFO] [stdout]      |
[INFO] [stdout] 1034 |             (b'0'...b'9', _) => 10,
[INFO] [stdout]      |                  ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1042:21
[INFO] [stdout]      |
[INFO] [stdout] 1042 |                 b'0'...b'9' => u64::from(b - b'0'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1043:21
[INFO] [stdout]      |
[INFO] [stdout] 1043 |                 b'a'...b'f' if base > 10 => 10 + u64::from(b - b'a'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1044:21
[INFO] [stdout]      |
[INFO] [stdout] 1044 |                 b'A'...b'F' if base > 10 => 10 + u64::from(b - b'A'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gen::*`
[INFO] [stdout]    --> src/lib.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub use gen::*;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:561:16
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<dyn ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:615:16
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<dyn ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/expr.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(bool);
[INFO] [stdout]      |                ----------- ^^^^
[INFO] [stdout]      |                |
[INFO] [stdout]      |                field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllowStruct` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(());
[INFO] [stdout]      |                            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lit.rs:983:30
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("expected {{ after \\u");
[INFO] [stdout]     |                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("{}", "expected {{ after \\u");
[INFO] [stdout]     |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.06s
[INFO] running `Command { std: "docker" "inspect" "8d3b97bfc0c4de0374ada3e13a7af07a19aab92db72a6058d2d123d6169297ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3b97bfc0c4de0374ada3e13a7af07a19aab92db72a6058d2d123d6169297ca", kill_on_drop: false }`
[INFO] [stdout] 8d3b97bfc0c4de0374ada3e13a7af07a19aab92db72a6058d2d123d6169297ca
[INFO] checking syn-pub-items-0.15.30 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate syn-pub-items 0.15.30 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate syn-pub-items 0.15.30 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-pub-items 0.15.30
[INFO] finished tweaking crates.io crate syn-pub-items 0.15.30
[INFO] tweaked toml for crates.io crate syn-pub-items 0.15.30 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99094dd5ae6e16d5b3c8d2aa41ab0dbb874f0503e7349d6e45f2f8842c3e09f5
[INFO] running `Command { std: "docker" "start" "-a" "99094dd5ae6e16d5b3c8d2aa41ab0dbb874f0503e7349d6e45f2f8842c3e09f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99094dd5ae6e16d5b3c8d2aa41ab0dbb874f0503e7349d6e45f2f8842c3e09f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99094dd5ae6e16d5b3c8d2aa41ab0dbb874f0503e7349d6e45f2f8842c3e09f5", kill_on_drop: false }`
[INFO] [stdout] 99094dd5ae6e16d5b3c8d2aa41ab0dbb874f0503e7349d6e45f2f8842c3e09f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 51b75d1b3efabed7e760de972c09e6bd38561a786799577f1633719088f0a9e9
[INFO] running `Command { std: "docker" "start" "-a" "51b75d1b3efabed7e760de972c09e6bd38561a786799577f1633719088f0a9e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]    Compiling syn-pub-items v0.15.30 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking ci_info v0.3.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking is-terminal v0.4.10
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 | #![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 | #![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     feature = "cargo-clippy",
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 248 |     feature = "cargo-clippy",
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]    --> src/lib.rs:278:9
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub use macros::*;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]   --> src/group.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |             #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]   --> src/group.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |             #[cfg(not(procmacro2_semver_exempt))]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]    --> src/token.rs:713:12
[INFO] [stdout]     |
[INFO] [stdout] 713 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/attr.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         #[cfg_attr(feature = "cargo-clippy", allow(trivially_copy_pass_by_ref))]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/attr.rs:529:20
[INFO] [stdout]     |
[INFO] [stdout] 529 |         #[cfg_attr(feature = "cargo-clippy", allow(trivially_copy_pass_by_ref))]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lit.rs:730:16
[INFO] [stdout]     |
[INFO] [stdout] 730 |     #[cfg_attr(feature = "cargo-clippy", allow(needless_continue))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lit.rs:818:16
[INFO] [stdout]     |
[INFO] [stdout] 818 |     #[cfg_attr(feature = "cargo-clippy", allow(needless_continue))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:663:21
[INFO] [stdout]     |
[INFO] [stdout] 663 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:967:21
[INFO] [stdout]     |
[INFO] [stdout] 967 |                 b'0'...b'9' => b0 - b'0',
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:968:21
[INFO] [stdout]     |
[INFO] [stdout] 968 |                 b'a'...b'f' => 10 + (b0 - b'a'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:969:21
[INFO] [stdout]     |
[INFO] [stdout] 969 |                 b'A'...b'F' => 10 + (b0 - b'A'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:973:17
[INFO] [stdout]     |
[INFO] [stdout] 973 |             b'0'...b'9' => b1 - b'0',
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:974:17
[INFO] [stdout]     |
[INFO] [stdout] 974 |             b'a'...b'f' => 10 + (b1 - b'a'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |             b'A'...b'F' => 10 + (b1 - b'A'),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:991:21
[INFO] [stdout]     |
[INFO] [stdout] 991 |                 b'0'...b'9' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lit.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |                 b'a'...b'f' => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1001:21
[INFO] [stdout]      |
[INFO] [stdout] 1001 |                 b'A'...b'F' => {
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1034:18
[INFO] [stdout]      |
[INFO] [stdout] 1034 |             (b'0'...b'9', _) => 10,
[INFO] [stdout]      |                  ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1042:21
[INFO] [stdout]      |
[INFO] [stdout] 1042 |                 b'0'...b'9' => u64::from(b - b'0'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1043:21
[INFO] [stdout]      |
[INFO] [stdout] 1043 |                 b'a'...b'f' if base > 10 => 10 + u64::from(b - b'a'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/lit.rs:1044:21
[INFO] [stdout]      |
[INFO] [stdout] 1044 |                 b'A'...b'F' if base > 10 => 10 + u64::from(b - b'A'),
[INFO] [stdout]      |                     ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/path.rs:558:20
[INFO] [stdout]     |
[INFO] [stdout] 558 |         #[cfg_attr(feature = "cargo-clippy", allow(match_same_arms))]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `clone-impls`, `default`, `derive`, `extra-traits`, `fold`, `full`, `parsing`, `printing`, `proc-macro`, `quote`, `visit`, `visit-mut`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/buffer.rs:351:11
[INFO] [stdout]     |
[INFO] [stdout] 351 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/buffer.rs:359:11
[INFO] [stdout]     |
[INFO] [stdout] 359 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `syn_can_call_macro_by_path`
[INFO] [stdout]   --> src/parse_quote.rs:75:11
[INFO] [stdout]    |
[INFO] [stdout] 75 | #[cfg(not(syn_can_call_macro_by_path))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(syn_can_call_macro_by_path)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `syn_can_call_macro_by_path`
[INFO] [stdout]   --> src/parse_quote.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[cfg(syn_can_call_macro_by_path)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(syn_can_call_macro_by_path)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/spanned.rs:127:11
[INFO] [stdout]     |
[INFO] [stdout] 127 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/spanned.rs:136:15
[INFO] [stdout]     |
[INFO] [stdout] 136 |     #[cfg(not(procmacro2_semver_exempt))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gen::*`
[INFO] [stdout]    --> src/lib.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub use gen::*;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `syn_can_use_thread_id`
[INFO] [stdout]   --> src/thread.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[cfg(syn_can_use_thread_id)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(syn_can_use_thread_id)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `syn_can_use_thread_id`
[INFO] [stdout]   --> src/thread.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | #[cfg(not(syn_can_use_thread_id))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(syn_can_use_thread_id)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]   --> src/error.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(all(procmacro2_semver_exempt, feature = "parsing"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/error.rs:119:15
[INFO] [stdout]     |
[INFO] [stdout] 119 |         #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/error.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |         #[cfg(not(procmacro2_semver_exempt))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/error.rs:176:15
[INFO] [stdout]     |
[INFO] [stdout] 176 |         #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/error.rs:178:19
[INFO] [stdout]     |
[INFO] [stdout] 178 |         #[cfg(not(procmacro2_semver_exempt))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:561:16
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 561 |     inner: Box<dyn ExactSizeIterator<Item = &'a T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/punctuated.rs:615:16
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 615 |     inner: Box<dyn ExactSizeIterator<Item = &'a mut T> + 'a>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/expr.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(bool);
[INFO] [stdout]      |                ----------- ^^^^
[INFO] [stdout]      |                |
[INFO] [stdout]      |                field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllowStruct` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     pub struct AllowStruct(());
[INFO] [stdout]      |                            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lit.rs:983:30
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("expected {{ after \\u");
[INFO] [stdout]     |                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 983 |             panic!("{}", "expected {{ after \\u");
[INFO] [stdout]     |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn-pub-items` (lib) due to 26 previous errors; 20 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "51b75d1b3efabed7e760de972c09e6bd38561a786799577f1633719088f0a9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b75d1b3efabed7e760de972c09e6bd38561a786799577f1633719088f0a9e9", kill_on_drop: false }`
[INFO] [stdout] 51b75d1b3efabed7e760de972c09e6bd38561a786799577f1633719088f0a9e9
