[INFO] fetching crate custom-print 1.0.0...
[INFO] checking custom-print-1.0.0 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] extracting crate custom-print 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate custom-print 1.0.0 on toolchain ccf408f4326a858c00dd845a64a86b16f360a801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom-print 1.0.0
[INFO] finished tweaking crates.io crate custom-print 1.0.0
[INFO] tweaked toml for crates.io crate custom-print 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding pulldown-cmark v0.8.0 (available: v0.12.1)
[INFO] [stderr]       Adding pulldown-cmark v0.9.6 (available: v0.12.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.8.19)
[INFO] [stderr]       Adding toml v0.7.8 (available: v0.8.19)
[INFO] [stderr]       Adding toml_edit v0.19.15 (available: v0.22.22)
[INFO] [stderr]       Adding winnow v0.5.40 (available: v0.6.20)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c747f48c231c90ff7885751a4d975ca827e0aac650380548fff3039b61399628
[INFO] running `Command { std: "docker" "start" "-a" "c747f48c231c90ff7885751a4d975ca827e0aac650380548fff3039b61399628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c747f48c231c90ff7885751a4d975ca827e0aac650380548fff3039b61399628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c747f48c231c90ff7885751a4d975ca827e0aac650380548fff3039b61399628", kill_on_drop: false }`
[INFO] [stdout] c747f48c231c90ff7885751a4d975ca827e0aac650380548fff3039b61399628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb1422f8e0fd70b52426ee21a32527e91c81382e26d400ea1d7c0e2afe82008e
[INFO] running `Command { std: "docker" "start" "-a" "bb1422f8e0fd70b52426ee21a32527e91c81382e26d400ea1d7c0e2afe82008e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking custom-print v1.0.0 (/tmp/fixit)
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking codemap-diagnostic v0.1.2
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `custom_print`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/macros/dbgwrite.rs
[INFO] [stderr]   * src/macros/write.rs
[INFO] [stderr]   * src/macros/writer.rs
[INFO] [stderr]   * src/macros/writer_expr.rs
[INFO] [stderr]   * src/write_fns.rs
[INFO] [stderr] 
[INFO] [stderr] This likely indicates a bug in either rustc or cargo itself,
[INFO] [stderr] and we would appreciate a bug report! You're likely to see
[INFO] [stderr] a number of compiler warnings after this message which cargo
[INFO] [stderr] attempted to fix but failed. If you could open an issue at
[INFO] [stderr] https://github.com/rust-lang/rust/issues
[INFO] [stderr] quoting the full output of this command we'd be very appreciative!
[INFO] [stderr] Note that you may be able to make some more progress in the near-term
[INFO] [stderr] fixing code with the `--broken-code` flag
[INFO] [stderr] 
[INFO] [stderr] The following errors were reported:
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:30:20
[INFO] [stderr]    |
[INFO] [stderr] 30 |     ( $macro:path, $writer:expr_2021, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |     ( $macro:path, $writer:expr_2021, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:46:56
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:60:20
[INFO] [stderr]    |
[INFO] [stderr] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:60:58
[INFO] [stderr]    |
[INFO] [stderr] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:84:56
[INFO] [stderr]    |
[INFO] [stderr] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:97:20
[INFO] [stderr]    |
[INFO] [stderr] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:97:58
[INFO] [stderr]    |
[INFO] [stderr] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/write.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ( $macro:path, $writer:expr_2021, expect $(, $($args:tt)*)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/write.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     ( $macro:path, $writer:expr_2021, try $(, $($args:tt)*)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/writer.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |     ( $expr:expr_2021 ) => {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/macros/writer.rs:110:7
[INFO] [stderr]     |
[INFO] [stderr] 110 |     ( $expr:expr_2021 ) => {
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/writer_expr.rs:67:7
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ( $expr:expr_2021 ) => {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/write_fns.rs:11:18
[INFO] [stderr]    |
[INFO] [stderr] 11 |     ( docs: { $( $doc:expr_2021 ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ( $macro:path, $writer:expr, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout]    = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ( $macro:path, $writer:expr_2021, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ( $macro:path, $writer:expr, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ( $macro:path, $writer:expr_2021, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ( $macro:path, $writer:expr, $format:literal ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:46:56
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stdout]    |                                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:60:58
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:79:28
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ( $macro:path, $writer:expr, $format:literal ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:84:56
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stdout]    |                                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:97:28
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:97:58
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/write.rs:22:28
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ( $macro:path, $writer:expr, expect $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ( $macro:path, $writer:expr_2021, expect $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/write.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ( $macro:path, $writer:expr, try $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ( $macro:path, $writer:expr_2021, try $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/writer.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ( $expr:expr ) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/macros/writer.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ( $expr:expr ) => {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]     |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/writer_expr.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ( $expr:expr ) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/write_fns.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ( docs: { $( $doc:expr ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ( docs: { $( $doc:expr_2021 ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stdout]    |                       ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking readme-sync v0.2.1
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stderr]    Migrating tests/fmt_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/shadowing_with_macros.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/unsafe_fn1.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/cchar_writer.rs from 2021 edition to 2024
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `custom_print`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/macros/dbgwrite.rs
[INFO] [stderr]   * src/macros/write.rs
[INFO] [stderr]   * src/macros/writer.rs
[INFO] [stderr]   * src/macros/writer_expr.rs
[INFO] [stderr]   * src/write_fns.rs
[INFO] [stderr] 
[INFO] [stderr] This likely indicates a bug in either rustc or cargo itself,
[INFO] [stderr] and we would appreciate a bug report! You're likely to see
[INFO] [stderr] a number of compiler warnings after this message which cargo
[INFO] [stderr] attempted to fix but failed. If you could open an issue at
[INFO] [stderr] https://github.com/rust-lang/rust/issues
[INFO] [stderr] quoting the full output of this command we'd be very appreciative!
[INFO] [stderr] Note that you may be able to make some more progress in the near-term
[INFO] [stderr] fixing code with the `--broken-code` flag
[INFO] [stderr] 
[INFO] [stderr] The following errors were reported:
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:30:20
[INFO] [stderr]    |
[INFO] [stderr] 30 |     ( $macro:path, $writer:expr_2021, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |     ( $macro:path, $writer:expr_2021, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:46:56
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:60:20
[INFO] [stderr]    |
[INFO] [stderr] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:60:58
[INFO] [stderr]    |
[INFO] [stderr] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:84:56
[INFO] [stderr]    |
[INFO] [stderr] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:97:20
[INFO] [stderr]    |
[INFO] [stderr] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/dbgwrite.rs:97:58
[INFO] [stderr]    |
[INFO] [stderr] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/write.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ( $macro:path, $writer:expr_2021, expect $(, $($args:tt)*)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/write.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     ( $macro:path, $writer:expr_2021, try $(, $($args:tt)*)? ) => {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/macros/writer.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |     ( $expr:expr_2021 ) => {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/macros/writer.rs:110:7
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ( $macro:path, $writer:expr, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout]    = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ( $macro:path, $writer:expr_2021, expect, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ( $macro:path, $writer:expr, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ( $macro:path, $writer:expr_2021, try, $format:literal $(, $($args:tt)+)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 110 |     ( $expr:expr_2021 ) => {
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ( $macro:path, $writer:expr, $format:literal ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:46:56
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ( $macro:path, $writer:expr, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stdout]    |                                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:60:58
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 60 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:79:28
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ( $macro:path, $writer:expr, $format:literal ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ( $macro:path, $writer:expr_2021, $format:literal ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr_2021, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:84:56
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr $(,)? ) => {
[INFO] [stdout]    |                                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ( $macro:path, $writer:expr, $format:literal, $val:expr_2021 $(,)? ) => {
[INFO] [stdout]    |                                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/macros/writer_expr.rs:67:7
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:97:28
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr_2021, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/dbgwrite.rs:97:58
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 97 |     ( $macro:path, $writer:expr, $format:literal, $($val:expr_2021),+ $(,)? ) => {
[INFO] [stdout]    |                                                          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 67 |     ( $expr:expr_2021 ) => {
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/write.rs:22:28
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ( $macro:path, $writer:expr, expect $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ( $macro:path, $writer:expr_2021, expect $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/write.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ( $macro:path, $writer:expr, try $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ( $macro:path, $writer:expr_2021, try $(, $($args:tt)*)? ) => {
[INFO] [stdout]    |                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/writer.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ( $expr:expr ) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/macros/writer.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ( $expr:expr ) => {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]     |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/macros/writer_expr.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ( $expr:expr ) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ( $expr:expr_2021 ) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/write_fns.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ( docs: { $( $doc:expr ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ( docs: { $( $doc:expr_2021 ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stdout]    |                       ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/write_fns.rs:11:18
[INFO] [stderr]    |
[INFO] [stderr] 11 |     ( docs: { $( $doc:expr_2021 ),* $(,)? }, item: { $item:item } ) => {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stderr]    Migrating tests/io_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/concat_try_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/extern_fn.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed tests/extern_fn.rs (1 fix)
[INFO] [stderr]    Migrating tests/fmt_try_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/cchar_fmt_try_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/unsafe_fn1_path.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/readme.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/try_dbg.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/unsafe_fn2.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed tests/unsafe_fn2.rs (1 fix)
[INFO] [stderr]    Migrating tests/io_try_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/version.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/cchar_io_try_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/concat_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/dbg.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/io_partial_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/line_writer.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/panic_hook.rs from 2021 edition to 2024
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> tests/panic_hook.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | custom_print::define_init_panic_hook!(concat, crate::write);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::define_init_panic_hook` which comes from the expansion of the macro `custom_print::define_init_panic_hook` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating tests/shadowing_with_use.rs from 2021 edition to 2024
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating tests/try_print.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/buf_writer.rs from 2021 edition to 2024
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.85s
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]     Checking custom-print v1.0.0 (/tmp/fixit)
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]   --> tests/extern_fn.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         print!("first");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::define_writer_expr` which comes from the expansion of the macro `print` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]   --> tests/extern_fn.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         print!("first {}\nthird\n", black_box("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::define_writer_expr` which comes from the expansion of the macro `print` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]   --> tests/extern_fn.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         println!();
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::define_writer_expr` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]   --> tests/extern_fn.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         println!("first");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::define_writer_expr` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]   --> tests/extern_fn.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         println!("first {}\nthird\n", black_box("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::define_writer_expr` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custom-print` (test "extern_fn") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> tests/panic_hook.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | custom_print::define_init_panic_hook!(concat, crate::write);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::define_init_panic_hook` which comes from the expansion of the macro `custom_print::define_init_panic_hook` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to check after updating to 2024
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "bb1422f8e0fd70b52426ee21a32527e91c81382e26d400ea1d7c0e2afe82008e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1422f8e0fd70b52426ee21a32527e91c81382e26d400ea1d7c0e2afe82008e", kill_on_drop: false }`
[INFO] [stdout] bb1422f8e0fd70b52426ee21a32527e91c81382e26d400ea1d7c0e2afe82008e