[INFO] fetching crate dwarvish 0.0.1...
[INFO] checking dwarvish-0.0.1 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] extracting crate dwarvish 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate dwarvish 0.0.1 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 dwarvish 0.0.1
[INFO] finished tweaking crates.io crate dwarvish 0.0.1
[INFO] tweaked toml for crates.io crate dwarvish 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate dwarvish 0.0.1 already has a lockfile, it will not be regenerated
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 72acd32e234c31e6f539b82a71e96ce1463c05cb670e653f3285bd0b1284b22c
[INFO] running `Command { std: "docker" "start" "-a" "72acd32e234c31e6f539b82a71e96ce1463c05cb670e653f3285bd0b1284b22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72acd32e234c31e6f539b82a71e96ce1463c05cb670e653f3285bd0b1284b22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72acd32e234c31e6f539b82a71e96ce1463c05cb670e653f3285bd0b1284b22c", kill_on_drop: false }`
[INFO] [stdout] 72acd32e234c31e6f539b82a71e96ce1463c05cb670e653f3285bd0b1284b22c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] dcfa07cde11993f2437c219e9e041c024864eed7a5b61cf9042da50450e3aee3
[INFO] running `Command { std: "docker" "start" "-a" "dcfa07cde11993f2437c219e9e041c024864eed7a5b61cf9042da50450e3aee3", 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 dwarvish v0.0.1 (/tmp/fixit)
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Migrating build.rs from 2021 edition to 2024
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `dwvsh`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/poem/elements/verse/logic.rs
[INFO] [stderr]   * src/poem/read/parse.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/poem/elements/verse/logic.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:43
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:59
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:76
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:92
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                                                            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:6
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout]    = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr_2021, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr_2021, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                           ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:38
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr_2021, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:50
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr_2021, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:61
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr_2021, $self:expr) => {{
[INFO] [stdout]    |                                                             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:73
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr_2021) => {{
[INFO] [stdout]    |                                                                         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/poem/read/parse.rs:67:38
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr_2021, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:52
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:66
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:89:6
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ($chars: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/poem/read/parse.rs:104:6
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:24
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:38
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:52
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:66
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:84
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:101
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                                                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr_2021, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:31
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr_2021, $c:expr, $word:expr) => {
[INFO] [stdout]    |                               ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:40
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr_2021, $word:expr) => {
[INFO] [stdout]    |                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:52
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                                                    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr_2021) => {
[INFO] [stdout]    |                                                    ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($chars: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] 89 |     ($chars:expr_2021) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr_2021, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr_2021, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr_2021, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                               ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:40
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr_2021, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:53
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr_2021, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:65
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr_2021, $env:expr) => {
[INFO] [stdout]     |                                                                 ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:76
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                                            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr_2021) => {
[INFO] [stdout]     |                                                                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to deprecated safe function `std::env::set_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 env::set_var(key, val);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]    = note: for more information, see issue #27970 <https://github.com/rust-lang/rust/issues/27970>
[INFO] [stdout]    = note: `--force-warn deprecated-safe-2024` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: you can wrap the call in an `unsafe` block if you can guarantee that the environment access only happens in single-threaded code
[INFO] [stdout]    |
[INFO] [stdout] 30 +                 // TODO: Audit that the environment access only happens in single-threaded code.
[INFO] [stdout] 31 ~                 unsafe { env::set_var(key, val) };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to deprecated safe function `std::env::remove_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 env::remove_var(stanza);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]    = note: for more information, see issue #27970 <https://github.com/rust-lang/rust/issues/27970>
[INFO] [stdout] help: you can wrap the call in an `unsafe` block if you can guarantee that the environment access only happens in single-threaded code
[INFO] [stdout]    |
[INFO] [stdout] 72 +                 // TODO: Audit that the environment access only happens in single-threaded code.
[INFO] [stdout] 73 ~                 unsafe { env::remove_var(stanza) };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `dwvsh`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/poem/elements/verse/logic.rs
[INFO] [stderr]   * src/poem/read/parse.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/poem/elements/verse/logic.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:43
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:59
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:76
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/elements/verse/logic.rs:17:92
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ($verb:expr_2021, $command:expr_2021, $out:expr_2021, $pids:expr_2021, $env:expr_2021, $self:expr_2021) => {{
[INFO] [stderr]    |                                                                                            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:6
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:38
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:52
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:67:66
[INFO] [stderr]    |
[INFO] [stderr] 67 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $word:expr_2021) => {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/poem/read/parse.rs:89:6
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ($chars: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/poem/read/parse.rs:104:6
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout]    = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr_2021, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr_2021, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                           ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:24
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:38
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:52
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:66
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:84
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/poem/read/parse.rs:104:101
[INFO] [stderr]     |
[INFO] [stderr] 104 |     ($chars:expr_2021, $j:expr_2021, $i:expr_2021, $c:expr_2021, $verse:expr_2021, $word:expr_2021, $env:expr_2021) => {
[INFO] [stderr]     |                                                                                                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:38
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr_2021, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:50
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr_2021, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:61
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr_2021, $self:expr) => {{
[INFO] [stdout]    |                                                             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/elements/verse/logic.rs:17:73
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr) => {{
[INFO] [stdout]    |                                                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ($verb:expr, $command:expr, $out:expr, $pids:expr, $env:expr, $self:expr_2021) => {{
[INFO] [stdout]    |                                                                         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr_2021, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr_2021, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:31
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr_2021, $c:expr, $word:expr) => {
[INFO] [stdout]    |                               ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:40
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr_2021, $word:expr) => {
[INFO] [stdout]    |                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:67:52
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr) => {
[INFO] [stdout]    |                                                    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 67 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $word:expr_2021) => {
[INFO] [stdout]    |                                                    ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/poem/read/parse.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($chars: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] 89 |     ($chars:expr_2021) => {
[INFO] [stdout]    |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr_2021, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr_2021, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                      ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr_2021, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                               ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:40
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr_2021, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                        ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:53
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr_2021, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:65
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr_2021, $env:expr) => {
[INFO] [stdout]     |                                                                 ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/poem/read/parse.rs:104:76
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr) => {
[INFO] [stdout]     |                                                                            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($chars:expr, $j:expr, $i:expr, $c:expr, $verse:expr, $word:expr, $env:expr_2021) => {
[INFO] [stdout]     |                                                                            ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to deprecated safe function `std::env::set_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 env::set_var(key, val);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]    = note: for more information, see issue #27970 <https://github.com/rust-lang/rust/issues/27970>
[INFO] [stdout]    = note: `--force-warn deprecated-safe-2024` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: you can wrap the call in an `unsafe` block if you can guarantee that the environment access only happens in single-threaded code
[INFO] [stdout]    |
[INFO] [stdout] 30 +                 // TODO: Audit that the environment access only happens in single-threaded code.
[INFO] [stdout] 31 ~                 unsafe { env::set_var(key, val) };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to deprecated safe function `std::env::remove_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 env::remove_var(stanza);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]    = note: for more information, see issue #27970 <https://github.com/rust-lang/rust/issues/27970>
[INFO] [stdout] help: you can wrap the call in an `unsafe` block if you can guarantee that the environment access only happens in single-threaded code
[INFO] [stdout]    |
[INFO] [stdout] 72 +                 // TODO: Audit that the environment access only happens in single-threaded code.
[INFO] [stdout] 73 ~                 unsafe { env::remove_var(stanza) };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]    Compiling dwarvish v0.0.1 (/tmp/fixit)
[INFO] [stdout] error[E0133]: call to unsafe function `set_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 env::set_var(key, val);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `remove_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 env::remove_var(stanza);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `set_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 env::set_var(key, val);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `remove_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/poem/anthology/export.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 env::remove_var(stanza);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dwarvish` (bin "dwvsh") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dwarvish` (bin "dwvsh" test) due to 3 previous errors
[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" "dcfa07cde11993f2437c219e9e041c024864eed7a5b61cf9042da50450e3aee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfa07cde11993f2437c219e9e041c024864eed7a5b61cf9042da50450e3aee3", kill_on_drop: false }`
[INFO] [stdout] dcfa07cde11993f2437c219e9e041c024864eed7a5b61cf9042da50450e3aee3