[INFO] fetching crate lootr 0.7.0...
[INFO] checking lootr-0.7.0 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] extracting crate lootr 0.7.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate lootr 0.7.0 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 lootr 0.7.0
[INFO] finished tweaking crates.io crate lootr 0.7.0
[INFO] tweaked toml for crates.io crate lootr 0.7.0 written to /workspace/builds/worker-1-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 16 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7fd5478a1be062c29e1a0d74373defe92293ac27b50a7e78b08986ce77ff4d03
[INFO] running `Command { std: "docker" "start" "-a" "7fd5478a1be062c29e1a0d74373defe92293ac27b50a7e78b08986ce77ff4d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fd5478a1be062c29e1a0d74373defe92293ac27b50a7e78b08986ce77ff4d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd5478a1be062c29e1a0d74373defe92293ac27b50a7e78b08986ce77ff4d03", kill_on_drop: false }`
[INFO] [stdout] 7fd5478a1be062c29e1a0d74373defe92293ac27b50a7e78b08986ce77ff4d03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b92cd1e9bc737a53a09b1fdfe4bb09637331f44660793b345a13641497790adb
[INFO] running `Command { std: "docker" "start" "-a" "b92cd1e9bc737a53a09b1fdfe4bb09637331f44660793b345a13641497790adb", 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]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ascii_tree v0.1.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lootr v0.7.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `lootr`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/lib.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/lib.rs:320:7
[INFO] [stderr]     |
[INFO] [stderr] 320 |     ( $x: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/lib.rs:332:48
[INFO] [stderr]     |
[INFO] [stderr] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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/lib.rs:333:53
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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/lib.rs:334:57
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3:expr_2021) *,)*
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/lib.rs:388:6
[INFO] [stderr]     |
[INFO] [stderr] 388 |     ($e:expr_2021, $($es: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/lib.rs:388:22
[INFO] [stderr]     |
[INFO] [stderr] 388 |     ($e:expr_2021, $($es: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 6 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: `gen` is a keyword in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.gen::<f32>() < threshold {
[INFO] [stdout]     |                    ^^^ help: you can use a raw identifier to stay compatible: `r#gen`
[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 #49716 <https://github.com/rust-lang/rust/issues/49716>
[INFO] [stdout]     = note: `--force-warn keyword-idents-2024` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:320:10
[INFO] [stdout]     |
[INFO] [stdout] 320 |     ( $x: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] 320 |     ( $x: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/lib.rs:332:52
[INFO] [stdout]     |
[INFO] [stdout] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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/lib.rs:333:57
[INFO] [stdout]     |
[INFO] [stdout] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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/lib.rs:334:61
[INFO] [stdout]     |
[INFO] [stdout] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3: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] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3:expr_2021) *,)*
[INFO] [stdout]     |                                                             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |     ($e:expr, $($es: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] 388 |     ($e:expr_2021, $($es: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/lib.rs:388:21
[INFO] [stdout]     |
[INFO] [stdout] 388 |     ($e:expr, $($es: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] 388 |     ($e:expr, $($es:expr_2021),+) => {
[INFO] [stdout]     |                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.gen::<f32>() < threshold {
[INFO] [stdout]     |                    ^^^ help: you can use a raw identifier to stay compatible: `r#gen`
[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 #49716 <https://github.com/rust-lang/rust/issues/49716>
[INFO] [stdout]     = note: `--force-warn keyword-idents-2024` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:320:10
[INFO] [stdout]     |
[INFO] [stdout] 320 |     ( $x: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] 320 |     ( $x: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/lib.rs:332:52
[INFO] [stdout]     |
[INFO] [stdout] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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/lib.rs:333:57
[INFO] [stdout]     |
[INFO] [stdout] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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/lib.rs:334:61
[INFO] [stdout]     |
[INFO] [stdout] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3: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] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3:expr_2021) *,)*
[INFO] [stdout]     |                                                             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |     ($e:expr, $($es: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] 388 |     ($e:expr_2021, $($es: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/lib.rs:388:21
[INFO] [stdout]     |
[INFO] [stdout] 388 |     ($e:expr, $($es: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] 388 |     ($e:expr, $($es:expr_2021),+) => {
[INFO] [stdout]     |                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `lootr`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/lib.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/lib.rs:320:7
[INFO] [stderr]     |
[INFO] [stderr] 320 |     ( $x: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/lib.rs:332:48
[INFO] [stderr]     |
[INFO] [stderr] 332 |         (@ $b1:ident $($i1:ident $($a1:ident = $v1: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/lib.rs:333:53
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $(@ $b2:ident $($i2:ident $($a2:ident = $v2: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/lib.rs:334:57
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 $(@ $b3:ident $($i3:ident $($a3:ident = $v3:expr_2021) *,)*
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]     = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]    --> src/lib.rs:388:6
[INFO] [stderr]     |
[INFO] [stderr] 388 |     ($e:expr_2021, $($es: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/lib.rs:388:22
[INFO] [stderr]     |
[INFO] [stderr] 388 |     ($e:expr_2021, $($es: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 6 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.42s
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]     Checking lootr v0.7.0 (/tmp/fixit)
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]    --> src/lib.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.gen::<f32>() < threshold {
[INFO] [stdout]     |                    ^^^ expected identifier, found reserved keyword
[INFO] [stdout]     |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.r#gen::<f32>() < threshold {
[INFO] [stdout]     |                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]    --> src/lib.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.gen::<f32>() < threshold {
[INFO] [stdout]     |                    ^^^ expected identifier, found reserved keyword
[INFO] [stdout]     |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]     |
[INFO] [stdout] 277 |             if rng.r#gen::<f32>() < threshold {
[INFO] [stdout]     |                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lootr` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lootr` (lib test) due to 2 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" "b92cd1e9bc737a53a09b1fdfe4bb09637331f44660793b345a13641497790adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92cd1e9bc737a53a09b1fdfe4bb09637331f44660793b345a13641497790adb", kill_on_drop: false }`
[INFO] [stdout] b92cd1e9bc737a53a09b1fdfe4bb09637331f44660793b345a13641497790adb