[INFO] cloning repository https://github.com/Marwes/haskell-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Marwes/haskell-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarwes%2Fhaskell-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarwes%2Fhaskell-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1dbde0937e65939eae8752605dde52c96a6a6e2
[INFO] checking Marwes/haskell-compiler/c1dbde0937e65939eae8752605dde52c96a6a6e2 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarwes%2Fhaskell-compiler" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Marwes/haskell-compiler 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] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Marwes/haskell-compiler
[INFO] finished tweaking git repo https://github.com/Marwes/haskell-compiler
[INFO] tweaked toml for git repo https://github.com/Marwes/haskell-compiler written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Marwes/haskell-compiler 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5347f415d492ff81e7acf8400179a85a23622df3cfce95f910e3c181cf839726
[INFO] running `Command { std: "docker" "start" "-a" "5347f415d492ff81e7acf8400179a85a23622df3cfce95f910e3c181cf839726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5347f415d492ff81e7acf8400179a85a23622df3cfce95f910e3c181cf839726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5347f415d492ff81e7acf8400179a85a23622df3cfce95f910e3c181cf839726", kill_on_drop: false }`
[INFO] [stdout] 5347f415d492ff81e7acf8400179a85a23622df3cfce95f910e3c181cf839726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 632737c00029a9f1a69c4249d66653cb9de65fbb8078f79d90a88f6e1232a197
[INFO] running `Command { std: "docker" "start" "-a" "632737c00029a9f1a69c4249d66653cb9de65fbb8078f79d90a88f6e1232a197", 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 log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking haskell-compiler v0.0.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `haskell_compiler`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/main.rs
[INFO] [stderr]   * src/parser.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/main.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ($e:expr_2021, $f:expr_2021, $($p:pat),*) => ({
[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/main.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ($e:expr_2021, $f:expr_2021, $($p:pat),*) => ({
[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/parser.rs:65:6
[INFO] [stderr]    |
[INFO] [stderr] 65 |     ($e: expr_2021, $p: ident (..)) => ({
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:71:6
[INFO] [stderr]    |
[INFO] [stderr] 71 |     ($e: expr_2021, $p: ident) => ({
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:80:6
[INFO] [stderr]    |
[INFO] [stderr] 80 |     ($e: expr_2021, $p: ident ($x: ident)) => ({
[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/parser.rs:89:6
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ($e: expr_2021, $p: pat) => (
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 |     ($parser: expr_2021, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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/parser.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |     ($parser: expr_2021, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]  --> src/deriving.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut gen = DerivingGen { name_supply: NameSupply::new() };
[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] [stderr] 
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]   --> src/deriving.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 bindings.push(gen.generate_eq(data));
[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] 
[INFO] [stdout] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]   --> src/deriving.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 let b = gen.generate_ord(data);
[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] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/parser.rs:99:6
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ($e:expr, $f:expr, $($p:pat),*) => ({
[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] 15 |     ($e:expr_2021, $f:expr, $($p:pat),*) => ({
[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/main.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ($e:expr, $f:expr, $($p:pat),*) => ({
[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] 15 |     ($e:expr, $f:expr_2021, $($p:pat),*) => ({
[INFO] [stdout]    |                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: expr_2021),+) => { {
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |     ($e: expr, $p: ident (..)) => ({
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 65 |     ($e: expr_2021, $p: ident (..)) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     ($e: expr, $p: ident) => ({
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 71 |     ($e: expr_2021, $p: ident) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: unused macro definition: `expect1`
[INFO] [stdout]   --> src/parser.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 | macro_rules! expect1 {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 |     ($e: expr, $p: ident ($x: ident)) => ({
[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] 80 |     ($e: expr_2021, $p: ident ($x: ident)) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: unused macro definition: `matches`
[INFO] [stdout]   --> src/parser.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! matches {
[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/parser.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($e: expr, $p: pat) => (
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($e: expr_2021, $p: pat) => (
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:98:15
[INFO] [stdout]    |
[INFO] [stdout] 98 |     ($parser: expr, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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] 98 |     ($parser: expr_2021, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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/parser.rs:98:35
[INFO] [stdout]    |
[INFO] [stdout] 98 |     ($parser: expr, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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] 98 |     ($parser: expr, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[INFO] [stdout]    |                                   ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/parser.rs:99:26
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:99:15
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr_2021, $token: expr, $($expected: 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/parser.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr, $token: expr_2021, $($expected: expr),+) => { {
[INFO] [stdout]    |                             ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: expr_2021),+) => { {
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:99:48
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr, $token: expr, $($expected: expr_2021),+) => { {
[INFO] [stdout]    |                                                ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] warning: unused imports: `Application` and `Variable`
[INFO] [stdout]  --> src/core.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::Type::{Application, Variable};
[INFO] [stdout]   |                              ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: unused import: `Constructor`
[INFO] [stdout]  --> src/core.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::module::{Constructor, DataDefinition, TypeDeclaration, Newtype};
[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: function `tuple_type` is never used
[INFO] [stdout]    --> src/types.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub fn tuple_type(n: usize) -> (String, Type) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: method `visit_module` is never used
[INFO] [stdout]    --> src/module.rs:295:8
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn visit_module(&mut self, module: &Module<Ident>) {
[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: function `walk_module` is never used
[INFO] [stdout]    --> src/module.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: method `has_instance` is never used
[INFO] [stdout]   --> src/typecheck.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Types {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn has_instance(&self, classname: Name, typ: &TcType) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stdout] warning: method `valid` is never used
[INFO] [stdout]    --> src/lexer.rs:251:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl <Stream : Iterator<Item=char>> Lexer<Stream> {
[INFO] [stdout]     | ------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 251 |     pub fn valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/parser.rs:99:47
[INFO] [stdout] warning: field `from` is never read
[INFO] [stdout]   --> src/graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Edge {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 24 |     from: VertexIndex,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: method `get_assembly` is never used
[INFO] [stdout]    --> src/vm.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl <'a> VM {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 179 |     pub fn get_assembly(&self, index: usize) -> &Assembly {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: expr_2021),+) => { {
[INFO] [stdout] warning: associated function `from_expr` is never used
[INFO] [stdout]   --> src/core.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Module<Id> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn from_expr(expr: Expr<Id>) -> Module<Id> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] warning: method `visit_pattern` is never used
[INFO] [stdout]    --> src/core.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 210 |     pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |               ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 217 |         fn visit_pattern(&mut self, _pattern: &Pattern<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: method `visit_pattern` is never used
[INFO] [stdout]    --> src/core.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub trait Visitor<Ident>: Sized {
[INFO] [stdout]     |               ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 276 |         fn visit_pattern(&mut self, _pattern: &mut Pattern<Ident>) {
[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: trait `Visitor` is never used
[INFO] [stdout]    --> src/core.rs:330:15
[INFO] [stdout]     |
[INFO] [stdout] 330 |     pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stdout] warning: function `walk_module` is never used
[INFO] [stdout]    --> src/core.rs:348:12
[INFO] [stdout]     |
[INFO] [stdout] 348 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
[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: function `walk_binding` is never used
[INFO] [stdout]    --> src/core.rs:357:12
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: function `walk_expr` is never used
[INFO] [stdout]    --> src/core.rs:365:12
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused macro definition: `expect1`
[INFO] [stdout] warning: function `walk_alternative` is never used
[INFO] [stdout]    --> src/core.rs:390:12
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   --> src/parser.rs:79:14
[INFO] [stdout] warning: function `translate_expr` is never used
[INFO] [stdout]    --> src/core.rs:415:12
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn translate_expr(expr: module::TypedExpr<Name>) -> Expr<Id<Name>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: `if let` assigns a shorter lifetime since Edition 2024
[INFO] [stdout]    --> src/typecheck.rs:554:20
[INFO] [stdout]     |
[INFO] [stdout] 554 |                 if let Type::Variable(ref rvar) = **r {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   this value has a significant drop implementation which may observe a major change in drop order and requires your discretion
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #124085 <https://github.com/rust-lang/rust/issues/124085>
[INFO] [stdout] help: the value is now dropped here in Edition 2024
[INFO] [stdout]    --> src/typecheck.rs:574:17
[INFO] [stdout]     |
[INFO] [stdout] 574 |                 }
[INFO] [stdout]     |                 ^
[INFO] [stdout]     = note: `--force-warn if-let-rescope` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: a `match` with a single arm can preserve the drop order up to Edition 2021
[INFO] [stdout]     |
[INFO] [stdout] 554 ~                 match **r { Type::Variable(ref rvar) => {
[INFO] [stdout] 555 |                     constraints.iter()
[INFO] [stdout] ...
[INFO] [stdout] 573 |                         .unwrap_or_else(|| self.check_instance_constraints(constraints, &**lvar, &**ltype, new_constraints))
[INFO] [stdout] 574 ~                 } _ => {
[INFO] [stdout] 575 |                     Err(intern("Unknown error"))
[INFO] [stdout] 576 ~                 }}
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 79 | macro_rules! expect1 {
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `matches`
[INFO] [stderr]   --> src/parser.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 | macro_rules! matches {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `haskell_compiler`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/main.rs
[INFO] [stderr]   * src/parser.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/main.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ($e:expr_2021, $f:expr_2021, $($p:pat),*) => ({
[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/main.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ($e:expr_2021, $f:expr_2021, $($p:pat),*) => ({
[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/parser.rs:65:6
[INFO] [stderr]    |
[INFO] [stderr] 65 |     ($e: expr_2021, $p: ident (..)) => ({
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:71:6
[INFO] [stderr]    |
[INFO] [stderr] 71 |     ($e: expr_2021, $p: ident) => ({
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:80:6
[INFO] [stderr]    |
[INFO] [stderr] 80 |     ($e: expr_2021, $p: ident ($x: ident)) => ({
[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/parser.rs:89:6
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ($e: expr_2021, $p: pat) => (
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #123742 <https://github.com/rust-lang/rust/issues/123742> for more information
[INFO] [stderr]    = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable
[INFO] [stderr]   --> src/parser.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 |     ($parser: expr_2021, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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/parser.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |     ($parser: expr_2021, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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/parser.rs:99:6
[INFO] [stderr]    |
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: 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/parser.rs:99:26
[INFO] [stderr]    |
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: 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/parser.rs:99:47
[INFO] [stderr]    |
[INFO] [stderr] 99 |     ($parser: expr_2021, $token: expr_2021, $($expected: expr_2021),+) => { {
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]  --> src/deriving.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut gen = DerivingGen { name_supply: NameSupply::new() };
[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] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]   --> src/deriving.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 bindings.push(gen.generate_eq(data));
[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] 
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] warning: `gen` is a keyword in the 2024 edition
[INFO] [stdout]   --> src/deriving.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 let b = gen.generate_ord(data);
[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] 
[INFO] [stdout] 
[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] warning: unused macro definition: `expect1`
[INFO] [stderr]   --> src/parser.rs:79:14
[INFO] [stderr]    |
[INFO] [stderr] 79 | macro_rules! expect1 {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `matches`
[INFO] [stderr]   --> src/parser.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 | macro_rules! matches {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors; 2 warnings emitted
[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/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ($e:expr, $f:expr, $($p:pat),*) => ({
[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] 15 |     ($e:expr_2021, $f:expr, $($p:pat),*) => ({
[INFO] [stdout]    |         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/main.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ($e:expr, $f:expr, $($p:pat),*) => ({
[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] 15 |     ($e:expr, $f:expr_2021, $($p:pat),*) => ({
[INFO] [stdout]    |                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |     ($e: expr, $p: ident (..)) => ({
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 65 |     ($e: expr_2021, $p: ident (..)) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     ($e: expr, $p: ident) => ({
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 71 |     ($e: expr_2021, $p: ident) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `expect1`
[INFO] [stdout]   --> src/parser.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 | macro_rules! expect1 {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 |     ($e: expr, $p: ident ($x: ident)) => ({
[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] 80 |     ($e: expr_2021, $p: ident ($x: ident)) => ({
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `matches`
[INFO] [stdout]   --> src/parser.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! matches {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($e: expr, $p: pat) => (
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ($e: expr_2021, $p: pat) => (
[INFO] [stdout]    |          ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:98:15
[INFO] [stdout]    |
[INFO] [stdout] 98 |     ($parser: expr, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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] 98 |     ($parser: expr_2021, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[INFO] [stdout]    |               ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:98:35
[INFO] [stdout]    |
[INFO] [stdout] 98 |     ($parser: expr, [$($expected: expr),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[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] 98 |     ($parser: expr, [$($expected: expr_2021),+]) => { unexpected!($parser, $parser.lexer.current().token, $($expected),+) };
[INFO] [stdout]    |                                   ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]   --> src/parser.rs:99:15
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr_2021, $token: expr, $($expected: 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/parser.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr, $token: expr_2021, $($expected: 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/parser.rs:99:48
[INFO] [stdout]    |
[INFO] [stdout] 99 |     ($parser: expr, $token: expr, $($expected: 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] 99 |     ($parser: expr, $token: expr, $($expected: expr_2021),+) => { {
[INFO] [stdout]    |                                                ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Application` and `Variable`
[INFO] [stdout]  --> src/core.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::Type::{Application, Variable};
[INFO] [stdout]   |                              ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Constructor`
[INFO] [stdout]  --> src/core.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::module::{Constructor, DataDefinition, TypeDeclaration, Newtype};
[INFO] [stdout]   |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuple_type` is never used
[INFO] [stdout]    --> src/types.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub fn tuple_type(n: usize) -> (String, Type) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_type` is never used
[INFO] [stdout]    --> src/types.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn char_type() -> Type {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `int_type` is never used
[INFO] [stdout]    --> src/types.rs:213:8
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub fn int_type() -> Type {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bool_type` is never used
[INFO] [stdout]    --> src/types.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub fn bool_type() -> Type {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_type` is never used
[INFO] [stdout]    --> src/types.rs:223:8
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub fn double_type() -> Type {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_type` is never used
[INFO] [stdout]    --> src/types.rs:228:8
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub fn function_type(arg: &Type, result: &Type) -> Type {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `io` is never used
[INFO] [stdout]    --> src/types.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub fn io(typ: Type) -> Type {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unit` is never used
[INFO] [stdout]    --> src/types.rs:243:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub fn unit() -> Type {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `visit_module` is never used
[INFO] [stdout]    --> src/module.rs:295:8
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn visit_module(&mut self, module: &Module<Ident>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_module` is never used
[INFO] [stdout]    --> src/module.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compile_string` is never used
[INFO] [stdout]     --> src/compiler.rs:1051:8
[INFO] [stdout]      |
[INFO] [stdout] 1051 | pub fn compile_string(module: &str) -> Result<Vec<Assembly>, ::std::string::String> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `has_instance` is never used
[INFO] [stdout]   --> src/typecheck.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Types {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn has_instance(&self, classname: Name, typ: &TcType) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `typecheck_module_` and `typecheck_expr_` are never used
[INFO] [stdout]    --> src/typecheck.rs:434:12
[INFO] [stdout]     |
[INFO] [stdout] 235 | impl <'a> TypeEnvironment<'a> {
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 434 |     pub fn typecheck_module_(&mut self, module: &mut Module<Name>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 437 |     pub fn typecheck_expr_(&mut self, expr: &mut TypedExpr<Name>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `typecheck_string` is never used
[INFO] [stdout]     --> src/typecheck.rs:1613:8
[INFO] [stdout]      |
[INFO] [stdout] 1613 | pub fn typecheck_string(module: &str) -> Result<Vec<Module<Name>>, ::std::string::String> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `valid` is never used
[INFO] [stdout]    --> src/lexer.rs:251:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl <Stream : Iterator<Item=char>> Lexer<Stream> {
[INFO] [stdout]     | ------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 251 |     pub fn valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_string` is never used
[INFO] [stdout]     --> src/parser.rs:1136:8
[INFO] [stdout]      |
[INFO] [stdout] 1136 | pub fn parse_string(contents: &str) -> ParseResult<Vec<Module>> {
[INFO] [stdout]      |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `from` is never read
[INFO] [stdout]   --> src/graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Edge {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 24 |     from: VertexIndex,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute_main_string` is never used
[INFO] [stdout]    --> src/vm.rs:625:8
[INFO] [stdout]     |
[INFO] [stdout] 625 | pub fn execute_main_string(module: &str) -> Result<Option<VMResult>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]    --> src/core.rs:210:15
[INFO] [stdout]     |
[INFO] [stdout] 210 |     pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_module` is never used
[INFO] [stdout]    --> src/core.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_binding` is never used
[INFO] [stdout]    --> src/core.rs:233:12
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: &Binding<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_expr` is never used
[INFO] [stdout]    --> src/core.rs:237:12
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: &Expr<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_alternative` is never used
[INFO] [stdout]    --> src/core.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: &Alternative<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.76s
[INFO] [stdout] warning: method `visit_pattern` is never used
[INFO] [stdout]    --> src/core.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub trait Visitor<Ident>: Sized {
[INFO] [stdout]     |               ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 276 |         fn visit_pattern(&mut self, _pattern: &mut Pattern<Ident>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]    --> src/core.rs:330:15
[INFO] [stdout]     |
[INFO] [stdout] 330 |     pub trait Visitor<Ident> : Sized {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_module` is never used
[INFO] [stdout]    --> src/core.rs:348:12
[INFO] [stdout]     |
[INFO] [stdout] 348 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_binding` is never used
[INFO] [stdout]    --> src/core.rs:357:12
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_expr` is never used
[INFO] [stdout]    --> src/core.rs:365:12
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `walk_alternative` is never used
[INFO] [stdout]    --> src/core.rs:390:12
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_and_print_expr` is never used
[INFO] [stdout]   --> src/repl.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn run_and_print_expr(expr_str: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `if let` assigns a shorter lifetime since Edition 2024
[INFO] [stdout]    --> src/typecheck.rs:554:20
[INFO] [stdout]     |
[INFO] [stdout] 554 |                 if let Type::Variable(ref rvar) = **r {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   this value has a significant drop implementation which may observe a major change in drop order and requires your discretion
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #124085 <https://github.com/rust-lang/rust/issues/124085>
[INFO] [stdout] help: the value is now dropped here in Edition 2024
[INFO] [stdout]    --> src/typecheck.rs:574:17
[INFO] [stdout]     |
[INFO] [stdout] 574 |                 }
[INFO] [stdout]     |                 ^
[INFO] [stdout]     = note: `--force-warn if-let-rescope` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: a `match` with a single arm can preserve the drop order up to Edition 2021
[INFO] [stdout]     |
[INFO] [stdout] 554 ~                 match **r { Type::Variable(ref rvar) => {
[INFO] [stdout] 555 |                     constraints.iter()
[INFO] [stdout] ...
[INFO] [stdout] 573 |                         .unwrap_or_else(|| self.check_instance_constraints(constraints, &**lvar, &**ltype, new_constraints))
[INFO] [stdout] 574 ~                 } _ => {
[INFO] [stdout] 575 |                     Err(intern("Unknown error"))
[INFO] [stdout] 576 ~                 }}
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 49 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]     Checking haskell-compiler v0.0.2 (/tmp/fixit)
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]  --> src/deriving.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut gen = DerivingGen { name_supply: NameSupply::new() };
[INFO] [stdout]   |             ^^^ expected identifier, found reserved keyword
[INFO] [stdout]   |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut r#gen = DerivingGen { name_supply: NameSupply::new() };
[INFO] [stdout]   |             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]  --> src/deriving.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut gen = DerivingGen { name_supply: NameSupply::new() };
[INFO] [stdout]   |             ^^^ expected identifier, found reserved keyword
[INFO] [stdout]   |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut r#gen = DerivingGen { name_supply: NameSupply::new() };
[INFO] [stdout]   |             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found reserved keyword `gen`
[INFO] [stdout]   --> src/deriving.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 bindings.push(gen.generate_eq(data));
[INFO] [stdout]    |                               ^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found reserved keyword `gen`
[INFO] [stdout]   --> src/deriving.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 bindings.push(gen.generate_eq(data));
[INFO] [stdout]    |                               ^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found reserved keyword `gen`
[INFO] [stdout]   --> src/deriving.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 let b = gen.generate_ord(data);
[INFO] [stdout]    |                         ^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found reserved keyword `gen`
[INFO] [stdout]   --> src/deriving.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 let b = gen.generate_ord(data);
[INFO] [stdout]    |                         ^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `expect1`
[INFO] [stdout]   --> src/parser.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 | macro_rules! expect1 {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `matches`
[INFO] [stdout]   --> src/parser.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! matches {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Application` and `Variable`
[INFO] [stdout]  --> src/core.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::Type::{Application, Variable};
[INFO] [stdout]   |                              ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Constructor`
[INFO] [stdout]  --> src/core.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::module::{Constructor, DataDefinition, TypeDeclaration, Newtype};
[INFO] [stdout]   |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `expect1`
[INFO] [stdout]   --> src/parser.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 | macro_rules! expect1 {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `matches`
[INFO] [stdout]   --> src/parser.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! matches {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Application` and `Variable`
[INFO] [stdout]  --> src/core.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::Type::{Application, Variable};
[INFO] [stdout]   |                              ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Constructor`
[INFO] [stdout]  --> src/core.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::module::{Constructor, DataDefinition, TypeDeclaration, Newtype};
[INFO] [stdout]   |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `haskell-compiler` (bin "haskell-compiler") due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `haskell-compiler` (bin "haskell-compiler" test) due to 4 previous errors; 4 warnings emitted
[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" "632737c00029a9f1a69c4249d66653cb9de65fbb8078f79d90a88f6e1232a197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632737c00029a9f1a69c4249d66653cb9de65fbb8078f79d90a88f6e1232a197", kill_on_drop: false }`
[INFO] [stdout] 632737c00029a9f1a69c4249d66653cb9de65fbb8078f79d90a88f6e1232a197