[INFO] cloning repository https://github.com/losvedir/elixir_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/losvedir/elixir_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flosvedir%2Felixir_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flosvedir%2Felixir_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bdab4fb0d8bcc6de8c95a736db815796e4a3231
[INFO] checking losvedir/elixir_parser against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flosvedir%2Felixir_parser" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/losvedir/elixir_parser
[INFO] finished tweaking git repo https://github.com/losvedir/elixir_parser
[INFO] tweaked toml for git repo https://github.com/losvedir/elixir_parser written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/losvedir/elixir_parser on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/losvedir/elixir_parser 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" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `elixir_parser` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded lalrpop-util v0.16.2
[INFO] [stderr]   Downloaded opaque-debug v0.2.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.50
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.1
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded rand_os v0.1.1
[INFO] [stderr]   Downloaded ena v0.10.1
[INFO] [stderr]   Downloaded num-bigint v0.2.2
[INFO] [stderr]   Downloaded serde_derive v1.0.84
[INFO] [stderr]   Downloaded rand v0.6.4
[INFO] [stderr]   Downloaded serde v1.0.84
[INFO] [stderr]   Downloaded lalrpop v0.16.2
[INFO] [stderr]   Downloaded syn v0.15.24
[INFO] [stderr]   Downloaded libc v0.2.46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a
[INFO] running `Command { std: "docker" "start" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `elixir_parser` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling ena v0.10.1
[INFO] [stderr]    Compiling lalrpop-util v0.16.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.2
[INFO] [stderr]    Compiling elixir_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num_bigint::ToBigInt`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num_bigint::ToBigInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:487:5
[INFO] [stdout]     |
[INFO] [stdout] 487 |     (t1 == &'&' && t2 == &'&')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 487 -     (t1 == &'&' && t2 == &'&')
[INFO] [stdout] 487 +     t1 == &'&' && t2 == &'&' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:491:5
[INFO] [stdout]     |
[INFO] [stdout] 491 |     (t1 == &'|' && t2 == &'|')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 491 -     (t1 == &'|' && t2 == &'|')
[INFO] [stdout] 491 +     t1 == &'|' && t2 == &'|' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:511:5
[INFO] [stdout]     |
[INFO] [stdout] 511 |     (t1 == &'-' && t2 == &'>')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 511 -     (t1 == &'-' && t2 == &'>')
[INFO] [stdout] 511 +     t1 == &'-' && t2 == &'>' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:515:5
[INFO] [stdout]     |
[INFO] [stdout] 515 |     (t1 == &':' && t2 == &':')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 515 -     (t1 == &':' && t2 == &':')
[INFO] [stdout] 515 +     t1 == &':' && t2 == &':' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:487:5
[INFO] [stdout]     |
[INFO] [stdout] 487 |     (t1 == &'&' && t2 == &'&')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 487 -     (t1 == &'&' && t2 == &'&')
[INFO] [stdout] 487 +     t1 == &'&' && t2 == &'&' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:491:5
[INFO] [stdout]     |
[INFO] [stdout] 491 |     (t1 == &'|' && t2 == &'|')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 491 -     (t1 == &'|' && t2 == &'|')
[INFO] [stdout] 491 +     t1 == &'|' && t2 == &'|' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:511:5
[INFO] [stdout]     |
[INFO] [stdout] 511 |     (t1 == &'-' && t2 == &'>')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 511 -     (t1 == &'-' && t2 == &'>')
[INFO] [stdout] 511 +     t1 == &'-' && t2 == &'>' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lexer.rs:515:5
[INFO] [stdout]     |
[INFO] [stdout] 515 |     (t1 == &':' && t2 == &':')
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 515 -     (t1 == &':' && t2 == &':')
[INFO] [stdout] 515 +     t1 == &':' && t2 == &':' 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:446:32
[INFO] [stdout]     |
[INFO] [stdout] 446 |     fn match_fn(&mut self, f: &Fn(&char) -> bool) -> bool {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 446 |     fn match_fn(&mut self, f: &dyn Fn(&char) -> bool) -> bool {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:446:32
[INFO] [stdout]     |
[INFO] [stdout] 446 |     fn match_fn(&mut self, f: &Fn(&char) -> bool) -> bool {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 446 |     fn match_fn(&mut self, f: &dyn Fn(&char) -> bool) -> bool {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:333:60
[INFO] [stdout]     |
[INFO] [stdout] 333 | ...                   Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 333 -                                     Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout] 333 +                                     Tok::Atom([t1, t2, t3].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 333 -                                     Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout] 333 +                                     Tok::Atom(IntoIterator::into_iter([t1, t2, t3]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:365:52
[INFO] [stdout]     |
[INFO] [stdout] 365 | ...                   Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 365 -                                 Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout] 365 +                                 Tok::Atom([t1, t2].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 365 -                                 Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout] 365 +                                 Tok::Atom(IntoIterator::into_iter([t1, t2]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:393:43
[INFO] [stdout]     |
[INFO] [stdout] 393 | ...                   Tok::Atom([t].into_iter().collect()),
[INFO] [stdout]     |                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 393 -                             Tok::Atom([t].into_iter().collect()),
[INFO] [stdout] 393 +                             Tok::Atom([t].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 393 -                             Tok::Atom([t].into_iter().collect()),
[INFO] [stdout] 393 +                             Tok::Atom(IntoIterator::into_iter([t]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:333:60
[INFO] [stdout]     |
[INFO] [stdout] 333 | ...                   Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 333 -                                     Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout] 333 +                                     Tok::Atom([t1, t2, t3].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 333 -                                     Tok::Atom([t1, t2, t3].into_iter().collect()),
[INFO] [stdout] 333 +                                     Tok::Atom(IntoIterator::into_iter([t1, t2, t3]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:365:52
[INFO] [stdout]     |
[INFO] [stdout] 365 | ...                   Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 365 -                                 Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout] 365 +                                 Tok::Atom([t1, t2].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 365 -                                 Tok::Atom([t1, t2].into_iter().collect()),
[INFO] [stdout] 365 +                                 Tok::Atom(IntoIterator::into_iter([t1, t2]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/lexer.rs:393:43
[INFO] [stdout]     |
[INFO] [stdout] 393 | ...                   Tok::Atom([t].into_iter().collect()),
[INFO] [stdout]     |                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 393 -                             Tok::Atom([t].into_iter().collect()),
[INFO] [stdout] 393 +                             Tok::Atom([t].iter().collect()),
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 393 -                             Tok::Atom([t].into_iter().collect()),
[INFO] [stdout] 393 +                             Tok::Atom(IntoIterator::into_iter([t]).collect()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.45s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a", kill_on_drop: false }`
[INFO] [stdout] 01d0864d4ef3e44ead035d2af1fc3a638a4734166e14b5fcfd314313ef79378a
