[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 }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bdab4fb0d8bcc6de8c95a736db815796e4a3231
[INFO] checking losvedir/elixir_parser against master#b389b0ab72cb0aa9acf4df0ae0c0e12090782da9 for pr-128351-1
[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 }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/losvedir/elixir_parser on toolchain b389b0ab72cb0aa9acf4df0ae0c0e12090782da9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b389b0ab72cb0aa9acf4df0ae0c0e12090782da9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] 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" "+b389b0ab72cb0aa9acf4df0ae0c0e12090782da9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+b389b0ab72cb0aa9acf4df0ae0c0e12090782da9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
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[INFO] [stderr]    Compiling lalrpop v0.16.2
[INFO] [stderr]    Compiling elixir_parser v0.1.0 (/opt/rustwide/workdir)
[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)]` 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: 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)]` 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)]` 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe 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/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` 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].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(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/nightly/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].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(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/nightly/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].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(IntoIterator::into_iter([t]).collect()),
[INFO] [stdout]     |                                       ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[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/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` 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].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(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/nightly/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].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(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/nightly/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].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(IntoIterator::into_iter([t]).collect()),
[INFO] [stdout]     |                                       ++++++++++++++++++++++++   ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.05s
[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 4`
[INFO] running `Command { std: "docker" "inspect" "1a33b4a67815ead2b4259544b46b4666fd613a8af82043e57c9de7b8c6c6055a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a33b4a67815ead2b4259544b46b4666fd613a8af82043e57c9de7b8c6c6055a", kill_on_drop: false }`
[INFO] [stdout] 1a33b4a67815ead2b4259544b46b4666fd613a8af82043e57c9de7b8c6c6055a
