[INFO] cloning repository https://github.com/jrvidal/r5.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrvidal/r5.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae715768cf6c46ab228ede11aaddbb7f8f428260
[INFO] checking jrvidal/r5.rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrvidal/r5.rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jrvidal/r5.rs
[INFO] finished tweaking git repo https://github.com/jrvidal/r5.rs
[INFO] tweaked toml for git repo https://github.com/jrvidal/r5.rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jrvidal/r5.rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.41
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded env_logger v0.5.10
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded atty v0.2.10
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.0
[INFO] [stderr]   Downloaded regex v1.0.0
[INFO] [stderr]   Downloaded gc v0.3.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa481cda6bd21ba51e3f8b850526e1849c356ee449094d0f618a2efe5e193a4f
[INFO] running `Command { std: "docker" "start" "-a" "fa481cda6bd21ba51e3f8b850526e1849c356ee449094d0f618a2efe5e193a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa481cda6bd21ba51e3f8b850526e1849c356ee449094d0f618a2efe5e193a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa481cda6bd21ba51e3f8b850526e1849c356ee449094d0f618a2efe5e193a4f", kill_on_drop: false }`
[INFO] [stdout] fa481cda6bd21ba51e3f8b850526e1849c356ee449094d0f618a2efe5e193a4f
[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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d51897d533a239544da6321b0b4c1d79b4ac807aad42447e859ce91f403fb47
[INFO] running `Command { std: "docker" "start" "-a" "4d51897d533a239544da6321b0b4c1d79b4ac807aad42447e859ce91f403fb47", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking gc v0.3.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking r5rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/compiler/mod.rs:771:20
[INFO] [stdout]     |
[INFO] [stdout] 771 | ) -> Result<Option<(Vec<Instruction>)>, CompilerError> {
[INFO] [stdout]     |                    ^                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 771 - ) -> Result<Option<(Vec<Instruction>)>, CompilerError> {
[INFO] [stdout] 771 + ) -> Result<Option<Vec<Instruction>>, CompilerError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:622:21
[INFO] [stdout]     |
[INFO] [stdout] 622 |             Some('0'...'9') | Some('a'...'f') | Some('s') | Some('l') => if pounds == 0
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:622:39
[INFO] [stdout]     |
[INFO] [stdout] 622 |             Some('0'...'9') | Some('a'...'f') | Some('s') | Some('l') => if pounds == 0
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:579:20
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 'a'...'f' if !$decimal && $radix == 16 => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] ...
[INFO] [stdout] 623 |                 && is_valid_digit!(peek.unwrap(), radix, num_type == Number::Dec)
[INFO] [stdout]     |                    -------------------------------------------------------------- in this macro invocation
[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: this warning originates in the macro `is_valid_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:581:20
[INFO] [stdout]     |
[INFO] [stdout] 581 |                 '2'...'7' if $radix >= 8 => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] ...
[INFO] [stdout] 623 |                 && is_valid_digit!(peek.unwrap(), radix, num_type == Number::Dec)
[INFO] [stdout]     |                    -------------------------------------------------------------- in this macro invocation
[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: this warning originates in the macro `is_valid_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/macros.rs:27:16
[INFO] [stdout]     |
[INFO] [stdout] 27  |             '0'...'9' => true,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/number/mod.rs:686:24
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Some(x) if is_digit!(x) => {
[INFO] [stdout]     |                        ------------ in this macro invocation
[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: this warning originates in the macro `is_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 | (Some('0'...'9'), _)
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:129:39
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 | (Some('+'), Some('0'...'9'))
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:130:39
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 | (Some('-'), Some('0'...'9'))
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:131:39
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 | (Some('.'), Some('0'...'9')) => match NumberToken::parse(stream) {
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:132:31
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     Ok(nt) => ret_val!(Token::Number(nt)),
[INFO] [stdout]     |                               --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:162:28
[INFO] [stdout]     |
[INFO] [stdout] 162 |                     '(' => ret_val!(Token::Open),
[INFO] [stdout]     |                            --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:163:28
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     ')' => ret_val!(Token::Close),
[INFO] [stdout]     |                            ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:164:28
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     '`' => ret_val!(Token::BackQuote),
[INFO] [stdout]     |                            -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     '\'' => ret_val!(Token::SingleQuote),
[INFO] [stdout]     |                             ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:173:55
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         (x, _) if is_delimiter!(x) => ret_val!(Token::Dot),
[INFO] [stdout]     |                                                       -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:197:33
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   ret_val!(Token::Character(next.unwrap()))
[INFO] [stdout]     |                       ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         ret_val!(Token::Identifier(c.to_string()))
[INFO] [stdout]     |                         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   ret_val!(Token::CommaAt)
[INFO] [stdout]     |                       ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:214:30
[INFO] [stdout]     |
[INFO] [stdout] 214 |                         _ => ret_val!(Token::Comma),
[INFO] [stdout]     |                              ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |                         _ => ret_val!(Token::Identifier(d.to_string())),
[INFO] [stdout]     |                              ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:261:24
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 '"' => ret_val!(Token::String(string_buf.clone())),
[INFO] [stdout]     |                        ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:276:26
[INFO] [stdout]     |
[INFO] [stdout] 276 |                     _ => ret_val!(Token::Identifier(string_buf.clone())),
[INFO] [stdout]     |                          ----------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/macros.rs:27:16
[INFO] [stdout]     |
[INFO] [stdout] 27  |             '0'...'9' => true,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:290:22
[INFO] [stdout]     |
[INFO] [stdout] 290 |     is_initial(c) || is_digit!(c) || is_special_subsequent(c)
[INFO] [stdout]     |                      ------------ in this macro invocation
[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: this warning originates in the macro `is_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:296:12
[INFO] [stdout]     |
[INFO] [stdout] 296 |         'a'...'z' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PartialOrd` is imported redundantly
[INFO] [stdout]    --> src/vm/stdlib.rs:377:5
[INFO] [stdout]     |
[INFO] [stdout] 377 | use std::cmp::PartialOrd;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `PartialOrd` is already defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/compiler/mod.rs:771:20
[INFO] [stdout]     |
[INFO] [stdout] 771 | ) -> Result<Option<(Vec<Instruction>)>, CompilerError> {
[INFO] [stdout]     |                    ^                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 771 - ) -> Result<Option<(Vec<Instruction>)>, CompilerError> {
[INFO] [stdout] 771 + ) -> Result<Option<Vec<Instruction>>, CompilerError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parse_complex` is imported redundantly
[INFO] [stdout]  --> src/lexer/number/test.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `parse_complex` is already imported here
[INFO] [stdout] 3 | use super::{parse_complex, parse_prefix, parse_real, parse_suffix};
[INFO] [stdout]   |             ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parse_prefix` is imported redundantly
[INFO] [stdout]  --> src/lexer/number/test.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `parse_prefix` is already imported here
[INFO] [stdout] 3 | use super::{parse_complex, parse_prefix, parse_real, parse_suffix};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parse_real` is imported redundantly
[INFO] [stdout]  --> src/lexer/number/test.rs:3:42
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `parse_real` is already imported here
[INFO] [stdout] 3 | use super::{parse_complex, parse_prefix, parse_real, parse_suffix};
[INFO] [stdout]   |                                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parse_suffix` is imported redundantly
[INFO] [stdout]  --> src/lexer/number/test.rs:3:54
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `parse_suffix` is already imported here
[INFO] [stdout] 3 | use super::{parse_complex, parse_prefix, parse_real, parse_suffix};
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:622:21
[INFO] [stdout]     |
[INFO] [stdout] 622 |             Some('0'...'9') | Some('a'...'f') | Some('s') | Some('l') => if pounds == 0
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:622:39
[INFO] [stdout]     |
[INFO] [stdout] 622 |             Some('0'...'9') | Some('a'...'f') | Some('s') | Some('l') => if pounds == 0
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:579:20
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 'a'...'f' if !$decimal && $radix == 16 => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] ...
[INFO] [stdout] 623 |                 && is_valid_digit!(peek.unwrap(), radix, num_type == Number::Dec)
[INFO] [stdout]     |                    -------------------------------------------------------------- in this macro invocation
[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: this warning originates in the macro `is_valid_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/number/mod.rs:581:20
[INFO] [stdout]     |
[INFO] [stdout] 581 |                 '2'...'7' if $radix >= 8 => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] ...
[INFO] [stdout] 623 |                 && is_valid_digit!(peek.unwrap(), radix, num_type == Number::Dec)
[INFO] [stdout]     |                    -------------------------------------------------------------- in this macro invocation
[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: this warning originates in the macro `is_valid_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/macros.rs:27:16
[INFO] [stdout]     |
[INFO] [stdout] 27  |             '0'...'9' => true,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/number/mod.rs:686:24
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Some(x) if is_digit!(x) => {
[INFO] [stdout]     |                        ------------ in this macro invocation
[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: this warning originates in the macro `is_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 | (Some('0'...'9'), _)
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:129:39
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 | (Some('+'), Some('0'...'9'))
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:130:39
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 | (Some('-'), Some('0'...'9'))
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:131:39
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 | (Some('.'), Some('0'...'9')) => match NumberToken::parse(stream) {
[INFO] [stdout]     |                                       ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:132:31
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     Ok(nt) => ret_val!(Token::Number(nt)),
[INFO] [stdout]     |                               --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:162:28
[INFO] [stdout]     |
[INFO] [stdout] 162 |                     '(' => ret_val!(Token::Open),
[INFO] [stdout]     |                            --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:163:28
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     ')' => ret_val!(Token::Close),
[INFO] [stdout]     |                            ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:164:28
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     '`' => ret_val!(Token::BackQuote),
[INFO] [stdout]     |                            -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     '\'' => ret_val!(Token::SingleQuote),
[INFO] [stdout]     |                             ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:173:55
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         (x, _) if is_delimiter!(x) => ret_val!(Token::Dot),
[INFO] [stdout]     |                                                       -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:197:33
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   ret_val!(Token::Character(next.unwrap()))
[INFO] [stdout]     |                       ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         ret_val!(Token::Identifier(c.to_string()))
[INFO] [stdout]     |                         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   ret_val!(Token::CommaAt)
[INFO] [stdout]     |                       ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `ret_val`
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:214:30
[INFO] [stdout]     |
[INFO] [stdout] 214 |                         _ => ret_val!(Token::Comma),
[INFO] [stdout]     |                              ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |                         _ => ret_val!(Token::Identifier(d.to_string())),
[INFO] [stdout]     |                              ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:261:24
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 '"' => ret_val!(Token::String(string_buf.clone())),
[INFO] [stdout]     |                        ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/helpers.rs:50:28
[INFO] [stdout]     |
[INFO] [stdout] 50  |         return ok_some!($x);
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:276:26
[INFO] [stdout]     |
[INFO] [stdout] 276 |                     _ => ret_val!(Token::Identifier(string_buf.clone())),
[INFO] [stdout]     |                          ----------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `ret_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/macros.rs:27:16
[INFO] [stdout]     |
[INFO] [stdout] 27  |             '0'...'9' => true,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lexer/token.rs:290:22
[INFO] [stdout]     |
[INFO] [stdout] 290 |     is_initial(c) || is_digit!(c) || is_special_subsequent(c)
[INFO] [stdout]     |                      ------------ in this macro invocation
[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: this warning originates in the macro `is_digit` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer/token.rs:296:12
[INFO] [stdout]     |
[INFO] [stdout] 296 |         'a'...'z' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Token` is imported redundantly
[INFO] [stdout]    --> src/reader/datum.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     use super::*;
[INFO] [stdout]     |         -------- the item `Token` is already imported here
[INFO] [stdout] 202 |     use lexer::Token;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `VecDeque` is imported redundantly
[INFO] [stdout]    --> src/reader/datum.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     use super::*;
[INFO] [stdout]     |         -------- the item `VecDeque` is already imported here
[INFO] [stdout] 202 |     use lexer::Token;
[INFO] [stdout] 203 |     use std::collections::VecDeque;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PartialOrd` is imported redundantly
[INFO] [stdout]    --> src/vm/stdlib.rs:377:5
[INFO] [stdout]     |
[INFO] [stdout] 377 | use std::cmp::PartialOrd;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `PartialOrd` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]  --> src/helpers.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Tuple2Helper<A, B, E> {
[INFO] [stdout]   |           ------------ method in this trait
[INFO] [stdout] 6 |     fn result(self) -> Result<(A, B), E>;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]   --> src/helpers.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Tuple3Helper<A, B, C, E> {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 19 |     fn result(self) -> Result<(A, B, C), E>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]   --> src/helpers.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait ResultHelper {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 32 |     fn result(self) -> Result<(), ()>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReversedIterator` is never constructed
[INFO] [stdout]     --> src/compiler/mod.rs:1254:8
[INFO] [stdout]      |
[INFO] [stdout] 1254 | struct ReversedIterator<I: DoubleEndedIterator> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Reverse` is never used
[INFO] [stdout]     --> src/compiler/mod.rs:1269:7
[INFO] [stdout]      |
[INFO] [stdout] 1269 | trait Reverse
[INFO] [stdout]      |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lexer/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct TokenizerError {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 41 |     error: TokenErrorClass,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenizerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent` and `bindings` are never read
[INFO] [stdout]   --> src/vm/environment.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct FmtEnvironment<'a, V: Trace + Debug + 'static> {
[INFO] [stdout]    |        -------------- fields in this struct
[INFO] [stdout] 25 |     parent: Option<&'a GcShared<Environment<V>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     bindings: hash_map::Keys<'a, ImmutableString, V>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FmtEnvironment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]   --> src/bin/interpreter.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate env_logger;
[INFO] [stdout]    | ------------------------ the item `env_logger` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 20 |     use env_logger;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustyline` is imported redundantly
[INFO] [stdout]   --> src/bin/interpreter.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rustyline;
[INFO] [stdout]    | ----------------------- the item `rustyline` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 27 |     use rustyline;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]   --> src/bin/interpreter.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate env_logger;
[INFO] [stdout]    | ------------------------ the item `env_logger` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 20 |     use env_logger;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustyline` is imported redundantly
[INFO] [stdout]   --> src/bin/interpreter.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rustyline;
[INFO] [stdout]    | ----------------------- the item `rustyline` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 27 |     use rustyline;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]  --> src/helpers.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Tuple2Helper<A, B, E> {
[INFO] [stdout]   |           ------------ method in this trait
[INFO] [stdout] 6 |     fn result(self) -> Result<(A, B), E>;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]   --> src/helpers.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Tuple3Helper<A, B, C, E> {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 19 |     fn result(self) -> Result<(A, B, C), E>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `result` is never used
[INFO] [stdout]   --> src/helpers.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait ResultHelper {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 32 |     fn result(self) -> Result<(), ()>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReversedIterator` is never constructed
[INFO] [stdout]     --> src/compiler/mod.rs:1254:8
[INFO] [stdout]      |
[INFO] [stdout] 1254 | struct ReversedIterator<I: DoubleEndedIterator> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Reverse` is never used
[INFO] [stdout]     --> src/compiler/mod.rs:1269:7
[INFO] [stdout]      |
[INFO] [stdout] 1269 | trait Reverse
[INFO] [stdout]      |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lexer/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct TokenizerError {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 41 |     error: TokenErrorClass,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenizerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent` and `bindings` are never read
[INFO] [stdout]   --> src/vm/environment.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct FmtEnvironment<'a, V: Trace + Debug + 'static> {
[INFO] [stdout]    |        -------------- fields in this struct
[INFO] [stdout] 25 |     parent: Option<&'a GcShared<Environment<V>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     bindings: hash_map::Keys<'a, ImmutableString, V>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FmtEnvironment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: r5rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "4d51897d533a239544da6321b0b4c1d79b4ac807aad42447e859ce91f403fb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d51897d533a239544da6321b0b4c1d79b4ac807aad42447e859ce91f403fb47", kill_on_drop: false }`
[INFO] [stdout] 4d51897d533a239544da6321b0b4c1d79b4ac807aad42447e859ce91f403fb47