[INFO] cloning repository https://github.com/Spu7Nix/done-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Spu7Nix/done-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpu7Nix%2Fdone-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpu7Nix%2Fdone-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67c47ccb3e63c3dc3f372462951459aabf9259fb
[INFO] checking Spu7Nix/done-lang against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpu7Nix%2Fdone-lang" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Spu7Nix/done-lang
[INFO] finished tweaking git repo https://github.com/Spu7Nix/done-lang
[INFO] tweaked toml for git repo https://github.com/Spu7Nix/done-lang written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Spu7Nix/done-lang on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Spu7Nix/done-lang 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logos-derive v0.12.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a
[INFO] running `Command { std: "docker" "start" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a", 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" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a", 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" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking internment v0.5.4
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking donelang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:661:35
[INFO] [stdout]     |
[INFO] [stdout] 661 |         Some(Token::Number(n)) => (Expr::Number(n)),
[INFO] [stdout]     |                                   ^               ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/parser.rs:604:13
[INFO] [stdout]     |
[INFO] [stdout] 604 |     #![warn(unused_parens)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 661 -         Some(Token::Number(n)) => (Expr::Number(n)),
[INFO] [stdout] 661 +         Some(Token::Number(n)) => Expr::Number(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:662:42
[INFO] [stdout]     |
[INFO] [stdout] 662 |         Some(Token::StringLiteral(s)) => (Expr::Str(s)),
[INFO] [stdout]     |                                          ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 662 -         Some(Token::StringLiteral(s)) => (Expr::Str(s)),
[INFO] [stdout] 662 +         Some(Token::StringLiteral(s)) => Expr::Str(s),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/parser.rs:789:5
[INFO] [stdout]     |
[INFO] [stdout] 789 |     'expr_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:661:35
[INFO] [stdout]     |
[INFO] [stdout] 661 |         Some(Token::Number(n)) => (Expr::Number(n)),
[INFO] [stdout]     |                                   ^               ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/parser.rs:604:13
[INFO] [stdout]     |
[INFO] [stdout] 604 |     #![warn(unused_parens)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 661 -         Some(Token::Number(n)) => (Expr::Number(n)),
[INFO] [stdout] 661 +         Some(Token::Number(n)) => Expr::Number(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:662:42
[INFO] [stdout]     |
[INFO] [stdout] 662 |         Some(Token::StringLiteral(s)) => (Expr::Str(s)),
[INFO] [stdout]     |                                          ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 662 -         Some(Token::StringLiteral(s)) => (Expr::Str(s)),
[INFO] [stdout] 662 +         Some(Token::StringLiteral(s)) => Expr::Str(s),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/parser.rs:789:5
[INFO] [stdout]     |
[INFO] [stdout] 789 |     'expr_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/builtin.rs:49:29
[INFO] [stdout]     |
[INFO] [stdout]  49 |                               i += 1;
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/builtin.rs:44:23
[INFO] [stdout]     |
[INFO] [stdout]  44 |                       | args | {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] help: `args` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/builtin.rs:44:23
[INFO] [stdout]     |
[INFO] [stdout]  44 |                       | args | {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] help: `i` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/builtin.rs:73:29
[INFO] [stdout]     |
[INFO] [stdout]  73 |                               i += 1;
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 | / builtin_patterns! {
[INFO] [stdout] 131 | |     is equal to (: A, : B) => A == B,
[INFO] [stdout] 132 | |     is greater than (number: A, number: B) => A > B,
[INFO] [stdout] 133 | |     is less than (number: A, number: B) => A < B,
[INFO] [stdout] 134 | |     is empty (list: A) => A.is_empty(),
[INFO] [stdout] 135 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in the macro `builtin_patterns` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/builtin.rs:49:29
[INFO] [stdout]     |
[INFO] [stdout]  49 |                               i += 1;
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/builtin.rs:44:23
[INFO] [stdout]     |
[INFO] [stdout]  44 |                       | args | {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] help: `args` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/builtin.rs:44:23
[INFO] [stdout]     |
[INFO] [stdout]  44 |                       | args | {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] help: `i` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/builtin.rs:45:29
[INFO] [stdout]     |
[INFO] [stdout]  45 |                           let mut i = 0;
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 | / builtin_funcs! {
[INFO] [stdout] 108 | |     fn added with (number A, number B) -> number => A + B,
[INFO] [stdout] 109 | |     fn subtracted by (number A, number B) -> number => A - B,
[INFO] [stdout] 110 | |     fn multiplied by (number A, number B) -> number => A * B,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     fn concatenated with (list A, list B) -> list => A.iter().chain(B.iter()).cloned().collect(),
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: this warning originates in the macro `builtin_funcs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/builtin.rs:73:29
[INFO] [stdout]     |
[INFO] [stdout]  73 |                               i += 1;
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 | / builtin_patterns! {
[INFO] [stdout] 131 | |     is equal to (: A, : B) => A == B,
[INFO] [stdout] 132 | |     is greater than (number: A, number: B) => A > B,
[INFO] [stdout] 133 | |     is less than (number: A, number: B) => A < B,
[INFO] [stdout] 134 | |     is empty (list: A) => A.is_empty(),
[INFO] [stdout] 135 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in the macro `builtin_patterns` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]    --> src/parser.rs:791:32
[INFO] [stdout]     |
[INFO] [stdout] 791 |             Some(Token::Symbol(symbol)) => {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `And` and `Or` are never constructed
[INFO] [stdout]    --> src/parser.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub enum PatternExpr {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 386 |     Match(Match),
[INFO] [stdout] 387 |     And(Box<PatternExpr>, Box<PatternExpr>),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 388 |     Or(Box<PatternExpr>, Box<PatternExpr>),
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PatternExpr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]    --> src/parser.rs:791:32
[INFO] [stdout]     |
[INFO] [stdout] 791 |             Some(Token::Symbol(symbol)) => {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `And` and `Or` are never constructed
[INFO] [stdout]    --> src/parser.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub enum PatternExpr {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 386 |     Match(Match),
[INFO] [stdout] 387 |     And(Box<PatternExpr>, Box<PatternExpr>),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 388 |     Or(Box<PatternExpr>, Box<PatternExpr>),
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PatternExpr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `Command { std: "docker" "inspect" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a", kill_on_drop: false }`
[INFO] [stdout] 52f8e5339caf5bb972e6e9fca3fe5948c83fe76490464cb8894622ae6fbb8d2a
