[INFO] updating cached repository https://github.com/MichaelObvious/opsc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/MichaelObvious/opsc
[INFO] [stderr]    353f4e9..3ac15d0  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ac15d090fe72cf6d8e809b24fb29e9217658cee
[INFO] checking MichaelObvious/opsc against try#e6563ac70cbfd3196492061900e9e9793e065e4d for pr-69410
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelObvious%2Fopsc" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelObvious/opsc on toolchain e6563ac70cbfd3196492061900e9e9793e065e4d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MichaelObvious/opsc
[INFO] finished tweaking git repo https://github.com/MichaelObvious/opsc
[INFO] tweaked toml for git repo https://github.com/MichaelObvious/opsc written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelObvious/opsc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bfd459719c9fa21d0855c791f8b71047d836c604b1aae5f58d985d814ef7b606
[INFO] running `"docker" "start" "-a" "bfd459719c9fa21d0855c791f8b71047d836c604b1aae5f58d985d814ef7b606"`
[INFO] [stderr]     Checking opsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/ast/ast.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast/ast.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Illegal(Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Declaration`
[INFO] [stderr]   --> src/ast/ast.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Declaration(Box<Expression>, Box<Expression>, bool),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assignement`
[INFO] [stderr]   --> src/ast/ast.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Assignement(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]   --> src/ast/ast.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Expression(Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Illegal(Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]   --> src/ast/ast.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Type(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Identifier(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]   --> src/ast/ast.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Integer(u32),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]   --> src/ast/ast.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Float(f64),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/ast/ast.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Bool(bool),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Byte`
[INFO] [stderr]   --> src/ast/ast.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Byte(u8),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/ast.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Set(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetRange`
[INFO] [stderr]   --> src/ast/ast.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     SetRange(Box<Expression>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetComprehension`
[INFO] [stderr]   --> src/ast/ast.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     SetComprehension(Box<Expression>, Box<Expression>, Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stderr]   --> src/ast/ast.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Unary(Operator, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> src/ast/ast.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Binary(Box<Expression>, Operator, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunCall`
[INFO] [stderr]   --> src/ast/ast.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     FunCall(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/ast/ast.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Function(Vec<Expression>, Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast/ast.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Return(Option<Box<Expression>>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]  --> src/ast/types.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Natural`
[INFO] [stderr]  --> src/ast/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Natural,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/ast/types.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Integer,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Real`
[INFO] [stderr]  --> src/ast/types.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Real,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]  --> src/ast/types.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Boolean,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Byte`
[INFO] [stderr]  --> src/ast/types.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Byte,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]   --> src/ast/types.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Tuple(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/types.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Set(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/ast/types.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Function(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Custom`
[INFO] [stderr]   --> src/ast/types.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Custom(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_string`
[INFO] [stderr]   --> src/ast/types.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn from_string(s: &String) -> Type {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Parse`
[INFO] [stderr]  --> src/errors/errors.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Parse(u8, Box<Token>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/ast/ast.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast/ast.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Illegal(Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Declaration`
[INFO] [stderr]   --> src/ast/ast.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Declaration(Box<Expression>, Box<Expression>, bool),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assignement`
[INFO] [stderr]   --> src/ast/ast.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Assignement(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]   --> src/ast/ast.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Expression(Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Illegal(Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]   --> src/ast/ast.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Type(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Identifier(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]   --> src/ast/ast.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Integer(u32),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]   --> src/ast/ast.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Float(f64),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/ast/ast.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Bool(bool),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Byte`
[INFO] [stderr]   --> src/ast/ast.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Byte(u8),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/ast.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Set(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetRange`
[INFO] [stderr]   --> src/ast/ast.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     SetRange(Box<Expression>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetComprehension`
[INFO] [stderr]   --> src/ast/ast.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     SetComprehension(Box<Expression>, Box<Expression>, Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stderr]   --> src/ast/ast.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Unary(Operator, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> src/ast/ast.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Binary(Box<Expression>, Operator, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunCall`
[INFO] [stderr]   --> src/ast/ast.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     FunCall(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/ast/ast.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Function(Vec<Expression>, Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast/ast.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Return(Option<Box<Expression>>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]  --> src/ast/types.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Natural`
[INFO] [stderr]  --> src/ast/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Natural,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/ast/types.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Integer,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Real`
[INFO] [stderr]  --> src/ast/types.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Real,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]  --> src/ast/types.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Boolean,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Byte`
[INFO] [stderr]  --> src/ast/types.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Byte,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]   --> src/ast/types.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Tuple(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/types.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Set(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/ast/types.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Function(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Custom`
[INFO] [stderr]   --> src/ast/types.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Custom(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_string`
[INFO] [stderr]   --> src/ast/types.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn from_string(s: &String) -> Type {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Parse`
[INFO] [stderr]  --> src/errors/errors.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Parse(u8, Box<Token>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "bfd459719c9fa21d0855c791f8b71047d836c604b1aae5f58d985d814ef7b606"`
[INFO] running `"docker" "rm" "-f" "bfd459719c9fa21d0855c791f8b71047d836c604b1aae5f58d985d814ef7b606"`
[INFO] [stdout] bfd459719c9fa21d0855c791f8b71047d836c604b1aae5f58d985d814ef7b606