[INFO] cloning repository https://github.com/ettolrach/sqarlet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ettolrach/sqarlet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fettolrach%2Fsqarlet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fettolrach%2Fsqarlet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e48970a6084543a59f6d328d5cfcd2322ea90c0c
[INFO] checking ettolrach/sqarlet against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fettolrach%2Fsqarlet" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ettolrach/sqarlet
[INFO] finished tweaking git repo https://github.com/ettolrach/sqarlet
[INFO] tweaked toml for git repo https://github.com/ettolrach/sqarlet written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ettolrach/sqarlet on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ettolrach/sqarlet 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1002c9d68364cae03dd2b8b0a12b454145af7b1fec69c52ec505c9b679376603
[INFO] running `Command { std: "docker" "start" "-a" "1002c9d68364cae03dd2b8b0a12b454145af7b1fec69c52ec505c9b679376603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1002c9d68364cae03dd2b8b0a12b454145af7b1fec69c52ec505c9b679376603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1002c9d68364cae03dd2b8b0a12b454145af7b1fec69c52ec505c9b679376603", kill_on_drop: false }`
[INFO] [stdout] 1002c9d68364cae03dd2b8b0a12b454145af7b1fec69c52ec505c9b679376603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64d5c1279fa8fb7f175afaa886c3b27575783124c84494d2a3f6ad7b321470fc
[INFO] running `Command { std: "docker" "start" "-a" "64d5c1279fa8fb7f175afaa886c3b27575783124c84494d2a3f6ad7b321470fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking sqarl-implementation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 |             crate::expr::ExprKind::Set(id, expr) => todo!(),
[INFO] [stdout]    |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:69:44
[INFO] [stdout]    |
[INFO] [stdout] 69 |             crate::expr::ExprKind::Set(id, expr) => todo!(),
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:70:43
[INFO] [stdout]    |
[INFO] [stdout] 70 |             crate::expr::ExprKind::Record(id, items) => todo!(),
[INFO] [stdout]    |                                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `items`
[INFO] [stdout]   --> src/codegen.rs:70:47
[INFO] [stdout]    |
[INFO] [stdout] 70 |             crate::expr::ExprKind::Record(id, items) => todo!(),
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:93:44
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr1`
[INFO] [stdout]   --> src/codegen.rs:93:50
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr2`
[INFO] [stdout]   --> src/codegen.rs:93:57
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exprs`
[INFO] [stdout]   --> src/codegen.rs:93:64
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_exprs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:94:44
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exprs`
[INFO] [stdout]   --> src/codegen.rs:94:54
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_exprs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:95:44
[INFO] [stdout]    |
[INFO] [stdout] 95 |             crate::expr::ExprKind::Receive(id) => todo!(),
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:96:42
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/codegen.rs:96:48
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr1`
[INFO] [stdout]   --> src/codegen.rs:96:58
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/lib.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate(s: &str) -> Result<String, ()> {
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Generator` is never constructed
[INFO] [stdout]  --> src/codegen.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Generator {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `var`, `generate`, and `generate_several` are never used
[INFO] [stdout]    --> src/codegen.rs:11:8
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl Generator {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout]  11 |     fn var(&mut self) -> String {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  22 |     fn generate(
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn generate_several(&mut self, exprs: &[Expr], env: &mut HashMap<Id, String>) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_code` is never used
[INFO] [stdout]    --> src/codegen.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn generate_code(program: &[Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DeclareFromKeyboard`, `Record`, `IfThenElse`, `While`, `Repeat`, and `ForEach` are never constructed
[INFO] [stdout]   --> src/expr.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum ExprKind {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 71 |     DeclareFromKeyboard(Id, Option<Type>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     Record(Id, Vec<Field>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 76 |     /// Conditional.
[INFO] [stdout] 77 |     IfThenElse(Box<Expr>, Vec<Expr>, Vec<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 78 |     While(Box<Expr>, Vec<Expr>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 79 |     Repeat(Vec<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 80 |     For(Id, Box<Expr>, Box<Expr>, Option<Box<Expr>>, Vec<Expr>),
[INFO] [stdout] 81 |     ForEach(Id, Box<Expr>, Vec<Expr>),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprKind` 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: function `read_from_keyboard` is never used
[INFO] [stdout]   --> src/prelude.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn read_from_keyboard() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Record` is never constructed
[INFO] [stdout]    --> src/types.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct Record {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Class` is never constructed
[INFO] [stdout]    --> src/types.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Class {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr:` in this pattern is redundant
[INFO] [stdout]   --> src/codegen.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             expr: expr,
[INFO] [stdout]    |             ^^^^^^^^^^ help: use shorthand field pattern: `expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 |             crate::expr::ExprKind::Set(id, expr) => todo!(),
[INFO] [stdout]    |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:69:44
[INFO] [stdout]    |
[INFO] [stdout] 69 |             crate::expr::ExprKind::Set(id, expr) => todo!(),
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:70:43
[INFO] [stdout]    |
[INFO] [stdout] 70 |             crate::expr::ExprKind::Record(id, items) => todo!(),
[INFO] [stdout]    |                                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `items`
[INFO] [stdout]   --> src/codegen.rs:70:47
[INFO] [stdout]    |
[INFO] [stdout] 70 |             crate::expr::ExprKind::Record(id, items) => todo!(),
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:93:44
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr1`
[INFO] [stdout]   --> src/codegen.rs:93:50
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr2`
[INFO] [stdout]   --> src/codegen.rs:93:57
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exprs`
[INFO] [stdout]   --> src/codegen.rs:93:64
[INFO] [stdout]    |
[INFO] [stdout] 93 |             crate::expr::ExprKind::For(id, expr, expr1, expr2, exprs) => todo!(),
[INFO] [stdout]    |                                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_exprs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:94:44
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exprs`
[INFO] [stdout]   --> src/codegen.rs:94:54
[INFO] [stdout]    |
[INFO] [stdout] 94 |             crate::expr::ExprKind::ForEach(id, expr, exprs) => todo!(),
[INFO] [stdout]    |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_exprs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/codegen.rs:95:44
[INFO] [stdout]    |
[INFO] [stdout] 95 |             crate::expr::ExprKind::Receive(id) => todo!(),
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/codegen.rs:96:42
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/codegen.rs:96:48
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr1`
[INFO] [stdout]   --> src/codegen.rs:96:58
[INFO] [stdout]    |
[INFO] [stdout] 96 |             crate::expr::ExprKind::BinOp(expr, operator, expr1) => todo!(),
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_expr1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/lib.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate(s: &str) -> Result<String, ()> {
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Generator` is never constructed
[INFO] [stdout]  --> src/codegen.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Generator {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `var`, `generate`, and `generate_several` are never used
[INFO] [stdout]    --> src/codegen.rs:11:8
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl Generator {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout]  11 |     fn var(&mut self) -> String {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  22 |     fn generate(
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn generate_several(&mut self, exprs: &[Expr], env: &mut HashMap<Id, String>) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_code` is never used
[INFO] [stdout]    --> src/codegen.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn generate_code(program: &[Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operator` is never used
[INFO] [stdout]   --> src/expr.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum Operator {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `arg_types` and `result_type` are never used
[INFO] [stdout]   --> src/expr.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Operator {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 37 |     pub fn arg_types(&self) -> (Type, Type) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn result_type(&self) -> &Type {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExprKind` is never used
[INFO] [stdout]   --> src/expr.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum ExprKind {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]   --> src/expr.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct Expr {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> src/parse.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Position {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_from_keyboard` is never used
[INFO] [stdout]   --> src/prelude.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn read_from_keyboard() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TypeError` is never used
[INFO] [stdout]   --> src/typechecking.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum TypeError {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/typechecking.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn check<'a>(expr: &'a Expr, context: &'a mut HashMap<Id, Type>) -> Result<&'a Type, TypeError> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_exprs` is never used
[INFO] [stdout]    --> src/typechecking.rs:187:4
[INFO] [stdout]     |
[INFO] [stdout] 187 | fn check_exprs(exprs: &[Expr], context: &mut HashMap<Id, Type>) -> Result<(), TypeError> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `typecheck_program` is never used
[INFO] [stdout]    --> src/typechecking.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn typecheck_program(exprs: &[Expr]) -> Result<(), TypeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Record` is never constructed
[INFO] [stdout]    --> src/types.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct Record {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Class` is never constructed
[INFO] [stdout]    --> src/types.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Class {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr:` in this pattern is redundant
[INFO] [stdout]   --> src/codegen.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             expr: expr,
[INFO] [stdout]    |             ^^^^^^^^^^ help: use shorthand field pattern: `expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "64d5c1279fa8fb7f175afaa886c3b27575783124c84494d2a3f6ad7b321470fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64d5c1279fa8fb7f175afaa886c3b27575783124c84494d2a3f6ad7b321470fc", kill_on_drop: false }`
[INFO] [stdout] 64d5c1279fa8fb7f175afaa886c3b27575783124c84494d2a3f6ad7b321470fc