[INFO] cloning repository https://github.com/ThePerkinrex/lamalang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThePerkinrex/lamalang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2Flamalang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2Flamalang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 014328347b60e69db655b30a6fce53b653915beb
[INFO] testing ThePerkinrex/lamalang against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2Flamalang" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThePerkinrex/lamalang on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ThePerkinrex/lamalang
[INFO] finished tweaking git repo https://github.com/ThePerkinrex/lamalang
[INFO] tweaked toml for git repo https://github.com/ThePerkinrex/lamalang written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/ThePerkinrex/lamalang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d75b495cd0537943cea75fafdfd294b14fab7216c2757489f143f4d796c7888
[INFO] running `Command { std: "docker" "start" "-a" "0d75b495cd0537943cea75fafdfd294b14fab7216c2757489f143f4d796c7888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d75b495cd0537943cea75fafdfd294b14fab7216c2757489f143f4d796c7888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d75b495cd0537943cea75fafdfd294b14fab7216c2757489f143f4d796c7888", kill_on_drop: false }`
[INFO] [stdout] 0d75b495cd0537943cea75fafdfd294b14fab7216c2757489f143f4d796c7888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5955d23cf5db17eff7cd638e0259a6c3534963bb3c7763de4b5446526feb5944
[INFO] running `Command { std: "docker" "start" "-a" "5955d23cf5db17eff7cd638e0259a6c3534963bb3c7763de4b5446526feb5944", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling lamalang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 26s
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/backend/js.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::PathBuf`
[INFO] [stdout]  --> src/span.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     path::PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `backend::print_ast`
[INFO] [stdout]  --> src/options.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use backend::print_ast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/backend/interpreter.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/backend/interpreter.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/backend/interpreter.rs:27:56
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/backend/js.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]   |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/backend/js.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/backend/js.rs:17:56
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tree`
[INFO] [stdout]   --> src/parser/mod.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn tree<T: Display>(pairs: Pairs<Rule>, space: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WarnTest`
[INFO] [stdout]   --> src/error.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 12 |     WarnTest,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/error.rs:6:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InfoTest`
[INFO] [stdout]   --> src/error.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InfoTest,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/error.rs:6:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/error.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 52 |     span: Span<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Repl`
[INFO] [stdout]   --> src/fs.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Repl(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `File` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/fs.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_repl_statement`
[INFO] [stdout]   --> src/fs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert_repl_statement(&mut self, statement: String) -> File {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_error`
[INFO] [stdout]    --> src/span.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn into_error<S: ToString>(self, error_code: ErrorCode, message: S) -> Error {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children_dbs`
[INFO] [stdout]  --> src/checker/db.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     children_dbs: HashMap<String, TypeDBNode>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `TypeDB` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/checker/db.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug, Default)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_root`
[INFO] [stdout]   --> src/checker/db.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new_root() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DB`
[INFO] [stdout]   --> src/checker/db.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DB(TypeDB),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Reference`
[INFO] [stdout]   --> src/checker/db.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Reference(ModulePath),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Type`
[INFO] [stdout]   --> src/checker/db.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Type(Type),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Trait`
[INFO] [stdout]   --> src/checker/db.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Trait(TraitDef)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `generics`
[INFO] [stdout]   --> src/checker/db.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     generics: Vec<Span<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `impls`
[INFO] [stdout]   --> src/checker/db.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 29 |     impls: Vec<Impl>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trait_impls`
[INFO] [stdout]   --> src/checker/db.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 30 |     trait_impls: Vec<(ModulePath, TraitImpl)>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_impl`
[INFO] [stdout]   --> src/checker/db.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn add_impl(&mut self, i: Impl) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_trait_impl`
[INFO] [stdout]   --> src/checker/db.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn add_trait_impl(&mut self, path: ModulePath, i: TraitImpl) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5955d23cf5db17eff7cd638e0259a6c3534963bb3c7763de4b5446526feb5944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5955d23cf5db17eff7cd638e0259a6c3534963bb3c7763de4b5446526feb5944", kill_on_drop: false }`
[INFO] [stdout] 5955d23cf5db17eff7cd638e0259a6c3534963bb3c7763de4b5446526feb5944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c186adeec15a1fbff2fa79656fbcb14a20da545fb9224adb2a5c919888b3ec3e
[INFO] running `Command { std: "docker" "start" "-a" "c186adeec15a1fbff2fa79656fbcb14a20da545fb9224adb2a5c919888b3ec3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lamalang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/backend/js.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::PathBuf`
[INFO] [stdout]  --> src/span.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     path::PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `backend::print_ast`
[INFO] [stdout]  --> src/options.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use backend::print_ast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/backend/interpreter.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/backend/interpreter.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/backend/interpreter.rs:27:56
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/backend/js.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]   |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/backend/js.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/backend/js.rs:17:56
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stdout]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tree`
[INFO] [stdout]   --> src/parser/mod.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn tree<T: Display>(pairs: Pairs<Rule>, space: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WarnTest`
[INFO] [stdout]   --> src/error.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 12 |     WarnTest,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/error.rs:6:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InfoTest`
[INFO] [stdout]   --> src/error.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InfoTest,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/error.rs:6:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/error.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 52 |     span: Span<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Repl`
[INFO] [stdout]   --> src/fs.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Repl(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `File` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/fs.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_repl_statement`
[INFO] [stdout]   --> src/fs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert_repl_statement(&mut self, statement: String) -> File {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_error`
[INFO] [stdout]    --> src/span.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn into_error<S: ToString>(self, error_code: ErrorCode, message: S) -> Error {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children_dbs`
[INFO] [stdout]  --> src/checker/db.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     children_dbs: HashMap<String, TypeDBNode>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `TypeDB` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/checker/db.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug, Default)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_root`
[INFO] [stdout]   --> src/checker/db.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new_root() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DB`
[INFO] [stdout]   --> src/checker/db.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DB(TypeDB),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Reference`
[INFO] [stdout]   --> src/checker/db.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Reference(ModulePath),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Type`
[INFO] [stdout]   --> src/checker/db.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Type(Type),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Trait`
[INFO] [stdout]   --> src/checker/db.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Trait(TraitDef)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `generics`
[INFO] [stdout]   --> src/checker/db.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     generics: Vec<Span<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `impls`
[INFO] [stdout]   --> src/checker/db.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 29 |     impls: Vec<Impl>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trait_impls`
[INFO] [stdout]   --> src/checker/db.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 30 |     trait_impls: Vec<(ModulePath, TraitImpl)>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/checker/db.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_impl`
[INFO] [stdout]   --> src/checker/db.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn add_impl(&mut self, i: Impl) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_trait_impl`
[INFO] [stdout]   --> src/checker/db.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn add_trait_impl(&mut self, path: ModulePath, i: TraitImpl) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.90s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/lamalang-61ef29185c922ab0)
[INFO] running `Command { std: "docker" "inspect" "c186adeec15a1fbff2fa79656fbcb14a20da545fb9224adb2a5c919888b3ec3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c186adeec15a1fbff2fa79656fbcb14a20da545fb9224adb2a5c919888b3ec3e", kill_on_drop: false }`
[INFO] [stdout] c186adeec15a1fbff2fa79656fbcb14a20da545fb9224adb2a5c919888b3ec3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cfc76071430873d0a729e25a261ba66891b3663a54f5fd6e57cc168e6b30637b
[INFO] running `Command { std: "docker" "start" "-a" "cfc76071430873d0a729e25a261ba66891b3663a54f5fd6e57cc168e6b30637b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/backend/js.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `path::PathBuf`
[INFO] [stderr]  --> src/span.rs:3:2
[INFO] [stderr]   |
[INFO] [stderr] 3 |     path::PathBuf,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `backend::print_ast`
[INFO] [stderr]  --> src/options.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use backend::print_ast;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/backend/interpreter.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module`
[INFO] [stderr]   --> src/backend/interpreter.rs:27:20
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/backend/interpreter.rs:27:56
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]  --> src/backend/js.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn eval_expr(&self, expr: Span<Expr>, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]   |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module`
[INFO] [stderr]   --> src/backend/js.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/backend/js.rs:17:56
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn codegen(&self, module: crate::modules::ModuleTree, options: CodegenOptions) -> Return<String> {
[INFO] [stderr]    |                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tree`
[INFO] [stderr]   --> src/parser/mod.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn tree<T: Display>(pairs: Pairs<Rule>, space: T) {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WarnTest`
[INFO] [stderr]   --> src/error.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     WarnTest,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/error.rs:6:10
[INFO] [stderr]    |
[INFO] [stderr] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InfoTest`
[INFO] [stderr]   --> src/error.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InfoTest,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `ErrorCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/error.rs:6:10
[INFO] [stderr]    |
[INFO] [stderr] 6  | #[derive(Debug, Clone, Copy)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span`
[INFO] [stderr]   --> src/error.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     span: Span<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Repl`
[INFO] [stderr]   --> src/fs.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Repl(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `File` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/fs.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[derive(Clone)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_repl_statement`
[INFO] [stderr]   --> src/fs.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn insert_repl_statement(&mut self, statement: String) -> File {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_error`
[INFO] [stderr]    --> src/span.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn into_error<S: ToString>(self, error_code: ErrorCode, message: S) -> Error {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `children_dbs`
[INFO] [stderr]  --> src/checker/db.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     children_dbs: HashMap<String, TypeDBNode>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `TypeDB` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/checker/db.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[derive(Debug, Default)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_root`
[INFO] [stderr]   --> src/checker/db.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new_root() -> Self {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DB`
[INFO] [stderr]   --> src/checker/db.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |     DB(TypeDB),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Reference`
[INFO] [stderr]   --> src/checker/db.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Reference(ModulePath),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]   --> src/checker/db.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Type(Type),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Trait`
[INFO] [stderr]   --> src/checker/db.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Trait(TraitDef)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TypeDBNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `generics`
[INFO] [stderr]   --> src/checker/db.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     generics: Vec<Span<String>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `impls`
[INFO] [stderr]   --> src/checker/db.rs:29:2
[INFO] [stderr]    |
[INFO] [stderr] 29 |     impls: Vec<Impl>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trait_impls`
[INFO] [stderr]   --> src/checker/db.rs:30:2
[INFO] [stderr]    |
[INFO] [stderr] 30 |     trait_impls: Vec<(ModulePath, TraitImpl)>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/checker/db.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_impl`
[INFO] [stderr]   --> src/checker/db.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn add_impl(&mut self, i: Impl) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_trait_impl`
[INFO] [stderr]   --> src/checker/db.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn add_trait_impl(&mut self, path: ModulePath, i: TraitImpl) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lamalang` (bin "lamalang" test) generated 27 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lamalang-61ef29185c922ab0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cfc76071430873d0a729e25a261ba66891b3663a54f5fd6e57cc168e6b30637b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc76071430873d0a729e25a261ba66891b3663a54f5fd6e57cc168e6b30637b", kill_on_drop: false }`
[INFO] [stdout] cfc76071430873d0a729e25a261ba66891b3663a54f5fd6e57cc168e6b30637b