[INFO] cloning repository https://github.com/H1ghBre4k3r/y-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/H1ghBre4k3r/y-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FH1ghBre4k3r%2Fy-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FH1ghBre4k3r%2Fy-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 841d1a102f03b54b7da64b5f96ff0b51d9a0aefd
[INFO] testing H1ghBre4k3r/y-lang/841d1a102f03b54b7da64b5f96ff0b51d9a0aefd against nightly-2024-10-28 for randomize-layout
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FH1ghBre4k3r%2Fy-lang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/H1ghBre4k3r/y-lang on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/H1ghBre4k3r/y-lang
[INFO] finished tweaking git repo https://github.com/H1ghBre4k3r/y-lang
[INFO] tweaked toml for git repo https://github.com/H1ghBre4k3r/y-lang written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/H1ghBre4k3r/y-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_meta v2.7.14
[INFO] [stderr]   Downloaded pest_generator v2.7.14
[INFO] [stderr]   Downloaded pest_derive v2.7.14
[INFO] [stderr]   Downloaded pest v2.7.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b401f7dd7897b580bed99a70a6c0990902c851d244c6e3b79051a76d7941b000
[INFO] running `Command { std: "docker" "start" "-a" "b401f7dd7897b580bed99a70a6c0990902c851d244c6e3b79051a76d7941b000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b401f7dd7897b580bed99a70a6c0990902c851d244c6e3b79051a76d7941b000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b401f7dd7897b580bed99a70a6c0990902c851d244c6e3b79051a76d7941b000", kill_on_drop: false }`
[INFO] [stdout] b401f7dd7897b580bed99a70a6c0990902c851d244c6e3b79051a76d7941b000
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c7b03dc0989166448afa599bff9af467921bee78e5d743c651a2909244bf4a1
[INFO] running `Command { std: "docker" "start" "-a" "9c7b03dc0989166448afa599bff9af467921bee78e5d743c651a2909244bf4a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling memchr v2.6.2
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling unescape v0.1.0
[INFO] [stderr]    Compiling anstream v0.6.7
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling syn v2.0.8
[INFO] [stderr]    Compiling simple_logger v5.0.0
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]    Compiling include_dir v0.7.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling pest v2.7.14
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling pest_meta v2.7.14
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling pest_generator v2.7.14
[INFO] [stderr]    Compiling pest_derive v2.7.14
[INFO] [stderr]    Compiling y-lang v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::parser::*`
[INFO] [stdout]   --> src/ast/mod.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub use self::parser::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/binary_op.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct UndefinedOpError(String);
[INFO] [stdout]    |            ---------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/prefix_op.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UndefinedPrefixOpError(String);
[INFO] [stdout]    |            ---------------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedPrefixOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/typechecker/variabletype.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct VariableParseError(String);
[INFO] [stdout]    |            ------------------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:134:40
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 if *other_item_type == Box::new(Char) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 if *item_type == Box::new(Char) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "9c7b03dc0989166448afa599bff9af467921bee78e5d743c651a2909244bf4a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c7b03dc0989166448afa599bff9af467921bee78e5d743c651a2909244bf4a1", kill_on_drop: false }`
[INFO] [stdout] 9c7b03dc0989166448afa599bff9af467921bee78e5d743c651a2909244bf4a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4461b51ad2750628ff2c3d07ef831d1622bdb79d6392e1cc143fb2aac5159987
[INFO] running `Command { std: "docker" "start" "-a" "4461b51ad2750628ff2c3d07ef831d1622bdb79d6392e1cc143fb2aac5159987", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-utils v0.0.1 (/opt/rustwide/workdir/test-utils)
[INFO] [stdout] warning: unused import: `self::parser::*`
[INFO] [stdout]   --> src/ast/mod.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub use self::parser::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/binary_op.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct UndefinedOpError(String);
[INFO] [stdout]    |            ---------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/prefix_op.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UndefinedPrefixOpError(String);
[INFO] [stdout]    |            ---------------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedPrefixOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/typechecker/variabletype.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct VariableParseError(String);
[INFO] [stdout]    |            ------------------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:134:40
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 if *other_item_type == Box::new(Char) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 if *item_type == Box::new(Char) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling y-lang v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::parser::*`
[INFO] [stdout]   --> src/ast/mod.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub use self::parser::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/binary_op.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct UndefinedOpError(String);
[INFO] [stdout]    |            ---------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/prefix_op.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UndefinedPrefixOpError(String);
[INFO] [stdout]    |            ---------------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `UndefinedPrefixOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/typechecker/variabletype.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct VariableParseError(String);
[INFO] [stdout]    |            ------------------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:134:40
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 if *other_item_type == Box::new(Char) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/typechecker/variabletype.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 if *item_type == Box::new(Char) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "4461b51ad2750628ff2c3d07ef831d1622bdb79d6392e1cc143fb2aac5159987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4461b51ad2750628ff2c3d07ef831d1622bdb79d6392e1cc143fb2aac5159987", kill_on_drop: false }`
[INFO] [stdout] 4461b51ad2750628ff2c3d07ef831d1622bdb79d6392e1cc143fb2aac5159987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ad350d567d596ef058d2793bed08416e1e59d1fc02c46d28a5ad306dc318314b
[INFO] running `Command { std: "docker" "start" "-a" "ad350d567d596ef058d2793bed08416e1e59d1fc02c46d28a5ad306dc318314b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self::parser::*`
[INFO] [stderr]   --> src/ast/mod.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub use self::parser::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast/binary_op.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct UndefinedOpError(String);
[INFO] [stderr]    |            ---------------- ^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `UndefinedOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast/prefix_op.rs:12:35
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct UndefinedPrefixOpError(String);
[INFO] [stderr]    |            ---------------------- ^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `UndefinedPrefixOpError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/typechecker/variabletype.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct VariableParseError(String);
[INFO] [stderr]    |            ------------------ ^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary allocation, use `&` instead
[INFO] [stderr]    --> src/typechecker/variabletype.rs:134:40
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 if *other_item_type == Box::new(Char) {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_allocation)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary allocation, use `&` instead
[INFO] [stderr]    --> src/typechecker/variabletype.rs:143:34
[INFO] [stderr]     |
[INFO] [stderr] 143 |                 if *item_type == Box::new(Char) {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `y-lang` (lib) generated 6 warnings (run `cargo fix --lib -p y-lang` to apply 1 suggestion)
[INFO] [stderr] warning: `y-lang` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/y_lang-34d90459fe472465)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test typechecker::variabletype::tests::test_convert_from_unknown ... ok
[INFO] [stdout] test typechecker::variabletype::tests::test_convert_from_any ... ok
[INFO] [stdout] test typechecker::variabletype::tests::test_conver_to_unknown ... ok
[INFO] [stdout] test typechecker::variabletype::tests::test_convert_to_any ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/why/main.rs (/opt/rustwide/target/debug/deps/why-bcc5e209134d86ec)
[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] [stderr]      Running tests/ackermann.rs (/opt/rustwide/target/debug/deps/ackermann-3ac7fd9e331316b5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test compile_and_run_ackermann ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- compile_and_run_ackermann stdout ----
[INFO] [stdout] Error: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     compile_and_run_ackermann
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test ackermann`
[INFO] running `Command { std: "docker" "inspect" "ad350d567d596ef058d2793bed08416e1e59d1fc02c46d28a5ad306dc318314b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad350d567d596ef058d2793bed08416e1e59d1fc02c46d28a5ad306dc318314b", kill_on_drop: false }`
[INFO] [stdout] ad350d567d596ef058d2793bed08416e1e59d1fc02c46d28a5ad306dc318314b
