[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] ffb0bb766c1ef026dd3434951770ac35914a232e
[INFO] testing H1ghBre4k3r/y-lang against nightly-2025-01-18+rustflags=-Zrandomize-layout for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FH1ghBre4k3r%2Fy-lang" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/H1ghBre4k3r/y-lang on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "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-2-tc2/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-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c553e088d504ce8059f60a3edd9d600894a1504a9ff64bc525d42d7bd883f53
[INFO] running `Command { std: "docker" "start" "-a" "5c553e088d504ce8059f60a3edd9d600894a1504a9ff64bc525d42d7bd883f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c553e088d504ce8059f60a3edd9d600894a1504a9ff64bc525d42d7bd883f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c553e088d504ce8059f60a3edd9d600894a1504a9ff64bc525d42d7bd883f53", kill_on_drop: false }`
[INFO] [stdout] 5c553e088d504ce8059f60a3edd9d600894a1504a9ff64bc525d42d7bd883f53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7ed863377b52d4f3e0222d25e5b79c5867f9c80bb3dc2d4bbd52dffaf42da7a
[INFO] running `Command { std: "docker" "start" "-a" "b7ed863377b52d4f3e0222d25e5b79c5867f9c80bb3dc2d4bbd52dffaf42da7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling thiserror v2.0.6
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling memchr v2.6.2
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling unescape v0.1.0
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling clap_builder v4.5.26
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]    Compiling simple_logger v5.0.0
[INFO] [stderr]    Compiling include_dir v0.7.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.6
[INFO] [stderr]    Compiling clap_derive v4.5.24
[INFO] [stderr]    Compiling pest v2.7.15
[INFO] [stderr]    Compiling clap v4.5.26
[INFO] [stderr]    Compiling pest_meta v2.7.15
[INFO] [stderr]    Compiling pest_generator v2.7.15
[INFO] [stderr]    Compiling pest_derive v2.7.15
[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 8.50s
[INFO] running `Command { std: "docker" "inspect" "b7ed863377b52d4f3e0222d25e5b79c5867f9c80bb3dc2d4bbd52dffaf42da7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ed863377b52d4f3e0222d25e5b79c5867f9c80bb3dc2d4bbd52dffaf42da7a", kill_on_drop: false }`
[INFO] [stdout] b7ed863377b52d4f3e0222d25e5b79c5867f9c80bb3dc2d4bbd52dffaf42da7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bbf0319afe168a0f6f3bf1703878d6affd9d05300c6da7900d1bfc4dedb8e85
[INFO] running `Command { std: "docker" "start" "-a" "5bbf0319afe168a0f6f3bf1703878d6affd9d05300c6da7900d1bfc4dedb8e85", 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 1.35s
[INFO] running `Command { std: "docker" "inspect" "5bbf0319afe168a0f6f3bf1703878d6affd9d05300c6da7900d1bfc4dedb8e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bbf0319afe168a0f6f3bf1703878d6affd9d05300c6da7900d1bfc4dedb8e85", kill_on_drop: false }`
[INFO] [stdout] 5bbf0319afe168a0f6f3bf1703878d6affd9d05300c6da7900d1bfc4dedb8e85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d276c7b53970e4598c7af64619f1994062dbab55d25cafe857840299a8bab55f
[INFO] running `Command { std: "docker" "start" "-a" "d276c7b53970e4598c7af64619f1994062dbab55d25cafe857840299a8bab55f", 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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/y_lang-0b7d22e877b671ba)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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_from_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-19a937498ba905f0)
[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-e00de83b536326e9)
[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" "d276c7b53970e4598c7af64619f1994062dbab55d25cafe857840299a8bab55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d276c7b53970e4598c7af64619f1994062dbab55d25cafe857840299a8bab55f", kill_on_drop: false }`
[INFO] [stdout] d276c7b53970e4598c7af64619f1994062dbab55d25cafe857840299a8bab55f
