[INFO] cloning repository https://github.com/mutkach/types-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mutkach/types-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmutkach%2Ftypes-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmutkach%2Ftypes-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3c030459320ff4f069deeb954018b1e70f38d26
[INFO] checking mutkach/types-playground against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmutkach%2Ftypes-playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mutkach/types-playground
[INFO] finished tweaking git repo https://github.com/mutkach/types-playground
[INFO] tweaked toml for git repo https://github.com/mutkach/types-playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mutkach/types-playground on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mutkach/types-playground 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_derive v2.8.0
[INFO] [stderr]   Downloaded pest_meta v2.8.0
[INFO] [stderr]   Downloaded pest_generator v2.8.0
[INFO] [stderr]   Downloaded rustyline v16.0.0
[INFO] [stderr]   Downloaded pest v2.8.0
[INFO] [stderr]   Downloaded syn v2.0.102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23
[INFO] running `Command { std: "docker" "start" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]    Compiling syn v2.0.102
[INFO] [stderr]     Checking rustix v1.0.7
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking rustyline v16.0.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking pest v2.8.0
[INFO] [stderr]    Compiling logos-derive v0.15.0
[INFO] [stderr]     Checking logos v0.15.0
[INFO] [stderr]    Compiling pest_meta v2.8.0
[INFO] [stderr]    Compiling pest_generator v2.8.0
[INFO] [stderr]    Compiling pest_derive v2.8.0
[INFO] [stderr]     Checking types-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/stlc/parser.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut ast = vec![];
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_binding_from_idx` and `get_name_from_idx` are never used
[INFO] [stdout]   --> src/stlc/context.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl Context {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn get_binding_from_idx(&self, index: usize) -> Binding {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn get_name_from_idx(&self, index: usize) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TApplication` is never constructed
[INFO] [stdout]   --> src/stlc/ast.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub enum Term {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     TApplication(Box<(Term, Term)>)
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Term` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NameBinding` is never constructed
[INFO] [stdout]   --> src/stlc/ast.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub enum Binding {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 51 |     NameBinding,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Binding` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `var`, `application`, and `lambda` are never used
[INFO] [stdout]    --> src/stlc/ast.rs:86:12
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl TermBuilder {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn var(&mut self, context: &mut Context, name: &str) -> Term {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn application(&self, func: Term, arg: Term) -> Term {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn lambda(&mut self, param: &str, body_fn: impl FnOnce(&mut Self) -> Term) -> Term {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> src/stlc/parser.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse() -> Result<Vec<Term>, Error<Rule>> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/stlc/parser.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut ast = vec![];
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_binding_from_idx` and `get_name_from_idx` are never used
[INFO] [stdout]   --> src/stlc/context.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl Context {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn get_binding_from_idx(&self, index: usize) -> Binding {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn get_name_from_idx(&self, index: usize) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TApplication` is never constructed
[INFO] [stdout]   --> src/stlc/ast.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub enum Term {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     TApplication(Box<(Term, Term)>)
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Term` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NameBinding` is never constructed
[INFO] [stdout]   --> src/stlc/ast.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub enum Binding {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 51 |     NameBinding,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Binding` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `var`, `application`, and `lambda` are never used
[INFO] [stdout]    --> src/stlc/ast.rs:86:12
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl TermBuilder {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn var(&mut self, context: &mut Context, name: &str) -> Term {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn application(&self, func: Term, arg: Term) -> Term {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn lambda(&mut self, param: &str, body_fn: impl FnOnce(&mut Self) -> Term) -> Term {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `STLCParser` is never constructed
[INFO] [stdout]   --> src/stlc/parser.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct STLCParser;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> src/stlc/parser.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse() -> Result<Vec<Term>, Error<Rule>> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_ast` is never used
[INFO] [stdout]   --> src/stlc/parser.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn parse_ast(pair: Pair<Rule>, context: &mut Context) -> Option<Term> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `logos`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | logos = "0.15.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `logos`
[INFO] [stderr] warning: `types-playground` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.30.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23", kill_on_drop: false }`
[INFO] [stdout] 9ba4881eda466474dffc38cccfc1db42555e68a01c083335a6ba125d4f983d23
