Dec 11 16:04:20.392 INFO checking jparoz/huck against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:04:20.393 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 16:04:20.837 INFO [stdout] e8997617c2c2d72d57a0c54c922f6061ddd6779e446317570dcd06bcf25b69f9
Dec 11 16:04:20.839 INFO running `"docker" "start" "-a" "e8997617c2c2d72d57a0c54c922f6061ddd6779e446317570dcd06bcf25b69f9"`
Dec 11 16:04:22.587 INFO [stderr] usermod: no changes
Dec 11 16:04:22.656 INFO [stderr]     Checking huck v0.1.0 (/source)
Dec 11 16:04:23.670 INFO [stderr] warning: variant is never constructed: `TypeSignature`
Dec 11 16:04:23.670 INFO [stderr]   --> src/ast.rs:18:5
Dec 11 16:04:23.670 INFO [stderr]    |
Dec 11 16:04:23.670 INFO [stderr] 18 |     TypeSignature { names: Vec<&'a str>, typ: Type<'a> },
Dec 11 16:04:23.670 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.670 INFO [stderr]    |
Dec 11 16:04:23.670 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 16:04:23.670 INFO [stderr] 
Dec 11 16:04:23.670 INFO [stderr] warning: variant is never constructed: `Lit`
Dec 11 16:04:23.670 INFO [stderr]   --> src/ast.rs:24:5
Dec 11 16:04:23.670 INFO [stderr]    |
Dec 11 16:04:23.670 INFO [stderr] 24 |     Lit(Literal),
Dec 11 16:04:23.670 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.670 INFO [stderr] 
Dec 11 16:04:23.670 INFO [stderr] warning: variant is never constructed: `Var`
Dec 11 16:04:23.670 INFO [stderr]   --> src/ast.rs:25:5
Dec 11 16:04:23.670 INFO [stderr]    |
Dec 11 16:04:23.670 INFO [stderr] 25 |     Var(&'a str),
Dec 11 16:04:23.670 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.670 INFO [stderr] 
Dec 11 16:04:23.670 INFO [stderr] warning: variant is never constructed: `Lam`
Dec 11 16:04:23.670 INFO [stderr]   --> src/ast.rs:26:5
Dec 11 16:04:23.670 INFO [stderr]    |
Dec 11 16:04:23.670 INFO [stderr] 26 |     Lam(Lambda<'a>),
Dec 11 16:04:23.670 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 16:04:23.671 INFO [stderr] 
Dec 11 16:04:23.671 INFO [stderr] warning: variant is never constructed: `App`
Dec 11 16:04:23.671 INFO [stderr]   --> src/ast.rs:27:5
Dec 11 16:04:23.671 INFO [stderr]    |
Dec 11 16:04:23.671 INFO [stderr] 27 |     App(Box<Expr<'a>>, Box<Expr<'a>>),
Dec 11 16:04:23.671 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.671 INFO [stderr] 
Dec 11 16:04:23.671 INFO [stderr] warning: variant is never constructed: `Var`
Dec 11 16:04:23.671 INFO [stderr]   --> src/ast.rs:38:5
Dec 11 16:04:23.671 INFO [stderr]    |
Dec 11 16:04:23.671 INFO [stderr] 38 |     Var(&'a str),
Dec 11 16:04:23.671 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.671 INFO [stderr] 
Dec 11 16:04:23.671 INFO [stderr] warning: variant is never constructed: `Concrete`
Dec 11 16:04:23.671 INFO [stderr]   --> src/ast.rs:39:5
Dec 11 16:04:23.671 INFO [stderr]    |
Dec 11 16:04:23.671 INFO [stderr] 39 |     Concrete(&'a str),
Dec 11 16:04:23.671 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.671 INFO [stderr] 
Dec 11 16:04:23.671 INFO [stderr] warning: variant is never constructed: `App`
Dec 11 16:04:23.671 INFO [stderr]   --> src/ast.rs:40:5
Dec 11 16:04:23.671 INFO [stderr]    |
Dec 11 16:04:23.671 INFO [stderr] 40 |     App(Box<Type<'a>>, Box<Type<'a>>),
Dec 11 16:04:23.671 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.671 INFO [stderr] 
Dec 11 16:04:23.868 INFO [stderr] warning: variant is never constructed: `TypeSignature`
Dec 11 16:04:23.868 INFO [stderr]   --> src/ast.rs:18:5
Dec 11 16:04:23.868 INFO [stderr]    |
Dec 11 16:04:23.868 INFO [stderr] 18 |     TypeSignature { names: Vec<&'a str>, typ: Type<'a> },
Dec 11 16:04:23.868 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.868 INFO [stderr]    |
Dec 11 16:04:23.868 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 16:04:23.868 INFO [stderr] 
Dec 11 16:04:23.868 INFO [stderr] warning: variant is never constructed: `Lit`
Dec 11 16:04:23.868 INFO [stderr]   --> src/ast.rs:24:5
Dec 11 16:04:23.868 INFO [stderr]    |
Dec 11 16:04:23.868 INFO [stderr] 24 |     Lit(Literal),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `Var`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:25:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 25 |     Var(&'a str),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `Lam`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:26:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 26 |     Lam(Lambda<'a>),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `App`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:27:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 27 |     App(Box<Expr<'a>>, Box<Expr<'a>>),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `Var`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:38:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 38 |     Var(&'a str),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `Concrete`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:39:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 39 |     Concrete(&'a str),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.869 INFO [stderr] warning: variant is never constructed: `App`
Dec 11 16:04:23.869 INFO [stderr]   --> src/ast.rs:40:5
Dec 11 16:04:23.869 INFO [stderr]    |
Dec 11 16:04:23.869 INFO [stderr] 40 |     App(Box<Type<'a>>, Box<Type<'a>>),
Dec 11 16:04:23.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:04:23.869 INFO [stderr] 
Dec 11 16:04:23.885 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Dec 11 16:04:23.887 INFO [stderr] su: No module specific data is present
Dec 11 16:04:25.032 INFO running `"docker" "inspect" "e8997617c2c2d72d57a0c54c922f6061ddd6779e446317570dcd06bcf25b69f9"`
Dec 11 16:04:25.482 INFO running `"docker" "rm" "-f" "e8997617c2c2d72d57a0c54c922f6061ddd6779e446317570dcd06bcf25b69f9"`
Dec 11 16:04:25.736 INFO [stdout] e8997617c2c2d72d57a0c54c922f6061ddd6779e446317570dcd06bcf25b69f9