Oct 13 03:24:13.164 INFO checking NatTuck/meatball against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 03:24:13.164 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 03:24:13.586 INFO blam! 6e30ff68baefdf5c7144085987d4a94c30be46ac2bb255fdd597db8ece798a82
Oct 13 03:24:13.588 INFO running `"docker" "start" "-a" "6e30ff68baefdf5c7144085987d4a94c30be46ac2bb255fdd597db8ece798a82"`
Oct 13 03:24:14.564 INFO kablam! usermod: no changes
Oct 13 03:24:14.687 INFO kablam!     Checking meatball v0.1.0 (/source)
Oct 13 03:24:16.712 INFO kablam! warning: unused import: `builtins::Builtin`
Oct 13 03:24:16.712 INFO kablam!  --> src/program.rs:5:5
Oct 13 03:24:16.712 INFO kablam!   |
Oct 13 03:24:16.712 INFO kablam! 5 | use builtins::Builtin;
Oct 13 03:24:16.712 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Oct 13 03:24:16.712 INFO kablam!   |
Oct 13 03:24:16.712 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:24:16.712 INFO kablam! 
Oct 13 03:24:16.944 INFO kablam! warning: unused import: `builtins::Builtin`
Oct 13 03:24:16.944 INFO kablam!  --> src/program.rs:5:5
Oct 13 03:24:16.944 INFO kablam!   |
Oct 13 03:24:16.944 INFO kablam! 5 | use builtins::Builtin;
Oct 13 03:24:16.944 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Oct 13 03:24:16.944 INFO kablam!   |
Oct 13 03:24:16.944 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:24:16.944 INFO kablam! 
Oct 13 03:24:17.204 INFO kablam! warning: function is never used: `zero_expr`
Oct 13 03:24:17.204 INFO kablam!   --> src/parse.rs:46:1
Oct 13 03:24:17.204 INFO kablam!    |
Oct 13 03:24:17.204 INFO kablam! 46 | pub fn zero_expr() -> Ast {
Oct 13 03:24:17.204 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.204 INFO kablam!    |
Oct 13 03:24:17.204 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:24:17.204 INFO kablam! 
Oct 13 03:24:17.206 INFO kablam! warning: variant is never constructed: `Cond`
Oct 13 03:24:17.206 INFO kablam!   --> src/program.rs:30:5
Oct 13 03:24:17.206 INFO kablam!    |
Oct 13 03:24:17.206 INFO kablam! 30 |     Cond(Vec<(Expr, Expr)>),
Oct 13 03:24:17.206 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.212 INFO kablam! 
Oct 13 03:24:17.212 INFO kablam! warning: variant is never constructed: `Func`
Oct 13 03:24:17.212 INFO kablam!   --> src/program.rs:31:5
Oct 13 03:24:17.212 INFO kablam!    |
Oct 13 03:24:17.212 INFO kablam! 31 |     Func(Box<Func>),
Oct 13 03:24:17.212 INFO kablam!    |     ^^^^^^^^^^^^^^^
Oct 13 03:24:17.212 INFO kablam! 
Oct 13 03:24:17.212 INFO kablam! warning: function is never used: `ast2var`
Oct 13 03:24:17.212 INFO kablam!   --> src/program.rs:80:1
Oct 13 03:24:17.212 INFO kablam!    |
Oct 13 03:24:17.212 INFO kablam! 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
Oct 13 03:24:17.212 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.212 INFO kablam! 
Oct 13 03:24:17.480 INFO kablam! warning: function is never used: `zero_expr`
Oct 13 03:24:17.480 INFO kablam!   --> src/parse.rs:46:1
Oct 13 03:24:17.480 INFO kablam!    |
Oct 13 03:24:17.480 INFO kablam! 46 | pub fn zero_expr() -> Ast {
Oct 13 03:24:17.480 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.480 INFO kablam!    |
Oct 13 03:24:17.480 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:24:17.480 INFO kablam! 
Oct 13 03:24:17.480 INFO kablam! warning: variant is never constructed: `Cond`
Oct 13 03:24:17.480 INFO kablam!   --> src/program.rs:30:5
Oct 13 03:24:17.480 INFO kablam!    |
Oct 13 03:24:17.480 INFO kablam! 30 |     Cond(Vec<(Expr, Expr)>),
Oct 13 03:24:17.480 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.480 INFO kablam! 
Oct 13 03:24:17.480 INFO kablam! warning: variant is never constructed: `Func`
Oct 13 03:24:17.480 INFO kablam!   --> src/program.rs:31:5
Oct 13 03:24:17.480 INFO kablam!    |
Oct 13 03:24:17.481 INFO kablam! 31 |     Func(Box<Func>),
Oct 13 03:24:17.481 INFO kablam!    |     ^^^^^^^^^^^^^^^
Oct 13 03:24:17.481 INFO kablam! 
Oct 13 03:24:17.481 INFO kablam! warning: function is never used: `ast2var`
Oct 13 03:24:17.481 INFO kablam!   --> src/program.rs:80:1
Oct 13 03:24:17.481 INFO kablam!    |
Oct 13 03:24:17.481 INFO kablam! 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
Oct 13 03:24:17.481 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:24:17.481 INFO kablam! 
Oct 13 03:24:17.564 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
Oct 13 03:24:17.576 INFO kablam! su: No module specific data is present
Oct 13 03:24:18.397 INFO running `"docker" "rm" "-f" "6e30ff68baefdf5c7144085987d4a94c30be46ac2bb255fdd597db8ece798a82"`
Oct 13 03:24:18.664 INFO blam! 6e30ff68baefdf5c7144085987d4a94c30be46ac2bb255fdd597db8ece798a82