Nov 30 09:33:45.589 INFO checking NatTuck/meatball against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 09:33:45.589 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 09:33:45.924 INFO [stdout] 48a10f35391fac02bc229de63fa18ac66ea2f4447e3de61cdfd8dd5a0f45d49a
Nov 30 09:33:45.926 INFO running `"docker" "start" "-a" "48a10f35391fac02bc229de63fa18ac66ea2f4447e3de61cdfd8dd5a0f45d49a"`
Nov 30 09:33:46.891 INFO [stderr] usermod: no changes
Nov 30 09:33:47.012 INFO [stderr]     Checking meatball v0.1.0 (/source)
Nov 30 09:33:49.407 INFO [stderr] warning: unused import: `builtins::Builtin`
Nov 30 09:33:49.407 INFO [stderr]  --> src/program.rs:5:5
Nov 30 09:33:49.407 INFO [stderr]   |
Nov 30 09:33:49.407 INFO [stderr] 5 | use builtins::Builtin;
Nov 30 09:33:49.407 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 30 09:33:49.407 INFO [stderr]   |
Nov 30 09:33:49.407 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 09:33:49.407 INFO [stderr] 
Nov 30 09:33:49.586 INFO [stderr] warning: unused import: `builtins::Builtin`
Nov 30 09:33:49.586 INFO [stderr]  --> src/program.rs:5:5
Nov 30 09:33:49.586 INFO [stderr]   |
Nov 30 09:33:49.586 INFO [stderr] 5 | use builtins::Builtin;
Nov 30 09:33:49.586 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 30 09:33:49.600 INFO [stderr]   |
Nov 30 09:33:49.601 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 09:33:49.601 INFO [stderr] 
Nov 30 09:33:50.345 INFO [stderr] warning: function is never used: `zero_expr`
Nov 30 09:33:50.346 INFO [stderr]   --> src/parse.rs:46:1
Nov 30 09:33:50.346 INFO [stderr]    |
Nov 30 09:33:50.346 INFO [stderr] 46 | pub fn zero_expr() -> Ast {
Nov 30 09:33:50.346 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.346 INFO [stderr]    |
Nov 30 09:33:50.346 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 09:33:50.346 INFO [stderr] 
Nov 30 09:33:50.346 INFO [stderr] warning: variant is never constructed: `Cond`
Nov 30 09:33:50.346 INFO [stderr]   --> src/program.rs:30:5
Nov 30 09:33:50.346 INFO [stderr]    |
Nov 30 09:33:50.346 INFO [stderr] 30 |     Cond(Vec<(Expr, Expr)>),
Nov 30 09:33:50.346 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.346 INFO [stderr] 
Nov 30 09:33:50.346 INFO [stderr] warning: variant is never constructed: `Func`
Nov 30 09:33:50.346 INFO [stderr]   --> src/program.rs:31:5
Nov 30 09:33:50.346 INFO [stderr]    |
Nov 30 09:33:50.346 INFO [stderr] 31 |     Func(Box<Func>),
Nov 30 09:33:50.346 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 09:33:50.346 INFO [stderr] 
Nov 30 09:33:50.346 INFO [stderr] warning: function is never used: `ast2var`
Nov 30 09:33:50.346 INFO [stderr]   --> src/program.rs:80:1
Nov 30 09:33:50.346 INFO [stderr]    |
Nov 30 09:33:50.346 INFO [stderr] 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
Nov 30 09:33:50.346 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.346 INFO [stderr] 
Nov 30 09:33:50.388 INFO [stderr] warning: function is never used: `zero_expr`
Nov 30 09:33:50.388 INFO [stderr]   --> src/parse.rs:46:1
Nov 30 09:33:50.388 INFO [stderr]    |
Nov 30 09:33:50.388 INFO [stderr] 46 | pub fn zero_expr() -> Ast {
Nov 30 09:33:50.388 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.396 INFO [stderr]    |
Nov 30 09:33:50.396 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 09:33:50.396 INFO [stderr] 
Nov 30 09:33:50.397 INFO [stderr] warning: variant is never constructed: `Cond`
Nov 30 09:33:50.397 INFO [stderr]   --> src/program.rs:30:5
Nov 30 09:33:50.397 INFO [stderr]    |
Nov 30 09:33:50.397 INFO [stderr] 30 |     Cond(Vec<(Expr, Expr)>),
Nov 30 09:33:50.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.397 INFO [stderr] 
Nov 30 09:33:50.397 INFO [stderr] warning: variant is never constructed: `Func`
Nov 30 09:33:50.397 INFO [stderr]   --> src/program.rs:31:5
Nov 30 09:33:50.397 INFO [stderr]    |
Nov 30 09:33:50.398 INFO [stderr] 31 |     Func(Box<Func>),
Nov 30 09:33:50.398 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 09:33:50.398 INFO [stderr] 
Nov 30 09:33:50.402 INFO [stderr] warning: function is never used: `ast2var`
Nov 30 09:33:50.402 INFO [stderr]   --> src/program.rs:80:1
Nov 30 09:33:50.402 INFO [stderr]    |
Nov 30 09:33:50.402 INFO [stderr] 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
Nov 30 09:33:50.402 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:33:50.402 INFO [stderr] 
Nov 30 09:33:50.434 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
Nov 30 09:33:50.439 INFO [stderr] su: No module specific data is present
Nov 30 09:33:51.356 INFO running `"docker" "inspect" "48a10f35391fac02bc229de63fa18ac66ea2f4447e3de61cdfd8dd5a0f45d49a"`
Nov 30 09:33:51.638 INFO running `"docker" "rm" "-f" "48a10f35391fac02bc229de63fa18ac66ea2f4447e3de61cdfd8dd5a0f45d49a"`
Nov 30 09:33:51.892 INFO [stdout] 48a10f35391fac02bc229de63fa18ac66ea2f4447e3de61cdfd8dd5a0f45d49a