[INFO] updating cached repository NatTuck/meatball
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NatTuck/meatball
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NatTuck/meatball" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/NatTuck/meatball"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/NatTuck/meatball'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NatTuck/meatball" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/NatTuck/meatball"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/NatTuck/meatball'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14c81418bb1aaeea96385cbe7bc05cd465dfce2f
[INFO] sha for GitHub repo NatTuck/meatball: 14c81418bb1aaeea96385cbe7bc05cd465dfce2f
[INFO] validating manifest of NatTuck/meatball on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of NatTuck/meatball on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing NatTuck/meatball
[INFO] finished frobbing NatTuck/meatball
[INFO] frobbed toml for NatTuck/meatball written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/NatTuck/meatball/Cargo.toml
[INFO] started frobbing NatTuck/meatball
[INFO] finished frobbing NatTuck/meatball
[INFO] frobbed toml for NatTuck/meatball written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/NatTuck/meatball/Cargo.toml
[INFO] crate NatTuck/meatball already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking NatTuck/meatball against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-4/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/NatTuck/meatball:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a4a1c667150649e331de058bdecd3ca1e88792292b5ad440d72329f53ab078f2
[INFO] running `"docker" "start" "-a" "a4a1c667150649e331de058bdecd3ca1e88792292b5ad440d72329f53ab078f2"`
[INFO] [stderr]     Checking meatball v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `builtins::Builtin`
[INFO] [stderr]  --> src/program.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use builtins::Builtin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `builtins::Builtin`
[INFO] [stderr]  --> src/program.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use builtins::Builtin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zero_expr`
[INFO] [stderr]   --> src/parse.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn zero_expr() -> Ast {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cond`
[INFO] [stderr]   --> src/program.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Cond(Vec<(Expr, Expr)>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Func`
[INFO] [stderr]   --> src/program.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Func(Box<Func>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ast2var`
[INFO] [stderr]   --> src/program.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zero_expr`
[INFO] [stderr]   --> src/parse.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn zero_expr() -> Ast {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cond`
[INFO] [stderr]   --> src/program.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Cond(Vec<(Expr, Expr)>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Func`
[INFO] [stderr]   --> src/program.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Func(Box<Func>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ast2var`
[INFO] [stderr]   --> src/program.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn ast2var(ast: &[Ast]) -> Result<(String, Expr)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "a4a1c667150649e331de058bdecd3ca1e88792292b5ad440d72329f53ab078f2"`
[INFO] running `"docker" "rm" "-f" "a4a1c667150649e331de058bdecd3ca1e88792292b5ad440d72329f53ab078f2"`
[INFO] [stdout] a4a1c667150649e331de058bdecd3ca1e88792292b5ad440d72329f53ab078f2