[INFO] crate oftlisp-anf 0.1.3 is already in cache
[INFO] extracting crate oftlisp-anf 0.1.3 into work/ex/clippy-test-run/sources/stable/reg/oftlisp-anf/0.1.3
[INFO] extracting crate oftlisp-anf 0.1.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/oftlisp-anf/0.1.3
[INFO] validating manifest of oftlisp-anf-0.1.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of oftlisp-anf-0.1.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing oftlisp-anf-0.1.3
[INFO] finished frobbing oftlisp-anf-0.1.3
[INFO] frobbed toml for oftlisp-anf-0.1.3 written to work/ex/clippy-test-run/sources/stable/reg/oftlisp-anf/0.1.3/Cargo.toml
[INFO] started frobbing oftlisp-anf-0.1.3
[INFO] finished frobbing oftlisp-anf-0.1.3
[INFO] frobbed toml for oftlisp-anf-0.1.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/oftlisp-anf/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting oftlisp-anf-0.1.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/oftlisp-anf/0.1.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 213afc4a44876c64fbbe1b24c5df990934c0cf8ca3e800a835b97053cb899442
[INFO] running `"docker" "start" "-a" "213afc4a44876c64fbbe1b24c5df990934c0cf8ca3e800a835b97053cb899442"`
[INFO] [stderr]     Checking gc v0.3.2
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]    Compiling gc_derive v0.3.1
[INFO] [stderr]     Checking oftlisp v0.1.3
[INFO] [stderr]     Checking oftlisp-anf v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]   --> src/compile.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | const ANFIR_VERSION: u32 = 0x001_00_000;
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: consider: `0x0010_0000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::inconsistent_digit_grouping)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                           Ok(Gc::new(Value::Byte(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:132:50
[INFO] [stderr]     |
[INFO] [stderr] 132 |                           Ok(Gc::new(Value::Fixnum(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                           Ok(Gc::new(Value::Byte(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/primitives.rs:391:13
[INFO] [stderr]     |
[INFO] [stderr] 391 |             return Err(RuntimeError::ObjectDataOutOfBounds(i, val.clone()));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(RuntimeError::ObjectDataOutOfBounds(i, val.clone()))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]   --> src/compile.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | const ANFIR_VERSION: u32 = 0x001_00_000;
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: consider: `0x0010_0000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::inconsistent_digit_grouping)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                           Ok(Gc::new(Value::Byte(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:132:50
[INFO] [stderr]     |
[INFO] [stderr] 132 |                           Ok(Gc::new(Value::Fixnum(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/primitives.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                           Ok(Gc::new(Value::Byte(($fn)(a, b), Default::default())))
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 | / define_ops! {
[INFO] [stderr] 142 | |     (op_add, "+/2") = |a, b| a + b;
[INFO] [stderr] 143 | |     (op_sub, "-/2") = |a, b| a - b;
[INFO] [stderr] 144 | |     (op_mul, "*/2") = |a, b| a * b;
[INFO] [stderr] 145 | |     (op_div, "//2") = |a, b| a / b;
[INFO] [stderr] 146 | |     (op_mod, "mod/2") = |a, b| a % b;
[INFO] [stderr] 147 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/primitives.rs:391:13
[INFO] [stderr]     |
[INFO] [stderr] 391 |             return Err(RuntimeError::ObjectDataOutOfBounds(i, val.clone()));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(RuntimeError::ObjectDataOutOfBounds(i, val.clone()))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/convert.rs:46:45
[INFO] [stderr]    |
[INFO] [stderr] 46 |             AstExpr::Progn(ref exprs) => if exprs.len() == 0 {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `exprs.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:167:37
[INFO] [stderr]     |
[INFO] [stderr] 167 |         Ok(Gc::new(Value::Fixnum(n, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 167 |         Ok(Gc::new(Value::Fixnum(n, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:175:37
[INFO] [stderr]     |
[INFO] [stderr] 175 |         Ok(Gc::new(Value::Fixnum(n, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 175 |         Ok(Gc::new(Value::Fixnum(n, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:182:59
[INFO] [stderr]     |
[INFO] [stderr] 182 |         Ok(Gc::new(Value::AtomicWord(AtomicIsize::new(n), Default::default())))
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 182 |         Ok(Gc::new(Value::AtomicWord(AtomicIsize::new(n), ())))
[INFO] [stderr]     |                                                           ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:191:31
[INFO] [stderr]     |
[INFO] [stderr] 191 |         Ok(Gc::new(Value::Nil(Default::default())))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 191 |         Ok(Gc::new(Value::Nil(())))
[INFO] [stderr]     |                               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             Value::Byte(n as u8, Default::default())
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 199 |             Value::Byte(n as u8, ())
[INFO] [stderr]     |                                  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:201:24
[INFO] [stderr]     |
[INFO] [stderr] 201 |             Value::Nil(Default::default())
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 201 |             Value::Nil(())
[INFO] [stderr]     |                        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/convert.rs:46:45
[INFO] [stderr]    |
[INFO] [stderr] 46 |             AstExpr::Progn(ref exprs) => if exprs.len() == 0 {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `exprs.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Ok(Gc::new(Value::Bytes(bs, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Ok(Gc::new(Value::Bytes(bs, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:241:48
[INFO] [stderr]     |
[INFO] [stderr] 241 |         Ok(Gc::new(Value::String(Gc::new(buf), Default::default())))
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 241 |         Ok(Gc::new(Value::String(Gc::new(buf), ())))
[INFO] [stderr]     |                                                ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:247:38
[INFO] [stderr]     |
[INFO] [stderr] 247 |         Ok(Gc::new(Value::Cons(h, t, Default::default())))
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 247 |         Ok(Gc::new(Value::Cons(h, t, ())))
[INFO] [stderr]     |                                      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:274:46
[INFO] [stderr]     |
[INFO] [stderr] 274 |         Ok(Gc::new(Value::Fixnum(n as isize, Default::default())))
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 274 |         Ok(Gc::new(Value::Fixnum(n as isize, ())))
[INFO] [stderr]     |                                              ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:280:49
[INFO] [stderr]     |
[INFO] [stderr] 280 |         Ok(Gc::new(Value::Symbol(make_gensym(), Default::default())))
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 280 |         Ok(Gc::new(Value::Symbol(make_gensym(), ())))
[INFO] [stderr]     |                                                 ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:167:37
[INFO] [stderr]     |
[INFO] [stderr] 167 |         Ok(Gc::new(Value::Fixnum(n, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 167 |         Ok(Gc::new(Value::Fixnum(n, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:175:37
[INFO] [stderr]     |
[INFO] [stderr] 175 |         Ok(Gc::new(Value::Fixnum(n, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 175 |         Ok(Gc::new(Value::Fixnum(n, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:182:59
[INFO] [stderr]     |
[INFO] [stderr] 182 |         Ok(Gc::new(Value::AtomicWord(AtomicIsize::new(n), Default::default())))
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 182 |         Ok(Gc::new(Value::AtomicWord(AtomicIsize::new(n), ())))
[INFO] [stderr]     |                                                           ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:191:31
[INFO] [stderr]     |
[INFO] [stderr] 191 |         Ok(Gc::new(Value::Nil(Default::default())))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 191 |         Ok(Gc::new(Value::Nil(())))
[INFO] [stderr]     |                               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             Value::Byte(n as u8, Default::default())
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 199 |             Value::Byte(n as u8, ())
[INFO] [stderr]     |                                  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:201:24
[INFO] [stderr]     |
[INFO] [stderr] 201 |             Value::Nil(Default::default())
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 201 |             Value::Nil(())
[INFO] [stderr]     |                        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Ok(Gc::new(Value::Bytes(bs, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Ok(Gc::new(Value::Bytes(bs, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:367:35
[INFO] [stderr]     |
[INFO] [stderr] 367 |         Ok(Value::list(v.clone(), Default::default()))
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 367 |         Ok(Value::list(v.clone(), ()))
[INFO] [stderr]     |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:374:41
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let v = vec![Gc::new(Value::Nil(Default::default())); l];
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let v = vec![Gc::new(Value::Nil(())); l];
[INFO] [stderr]     |                                         ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:375:37
[INFO] [stderr]     |
[INFO] [stderr] 375 |         Ok(Gc::new(Value::Vector(v, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 375 |         Ok(Gc::new(Value::Vector(v, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:382:55
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Gc::new(Value::Fixnum(data.len() as isize, Default::default())))
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Gc::new(Value::Fixnum(data.len() as isize, ())))
[INFO] [stderr]     |                                                       ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:241:48
[INFO] [stderr]     |
[INFO] [stderr] 241 |         Ok(Gc::new(Value::String(Gc::new(buf), Default::default())))
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 241 |         Ok(Gc::new(Value::String(Gc::new(buf), ())))
[INFO] [stderr]     |                                                ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:247:38
[INFO] [stderr]     |
[INFO] [stderr] 247 |         Ok(Gc::new(Value::Cons(h, t, Default::default())))
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 247 |         Ok(Gc::new(Value::Cons(h, t, ())))
[INFO] [stderr]     |                                      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:274:46
[INFO] [stderr]     |
[INFO] [stderr] 274 |         Ok(Gc::new(Value::Fixnum(n as isize, Default::default())))
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 274 |         Ok(Gc::new(Value::Fixnum(n as isize, ())))
[INFO] [stderr]     |                                              ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:426:54
[INFO] [stderr]     |
[INFO] [stderr] 426 |         Ok(Gc::new(Value::Object(vtbl, data.clone(), Default::default())))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 426 |         Ok(Gc::new(Value::Object(vtbl, data.clone(), ())))
[INFO] [stderr]     |                                                      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:280:49
[INFO] [stderr]     |
[INFO] [stderr] 280 |         Ok(Gc::new(Value::Symbol(make_gensym(), Default::default())))
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:435:44
[INFO] [stderr]     |
[INFO] [stderr] 435 |         Ok(Gc::new(Value::Cons(vtbl, data, Default::default())))
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 435 |         Ok(Gc::new(Value::Cons(vtbl, data, ())))
[INFO] [stderr]     |                                            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:461:37
[INFO] [stderr]     |
[INFO] [stderr] 461 |         Ok(Gc::new(Value::String(s, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 461 |         Ok(Gc::new(Value::String(s, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:468:58
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Ok(Gc::new(Value::String(Gc::new(s.to_string()), Default::default())))
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Ok(Gc::new(Value::String(Gc::new(s.to_string()), ())))
[INFO] [stderr]     |                                                          ^^
[INFO] [stderr] 
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 280 |         Ok(Gc::new(Value::Symbol(make_gensym(), ())))
[INFO] [stderr]     |                                                 ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:476:46
[INFO] [stderr]     |
[INFO] [stderr] 476 |             Value::Symbol(s.as_str().into(), Default::default())
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 476 |             Value::Symbol(s.as_str().into(), ())
[INFO] [stderr]     |                                              ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:478:24
[INFO] [stderr]     |
[INFO] [stderr] 478 |             Value::Nil(Default::default())
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 478 |             Value::Nil(())
[INFO] [stderr]     |                        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:502:31
[INFO] [stderr]     |
[INFO] [stderr] 502 |         Ok(Gc::new(Value::Nil(Default::default())))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 502 |         Ok(Gc::new(Value::Nil(())))
[INFO] [stderr]     |                               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:367:35
[INFO] [stderr]     |
[INFO] [stderr] 367 |         Ok(Value::list(v.clone(), Default::default()))
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 367 |         Ok(Value::list(v.clone(), ()))
[INFO] [stderr]     |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:374:41
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let v = vec![Gc::new(Value::Nil(Default::default())); l];
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let v = vec![Gc::new(Value::Nil(())); l];
[INFO] [stderr]     |                                         ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:375:37
[INFO] [stderr]     |
[INFO] [stderr] 375 |         Ok(Gc::new(Value::Vector(v, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 375 |         Ok(Gc::new(Value::Vector(v, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:382:55
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Gc::new(Value::Fixnum(data.len() as isize, Default::default())))
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Gc::new(Value::Fixnum(data.len() as isize, ())))
[INFO] [stderr]     |                                                       ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:426:54
[INFO] [stderr]     |
[INFO] [stderr] 426 |         Ok(Gc::new(Value::Object(vtbl, data.clone(), Default::default())))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 426 |         Ok(Gc::new(Value::Object(vtbl, data.clone(), ())))
[INFO] [stderr]     |                                                      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:435:44
[INFO] [stderr]     |
[INFO] [stderr] 435 |         Ok(Gc::new(Value::Cons(vtbl, data, Default::default())))
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 435 |         Ok(Gc::new(Value::Cons(vtbl, data, ())))
[INFO] [stderr]     |                                            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:461:37
[INFO] [stderr]     |
[INFO] [stderr] 461 |         Ok(Gc::new(Value::String(s, Default::default())))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 461 |         Ok(Gc::new(Value::String(s, ())))
[INFO] [stderr]     |                                     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:468:58
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Ok(Gc::new(Value::String(Gc::new(s.to_string()), Default::default())))
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Ok(Gc::new(Value::String(Gc::new(s.to_string()), ())))
[INFO] [stderr]     |                                                          ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:476:46
[INFO] [stderr]     |
[INFO] [stderr] 476 |             Value::Symbol(s.as_str().into(), Default::default())
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 476 |             Value::Symbol(s.as_str().into(), ())
[INFO] [stderr]     |                                              ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:478:24
[INFO] [stderr]     |
[INFO] [stderr] 478 |             Value::Nil(Default::default())
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 478 |             Value::Nil(())
[INFO] [stderr]     |                        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/primitives.rs:502:31
[INFO] [stderr]     |
[INFO] [stderr] 502 |         Ok(Gc::new(Value::Nil(Default::default())))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead
[INFO] [stderr]     |
[INFO] [stderr] 502 |         Ok(Gc::new(Value::Nil(())))
[INFO] [stderr]     |                               ^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.50s
[INFO] running `"docker" "inspect" "213afc4a44876c64fbbe1b24c5df990934c0cf8ca3e800a835b97053cb899442"`
[INFO] running `"docker" "rm" "-f" "213afc4a44876c64fbbe1b24c5df990934c0cf8ca3e800a835b97053cb899442"`
[INFO] [stdout] 213afc4a44876c64fbbe1b24c5df990934c0cf8ca3e800a835b97053cb899442