[INFO] updating cached repository https://github.com/samdoiron/Lithium
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f3910f8a60430848c94c9c4265092ccb04d5223
[INFO] checking samdoiron/Lithium against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2FLithium" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samdoiron/Lithium on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/samdoiron/Lithium
[INFO] finished tweaking git repo https://github.com/samdoiron/Lithium
[INFO] tweaked toml for git repo https://github.com/samdoiron/Lithium written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/samdoiron/Lithium already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e87c7efee487e1c64d877a442daebe8b87300422dba1481db9a2168f4d27a4c2
[INFO] running `"docker" "start" "-a" "e87c7efee487e1c64d877a442daebe8b87300422dba1481db9a2168f4d27a4c2"`
[INFO] [stderr]     Checking lithium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `:`, `@`, or `|`, found `,`
[INFO] [stderr]   --> src/object.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                        ^ expected one of `:`, `@`, or `|`
[INFO] [stderr]    |
[INFO] [stderr]    = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stderr] help: if this was a parameter name, give it a type
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, ObjectRef: TypeName, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: if this is a type, explicitly ignore the parameter name
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, _: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `:`, `@`, or `|`, found `,`
[INFO] [stderr]   --> src/object.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                        ^ expected one of `:`, `@`, or `|`
[INFO] [stderr]    |
[INFO] [stderr]    = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stderr] help: if this was a parameter name, give it a type
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, ObjectRef: TypeName, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: if this is a type, explicitly ignore the parameter name
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn get_handler(&mut self, _: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `NormalObject`
[INFO] [stderr]    --> src/eval.rs:185:45
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let scope = ObjectRef::new(Box::new(NormalObject::extending(parent_scope)));
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ use of undeclared type or module `NormalObject`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `target` in this scope
[INFO] [stderr]   --> src/object.rs:45:41
[INFO] [stderr]    |
[INFO] [stderr] 45 |             None => self.prototype.send(target, message)
[INFO] [stderr]    |                                         ^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn is_message_valid(&self, message: &EvaluatedMessage) -> bool {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `eval_block` in this scope
[INFO] [stderr]   --> src/eval.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         eval_block(pool, self.parent_scope, &self.body)
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `pool` in this scope
[INFO] [stderr]   --> src/eval.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |         eval_block(pool, self.parent_scope, &self.body)
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `eval_block` in this scope
[INFO] [stderr]   --> src/eval.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         eval_block(context, &self.body)
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:44:76
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn send(&mut self, pool: &mut ObjectPool, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0574]: expected struct, variant or union type, found enum `ObjectRef`
[INFO] [stderr]   --> src/eval.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         ObjectRef{
[INFO] [stderr]    |         ^^^^^^^^^ not a struct, variant or union type
[INFO] [stderr] 
[INFO] [stderr] error[E0574]: expected struct, variant or union type, found enum `ObjectRef`
[INFO] [stderr]   --> src/eval.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         ObjectRef{
[INFO] [stderr]    |         ^^^^^^^^^ not a struct, variant or union type
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:73:52
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn send(&mut self, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:107:53
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn send(&mut self, target: ObjectRef, _message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:138:52
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:203:72
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn eval_message(&mut self, scope: ObjectRef, message: &Message) -> EvaluatedMessage {
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |         EvaluatedMessage { name: message.name.clone(), arguments: bindings }
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:216:39
[INFO] [stderr]     |
[INFO] [stderr] 216 |                         let message = EvaluatedMessage{name: ident.to_string(), arguments: Vec::new() };
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:34:24
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn get_handler(target: Object) {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |     special_objects: Vec<Box<Object>>
[INFO] [stderr]    |                              ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn new(object: Box<Object>) -> ObjectRef {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval.rs:64:38
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn new_with_metadata(object: Box<Object>, metadata: Metadata) -> ObjectRef {
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `NormalObject`
[INFO] [stderr]    --> src/eval.rs:185:45
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let scope = ObjectRef::new(Box::new(NormalObject::extending(parent_scope)));
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ use of undeclared type or module `NormalObject`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `target` in this scope
[INFO] [stderr]   --> src/object.rs:45:41
[INFO] [stderr]    |
[INFO] [stderr] 45 |             None => self.prototype.send(target, message)
[INFO] [stderr]    |                                         ^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn is_message_valid(&self, message: &EvaluatedMessage) -> bool {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `eval_block` in this scope
[INFO] [stderr]   --> src/eval.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         eval_block(pool, self.parent_scope, &self.body)
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `pool` in this scope
[INFO] [stderr]   --> src/eval.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |         eval_block(pool, self.parent_scope, &self.body)
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `eval_block` in this scope
[INFO] [stderr]   --> src/eval.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         eval_block(context, &self.body)
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:44:76
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn send(&mut self, pool: &mut ObjectPool, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0574]: expected struct, variant or union type, found enum `ObjectRef`
[INFO] [stderr]   --> src/eval.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         ObjectRef{
[INFO] [stderr]    |         ^^^^^^^^^ not a struct, variant or union type
[INFO] [stderr] 
[INFO] [stderr] error[E0574]: expected struct, variant or union type, found enum `ObjectRef`
[INFO] [stderr]   --> src/eval.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         ObjectRef{
[INFO] [stderr]    |         ^^^^^^^^^ not a struct, variant or union type
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:73:52
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]   --> src/eval.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn send(&mut self, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use object::EvaluatedMessage;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:107:53
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn send(&mut self, target: ObjectRef, _message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:138:52
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:203:72
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn eval_message(&mut self, scope: ObjectRef, message: &Message) -> EvaluatedMessage {
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |         EvaluatedMessage { name: message.name.clone(), arguments: bindings }
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `EvaluatedMessage` in this scope
[INFO] [stderr]    --> src/eval.rs:216:39
[INFO] [stderr]     |
[INFO] [stderr] 216 |                         let message = EvaluatedMessage{name: ident.to_string(), arguments: Vec::new() };
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use object::EvaluatedMessage;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:34:24
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn get_handler(target: Object) {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |     special_objects: Vec<Box<Object>>
[INFO] [stderr]    |                              ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn new(object: Box<Object>) -> ObjectRef {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval.rs:64:38
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn new_with_metadata(object: Box<Object>, metadata: Metadata) -> ObjectRef {
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]   --> src/eval.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/object.rs:5:13
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]   --> src/eval.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn send(&mut self, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/object.rs:5:13
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]    --> src/eval.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn send(&mut self, target: ObjectRef, _message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:13
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]    --> src/eval.rs:138:13
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:13
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]   --> src/eval.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/object.rs:5:13
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]   --> src/eval.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn send(&mut self, _target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/object.rs:5:13
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]    --> src/eval.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn send(&mut self, target: ObjectRef, _message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:13
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0050]: method `send` has 3 parameters but the declaration in trait `object::Object::send` has 4
[INFO] [stderr]    --> src/eval.rs:138:13
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send(&mut self, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 parameters, found 3
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:13
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |             ------------------------------------------------------------------------------ trait requires 4 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new` found for struct `eval::Program` in the current scope
[INFO] [stderr]    --> src/main.rs:16:14
[INFO] [stderr]     |
[INFO] [stderr] 16  |     Program::new().eval(parsed);
[INFO] [stderr]     |              ^^^ function or associated item not found in `eval::Program`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/eval.rs:173:1
[INFO] [stderr]     |
[INFO] [stderr] 173 | pub struct Program {
[INFO] [stderr]     | ------------------ function or associated item `new` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0560]: struct `object::NormalObject` has no field named `methods`
[INFO] [stderr]   --> src/object.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |             methods: HashMap::new(),
[INFO] [stderr]    |             ^^^^^^^ `object::NormalObject` does not have this field
[INFO] [stderr]    |
[INFO] [stderr]    = note: available fields are: `prototype`, `properties`, `metadata`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `(dyn object::Object + 'static)` cannot be known at compilation time
[INFO] [stderr]   --> src/object.rs:34:16
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn get_handler(target: Object) {
[INFO] [stderr]    |                ^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `(dyn object::Object + 'static)`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 43 |                 defined_object.send(clone, message)
[INFO] [stderr]    |                                ^^^^ -----  ------- supplied 2 arguments
[INFO] [stderr]    |                                |
[INFO] [stderr]    |                                expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:45:36
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 45 |             None => self.prototype.send(target, message)
[INFO] [stderr]    |                                    ^^^^ ------  ------- supplied 2 arguments
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `send` found for struct `object::NormalObject` in the current scope
[INFO] [stderr]   --> src/object.rs:83:68
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct NormalObject {
[INFO] [stderr]    | ----------------------- method `send` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 83 |             ObjectRef::Normal(index) => self.normal_objects[index].send(self, message),
[INFO] [stderr]    |                                                                    ^^^^ method not found in `object::NormalObject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr] note: `object::Object` defines an item `send`, perhaps you need to implement it
[INFO] [stderr]   --> src/object.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub trait Object: Debug {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:84:70
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 84 |             ObjectRef::Special(index) => self.special_objects[index].send(self, message)
[INFO] [stderr]    |                                                                      ^^^^ ----  ------- supplied 2 arguments
[INFO] [stderr]    |                                                                      |
[INFO] [stderr]    |                                                                      expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/object.rs:88:83
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn define(&mut self, reference: ObjectRef, name: String, value: ObjectRef) -> ObjectRef {
[INFO] [stderr]    |        ------                                                                     ^^^^^^^^^ expected enum `object::ObjectRef`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new` found for struct `eval::Program` in the current scope
[INFO] [stderr]    --> src/main.rs:16:14
[INFO] [stderr]     |
[INFO] [stderr] 16  |     Program::new().eval(parsed);
[INFO] [stderr]     |              ^^^ function or associated item not found in `eval::Program`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/eval.rs:173:1
[INFO] [stderr]     |
[INFO] [stderr] 173 | pub struct Program {
[INFO] [stderr]     | ------------------ function or associated item `new` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0560]: struct `object::NormalObject` has no field named `methods`
[INFO] [stderr]   --> src/object.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |             methods: HashMap::new(),
[INFO] [stderr]    |             ^^^^^^^ `object::NormalObject` does not have this field
[INFO] [stderr]    |
[INFO] [stderr]    = note: available fields are: `prototype`, `properties`, `metadata`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `(dyn object::Object + 'static)` cannot be known at compilation time
[INFO] [stderr]   --> src/object.rs:34:16
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn get_handler(target: Object) {
[INFO] [stderr]    |                ^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `(dyn object::Object + 'static)`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 43 |                 defined_object.send(clone, message)
[INFO] [stderr]    |                                ^^^^ -----  ------- supplied 2 arguments
[INFO] [stderr]    |                                |
[INFO] [stderr]    |                                expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:45:36
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 45 |             None => self.prototype.send(target, message)
[INFO] [stderr]    |                                    ^^^^ ------  ------- supplied 2 arguments
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `send` found for struct `object::NormalObject` in the current scope
[INFO] [stderr]   --> src/object.rs:83:68
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct NormalObject {
[INFO] [stderr]    | ----------------------- method `send` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 83 |             ObjectRef::Normal(index) => self.normal_objects[index].send(self, message),
[INFO] [stderr]    |                                                                    ^^^^ method not found in `object::NormalObject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr] note: `object::Object` defines an item `send`, perhaps you need to implement it
[INFO] [stderr]   --> src/object.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub trait Object: Debug {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> src/object.rs:84:70
[INFO] [stderr]    |
[INFO] [stderr] 5  |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]    |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 84 |             ObjectRef::Special(index) => self.special_objects[index].send(self, message)
[INFO] [stderr]    |                                                                      ^^^^ ----  ------- supplied 2 arguments
[INFO] [stderr]    |                                                                      |
[INFO] [stderr]    |                                                                      expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/object.rs:88:83
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn define(&mut self, reference: ObjectRef, name: String, value: ObjectRef) -> ObjectRef {
[INFO] [stderr]    |        ------                                                                     ^^^^^^^^^ expected enum `object::ObjectRef`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/eval.rs:46:69
[INFO] [stderr]    |
[INFO] [stderr] 46 |             ref m if m == "call" => self.call_with_captured_context(pool),
[INFO] [stderr]    |                                                                     ^^^^ expected struct `eval::Program`, found struct `object::ObjectPool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut eval::Program`
[INFO] [stderr]               found mutable reference `&mut object::ObjectPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `object` on type `&mut object::ObjectRef`
[INFO] [stderr]   --> src/eval.rs:74:14
[INFO] [stderr]    |
[INFO] [stderr] 74 |         self.object.borrow_mut().send(target, message)
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `object` on type `&mut object::ObjectRef`
[INFO] [stderr]   --> src/eval.rs:78:14
[INFO] [stderr]    |
[INFO] [stderr] 78 |         self.object.borrow_mut().define(name, value)
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `metadata` on type `object::ObjectRef`
[INFO] [stderr]    --> src/eval.rs:139:42
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let numeric_value = match target.metadata {
[INFO] [stderr]     |                                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `metadata` on type `object::ObjectRef`
[INFO] [stderr]    --> src/eval.rs:158:39
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 let sum = match other.metadata {
[INFO] [stderr]     |                                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/eval.rs:46:69
[INFO] [stderr]    |
[INFO] [stderr] 46 |             ref m if m == "call" => self.call_with_captured_context(pool),
[INFO] [stderr]    |                                                                     ^^^^ expected struct `eval::Program`, found struct `object::ObjectPool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut eval::Program`
[INFO] [stderr]               found mutable reference `&mut object::ObjectPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `object` on type `&mut object::ObjectRef`
[INFO] [stderr]   --> src/eval.rs:74:14
[INFO] [stderr]    |
[INFO] [stderr] 74 |         self.object.borrow_mut().send(target, message)
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `object` on type `&mut object::ObjectRef`
[INFO] [stderr]   --> src/eval.rs:78:14
[INFO] [stderr]    |
[INFO] [stderr] 78 |         self.object.borrow_mut().define(name, value)
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `metadata` on type `object::ObjectRef`
[INFO] [stderr]    --> src/eval.rs:139:42
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let numeric_value = match target.metadata {
[INFO] [stderr]     |                                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `metadata` on type `object::ObjectRef`
[INFO] [stderr]    --> src/eval.rs:158:39
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 let sum = match other.metadata {
[INFO] [stderr]     |                                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/eval.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |       fn eval_block(&mut self, parent_scope: ObjectRef, block: &Block) -> ObjectRef {
[INFO] [stderr]     |                                                                           --------- expected `object::ObjectRef` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 188 | /         for statement in statements {
[INFO] [stderr] 189 | |             last = self.eval_statement(scope, statement);
[INFO] [stderr] 190 | |         }
[INFO] [stderr]     | |_________^ expected enum `object::ObjectRef`, found `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]    --> src/eval.rs:217:31
[INFO] [stderr]     |
[INFO] [stderr] 217 |                         scope.send(scope, message)
[INFO] [stderr]     |                               ^^^^ -----  ------- supplied 2 arguments
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               expected 3 arguments
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:5
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/eval.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |       fn eval_block(&mut self, parent_scope: ObjectRef, block: &Block) -> ObjectRef {
[INFO] [stderr]     |                                                                           --------- expected `object::ObjectRef` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 188 | /         for statement in statements {
[INFO] [stderr] 189 | |             last = self.eval_statement(scope, statement);
[INFO] [stderr] 190 | |         }
[INFO] [stderr]     | |_________^ expected enum `object::ObjectRef`, found `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]    --> src/eval.rs:217:31
[INFO] [stderr]     |
[INFO] [stderr] 217 |                         scope.send(scope, message)
[INFO] [stderr]     |                               ^^^^ -----  ------- supplied 2 arguments
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               expected 3 arguments
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/object.rs:5:5
[INFO] [stderr]     |
[INFO] [stderr] 5   |     fn send(&mut self, pool: &mut ObjectPool, target: ObjectRef, message: EvaluatedMessage) -> ObjectRef;
[INFO] [stderr]     |     ----------------------------------------------------------------------------------------------------- defined here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 36 previous errors; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0050, E0061, E0277, E0308, E0412, E0422, E0425, E0433, E0560...
[INFO] [stderr] For more information about an error, try `rustc --explain E0050`.
[INFO] [stderr] error: aborting due to 36 previous errors; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0050, E0061, E0277, E0308, E0412, E0422, E0425, E0433, E0560...
[INFO] [stderr] For more information about an error, try `rustc --explain E0050`.
[INFO] [stderr] error: could not compile `lithium`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lithium`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e87c7efee487e1c64d877a442daebe8b87300422dba1481db9a2168f4d27a4c2"`
[INFO] running `"docker" "rm" "-f" "e87c7efee487e1c64d877a442daebe8b87300422dba1481db9a2168f4d27a4c2"`
[INFO] [stdout] e87c7efee487e1c64d877a442daebe8b87300422dba1481db9a2168f4d27a4c2