[INFO] updating cached repository https://github.com/GavinMendelGleason/prolog-rs
[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] 30dfe09f6a5a5a5355285cf69149f6c87d51a909
[INFO] checking GavinMendelGleason/prolog-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGavinMendelGleason%2Fprolog-rs" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GavinMendelGleason/prolog-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/GavinMendelGleason/prolog-rs
[INFO] finished tweaking git repo https://github.com/GavinMendelGleason/prolog-rs
[INFO] tweaked toml for git repo https://github.com/GavinMendelGleason/prolog-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/GavinMendelGleason/prolog-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 8ed5784c74078a2b91f399db1a05e0af7355abc53abf3f898dfd0ff628d5b6cb
[INFO] running `"docker" "start" "-a" "8ed5784c74078a2b91f399db1a05e0af7355abc53abf3f898dfd0ff628d5b6cb"`
[INFO] [stderr]     Checking prolog-target v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant `var` should have an upper camel case name
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     var(Box<Var>),
[INFO] [stderr]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Var`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `func` should have an upper camel case name
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     func(Box<Function>), 
[INFO] [stderr]   |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Func`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `cons` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cons(Box<Term>, Box<Args>),
[INFO] [stderr]    |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cons`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     nil,
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `cons_eq` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     cons_eq(Box<Var>,Box<Term>,Box<Env>),
[INFO] [stderr]    |     ^^^^^^^ help: convert the identifier to upper camel case: `ConsEq`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     nil,
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `var` should have an upper camel case name
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     var(Box<Var>),
[INFO] [stderr]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Var`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `func` should have an upper camel case name
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     func(Box<Function>), 
[INFO] [stderr]   |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Func`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `cons` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cons(Box<Term>, Box<Args>),
[INFO] [stderr]    |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cons`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     nil,
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `cons_eq` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     cons_eq(Box<Var>,Box<Term>,Box<Env>),
[INFO] [stderr]    |     ^^^^^^^ help: convert the identifier to upper camel case: `ConsEq`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     nil,
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `envnil`
[INFO] [stderr]    --> src/main.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let envnil = Box::new(Env::nil);
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_envnil`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `funterm2`
[INFO] [stderr]    --> src/main.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |     let funterm2 = Term::func(Box::new(fun2));
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_funterm2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `envnil`
[INFO] [stderr]    --> src/main.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let envnil = Box::new(Env::nil);
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_envnil`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `funterm2`
[INFO] [stderr]    --> src/main.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |     let funterm2 = Term::func(Box::new(fun2));
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_funterm2`
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `env`
[INFO] [stderr]    --> src/main.rs:123:21
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn unify(env: Box<Env>, t: Box<Term>, s: Box<Term>) -> Option<Box<Env>> {
[INFO] [stderr]     |          --- move occurs because `env` has type `std::boxed::Box<Env>`, which does not implement the `Copy` trait
[INFO] [stderr] 122 |     let t = *enrich(env,t);
[INFO] [stderr]     |                     --- value moved here
[INFO] [stderr] 123 |     let s = *enrich(env,s);
[INFO] [stderr]     |                     ^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `env`
[INFO] [stderr]    --> src/main.rs:123:21
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn unify(env: Box<Env>, t: Box<Term>, s: Box<Term>) -> Option<Box<Env>> {
[INFO] [stderr]     |          --- move occurs because `env` has type `std::boxed::Box<Env>`, which does not implement the `Copy` trait
[INFO] [stderr] 122 |     let t = *enrich(env,t);
[INFO] [stderr]     |                     --- value moved here
[INFO] [stderr] 123 |     let s = *enrich(env,s);
[INFO] [stderr]     |                     ^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `t`
[INFO] [stderr]    --> src/main.rs:138:48
[INFO] [stderr]     |
[INFO] [stderr] 134 |         Term::func(f) =>
[INFO] [stderr]     |                    - value moved here
[INFO] [stderr] ...
[INFO] [stderr] 138 |                     Some(extend(env,y,Box::new(t))),
[INFO] [stderr]     |                                                ^ value used here after partial move
[INFO] [stderr]     |
[INFO] [stderr]     = note: move occurs because value has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `t`
[INFO] [stderr]    --> src/main.rs:138:48
[INFO] [stderr]     |
[INFO] [stderr] 134 |         Term::func(f) =>
[INFO] [stderr]     |                    - value moved here
[INFO] [stderr] ...
[INFO] [stderr] 138 |                     Some(extend(env,y,Box::new(t))),
[INFO] [stderr]     |                                                ^ value used here after partial move
[INFO] [stderr]     |
[INFO] [stderr]     = note: move occurs because value has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `env`
[INFO] [stderr]    --> src/main.rs:142:36
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn unify(env: Box<Env>, t: Box<Term>, s: Box<Term>) -> Option<Box<Env>> {
[INFO] [stderr]     |          --- move occurs because `env` has type `std::boxed::Box<Env>`, which does not implement the `Copy` trait
[INFO] [stderr] 122 |     let t = *enrich(env,t);
[INFO] [stderr] 123 |     let s = *enrich(env,s);
[INFO] [stderr]     |                     --- value moved here
[INFO] [stderr] ...
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                    ^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `env`
[INFO] [stderr]    --> src/main.rs:142:36
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn unify(env: Box<Env>, t: Box<Term>, s: Box<Term>) -> Option<Box<Env>> {
[INFO] [stderr]     |          --- move occurs because `env` has type `std::boxed::Box<Env>`, which does not implement the `Copy` trait
[INFO] [stderr] 122 |     let t = *enrich(env,t);
[INFO] [stderr] 123 |     let s = *enrich(env,s);
[INFO] [stderr]     |                     --- value moved here
[INFO] [stderr] ...
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                    ^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `f.args`
[INFO] [stderr]    --> src/main.rs:142:40
[INFO] [stderr]     |
[INFO] [stderr] 134 |         Term::func(f) =>
[INFO] [stderr]     |                    - move occurs because `f` has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] ...
[INFO] [stderr] 141 |                     if fun_match(f,g) {
[INFO] [stderr]     |                                  - value moved here
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                        ^^^^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `g.args`
[INFO] [stderr]    --> src/main.rs:142:47
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 Term::func(g) =>
[INFO] [stderr]     |                            - move occurs because `g` has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] 140 |                     /* rigid- rigid */
[INFO] [stderr] 141 |                     if fun_match(f,g) {
[INFO] [stderr]     |                                    - value moved here
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                               ^^^^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `f.args`
[INFO] [stderr]    --> src/main.rs:142:40
[INFO] [stderr]     |
[INFO] [stderr] 134 |         Term::func(f) =>
[INFO] [stderr]     |                    - move occurs because `f` has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] ...
[INFO] [stderr] 141 |                     if fun_match(f,g) {
[INFO] [stderr]     |                                  - value moved here
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                        ^^^^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: use of moved value: `g.args`
[INFO] [stderr]    --> src/main.rs:142:47
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 Term::func(g) =>
[INFO] [stderr]     |                            - move occurs because `g` has type `std::boxed::Box<Function>`, which does not implement the `Copy` trait
[INFO] [stderr] 140 |                     /* rigid- rigid */
[INFO] [stderr] 141 |                     if fun_match(f,g) {
[INFO] [stderr]     |                                    - value moved here
[INFO] [stderr] 142 |                         unify_args(env,f.args,g.args)
[INFO] [stderr]     |                                               ^^^^^^ value used here after move
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors; 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0382`.
[INFO] [stderr] error: aborting due to 5 previous errors; 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0382`.
[INFO] [stderr] error: could not compile `prolog-target`.
[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 `prolog-target`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8ed5784c74078a2b91f399db1a05e0af7355abc53abf3f898dfd0ff628d5b6cb"`
[INFO] running `"docker" "rm" "-f" "8ed5784c74078a2b91f399db1a05e0af7355abc53abf3f898dfd0ff628d5b6cb"`
[INFO] [stdout] 8ed5784c74078a2b91f399db1a05e0af7355abc53abf3f898dfd0ff628d5b6cb