[INFO] updating cached repository https://github.com/mthom/rusty-wam
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[INFO] [stderr] From https://github.com/mthom/rusty-wam
[INFO] [stderr]    e108b84..1ec831b  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ec831b2e24cfa22983de603b5a83e51b38e072e
[INFO] checking mthom/rusty-wam against try#8d67a66581ea5498d7ac03b8f88a478d8ec75cf0 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthom%2Frusty-wam" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mthom/rusty-wam on toolchain 8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mthom/rusty-wam
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[INFO] tweaked toml for git repo https://github.com/mthom/rusty-wam written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prolog_parser v0.8.30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb464c27b7d11b8addc95ae4ca375d2cca6289c6540c8d7a39233d24df57156a
[INFO] running `"docker" "start" "-a" "fb464c27b7d11b8addc95ae4ca375d2cca6289c6540c8d7a39233d24df57156a"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rug v1.6.0
[INFO] [stderr]    Compiling indexmap v1.2.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]    Compiling scryer-prolog v0.8.96 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking lexical v2.2.2
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]     Checking rustyline v5.0.3
[INFO] [stderr]     Checking prolog_parser v0.8.30
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:704:9
[INFO] [stderr]     |
[INFO] [stderr] 704 |         try!(self.compile_seq(iter, &conjunct_info, &mut code, false));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:803:9
[INFO] [stderr]     |
[INFO] [stderr] 803 |         try!(self.compile_seq(iter, &conjunct_info, &mut code, true));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:871:53
[INFO] [stderr]     |
[INFO] [stderr] 871 |                 &PredicateClause::Rule(ref rule) => try!(self.compile_rule(rule)),
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:907:36
[INFO] [stderr]     |
[INFO] [stderr] 907 |             let mut code_segment = try!(self.compile_pred_subseq(&clauses[l..r]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/compile.rs:185:20
[INFO] [stderr]     |
[INFO] [stderr] 185 |     let mut code = try!(cg.compile_query(&terms));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/toplevel.rs:788:39
[INFO] [stderr]     |
[INFO] [stderr] 788 |                     Ok(TopLevel::Fact(try!(self.setup_fact(term, true))))
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/toplevel.rs:791:39
[INFO] [stderr]     |
[INFO] [stderr] 791 |             term => Ok(TopLevel::Fact(try!(self.setup_fact(term, true)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/prolog/heap_print.rs:150:15
[INFO] [stderr]     |
[INFO] [stderr] 150 |         '\x20'...'\x7e' => c.to_string(),
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/iterators.rs:344:15
[INFO] [stderr]     |
[INFO] [stderr] 344 |     iter: Box<Iterator<Item = ChunkedTerm<'a>> + 'a>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ChunkedTerm<'a>> + 'a`
[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/prolog/iterators.rs:353:40
[INFO] [stderr]     |
[INFO] [stderr] 353 |     pub fn rule_body_iter(self) -> Box<Iterator<Item = RuleBodyIteratorItem<'a>> + 'a> {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = RuleBodyIteratorItem<'a>> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_errors.rs:253:46
[INFO] [stderr]     |
[INFO] [stderr] 253 |     fn into_iter(self, offset: usize) -> Box<Iterator<Item = HeapCellValue>> {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = HeapCellValue>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:917:11
[INFO] [stderr]     |
[INFO] [stderr] 917 | downcast!(CallPolicy);
[INFO] [stderr]     |           ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:924:33
[INFO] [stderr]     |
[INFO] [stderr] 924 |     pub(crate) prev_policy: Box<CallPolicy>,
[INFO] [stderr]     |                                 ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:931:49
[INFO] [stderr]     |
[INFO] [stderr] 931 |     pub(crate) fn new_in_place(policy: &mut Box<CallPolicy>) {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:932:34
[INFO] [stderr]     |
[INFO] [stderr] 932 |         let mut prev_policy: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]     |                                  ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:990:48
[INFO] [stderr]     |
[INFO] [stderr] 990 |     pub(crate) fn into_inner(&mut self) -> Box<CallPolicy> {
[INFO] [stderr]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:991:32
[INFO] [stderr]     |
[INFO] [stderr] 991 |         let mut new_inner: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state.rs:1002:11
[INFO] [stderr]      |
[INFO] [stderr] 1002 | downcast!(CutPolicy);
[INFO] [stderr]      |           ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3172:31
[INFO] [stderr]      |
[INFO] [stderr] 3172 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3173:30
[INFO] [stderr]      |
[INFO] [stderr] 3173 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3188:42
[INFO] [stderr]      |
[INFO] [stderr] 3188 |         let mut default_call_policy: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]      |                                          ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3238:31
[INFO] [stderr]      |
[INFO] [stderr] 3238 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3239:30
[INFO] [stderr]      |
[INFO] [stderr] 3239 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3274:31
[INFO] [stderr]      |
[INFO] [stderr] 3274 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3313:31
[INFO] [stderr]      |
[INFO] [stderr] 3313 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3362:30
[INFO] [stderr]      |
[INFO] [stderr] 3362 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/system_calls.rs:553:31
[INFO] [stderr]     |
[INFO] [stderr] 553 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]     |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/system_calls.rs:554:30
[INFO] [stderr]     |
[INFO] [stderr] 554 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |     call_policy: Box<CallPolicy>,
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |     cut_policy: Box<CutPolicy>,
[INFO] [stderr]    |                     ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:78:49
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub(super) prolog_stream: ParsingStream<Box<Read>>,
[INFO] [stderr]    |                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/read.rs:26:43
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub type PrologStream = ParsingStream<Box<Read>>;
[INFO] [stderr]    |                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/read.rs:119:25
[INFO] [stderr]     |
[INFO] [stderr] 119 |         let reader: Box<Read> = Box::new(ReadlineStream::input_stream(String::from("")));
[INFO] [stderr]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:704:9
[INFO] [stderr]     |
[INFO] [stderr] 704 |         try!(self.compile_seq(iter, &conjunct_info, &mut code, false));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:803:9
[INFO] [stderr]     |
[INFO] [stderr] 803 |         try!(self.compile_seq(iter, &conjunct_info, &mut code, true));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:871:53
[INFO] [stderr]     |
[INFO] [stderr] 871 |                 &PredicateClause::Rule(ref rule) => try!(self.compile_rule(rule)),
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/codegen.rs:907:36
[INFO] [stderr]     |
[INFO] [stderr] 907 |             let mut code_segment = try!(self.compile_pred_subseq(&clauses[l..r]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/compile.rs:185:20
[INFO] [stderr]     |
[INFO] [stderr] 185 |     let mut code = try!(cg.compile_query(&terms));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/toplevel.rs:788:39
[INFO] [stderr]     |
[INFO] [stderr] 788 |                     Ok(TopLevel::Fact(try!(self.setup_fact(term, true))))
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prolog/machine/toplevel.rs:791:39
[INFO] [stderr]     |
[INFO] [stderr] 791 |             term => Ok(TopLevel::Fact(try!(self.setup_fact(term, true)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/prolog/heap_print.rs:150:15
[INFO] [stderr]     |
[INFO] [stderr] 150 |         '\x20'...'\x7e' => c.to_string(),
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/iterators.rs:344:15
[INFO] [stderr]     |
[INFO] [stderr] 344 |     iter: Box<Iterator<Item = ChunkedTerm<'a>> + 'a>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ChunkedTerm<'a>> + 'a`
[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/prolog/iterators.rs:353:40
[INFO] [stderr]     |
[INFO] [stderr] 353 |     pub fn rule_body_iter(self) -> Box<Iterator<Item = RuleBodyIteratorItem<'a>> + 'a> {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = RuleBodyIteratorItem<'a>> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_errors.rs:253:46
[INFO] [stderr]     |
[INFO] [stderr] 253 |     fn into_iter(self, offset: usize) -> Box<Iterator<Item = HeapCellValue>> {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = HeapCellValue>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:917:11
[INFO] [stderr]     |
[INFO] [stderr] 917 | downcast!(CallPolicy);
[INFO] [stderr]     |           ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:924:33
[INFO] [stderr]     |
[INFO] [stderr] 924 |     pub(crate) prev_policy: Box<CallPolicy>,
[INFO] [stderr]     |                                 ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:931:49
[INFO] [stderr]     |
[INFO] [stderr] 931 |     pub(crate) fn new_in_place(policy: &mut Box<CallPolicy>) {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:932:34
[INFO] [stderr]     |
[INFO] [stderr] 932 |         let mut prev_policy: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]     |                                  ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:990:48
[INFO] [stderr]     |
[INFO] [stderr] 990 |     pub(crate) fn into_inner(&mut self) -> Box<CallPolicy> {
[INFO] [stderr]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:991:32
[INFO] [stderr]     |
[INFO] [stderr] 991 |         let mut new_inner: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state.rs:1002:11
[INFO] [stderr]      |
[INFO] [stderr] 1002 | downcast!(CutPolicy);
[INFO] [stderr]      |           ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3172:31
[INFO] [stderr]      |
[INFO] [stderr] 3172 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3173:30
[INFO] [stderr]      |
[INFO] [stderr] 3173 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3188:42
[INFO] [stderr]      |
[INFO] [stderr] 3188 |         let mut default_call_policy: Box<CallPolicy> = Box::new(DefaultCallPolicy {});
[INFO] [stderr]      |                                          ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3238:31
[INFO] [stderr]      |
[INFO] [stderr] 3238 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3239:30
[INFO] [stderr]      |
[INFO] [stderr] 3239 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3274:31
[INFO] [stderr]      |
[INFO] [stderr] 3274 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3313:31
[INFO] [stderr]      |
[INFO] [stderr] 3313 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]      |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:3362:30
[INFO] [stderr]      |
[INFO] [stderr] 3362 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]      |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/system_calls.rs:553:31
[INFO] [stderr]     |
[INFO] [stderr] 553 |         call_policy: &mut Box<CallPolicy>,
[INFO] [stderr]     |                               ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/machine/system_calls.rs:554:30
[INFO] [stderr]     |
[INFO] [stderr] 554 |         cut_policy: &mut Box<CutPolicy>,
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |     call_policy: Box<CallPolicy>,
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn CallPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |     cut_policy: Box<CutPolicy>,
[INFO] [stderr]    |                     ^^^^^^^^^ help: use `dyn`: `dyn CutPolicy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/machine/mod.rs:78:49
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub(super) prolog_stream: ParsingStream<Box<Read>>,
[INFO] [stderr]    |                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/prolog/read.rs:26:43
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub type PrologStream = ParsingStream<Box<Read>>;
[INFO] [stderr]    |                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prolog/read.rs:119:25
[INFO] [stderr]     |
[INFO] [stderr] 119 |         let reader: Box<Read> = Box::new(ReadlineStream::input_stream(String::from("")));
[INFO] [stderr]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 01s
[INFO] running `"docker" "inspect" "fb464c27b7d11b8addc95ae4ca375d2cca6289c6540c8d7a39233d24df57156a"`
[INFO] running `"docker" "rm" "-f" "fb464c27b7d11b8addc95ae4ca375d2cca6289c6540c8d7a39233d24df57156a"`
[INFO] [stdout] fb464c27b7d11b8addc95ae4ca375d2cca6289c6540c8d7a39233d24df57156a