[INFO] fetching crate adapton 0.3.31...
[INFO] checking adapton-0.3.31 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate adapton 0.3.31 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate adapton 0.3.31 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate adapton 0.3.31
[INFO] finished tweaking crates.io crate adapton 0.3.31
[INFO] tweaked toml for crates.io crate adapton 0.3.31 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65a771429d46d5e4219bf2a2b7fcbae449ed221821a7dde00bd4dce9f11934b2
[INFO] running `Command { std: "docker" "start" "-a" "65a771429d46d5e4219bf2a2b7fcbae449ed221821a7dde00bd4dce9f11934b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65a771429d46d5e4219bf2a2b7fcbae449ed221821a7dde00bd4dce9f11934b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a771429d46d5e4219bf2a2b7fcbae449ed221821a7dde00bd4dce9f11934b2", kill_on_drop: false }`
[INFO] [stdout] 65a771429d46d5e4219bf2a2b7fcbae449ed221821a7dde00bd4dce9f11934b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ce2392572ebf73b8bcf45e97113b74966cb67f56c230433c37e29ecf27230bf
[INFO] running `Command { std: "docker" "start" "-a" "0ce2392572ebf73b8bcf45e97113b74966cb67f56c230433c37e29ecf27230bf", kill_on_drop: false }`
[INFO] [stderr]     Checking adapton v0.3.31 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |         /// An effect without an extent (without nested effects)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1020 |                 dcg_effect!(reflect::trace::Effect::CleanEdge, Some(loc), succ);
[INFO] [stdout]      |                 --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |         /// An effect without an extent (without nested effects)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1268 |         dcg_effect!(reflect::trace::Effect::Remove, Some(src), succ);
[INFO] [stdout]      |         ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1843 | /                         dcg_effect!(
[INFO] [stdout] 1844 | |                             // TODO-Someday: Reflect the fact that we are doing a mapping here
[INFO] [stdout] 1845 | |                             reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 1846 | |                             current_loc!(*g.borrow()),
[INFO] [stdout] ...    |
[INFO] [stdout] 1852 | |                                 is_dup:false,
[INFO] [stdout] 1853 | |                             });
[INFO] [stdout]      | |______________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1910 | /                         dcg_effect!(
[INFO] [stdout] 1911 | |                             // TODO-Someday: Reflect the fact that we are doing a mapping here
[INFO] [stdout] 1912 | |                             reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 1913 | |                             current_loc!(*g.borrow()),
[INFO] [stdout] ...    |
[INFO] [stdout] 1919 | |                                 is_dup:false,
[INFO] [stdout] 1920 | |                             });
[INFO] [stdout]      | |______________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 2056 | /                             dcg_effect!(
[INFO] [stdout] 2057 | |                                 reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 2058 | |                                 current_loc!(*g.borrow()),
[INFO] [stdout] 2059 | |                                 reflect::Succ{
[INFO] [stdout] ...    |
[INFO] [stdout] 2064 | |                                     is_dup:is_dup,
[INFO] [stdout] 2065 | |                                 });
[INFO] [stdout]      | |__________________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/macros.rs:875:6
[INFO] [stdout]     |
[INFO] [stdout] 875 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |         /// An effect without an extent (without nested effects)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1020 |                 dcg_effect!(reflect::trace::Effect::CleanEdge, Some(loc), succ);
[INFO] [stdout]      |                 --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |         /// An effect without an extent (without nested effects)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1268 |         dcg_effect!(reflect::trace::Effect::Remove, Some(src), succ);
[INFO] [stdout]      |         ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1843 | /                         dcg_effect!(
[INFO] [stdout] 1844 | |                             // TODO-Someday: Reflect the fact that we are doing a mapping here
[INFO] [stdout] 1845 | |                             reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 1846 | |                             current_loc!(*g.borrow()),
[INFO] [stdout] ...    |
[INFO] [stdout] 1852 | |                                 is_dup:false,
[INFO] [stdout] 1853 | |                             });
[INFO] [stdout]      | |______________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 1910 | /                         dcg_effect!(
[INFO] [stdout] 1911 | |                             // TODO-Someday: Reflect the fact that we are doing a mapping here
[INFO] [stdout] 1912 | |                             reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 1913 | |                             current_loc!(*g.borrow()),
[INFO] [stdout] ...    |
[INFO] [stdout] 1919 | |                                 is_dup:false,
[INFO] [stdout] 1920 | |                             });
[INFO] [stdout]      | |______________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]     --> src/engine.rs:263:9
[INFO] [stdout]      |
[INFO] [stdout] 263  |           /// An effect without an extent (without nested effects)
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout] ...
[INFO] [stdout] 2056 | /                             dcg_effect!(
[INFO] [stdout] 2057 | |                                 reflect::trace::Effect::Force(reflect::trace::ForceCase::RefGet),
[INFO] [stdout] 2058 | |                                 current_loc!(*g.borrow()),
[INFO] [stdout] 2059 | |                                 reflect::Succ{
[INFO] [stdout] ...    |
[INFO] [stdout] 2064 | |                                     is_dup:is_dup,
[INFO] [stdout] 2065 | |                                 });
[INFO] [stdout]      | |__________________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]      = note: this warning originates in the macro `dcg_effect` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/catalog/collections.rs:1222:4
[INFO] [stdout]      |
[INFO] [stdout] 1222 |   };
[INFO] [stdout]      |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/catalog/collections.rs:1230:4
[INFO] [stdout]      |
[INFO] [stdout] 1230 |   };
[INFO] [stdout]      |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/catalog/collections.rs:1282:4
[INFO] [stdout]      |
[INFO] [stdout] 1282 |   };
[INFO] [stdout]      |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/catalog/collections.rs:1335:4
[INFO] [stdout]      |
[INFO] [stdout] 1335 |   };
[INFO] [stdout]      |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/catalog/trie.rs:270:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         let root_mfn_art = panic!("todo"); //put(Self::root_mfn(nm.clone(), nm_, trie, elt));
[INFO] [stdout]     |                            -------------- any code following this expression is unreachable
[INFO] [stdout] 270 |         Self::name(nm, Self::art(root_mfn_art))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/catalog/trie.rs:270:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         let root_mfn_art = panic!("todo"); //put(Self::root_mfn(nm.clone(), nm_, trie, elt));
[INFO] [stdout]     |                            -------------- any code following this expression is unreachable
[INFO] [stdout] 270 |         Self::name(nm, Self::art(root_mfn_art))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]     --> src/engine.rs:2810:5
[INFO] [stdout]      |
[INFO] [stdout] 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 2813 |         let mut av = explore_rec(a);
[INFO] [stdout]      |                      -------------- recursive call site
[INFO] [stdout]      |
[INFO] [stdout]      = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/engine.rs:2809:12
[INFO] [stdout]      |
[INFO] [stdout] 2809 |     #[warn(unconditional_recursion)]
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nm`
[INFO] [stdout]    --> src/catalog/trie.rs:267:14
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let (nm, nm_) = name_fork(nm);
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_nm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nm_`
[INFO] [stdout]    --> src/catalog/trie.rs:267:18
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let (nm, nm_) = name_fork(nm);
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_nm_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root_mfn_art`
[INFO] [stdout]    --> src/catalog/trie.rs:269:13
[INFO] [stdout]     |
[INFO] [stdout] 269 |         let root_mfn_art = panic!("todo"); //put(Self::root_mfn(nm.clone(), nm_, trie, elt));
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_mfn_art`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trie`
[INFO] [stdout]    --> src/catalog/trie.rs:266:25
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn extend(nm: Name, trie: Self, elt: X) -> Self {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_trie`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elt`
[INFO] [stdout]    --> src/catalog/trie.rs:266:37
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn extend(nm: Name, trie: Self, elt: X) -> Self {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_elt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hash_seeded` is never used
[INFO] [stdout]    --> src/engine.rs:492:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | trait GraphNode : Debug + reflect::Reflect<reflect::Node> {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 492 |     fn hash_seeded     (self:&Self, _: u64) -> u64 ;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eq` is never used
[INFO] [stdout]    --> src/engine.rs:710:8
[INFO] [stdout]     |
[INFO] [stdout] 706 | trait Producer<Res> : Debug {
[INFO] [stdout]     |       -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 710 |     fn eq(self:&Self, other:&dyn Producer<Res>) -> bool;
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]     --> src/engine.rs:1038:31
[INFO] [stdout]      |
[INFO] [stdout] 1038 | struct AllocNominalThunk<T> { val:T }
[INFO] [stdout]      |        -----------------      ^^^
[INFO] [stdout]      |        |
[INFO] [stdout]      |        field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllocNominalThunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]     --> src/engine.rs:1046:23
[INFO] [stdout]      |
[INFO] [stdout] 1046 | struct AllocCell<T> { val:T }
[INFO] [stdout]      |        ---------      ^^^
[INFO] [stdout]      |        |
[INFO] [stdout]      |        field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllocCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AbsDiff` is never used
[INFO] [stdout]     --> src/engine.rs:1109:7
[INFO] [stdout]      |
[INFO] [stdout] 1109 | trait AbsDiff<T> {
[INFO] [stdout]      |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]     --> src/engine.rs:1120:5
[INFO] [stdout]      |
[INFO] [stdout] 1116 | struct ForceAbsDep<Arg,Abs,T,DiffT,S> {
[INFO] [stdout]      |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1120 |     map:(Abs, Box<dyn AbsMapFam<Arg,Abs,T,DiffT,S>>),
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `put` is never used
[INFO] [stdout]     --> src/engine.rs:1432:8
[INFO] [stdout]      |
[INFO] [stdout] 1420 | trait Adapton : Debug+PartialEq+Eq+Hash+Clone {
[INFO] [stdout]      |       ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 1432 |     fn put<T:Eq+Debug+Clone> (self:&mut Self, _: T) -> AbsArt<T,Self::Loc> ;
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `copy` is never used
[INFO] [stdout]     --> src/engine.rs:2160:8
[INFO] [stdout]      |
[INFO] [stdout] 2158 | trait Force<T> {
[INFO] [stdout]      |       ----- method in this trait
[INFO] [stdout] 2159 |     fn force(&self) -> T;
[INFO] [stdout] 2160 |     fn copy(self:&Self) -> Box<dyn Force<T>>;
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nm`
[INFO] [stdout]    --> src/catalog/trie.rs:267:14
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let (nm, nm_) = name_fork(nm);
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_nm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nm_`
[INFO] [stdout]    --> src/catalog/trie.rs:267:18
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let (nm, nm_) = name_fork(nm);
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_nm_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root_mfn_art`
[INFO] [stdout]    --> src/catalog/trie.rs:269:13
[INFO] [stdout]     |
[INFO] [stdout] 269 |         let root_mfn_art = panic!("todo"); //put(Self::root_mfn(nm.clone(), nm_, trie, elt));
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_mfn_art`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trie`
[INFO] [stdout]    --> src/catalog/trie.rs:266:25
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn extend(nm: Name, trie: Self, elt: X) -> Self {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_trie`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elt`
[INFO] [stdout]    --> src/catalog/trie.rs:266:37
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn extend(nm: Name, trie: Self, elt: X) -> Self {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_elt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/engine.rs:955:9
[INFO] [stdout]     |
[INFO] [stdout] 955 |         drop(st);  // End mutable borrow of global RefCell
[INFO] [stdout]     |         ^^^^^--^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut engine::DCG`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 955 -         drop(st);  // End mutable borrow of global RefCell
[INFO] [stdout] 955 +         let _ = st;  // End mutable borrow of global RefCell
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/engine.rs:985:17
[INFO] [stdout]     |
[INFO] [stdout] 985 |                 replace(&mut node.succs, frame.succs.into_iter().map(|(succ,_)|succ).collect() ) ;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 985 |                 let _ = replace(&mut node.succs, frame.succs.into_iter().map(|(succ,_)|succ).collect() ) ;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1319:17
[INFO] [stdout]      |
[INFO] [stdout] 1319 |                 replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1319 |                 let _ = replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1338:17
[INFO] [stdout]      |
[INFO] [stdout] 1338 |                 replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1338 |                 let _ = replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1375:25
[INFO] [stdout]      |
[INFO] [stdout] 1375 |                         replace(&mut nd.val, val) ;
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1375 |                         let _ = replace(&mut nd.val, val) ;
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]     --> src/engine.rs:1950:13
[INFO] [stdout]      |
[INFO] [stdout] 1950 |             drop(st)
[INFO] [stdout]      |             ^^^^^--^
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  argument has type `&mut engine::DCG`
[INFO] [stdout]      |
[INFO] [stdout]      = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]     --> src/engine.rs:2651:25
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.")
[INFO] [stdout]      |                         ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.", ...)
[INFO] [stdout]      |                                                                                                                      +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{}", "{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.")
[INFO] [stdout]      |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hash_seeded` is never used
[INFO] [stdout]    --> src/engine.rs:492:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | trait GraphNode : Debug + reflect::Reflect<reflect::Node> {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 492 |     fn hash_seeded     (self:&Self, _: u64) -> u64 ;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eq` is never used
[INFO] [stdout]    --> src/engine.rs:710:8
[INFO] [stdout]     |
[INFO] [stdout] 706 | trait Producer<Res> : Debug {
[INFO] [stdout]     |       -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 710 |     fn eq(self:&Self, other:&dyn Producer<Res>) -> bool;
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]     --> src/engine.rs:1038:31
[INFO] [stdout]      |
[INFO] [stdout] 1038 | struct AllocNominalThunk<T> { val:T }
[INFO] [stdout]      |        -----------------      ^^^
[INFO] [stdout]      |        |
[INFO] [stdout]      |        field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllocNominalThunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]     --> src/engine.rs:1046:23
[INFO] [stdout]      |
[INFO] [stdout] 1046 | struct AllocCell<T> { val:T }
[INFO] [stdout]      |        ---------      ^^^
[INFO] [stdout]      |        |
[INFO] [stdout]      |        field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `AllocCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AbsDiff` is never used
[INFO] [stdout]     --> src/engine.rs:1109:7
[INFO] [stdout]      |
[INFO] [stdout] 1109 | trait AbsDiff<T> {
[INFO] [stdout]      |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]     --> src/engine.rs:1120:5
[INFO] [stdout]      |
[INFO] [stdout] 1116 | struct ForceAbsDep<Arg,Abs,T,DiffT,S> {
[INFO] [stdout]      |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1120 |     map:(Abs, Box<dyn AbsMapFam<Arg,Abs,T,DiffT,S>>),
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `put` is never used
[INFO] [stdout]     --> src/engine.rs:1432:8
[INFO] [stdout]      |
[INFO] [stdout] 1420 | trait Adapton : Debug+PartialEq+Eq+Hash+Clone {
[INFO] [stdout]      |       ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 1432 |     fn put<T:Eq+Debug+Clone> (self:&mut Self, _: T) -> AbsArt<T,Self::Loc> ;
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `copy` is never used
[INFO] [stdout]     --> src/engine.rs:2160:8
[INFO] [stdout]      |
[INFO] [stdout] 2158 | trait Force<T> {
[INFO] [stdout]      |       ----- method in this trait
[INFO] [stdout] 2159 |     fn force(&self) -> T;
[INFO] [stdout] 2160 |     fn copy(self:&Self) -> Box<dyn Force<T>>;
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `explore_rec` is never used
[INFO] [stdout]     --> src/engine.rs:2810:8
[INFO] [stdout]      |
[INFO] [stdout] 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/engine.rs:955:9
[INFO] [stdout]     |
[INFO] [stdout] 955 |         drop(st);  // End mutable borrow of global RefCell
[INFO] [stdout]     |         ^^^^^--^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut engine::DCG`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 955 -         drop(st);  // End mutable borrow of global RefCell
[INFO] [stdout] 955 +         let _ = st;  // End mutable borrow of global RefCell
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/engine.rs:985:17
[INFO] [stdout]     |
[INFO] [stdout] 985 |                 replace(&mut node.succs, frame.succs.into_iter().map(|(succ,_)|succ).collect() ) ;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 985 |                 let _ = replace(&mut node.succs, frame.succs.into_iter().map(|(succ,_)|succ).collect() ) ;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1319:17
[INFO] [stdout]      |
[INFO] [stdout] 1319 |                 replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1319 |                 let _ = replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1338:17
[INFO] [stdout]      |
[INFO] [stdout] 1338 |                 replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1338 |                 let _ = replace(&mut succ.dirty, true);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]     --> src/engine.rs:1375:25
[INFO] [stdout]      |
[INFO] [stdout] 1375 |                         replace(&mut nd.val, val) ;
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1375 |                         let _ = replace(&mut nd.val, val) ;
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]     --> src/engine.rs:1950:13
[INFO] [stdout]      |
[INFO] [stdout] 1950 |             drop(st)
[INFO] [stdout]      |             ^^^^^--^
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  argument has type `&mut engine::DCG`
[INFO] [stdout]      |
[INFO] [stdout]      = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]     --> src/engine.rs:2651:25
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.")
[INFO] [stdout]      |                         ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.", ...)
[INFO] [stdout]      |                                                                                                                      +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]      |
[INFO] [stdout] 2651 |                 panic!("{}", "{:?}: Constrained to be both clean and dirty: Inconsistent status => DCG is not well-formed.")
[INFO] [stdout]      |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "0ce2392572ebf73b8bcf45e97113b74966cb67f56c230433c37e29ecf27230bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce2392572ebf73b8bcf45e97113b74966cb67f56c230433c37e29ecf27230bf", kill_on_drop: false }`
[INFO] [stdout] 0ce2392572ebf73b8bcf45e97113b74966cb67f56c230433c37e29ecf27230bf
