[INFO] fetching crate yatima-core 0.1.1...
[INFO] checking yatima-core-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate yatima-core 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate yatima-core 0.1.1
[INFO] finished tweaking crates.io crate yatima-core 0.1.1
[INFO] tweaked toml for crates.io crate yatima-core 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yatima-core 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 102 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.7.15 (available: v0.7.20)
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[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
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[INFO] [stderr]       Adding sp-std v3.0.0 (available: v14.0.0)
[INFO] [stderr]       Adding toml_edit v0.19.12 (available: v0.19.15)
[INFO] [stderr]       Adding winnow v0.4.7 (available: v0.4.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 172d3dff39c1a18608d6da89d771a290ae08d1dfd0c996ce227270c8ed4dc4d0
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[INFO] running `Command { std: "docker" "inspect" "172d3dff39c1a18608d6da89d771a290ae08d1dfd0c996ce227270c8ed4dc4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "172d3dff39c1a18608d6da89d771a290ae08d1dfd0c996ce227270c8ed4dc4d0", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ca883993534ad9ef57aef3b47d61992cb95547a8a98a105f363b6c0bcc0423a
[INFO] running `Command { std: "docker" "start" "-a" "4ca883993534ad9ef57aef3b47d61992cb95547a8a98a105f363b6c0bcc0423a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling nom v6.2.2
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[INFO] [stderr]    Compiling serde_json v1.0.145
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[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking data-encoding-macro v0.1.18
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[INFO] [stderr]    Compiling sp-multihash-derive v0.2.0
[INFO] [stderr]     Checking nom_locate v3.0.2
[INFO] [stderr]     Checking sp-multihash v0.2.0
[INFO] [stderr]     Checking sp-cid v0.2.0
[INFO] [stderr]     Checking sp-ipld v0.1.2
[INFO] [stderr]     Checking yatima-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dag.rs:512:11
[INFO] [stdout]     |
[INFO] [stdout] 512 |           last_old.map_or((), |last_old| (*last_old.as_ptr()).next = first_new);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 512 |           let _ = last_old.map_or((), |last_old| (*last_old.as_ptr()).next = first_new);
[INFO] [stdout]     |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dag.rs:516:7
[INFO] [stdout]     |
[INFO] [stdout] 516 |       first_new.map_or((), |first_new| (*first_new.as_ptr()).prev = last_old);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 516 |       let _ = first_new.map_or((), |first_new| (*first_new.as_ptr()).prev = last_old);
[INFO] [stdout]     |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:544:9
[INFO] [stdout]     |
[INFO] [stdout] 544 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:553:9
[INFO] [stdout]     |
[INFO] [stdout] 553 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 553 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:562:9
[INFO] [stdout]     |
[INFO] [stdout] 562 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 562 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:571:9
[INFO] [stdout]     |
[INFO] [stdout] 571 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 571 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:580:9
[INFO] [stdout]     |
[INFO] [stdout] 580 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 580 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 595 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:609:9
[INFO] [stdout]     |
[INFO] [stdout] 609 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 609 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:623:9
[INFO] [stdout]     |
[INFO] [stdout] 623 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 623 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:644:9
[INFO] [stdout]     |
[INFO] [stdout] 644 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 644 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:650:11
[INFO] [stdout]     |
[INFO] [stdout] 650 |           Box::from_raw(link.as_ptr());
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 650 |           let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:654:9
[INFO] [stdout]     |
[INFO] [stdout] 654 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 654 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:657:9
[INFO] [stdout]     |
[INFO] [stdout] 657 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 657 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:660:9
[INFO] [stdout]     |
[INFO] [stdout] 660 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 660 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:663:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 663 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 666 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:681:9
[INFO] [stdout]     |
[INFO] [stdout] 681 |         Box::from_raw(pref.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 681 |         let _ = Box::from_raw(pref.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dll.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     self.next.map_or((), |ptr| unsafe { (*ptr.as_ptr()).prev = new_next });
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let _ = self.next.map_or((), |ptr| unsafe { (*ptr.as_ptr()).prev = new_next });
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dll.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     self.prev.map_or((), |ptr| unsafe { (*ptr.as_ptr()).next = new_prev });
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let _ = self.prev.map_or((), |ptr| unsafe { (*ptr.as_ptr()).next = new_prev });
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dll.rs:100:7
[INFO] [stdout]     |
[INFO] [stdout] 100 |       self.prev.map_or((), |ptr| (*ptr.as_ptr()).next = Some(node));
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 100 |       let _ = self.prev.map_or((), |ptr| (*ptr.as_ptr()).next = Some(node));
[INFO] [stdout]     |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dll.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 | /     first.map_or((), |first| unsafe {
[INFO] [stdout] 153 | |       (*first.as_ptr()).prev = Some(last);
[INFO] [stdout] 154 | |     });
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let _ = first.map_or((), |first| unsafe {
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:592:8
[INFO] [stdout]     |
[INFO] [stdout] 592 |     i: &str,
[INFO] [stdout]     |        ^^^^ the lifetime is elided here
[INFO] [stdout] 593 |   ) -> nom::IResult<Span, DAG, crate::parse::error::ParseError<Span>> {
[INFO] [stdout]     |                     ^^^^ the same lifetime is hidden here      ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 593 |   ) -> nom::IResult<Span<'_>, DAG, crate::parse::error::ParseError<Span<'_>>> {
[INFO] [stdout]     |                         ++++                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:601:8
[INFO] [stdout]     |
[INFO] [stdout] 601 |     i: &str,
[INFO] [stdout]     |        ^^^^ the lifetime is elided here
[INFO] [stdout] 602 |   ) -> nom::IResult<Span, Defs, crate::parse::error::ParseError<Span>> {
[INFO] [stdout]     |                     ^^^^ the same lifetime is hidden here       ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 602 |   ) -> nom::IResult<Span<'_>, Defs, crate::parse::error::ParseError<Span<'_>>> {
[INFO] [stdout]     |                         ++++                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1026:17
[INFO] [stdout]      |
[INFO] [stdout] 1026 | pub fn parse(i: &str, defs: Defs) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                 ^^^^                         ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                 |                            |
[INFO] [stdout]      |                 |                            the same lifetime is hidden here
[INFO] [stdout]      |                 the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1026 | pub fn parse(i: &str, defs: Defs) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                                  ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1038:6
[INFO] [stdout]      |
[INFO] [stdout] 1038 |   i: &str,
[INFO] [stdout]      |      ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 1041 | ) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |              ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |              |
[INFO] [stdout]      |              the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1041 | ) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                  ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u16.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u32.rs:347:32
[INFO] [stdout]     |
[INFO] [stdout] 347 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u8.rs:348:32
[INFO] [stdout]     |
[INFO] [stdout] 348 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/prim/io.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     self.fun_symbol == rhs.fun_symbol
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]    |
[INFO] [stdout] 23 -     self.fun_symbol == rhs.fun_symbol
[INFO] [stdout] 23 +     std::ptr::fn_addr_eq(self.fun_symbol, rhs.fun_symbol)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yatima-core` (lib) due to 3 previous errors; 27 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dag.rs:512:11
[INFO] [stdout]     |
[INFO] [stdout] 512 |           last_old.map_or((), |last_old| (*last_old.as_ptr()).next = first_new);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 512 |           let _ = last_old.map_or((), |last_old| (*last_old.as_ptr()).next = first_new);
[INFO] [stdout]     |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dag.rs:516:7
[INFO] [stdout]     |
[INFO] [stdout] 516 |       first_new.map_or((), |first_new| (*first_new.as_ptr()).prev = last_old);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 516 |       let _ = first_new.map_or((), |first_new| (*first_new.as_ptr()).prev = last_old);
[INFO] [stdout]     |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:544:9
[INFO] [stdout]     |
[INFO] [stdout] 544 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:553:9
[INFO] [stdout]     |
[INFO] [stdout] 553 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 553 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:562:9
[INFO] [stdout]     |
[INFO] [stdout] 562 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 562 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:571:9
[INFO] [stdout]     |
[INFO] [stdout] 571 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 571 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:580:9
[INFO] [stdout]     |
[INFO] [stdout] 580 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 580 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 595 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:609:9
[INFO] [stdout]     |
[INFO] [stdout] 609 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 609 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:623:9
[INFO] [stdout]     |
[INFO] [stdout] 623 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 623 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:644:9
[INFO] [stdout]     |
[INFO] [stdout] 644 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 644 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:650:11
[INFO] [stdout]     |
[INFO] [stdout] 650 |           Box::from_raw(link.as_ptr());
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 650 |           let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:654:9
[INFO] [stdout]     |
[INFO] [stdout] 654 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 654 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:657:9
[INFO] [stdout]     |
[INFO] [stdout] 657 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 657 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:660:9
[INFO] [stdout]     |
[INFO] [stdout] 660 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 660 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:663:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 663 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |         Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 666 |         let _ = Box::from_raw(link.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/dag.rs:681:9
[INFO] [stdout]     |
[INFO] [stdout] 681 |         Box::from_raw(pref.as_ptr());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 681 |         let _ = Box::from_raw(pref.as_ptr());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dll.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     self.next.map_or((), |ptr| unsafe { (*ptr.as_ptr()).prev = new_next });
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let _ = self.next.map_or((), |ptr| unsafe { (*ptr.as_ptr()).prev = new_next });
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dll.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     self.prev.map_or((), |ptr| unsafe { (*ptr.as_ptr()).next = new_prev });
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let _ = self.prev.map_or((), |ptr| unsafe { (*ptr.as_ptr()).next = new_prev });
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dll.rs:100:7
[INFO] [stdout]     |
[INFO] [stdout] 100 |       self.prev.map_or((), |ptr| (*ptr.as_ptr()).next = Some(node));
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 100 |       let _ = self.prev.map_or((), |ptr| (*ptr.as_ptr()).next = Some(node));
[INFO] [stdout]     |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]    --> src/dll.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 | /     first.map_or((), |first| unsafe {
[INFO] [stdout] 153 | |       (*first.as_ptr()).prev = Some(last);
[INFO] [stdout] 154 | |     });
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the returned value, use `if let` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let _ = first.map_or((), |first| unsafe {
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:592:8
[INFO] [stdout]     |
[INFO] [stdout] 592 |     i: &str,
[INFO] [stdout]     |        ^^^^ the lifetime is elided here
[INFO] [stdout] 593 |   ) -> nom::IResult<Span, DAG, crate::parse::error::ParseError<Span>> {
[INFO] [stdout]     |                     ^^^^ the same lifetime is hidden here      ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 593 |   ) -> nom::IResult<Span<'_>, DAG, crate::parse::error::ParseError<Span<'_>>> {
[INFO] [stdout]     |                         ++++                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:601:8
[INFO] [stdout]     |
[INFO] [stdout] 601 |     i: &str,
[INFO] [stdout]     |        ^^^^ the lifetime is elided here
[INFO] [stdout] 602 |   ) -> nom::IResult<Span, Defs, crate::parse::error::ParseError<Span>> {
[INFO] [stdout]     |                     ^^^^ the same lifetime is hidden here       ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 602 |   ) -> nom::IResult<Span<'_>, Defs, crate::parse::error::ParseError<Span<'_>>> {
[INFO] [stdout]     |                         ++++                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1026:17
[INFO] [stdout]      |
[INFO] [stdout] 1026 | pub fn parse(i: &str, defs: Defs) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                 ^^^^                         ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                 |                            |
[INFO] [stdout]      |                 |                            the same lifetime is hidden here
[INFO] [stdout]      |                 the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1026 | pub fn parse(i: &str, defs: Defs) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                                  ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1038:6
[INFO] [stdout]      |
[INFO] [stdout] 1038 |   i: &str,
[INFO] [stdout]      |      ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 1041 | ) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |              ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |              |
[INFO] [stdout]      |              the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1041 | ) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                  ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1077:16
[INFO] [stdout]      |
[INFO] [stdout] 1077 |     fn test(i: &str) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                ^^^^             ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                |                |
[INFO] [stdout]      |                |                the same lifetime is hidden here
[INFO] [stdout]      |                the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1077 |     fn test(i: &str) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                     ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1096:16
[INFO] [stdout]      |
[INFO] [stdout] 1096 |     fn test(i: &str) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                ^^^^             ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                |                |
[INFO] [stdout]      |                |                the same lifetime is hidden here
[INFO] [stdout]      |                the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1096 |     fn test(i: &str) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                     ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1127:10
[INFO] [stdout]      |
[INFO] [stdout] 1127 |       i: &str,
[INFO] [stdout]      |          ^^^^ the lifetime is elided here
[INFO] [stdout] 1128 |     ) -> IResult<Span, Vec<(Uses, Name, Term)>, ParseError<Span>> {
[INFO] [stdout]      |                  ^^^^ the same lifetime is hidden here     ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1128 |     ) -> IResult<Span<'_>, Vec<(Uses, Name, Term)>, ParseError<Span<'_>>> {
[INFO] [stdout]      |                      ++++                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1172:10
[INFO] [stdout]      |
[INFO] [stdout] 1172 |       i: &str,
[INFO] [stdout]      |          ^^^^ the lifetime is elided here
[INFO] [stdout] 1173 |     ) -> IResult<Span, Vec<(Uses, Name, Term)>, ParseError<Span>> {
[INFO] [stdout]      |                  ^^^^ the same lifetime is hidden here     ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1173 |     ) -> IResult<Span<'_>, Vec<(Uses, Name, Term)>, ParseError<Span<'_>>> {
[INFO] [stdout]      |                      ++++                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1221:16
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     fn test(i: &str) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                ^^^^             ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                |                |
[INFO] [stdout]      |                |                the same lifetime is hidden here
[INFO] [stdout]      |                the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     fn test(i: &str) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                     ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1237:16
[INFO] [stdout]      |
[INFO] [stdout] 1237 |     fn test(i: &str) -> IResult<Span, Term, ParseError<Span>> {
[INFO] [stdout]      |                ^^^^             ^^^^                   ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                |                |
[INFO] [stdout]      |                |                the same lifetime is hidden here
[INFO] [stdout]      |                the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1237 |     fn test(i: &str) -> IResult<Span<'_>, Term, ParseError<Span<'_>>> {
[INFO] [stdout]      |                                     ++++                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1270:10
[INFO] [stdout]      |
[INFO] [stdout] 1270 |       i: &str,
[INFO] [stdout]      |          ^^^^ the lifetime is elided here
[INFO] [stdout] 1271 |     ) -> IResult<Span, (Term, Term), ParseError<Span>> {
[INFO] [stdout]      |                  ^^^^                           ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1271 |     ) -> IResult<Span<'_>, (Term, Term), ParseError<Span<'_>>> {
[INFO] [stdout]      |                      ++++                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1317:10
[INFO] [stdout]      |
[INFO] [stdout] 1317 |       i: &str,
[INFO] [stdout]      |          ^^^^ the lifetime is elided here
[INFO] [stdout] 1318 |     ) -> IResult<Span, Vec<(Uses, Name, Term)>, ParseError<Span>> {
[INFO] [stdout]      |                  ^^^^ the same lifetime is hidden here     ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1318 |     ) -> IResult<Span<'_>, Vec<(Uses, Name, Term)>, ParseError<Span<'_>>> {
[INFO] [stdout]      |                      ++++                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/parse/term.rs:1346:10
[INFO] [stdout]      |
[INFO] [stdout] 1346 |       i: &str,
[INFO] [stdout]      |          ^^^^ the lifetime is elided here
[INFO] [stdout] 1347 |     ) -> IResult<Span, Vec<(Uses, Name, Term)>, ParseError<Span>> {
[INFO] [stdout]      |                  ^^^^ the same lifetime is hidden here     ^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1347 |     ) -> IResult<Span<'_>, Vec<(Uses, Name, Term)>, ParseError<Span<'_>>> {
[INFO] [stdout]      |                      ++++                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parse/typedef.rs:349:10
[INFO] [stdout]     |
[INFO] [stdout] 349 |       i: &str,
[INFO] [stdout]     |          ^^^^ the lifetime is elided here
[INFO] [stdout] 350 |     ) -> IResult<Span, Variant, ParseError<Span>> {
[INFO] [stdout]     |                  ^^^^                      ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 350 |     ) -> IResult<Span<'_>, Variant, ParseError<Span<'_>>> {
[INFO] [stdout]     |                      ++++                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parse/typedef.rs:490:20
[INFO] [stdout]     |
[INFO] [stdout] 490 |   fn test_parse(i: &str) -> IResult<Span, TypeDef, ParseError<Span>> {
[INFO] [stdout]     |                    ^^^^             ^^^^                      ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |                |
[INFO] [stdout]     |                    |                the same lifetime is hidden here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 490 |   fn test_parse(i: &str) -> IResult<Span<'_>, TypeDef, ParseError<Span<'_>>> {
[INFO] [stdout]     |                                         ++++                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u16.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u16.rs:556:43
[INFO] [stdout]     |
[INFO] [stdout] 556 |         apply1_u16(Some(Nat(BigUint::from(u64::try_from(a).unwrap()))))
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u32.rs:347:32
[INFO] [stdout]     |
[INFO] [stdout] 347 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u32.rs:576:43
[INFO] [stdout]     |
[INFO] [stdout] 576 |         apply1_u32(Some(Nat(BigUint::from(u64::try_from(a).unwrap()))))
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u8.rs:348:32
[INFO] [stdout]     |
[INFO] [stdout] 348 |         Some(Nat(BigUint::from(u64::try_from(*x).unwrap())))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/prim/u8.rs:565:42
[INFO] [stdout]     |
[INFO] [stdout] 565 |         apply1_u8(Some(Nat(BigUint::from(u64::try_from(a).unwrap()))))
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/prim/io.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     self.fun_symbol == rhs.fun_symbol
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]    |
[INFO] [stdout] 23 -     self.fun_symbol == rhs.fun_symbol
[INFO] [stdout] 23 +     std::ptr::fn_addr_eq(self.fun_symbol, rhs.fun_symbol)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yatima-core` (lib test) due to 6 previous errors; 38 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4ca883993534ad9ef57aef3b47d61992cb95547a8a98a105f363b6c0bcc0423a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca883993534ad9ef57aef3b47d61992cb95547a8a98a105f363b6c0bcc0423a", kill_on_drop: false }`
[INFO] [stdout] 4ca883993534ad9ef57aef3b47d61992cb95547a8a98a105f363b6c0bcc0423a
