[INFO] fetching crate serde_single_or_vec2 1.0.1...
[INFO] testing serde_single_or_vec2-1.0.1 against 1.95.0 for beta-1.96-2
[INFO] extracting crate serde_single_or_vec2 1.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate serde_single_or_vec2 1.0.1
[INFO] finished tweaking crates.io crate serde_single_or_vec2 1.0.1
[INFO] tweaked toml for crates.io crate serde_single_or_vec2 1.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_single_or_vec2 1.0.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.5.2 (available: v0.7.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c03e1e4ada986ad1d2db8e6898d4dd5917490f2b50776a7582f326c736ba52d4
[INFO] running `Command { std: "docker" "start" "-a" "c03e1e4ada986ad1d2db8e6898d4dd5917490f2b50776a7582f326c736ba52d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c03e1e4ada986ad1d2db8e6898d4dd5917490f2b50776a7582f326c736ba52d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c03e1e4ada986ad1d2db8e6898d4dd5917490f2b50776a7582f326c736ba52d4", kill_on_drop: false }`
[INFO] [stdout] c03e1e4ada986ad1d2db8e6898d4dd5917490f2b50776a7582f326c736ba52d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac65c8c92689d67dd1d1a414bc906df03e516892938a17861182281ec510cc95
[INFO] running `Command { std: "docker" "start" "-a" "ac65c8c92689d67dd1d1a414bc906df03e516892938a17861182281ec510cc95", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde_single_or_vec2 v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3020:12
[INFO] [stdout]      |
[INFO] [stdout] 3020 | pub struct StrDeserializer<'a, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowedStrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3045:12
[INFO] [stdout]      |
[INFO] [stdout] 3045 | pub struct BorrowedStrDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3071:12
[INFO] [stdout]      |
[INFO] [stdout] 3071 | pub struct FlatMapDeserializer<'a, 'de: 'a, E>(
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `deserialize_other` is never used
[INFO] [stdout]     --> src/serde_content.rs:3081:8
[INFO] [stdout]      |
[INFO] [stdout] 3077 | / impl<'a, 'de, E> FlatMapDeserializer<'a, 'de, E>
[INFO] [stdout] 3078 | | where
[INFO] [stdout] 3079 | |     E: Error,
[INFO] [stdout]      | |_____________- associated function in this implementation
[INFO] [stdout] 3080 |   {
[INFO] [stdout] 3081 |       fn deserialize_other<V>() -> Result<V, E> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3231:8
[INFO] [stdout]      |
[INFO] [stdout] 3231 | struct FlatMapAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatStructAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3275:8
[INFO] [stdout]      |
[INFO] [stdout] 3275 | struct FlatStructAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flat_map_take_entry` is never used
[INFO] [stdout]     --> src/serde_content.rs:3317:4
[INFO] [stdout]      |
[INFO] [stdout] 3317 | fn flat_map_take_entry<'de>(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantSeed` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3336:12
[INFO] [stdout]      |
[INFO] [stdout] 3336 | pub struct AdjacentlyTaggedEnumVariantSeed<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3342:12
[INFO] [stdout]      |
[INFO] [stdout] 3342 | pub struct AdjacentlyTaggedEnumVariantVisitor<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `content_as_str` is never used
[INFO] [stdout]    --> src/serde_content.rs:309:12
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn content_as_str<'a>(content: &'a Content<'_>) -> Option<&'a str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:346:16
[INFO] [stdout]     |
[INFO] [stdout] 346 |     pub struct ContentVisitor<'de> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:351:16
[INFO] [stdout]     |
[INFO] [stdout] 350 |     impl<'de> ContentVisitor<'de> {
[INFO] [stdout]     |     ----------------------------- associated function in this implementation
[INFO] [stdout] 351 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContent` is never used
[INFO] [stdout]    --> src/serde_content.rs:571:14
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub enum TagOrContent<'de> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:578:12
[INFO] [stdout]     |
[INFO] [stdout] 578 |     struct TagOrContentVisitor<'de> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:584:12
[INFO] [stdout]     |
[INFO] [stdout] 583 |     impl<'de> TagOrContentVisitor<'de> {
[INFO] [stdout]     |     ---------------------------------- associated function in this implementation
[INFO] [stdout] 584 |         fn new(name: &'static str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaggedContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:868:16
[INFO] [stdout]     |
[INFO] [stdout] 868 |     pub struct TaggedContentVisitor<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContentField` is never used
[INFO] [stdout]    --> src/serde_content.rs:931:14
[INFO] [stdout]     |
[INFO] [stdout] 931 |     pub enum TagOrContentField {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentFieldVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:937:16
[INFO] [stdout]     |
[INFO] [stdout] 937 |     pub struct TagOrContentFieldVisitor {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagContentOtherField` is never used
[INFO] [stdout]     --> src/serde_content.rs:1007:14
[INFO] [stdout]      |
[INFO] [stdout] 1007 |     pub enum TagContentOtherField {
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagContentOtherFieldVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1014:16
[INFO] [stdout]      |
[INFO] [stdout] 1014 |     pub struct TagContentOtherFieldVisitor {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1076:16
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub struct ContentDeserializer<'de, E> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `invalid_type`, `deserialize_integer`, and `deserialize_float` are never used
[INFO] [stdout]     --> src/serde_content.rs:1086:12
[INFO] [stdout]      |
[INFO] [stdout] 1081 | /     impl<'de, E> ContentDeserializer<'de, E>
[INFO] [stdout] 1082 | |     where
[INFO] [stdout] 1083 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1086 |           fn invalid_type(self, exp: &dyn Expected) -> E {
[INFO] [stdout]      |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1090 |           fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1107 |           fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_seq` is never used
[INFO] [stdout]     --> src/serde_content.rs:1127:8
[INFO] [stdout]      |
[INFO] [stdout] 1127 |     fn visit_content_seq<'de, V, E>(content: Vec<Content<'de>>, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_map` is never used
[INFO] [stdout]     --> src/serde_content.rs:1138:8
[INFO] [stdout]      |
[INFO] [stdout] 1138 |     fn visit_content_map<'de, V, E>(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1523:16
[INFO] [stdout]      |
[INFO] [stdout] 1521 |     impl<'de, E> ContentDeserializer<'de, E> {
[INFO] [stdout]      |     ---------------------------------------- associated function in this implementation
[INFO] [stdout] 1522 |         /// private API, don't use
[INFO] [stdout] 1523 |         pub fn new(content: Content<'de>) -> Self {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SeqDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1531:12
[INFO] [stdout]      |
[INFO] [stdout] 1531 |     struct SeqDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1538:12
[INFO] [stdout]      |
[INFO] [stdout] 1537 |     impl<'de, E> SeqDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1538 |         fn new(content: Vec<Content<'de>>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1551:12
[INFO] [stdout]      |
[INFO] [stdout] 1547 | /     impl<'de, E> SeqDeserializer<'de, E>
[INFO] [stdout] 1548 | |     where
[INFO] [stdout] 1549 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1550 |       {
[INFO] [stdout] 1551 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1624:12
[INFO] [stdout]      |
[INFO] [stdout] 1624 |     struct MapDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1632:12
[INFO] [stdout]      |
[INFO] [stdout] 1631 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1632 |         fn new(content: Vec<(Content<'de>, Content<'de>)>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1646:12
[INFO] [stdout]      |
[INFO] [stdout] 1642 | /     impl<'de, E> MapDeserializer<'de, E>
[INFO] [stdout] 1643 | |     where
[INFO] [stdout] 1644 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1645 |       {
[INFO] [stdout] 1646 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_pair` is never used
[INFO] [stdout]     --> src/serde_content.rs:1662:12
[INFO] [stdout]      |
[INFO] [stdout] 1661 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ method in this implementation
[INFO] [stdout] 1662 |         fn next_pair(&mut self) -> Option<(Content<'de>, Content<'de>)> {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1790:12
[INFO] [stdout]      |
[INFO] [stdout] 1790 |     struct PairDeserializer<'de, E>(Content<'de>, Content<'de>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1841:12
[INFO] [stdout]      |
[INFO] [stdout] 1841 |     struct PairVisitor<'de, E>(Option<Content<'de>>, Option<Content<'de>>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1885:16
[INFO] [stdout]      |
[INFO] [stdout] 1885 |     pub struct EnumDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1898:16
[INFO] [stdout]      |
[INFO] [stdout] 1894 | /     impl<'de, E> EnumDeserializer<'de, E>
[INFO] [stdout] 1895 | |     where
[INFO] [stdout] 1896 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- associated function in this implementation
[INFO] [stdout] 1897 |       {
[INFO] [stdout] 1898 |           pub fn new(variant: Content<'de>, value: Option<Content<'de>>) -> EnumDeserializer<'de, E> {
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariantDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1927:16
[INFO] [stdout]      |
[INFO] [stdout] 1927 |     pub struct VariantDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InternallyTaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2951:16
[INFO] [stdout]      |
[INFO] [stdout] 2951 |     pub struct InternallyTaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UntaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2986:16
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     pub struct UntaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.15s
[INFO] running `Command { std: "docker" "inspect" "ac65c8c92689d67dd1d1a414bc906df03e516892938a17861182281ec510cc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac65c8c92689d67dd1d1a414bc906df03e516892938a17861182281ec510cc95", kill_on_drop: false }`
[INFO] [stdout] ac65c8c92689d67dd1d1a414bc906df03e516892938a17861182281ec510cc95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff3243161fc93c572d7469d4679e5e5d9dd1da0cd5a9dd647adf598dcf52befb
[INFO] running `Command { std: "docker" "start" "-a" "ff3243161fc93c572d7469d4679e5e5d9dd1da0cd5a9dd647adf598dcf52befb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stdout] warning: struct `StrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3020:12
[INFO] [stdout]      |
[INFO] [stdout] 3020 | pub struct StrDeserializer<'a, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowedStrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3045:12
[INFO] [stdout]      |
[INFO] [stdout] 3045 | pub struct BorrowedStrDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3071:12
[INFO] [stdout]      |
[INFO] [stdout] 3071 | pub struct FlatMapDeserializer<'a, 'de: 'a, E>(
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `deserialize_other` is never used
[INFO] [stdout]     --> src/serde_content.rs:3081:8
[INFO] [stdout]      |
[INFO] [stdout] 3077 | / impl<'a, 'de, E> FlatMapDeserializer<'a, 'de, E>
[INFO] [stdout] 3078 | | where
[INFO] [stdout] 3079 | |     E: Error,
[INFO] [stdout]      | |_____________- associated function in this implementation
[INFO] [stdout] 3080 |   {
[INFO] [stdout] 3081 |       fn deserialize_other<V>() -> Result<V, E> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3231:8
[INFO] [stdout]      |
[INFO] [stdout] 3231 | struct FlatMapAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatStructAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3275:8
[INFO] [stdout]      |
[INFO] [stdout] 3275 | struct FlatStructAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flat_map_take_entry` is never used
[INFO] [stdout]     --> src/serde_content.rs:3317:4
[INFO] [stdout]      |
[INFO] [stdout] 3317 | fn flat_map_take_entry<'de>(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantSeed` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3336:12
[INFO] [stdout]      |
[INFO] [stdout] 3336 | pub struct AdjacentlyTaggedEnumVariantSeed<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3342:12
[INFO] [stdout]      |
[INFO] [stdout] 3342 | pub struct AdjacentlyTaggedEnumVariantVisitor<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `content_as_str` is never used
[INFO] [stdout]    --> src/serde_content.rs:309:12
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn content_as_str<'a>(content: &'a Content<'_>) -> Option<&'a str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:346:16
[INFO] [stdout]     |
[INFO] [stdout] 346 |     pub struct ContentVisitor<'de> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:351:16
[INFO] [stdout]     |
[INFO] [stdout] 350 |     impl<'de> ContentVisitor<'de> {
[INFO] [stdout]     |     ----------------------------- associated function in this implementation
[INFO] [stdout] 351 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContent` is never used
[INFO] [stdout]    --> src/serde_content.rs:571:14
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub enum TagOrContent<'de> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:578:12
[INFO] [stdout]     |
[INFO] [stdout] 578 |     struct TagOrContentVisitor<'de> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:584:12
[INFO] [stdout]     |
[INFO] [stdout] 583 |     impl<'de> TagOrContentVisitor<'de> {
[INFO] [stdout]     |     ---------------------------------- associated function in this implementation
[INFO] [stdout] 584 |         fn new(name: &'static str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaggedContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:868:16
[INFO] [stdout]     |
[INFO] [stdout] 868 |     pub struct TaggedContentVisitor<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContentField` is never used
[INFO] [stdout]    --> src/serde_content.rs:931:14
[INFO] [stdout]     |
[INFO] [stdout] 931 |     pub enum TagOrContentField {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentFieldVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:937:16
[INFO] [stdout]     |
[INFO] [stdout] 937 |     pub struct TagOrContentFieldVisitor {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagContentOtherField` is never used
[INFO] [stdout]     --> src/serde_content.rs:1007:14
[INFO] [stdout]      |
[INFO] [stdout] 1007 |     pub enum TagContentOtherField {
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagContentOtherFieldVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1014:16
[INFO] [stdout]      |
[INFO] [stdout] 1014 |     pub struct TagContentOtherFieldVisitor {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1076:16
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub struct ContentDeserializer<'de, E> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `invalid_type`, `deserialize_integer`, and `deserialize_float` are never used
[INFO] [stdout]     --> src/serde_content.rs:1086:12
[INFO] [stdout]      |
[INFO] [stdout] 1081 | /     impl<'de, E> ContentDeserializer<'de, E>
[INFO] [stdout] 1082 | |     where
[INFO] [stdout] 1083 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1086 |           fn invalid_type(self, exp: &dyn Expected) -> E {
[INFO] [stdout]      |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1090 |           fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1107 |           fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_seq` is never used
[INFO] [stdout]     --> src/serde_content.rs:1127:8
[INFO] [stdout]      |
[INFO] [stdout] 1127 |     fn visit_content_seq<'de, V, E>(content: Vec<Content<'de>>, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_map` is never used
[INFO] [stdout]     --> src/serde_content.rs:1138:8
[INFO] [stdout]      |
[INFO] [stdout] 1138 |     fn visit_content_map<'de, V, E>(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1523:16
[INFO] [stdout]      |
[INFO] [stdout] 1521 |     impl<'de, E> ContentDeserializer<'de, E> {
[INFO] [stdout]      |     ---------------------------------------- associated function in this implementation
[INFO] [stdout] 1522 |         /// private API, don't use
[INFO] [stdout] 1523 |         pub fn new(content: Content<'de>) -> Self {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SeqDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1531:12
[INFO] [stdout]      |
[INFO] [stdout] 1531 |     struct SeqDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1538:12
[INFO] [stdout]      |
[INFO] [stdout] 1537 |     impl<'de, E> SeqDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1538 |         fn new(content: Vec<Content<'de>>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1551:12
[INFO] [stdout]      |
[INFO] [stdout] 1547 | /     impl<'de, E> SeqDeserializer<'de, E>
[INFO] [stdout] 1548 | |     where
[INFO] [stdout] 1549 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1550 |       {
[INFO] [stdout] 1551 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1624:12
[INFO] [stdout]      |
[INFO] [stdout] 1624 |     struct MapDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1632:12
[INFO] [stdout]      |
[INFO] [stdout] 1631 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1632 |         fn new(content: Vec<(Content<'de>, Content<'de>)>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1646:12
[INFO] [stdout]      |
[INFO] [stdout] 1642 | /     impl<'de, E> MapDeserializer<'de, E>
[INFO] [stdout] 1643 | |     where
[INFO] [stdout] 1644 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1645 |       {
[INFO] [stdout] 1646 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_pair` is never used
[INFO] [stdout]     --> src/serde_content.rs:1662:12
[INFO] [stdout]      |
[INFO] [stdout] 1661 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ method in this implementation
[INFO] [stdout] 1662 |         fn next_pair(&mut self) -> Option<(Content<'de>, Content<'de>)> {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1790:12
[INFO] [stdout]      |
[INFO] [stdout] 1790 |     struct PairDeserializer<'de, E>(Content<'de>, Content<'de>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1841:12
[INFO] [stdout]      |
[INFO] [stdout] 1841 |     struct PairVisitor<'de, E>(Option<Content<'de>>, Option<Content<'de>>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1885:16
[INFO] [stdout]      |
[INFO] [stdout] 1885 |     pub struct EnumDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1898:16
[INFO] [stdout]      |
[INFO] [stdout] 1894 | /     impl<'de, E> EnumDeserializer<'de, E>
[INFO] [stdout] 1895 | |     where
[INFO] [stdout] 1896 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- associated function in this implementation
[INFO] [stdout] 1897 |       {
[INFO] [stdout] 1898 |           pub fn new(variant: Content<'de>, value: Option<Content<'de>>) -> EnumDeserializer<'de, E> {
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariantDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1927:16
[INFO] [stdout]      |
[INFO] [stdout] 1927 |     pub struct VariantDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InternallyTaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2951:16
[INFO] [stdout]      |
[INFO] [stdout] 2951 |     pub struct InternallyTaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UntaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2986:16
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     pub struct UntaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_single_or_vec2 v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3020:12
[INFO] [stdout]      |
[INFO] [stdout] 3020 | pub struct StrDeserializer<'a, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowedStrDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3045:12
[INFO] [stdout]      |
[INFO] [stdout] 3045 | pub struct BorrowedStrDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3071:12
[INFO] [stdout]      |
[INFO] [stdout] 3071 | pub struct FlatMapDeserializer<'a, 'de: 'a, E>(
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `deserialize_other` is never used
[INFO] [stdout]     --> src/serde_content.rs:3081:8
[INFO] [stdout]      |
[INFO] [stdout] 3077 | / impl<'a, 'de, E> FlatMapDeserializer<'a, 'de, E>
[INFO] [stdout] 3078 | | where
[INFO] [stdout] 3079 | |     E: Error,
[INFO] [stdout]      | |_____________- associated function in this implementation
[INFO] [stdout] 3080 |   {
[INFO] [stdout] 3081 |       fn deserialize_other<V>() -> Result<V, E> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatMapAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3231:8
[INFO] [stdout]      |
[INFO] [stdout] 3231 | struct FlatMapAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlatStructAccess` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3275:8
[INFO] [stdout]      |
[INFO] [stdout] 3275 | struct FlatStructAccess<'a, 'de: 'a, E> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flat_map_take_entry` is never used
[INFO] [stdout]     --> src/serde_content.rs:3317:4
[INFO] [stdout]      |
[INFO] [stdout] 3317 | fn flat_map_take_entry<'de>(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantSeed` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3336:12
[INFO] [stdout]      |
[INFO] [stdout] 3336 | pub struct AdjacentlyTaggedEnumVariantSeed<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdjacentlyTaggedEnumVariantVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:3342:12
[INFO] [stdout]      |
[INFO] [stdout] 3342 | pub struct AdjacentlyTaggedEnumVariantVisitor<F> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `content_as_str` is never used
[INFO] [stdout]    --> src/serde_content.rs:309:12
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn content_as_str<'a>(content: &'a Content<'_>) -> Option<&'a str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:346:16
[INFO] [stdout]     |
[INFO] [stdout] 346 |     pub struct ContentVisitor<'de> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:351:16
[INFO] [stdout]     |
[INFO] [stdout] 350 |     impl<'de> ContentVisitor<'de> {
[INFO] [stdout]     |     ----------------------------- associated function in this implementation
[INFO] [stdout] 351 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContent` is never used
[INFO] [stdout]    --> src/serde_content.rs:571:14
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub enum TagOrContent<'de> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:578:12
[INFO] [stdout]     |
[INFO] [stdout] 578 |     struct TagOrContentVisitor<'de> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serde_content.rs:584:12
[INFO] [stdout]     |
[INFO] [stdout] 583 |     impl<'de> TagOrContentVisitor<'de> {
[INFO] [stdout]     |     ---------------------------------- associated function in this implementation
[INFO] [stdout] 584 |         fn new(name: &'static str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaggedContentVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:868:16
[INFO] [stdout]     |
[INFO] [stdout] 868 |     pub struct TaggedContentVisitor<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagOrContentField` is never used
[INFO] [stdout]    --> src/serde_content.rs:931:14
[INFO] [stdout]     |
[INFO] [stdout] 931 |     pub enum TagOrContentField {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagOrContentFieldVisitor` is never constructed
[INFO] [stdout]    --> src/serde_content.rs:937:16
[INFO] [stdout]     |
[INFO] [stdout] 937 |     pub struct TagOrContentFieldVisitor {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TagContentOtherField` is never used
[INFO] [stdout]     --> src/serde_content.rs:1007:14
[INFO] [stdout]      |
[INFO] [stdout] 1007 |     pub enum TagContentOtherField {
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TagContentOtherFieldVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1014:16
[INFO] [stdout]      |
[INFO] [stdout] 1014 |     pub struct TagContentOtherFieldVisitor {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ContentDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1076:16
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub struct ContentDeserializer<'de, E> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `invalid_type`, `deserialize_integer`, and `deserialize_float` are never used
[INFO] [stdout]     --> src/serde_content.rs:1086:12
[INFO] [stdout]      |
[INFO] [stdout] 1081 | /     impl<'de, E> ContentDeserializer<'de, E>
[INFO] [stdout] 1082 | |     where
[INFO] [stdout] 1083 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1086 |           fn invalid_type(self, exp: &dyn Expected) -> E {
[INFO] [stdout]      |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1090 |           fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1107 |           fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_seq` is never used
[INFO] [stdout]     --> src/serde_content.rs:1127:8
[INFO] [stdout]      |
[INFO] [stdout] 1127 |     fn visit_content_seq<'de, V, E>(content: Vec<Content<'de>>, visitor: V) -> Result<V::Value, E>
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `visit_content_map` is never used
[INFO] [stdout]     --> src/serde_content.rs:1138:8
[INFO] [stdout]      |
[INFO] [stdout] 1138 |     fn visit_content_map<'de, V, E>(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1523:16
[INFO] [stdout]      |
[INFO] [stdout] 1521 |     impl<'de, E> ContentDeserializer<'de, E> {
[INFO] [stdout]      |     ---------------------------------------- associated function in this implementation
[INFO] [stdout] 1522 |         /// private API, don't use
[INFO] [stdout] 1523 |         pub fn new(content: Content<'de>) -> Self {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SeqDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1531:12
[INFO] [stdout]      |
[INFO] [stdout] 1531 |     struct SeqDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1538:12
[INFO] [stdout]      |
[INFO] [stdout] 1537 |     impl<'de, E> SeqDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1538 |         fn new(content: Vec<Content<'de>>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1551:12
[INFO] [stdout]      |
[INFO] [stdout] 1547 | /     impl<'de, E> SeqDeserializer<'de, E>
[INFO] [stdout] 1548 | |     where
[INFO] [stdout] 1549 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1550 |       {
[INFO] [stdout] 1551 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1624:12
[INFO] [stdout]      |
[INFO] [stdout] 1624 |     struct MapDeserializer<'de, E> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1632:12
[INFO] [stdout]      |
[INFO] [stdout] 1631 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ associated function in this implementation
[INFO] [stdout] 1632 |         fn new(content: Vec<(Content<'de>, Content<'de>)>) -> Self {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `end` is never used
[INFO] [stdout]     --> src/serde_content.rs:1646:12
[INFO] [stdout]      |
[INFO] [stdout] 1642 | /     impl<'de, E> MapDeserializer<'de, E>
[INFO] [stdout] 1643 | |     where
[INFO] [stdout] 1644 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- method in this implementation
[INFO] [stdout] 1645 |       {
[INFO] [stdout] 1646 |           fn end(self) -> Result<(), E> {
[INFO] [stdout]      |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_pair` is never used
[INFO] [stdout]     --> src/serde_content.rs:1662:12
[INFO] [stdout]      |
[INFO] [stdout] 1661 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stdout]      |     ------------------------------------ method in this implementation
[INFO] [stdout] 1662 |         fn next_pair(&mut self) -> Option<(Content<'de>, Content<'de>)> {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1790:12
[INFO] [stdout]      |
[INFO] [stdout] 1790 |     struct PairDeserializer<'de, E>(Content<'de>, Content<'de>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1841:12
[INFO] [stdout]      |
[INFO] [stdout] 1841 |     struct PairVisitor<'de, E>(Option<Content<'de>>, Option<Content<'de>>, PhantomData<E>);
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1885:16
[INFO] [stdout]      |
[INFO] [stdout] 1885 |     pub struct EnumDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> src/serde_content.rs:1898:16
[INFO] [stdout]      |
[INFO] [stdout] 1894 | /     impl<'de, E> EnumDeserializer<'de, E>
[INFO] [stdout] 1895 | |     where
[INFO] [stdout] 1896 | |         E: de::Error,
[INFO] [stdout]      | |_____________________- associated function in this implementation
[INFO] [stdout] 1897 |       {
[INFO] [stdout] 1898 |           pub fn new(variant: Content<'de>, value: Option<Content<'de>>) -> EnumDeserializer<'de, E> {
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariantDeserializer` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:1927:16
[INFO] [stdout]      |
[INFO] [stdout] 1927 |     pub struct VariantDeserializer<'de, E>
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InternallyTaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2951:16
[INFO] [stdout]      |
[INFO] [stdout] 2951 |     pub struct InternallyTaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UntaggedUnitVisitor` is never constructed
[INFO] [stdout]     --> src/serde_content.rs:2986:16
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     pub struct UntaggedUnitVisitor<'a> {
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "ff3243161fc93c572d7469d4679e5e5d9dd1da0cd5a9dd647adf598dcf52befb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3243161fc93c572d7469d4679e5e5d9dd1da0cd5a9dd647adf598dcf52befb", kill_on_drop: false }`
[INFO] [stdout] ff3243161fc93c572d7469d4679e5e5d9dd1da0cd5a9dd647adf598dcf52befb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5cee27de072a620ab3146a7f9719d22301ec9adcf4a7dfb43f0ae1a12cb4a81
[INFO] running `Command { std: "docker" "start" "-a" "b5cee27de072a620ab3146a7f9719d22301ec9adcf4a7dfb43f0ae1a12cb4a81", kill_on_drop: false }`
[INFO] [stderr] warning: struct `StrDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3020:12
[INFO] [stderr]      |
[INFO] [stderr] 3020 | pub struct StrDeserializer<'a, E> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BorrowedStrDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3045:12
[INFO] [stderr]      |
[INFO] [stderr] 3045 | pub struct BorrowedStrDeserializer<'de, E> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FlatMapDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3071:12
[INFO] [stderr]      |
[INFO] [stderr] 3071 | pub struct FlatMapDeserializer<'a, 'de: 'a, E>(
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `deserialize_other` is never used
[INFO] [stderr]     --> src/serde_content.rs:3081:8
[INFO] [stderr]      |
[INFO] [stderr] 3077 | / impl<'a, 'de, E> FlatMapDeserializer<'a, 'de, E>
[INFO] [stderr] 3078 | | where
[INFO] [stderr] 3079 | |     E: Error,
[INFO] [stderr]      | |_____________- associated function in this implementation
[INFO] [stderr] 3080 |   {
[INFO] [stderr] 3081 |       fn deserialize_other<V>() -> Result<V, E> {
[INFO] [stderr]      |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FlatMapAccess` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3231:8
[INFO] [stderr]      |
[INFO] [stderr] 3231 | struct FlatMapAccess<'a, 'de: 'a, E> {
[INFO] [stderr]      |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FlatStructAccess` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3275:8
[INFO] [stderr]      |
[INFO] [stderr] 3275 | struct FlatStructAccess<'a, 'de: 'a, E> {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `flat_map_take_entry` is never used
[INFO] [stderr]     --> src/serde_content.rs:3317:4
[INFO] [stderr]      |
[INFO] [stderr] 3317 | fn flat_map_take_entry<'de>(
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AdjacentlyTaggedEnumVariantSeed` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3336:12
[INFO] [stderr]      |
[INFO] [stderr] 3336 | pub struct AdjacentlyTaggedEnumVariantSeed<F> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AdjacentlyTaggedEnumVariantVisitor` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:3342:12
[INFO] [stderr]      |
[INFO] [stderr] 3342 | pub struct AdjacentlyTaggedEnumVariantVisitor<F> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `content_as_str` is never used
[INFO] [stderr]    --> src/serde_content.rs:309:12
[INFO] [stderr]     |
[INFO] [stderr] 309 |     pub fn content_as_str<'a>(content: &'a Content<'_>) -> Option<&'a str> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ContentVisitor` is never constructed
[INFO] [stderr]    --> src/serde_content.rs:346:16
[INFO] [stderr]     |
[INFO] [stderr] 346 |     pub struct ContentVisitor<'de> {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/serde_content.rs:351:16
[INFO] [stderr]     |
[INFO] [stderr] 350 |     impl<'de> ContentVisitor<'de> {
[INFO] [stderr]     |     ----------------------------- associated function in this implementation
[INFO] [stderr] 351 |         pub fn new() -> Self {
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TagOrContent` is never used
[INFO] [stderr]    --> src/serde_content.rs:571:14
[INFO] [stderr]     |
[INFO] [stderr] 571 |     pub enum TagOrContent<'de> {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TagOrContentVisitor` is never constructed
[INFO] [stderr]    --> src/serde_content.rs:578:12
[INFO] [stderr]     |
[INFO] [stderr] 578 |     struct TagOrContentVisitor<'de> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/serde_content.rs:584:12
[INFO] [stderr]     |
[INFO] [stderr] 583 |     impl<'de> TagOrContentVisitor<'de> {
[INFO] [stderr]     |     ---------------------------------- associated function in this implementation
[INFO] [stderr] 584 |         fn new(name: &'static str) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TaggedContentVisitor` is never constructed
[INFO] [stderr]    --> src/serde_content.rs:868:16
[INFO] [stderr]     |
[INFO] [stderr] 868 |     pub struct TaggedContentVisitor<T> {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TagOrContentField` is never used
[INFO] [stderr]    --> src/serde_content.rs:931:14
[INFO] [stderr]     |
[INFO] [stderr] 931 |     pub enum TagOrContentField {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TagOrContentFieldVisitor` is never constructed
[INFO] [stderr]    --> src/serde_content.rs:937:16
[INFO] [stderr]     |
[INFO] [stderr] 937 |     pub struct TagOrContentFieldVisitor {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TagContentOtherField` is never used
[INFO] [stderr]     --> src/serde_content.rs:1007:14
[INFO] [stderr]      |
[INFO] [stderr] 1007 |     pub enum TagContentOtherField {
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TagContentOtherFieldVisitor` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1014:16
[INFO] [stderr]      |
[INFO] [stderr] 1014 |     pub struct TagContentOtherFieldVisitor {
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ContentDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1076:16
[INFO] [stderr]      |
[INFO] [stderr] 1076 |     pub struct ContentDeserializer<'de, E> {
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `invalid_type`, `deserialize_integer`, and `deserialize_float` are never used
[INFO] [stderr]     --> src/serde_content.rs:1086:12
[INFO] [stderr]      |
[INFO] [stderr] 1081 | /     impl<'de, E> ContentDeserializer<'de, E>
[INFO] [stderr] 1082 | |     where
[INFO] [stderr] 1083 | |         E: de::Error,
[INFO] [stderr]      | |_____________________- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 1086 |           fn invalid_type(self, exp: &dyn Expected) -> E {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1090 |           fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1107 |           fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `visit_content_seq` is never used
[INFO] [stderr]     --> src/serde_content.rs:1127:8
[INFO] [stderr]      |
[INFO] [stderr] 1127 |     fn visit_content_seq<'de, V, E>(content: Vec<Content<'de>>, visitor: V) -> Result<V::Value, E>
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `visit_content_map` is never used
[INFO] [stderr]     --> src/serde_content.rs:1138:8
[INFO] [stderr]      |
[INFO] [stderr] 1138 |     fn visit_content_map<'de, V, E>(
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]     --> src/serde_content.rs:1523:16
[INFO] [stderr]      |
[INFO] [stderr] 1521 |     impl<'de, E> ContentDeserializer<'de, E> {
[INFO] [stderr]      |     ---------------------------------------- associated function in this implementation
[INFO] [stderr] 1522 |         /// private API, don't use
[INFO] [stderr] 1523 |         pub fn new(content: Content<'de>) -> Self {
[INFO] [stderr]      |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SeqDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1531:12
[INFO] [stderr]      |
[INFO] [stderr] 1531 |     struct SeqDeserializer<'de, E> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]     --> src/serde_content.rs:1538:12
[INFO] [stderr]      |
[INFO] [stderr] 1537 |     impl<'de, E> SeqDeserializer<'de, E> {
[INFO] [stderr]      |     ------------------------------------ associated function in this implementation
[INFO] [stderr] 1538 |         fn new(content: Vec<Content<'de>>) -> Self {
[INFO] [stderr]      |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `end` is never used
[INFO] [stderr]     --> src/serde_content.rs:1551:12
[INFO] [stderr]      |
[INFO] [stderr] 1547 | /     impl<'de, E> SeqDeserializer<'de, E>
[INFO] [stderr] 1548 | |     where
[INFO] [stderr] 1549 | |         E: de::Error,
[INFO] [stderr]      | |_____________________- method in this implementation
[INFO] [stderr] 1550 |       {
[INFO] [stderr] 1551 |           fn end(self) -> Result<(), E> {
[INFO] [stderr]      |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MapDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1624:12
[INFO] [stderr]      |
[INFO] [stderr] 1624 |     struct MapDeserializer<'de, E> {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]     --> src/serde_content.rs:1632:12
[INFO] [stderr]      |
[INFO] [stderr] 1631 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stderr]      |     ------------------------------------ associated function in this implementation
[INFO] [stderr] 1632 |         fn new(content: Vec<(Content<'de>, Content<'de>)>) -> Self {
[INFO] [stderr]      |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `end` is never used
[INFO] [stderr]     --> src/serde_content.rs:1646:12
[INFO] [stderr]      |
[INFO] [stderr] 1642 | /     impl<'de, E> MapDeserializer<'de, E>
[INFO] [stderr] 1643 | |     where
[INFO] [stderr] 1644 | |         E: de::Error,
[INFO] [stderr]      | |_____________________- method in this implementation
[INFO] [stderr] 1645 |       {
[INFO] [stderr] 1646 |           fn end(self) -> Result<(), E> {
[INFO] [stderr]      |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `next_pair` is never used
[INFO] [stderr]     --> src/serde_content.rs:1662:12
[INFO] [stderr]      |
[INFO] [stderr] 1661 |     impl<'de, E> MapDeserializer<'de, E> {
[INFO] [stderr]      |     ------------------------------------ method in this implementation
[INFO] [stderr] 1662 |         fn next_pair(&mut self) -> Option<(Content<'de>, Content<'de>)> {
[INFO] [stderr]      |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PairDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1790:12
[INFO] [stderr]      |
[INFO] [stderr] 1790 |     struct PairDeserializer<'de, E>(Content<'de>, Content<'de>, PhantomData<E>);
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PairVisitor` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1841:12
[INFO] [stderr]      |
[INFO] [stderr] 1841 |     struct PairVisitor<'de, E>(Option<Content<'de>>, Option<Content<'de>>, PhantomData<E>);
[INFO] [stderr]      |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `EnumDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1885:16
[INFO] [stderr]      |
[INFO] [stderr] 1885 |     pub struct EnumDeserializer<'de, E>
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]     --> src/serde_content.rs:1898:16
[INFO] [stderr]      |
[INFO] [stderr] 1894 | /     impl<'de, E> EnumDeserializer<'de, E>
[INFO] [stderr] 1895 | |     where
[INFO] [stderr] 1896 | |         E: de::Error,
[INFO] [stderr]      | |_____________________- associated function in this implementation
[INFO] [stderr] 1897 |       {
[INFO] [stderr] 1898 |           pub fn new(variant: Content<'de>, value: Option<Content<'de>>) -> EnumDeserializer<'de, E> {
[INFO] [stderr]      |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VariantDeserializer` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:1927:16
[INFO] [stderr]      |
[INFO] [stderr] 1927 |     pub struct VariantDeserializer<'de, E>
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `InternallyTaggedUnitVisitor` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:2951:16
[INFO] [stderr]      |
[INFO] [stderr] 2951 |     pub struct InternallyTaggedUnitVisitor<'a> {
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UntaggedUnitVisitor` is never constructed
[INFO] [stderr]     --> src/serde_content.rs:2986:16
[INFO] [stderr]      |
[INFO] [stderr] 2986 |     pub struct UntaggedUnitVisitor<'a> {
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_single_or_vec2` (lib) generated 39 warnings
[INFO] [stderr] warning: `serde_single_or_vec2` (lib test) generated 39 warnings (39 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_single_or_vec2-677479c7781421d4)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::bool ... ok
[INFO] [stdout] test tests::char ... ok
[INFO] [stdout] test tests::bytes_buf ... ok
[INFO] [stdout] test tests::enm ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::f32 ... ok
[INFO] [stdout] test tests::i16 ... ok
[INFO] [stdout] test tests::f64 ... ok
[INFO] [stdout] test tests::i32 ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::str ... ok
[INFO] [stdout] test tests::rec ... ok
[INFO] [stdout] test tests::some ... ok
[INFO] [stdout] test tests::seq ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] test tests::u64 ... ok
[INFO] [stdout] test tests::unit ... ok
[INFO] [stdout] test tests::u8 ... ok
[INFO] [stdout] test tests::u32 ... ok
[INFO] [stdout] test tests::u16 ... ok
[INFO] [stdout] test tests::i8 ... ok
[INFO] [stdout] test tests::strct ... ok
[INFO] [stdout] test tests::i64 ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_single_or_vec2
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.87s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5cee27de072a620ab3146a7f9719d22301ec9adcf4a7dfb43f0ae1a12cb4a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5cee27de072a620ab3146a7f9719d22301ec9adcf4a7dfb43f0ae1a12cb4a81", kill_on_drop: false }`
[INFO] [stdout] b5cee27de072a620ab3146a7f9719d22301ec9adcf4a7dfb43f0ae1a12cb4a81
