[INFO] fetching crate serde 1.0.160...
[INFO] testing serde-1.0.160 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate serde 1.0.160 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate serde 1.0.160 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde 1.0.160
[INFO] finished tweaking crates.io crate serde 1.0.160
[INFO] tweaked toml for crates.io crate serde 1.0.160 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f78fcc135f4cf2abc4e660da1ef72471e84db8fa5cf2bede92a27a4413b9efc
[INFO] running `Command { std: "docker" "start" "-a" "1f78fcc135f4cf2abc4e660da1ef72471e84db8fa5cf2bede92a27a4413b9efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f78fcc135f4cf2abc4e660da1ef72471e84db8fa5cf2bede92a27a4413b9efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f78fcc135f4cf2abc4e660da1ef72471e84db8fa5cf2bede92a27a4413b9efc", kill_on_drop: false }`
[INFO] [stdout] 1f78fcc135f4cf2abc4e660da1ef72471e84db8fa5cf2bede92a27a4413b9efc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c662bb4f1bdf11e14e04efcd53085eb50a2e9f18690ddde702e3ae0ad487aad0
[INFO] running `Command { std: "docker" "start" "-a" "c662bb4f1bdf11e14e04efcd53085eb50a2e9f18690ddde702e3ae0ad487aad0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.160 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "c662bb4f1bdf11e14e04efcd53085eb50a2e9f18690ddde702e3ae0ad487aad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c662bb4f1bdf11e14e04efcd53085eb50a2e9f18690ddde702e3ae0ad487aad0", kill_on_drop: false }`
[INFO] [stdout] c662bb4f1bdf11e14e04efcd53085eb50a2e9f18690ddde702e3ae0ad487aad0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7fb2d27bd29cf4ddc7a0ab4afad63f7c17ecbdf6781d4ed13241d787ab97d47
[INFO] running `Command { std: "docker" "start" "-a" "e7fb2d27bd29cf4ddc7a0ab4afad63f7c17ecbdf6781d4ed13241d787ab97d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling serde v1.0.160 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.11s
[INFO] running `Command { std: "docker" "inspect" "e7fb2d27bd29cf4ddc7a0ab4afad63f7c17ecbdf6781d4ed13241d787ab97d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7fb2d27bd29cf4ddc7a0ab4afad63f7c17ecbdf6781d4ed13241d787ab97d47", kill_on_drop: false }`
[INFO] [stdout] e7fb2d27bd29cf4ddc7a0ab4afad63f7c17ecbdf6781d4ed13241d787ab97d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 210de33dee66806a1b66674bf6d977497f67bfe198c08995edd84998e2195539
[INFO] running `Command { std: "docker" "start" "-a" "210de33dee66806a1b66674bf6d977497f67bfe198c08995edd84998e2195539", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde-097a74206ece726c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ser::impls::test_format_u8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde
[INFO] [stdout] 
[INFO] [stdout] running 71 tests
[INFO] [stdout] test src/de/mod.rs - de::IntoDeserializer (line 2241) ... FAILED
[INFO] [stdout] test src/de/mod.rs - de::VariantAccess::newtype_variant_seed (line 2078) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Expected (line 435) ... ok
[INFO] [stdout] test src/de/mod.rs - de::DeserializeSeed (line 619) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Expected (line 460) ... ok
[INFO] [stdout] test src/de/mod.rs - de::DeserializeSeed (line 633) ... ok
[INFO] [stdout] test src/de/mod.rs - de::VariantAccess::struct_variant (line 2181) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Visitor (line 1252) ... ok
[INFO] [stdout] test src/de/mod.rs - de::DeserializeOwned (line 580) ... ok
[INFO] [stdout] test src/de/value.rs - de::value (line 4) ... FAILED
[INFO] [stdout] test src/de/mod.rs - de::Unexpected (line 310) ... ok
[INFO] [stdout] test src/de/mod.rs - de::VariantAccess::unit_variant (line 2038) ... ok
[INFO] [stdout] test src/de/ignored_any.rs - de::ignored_any::IgnoredAny (line 13) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Deserializer::is_human_readable (line 1161) ... ok
[INFO] [stdout] test src/de/mod.rs - de::DeserializeSeed (line 666) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Error::custom (line 303) ... ok
[INFO] [stdout] test src/de/mod.rs - de::Visitor::expecting (line 1293) ... ok
[INFO] [stdout] test src/ser/fmt.rs - ser::fmt::&'amutfmt::Formatter<'b> (line 20) ... FAILED
[INFO] [stdout] test src/de/mod.rs - de::VariantAccess::tuple_variant (line 2134) ... ok
[INFO] [stdout] test src/integer128.rs - integer128::serde_if_integer128 (line 53) ... ok
[INFO] [stdout] test src/integer128.rs - integer128::serde_if_integer128 (line 64) ... ok
[INFO] [stdout] test src/macros.rs - macros::forward_to_deserialize_any (line 14) ... ok
[INFO] [stdout] test src/integer128.rs - integer128::serde_if_integer128 (line 12) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeMap (line 1747) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serialize::serialize (line 224) ... ok
[INFO] [stdout] test src/macros.rs - macros::forward_to_deserialize_any (line 81) ... ok
[INFO] [stdout] test src/ser/impossible.rs - ser::impossible::Impossible (line 18) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeStructVariant (line 1918) ... ok
[INFO] [stdout] test src/macros.rs - macros::forward_to_deserialize_any (line 50) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Error::custom (line 195) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeTuple (line 1544) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeTuple (line 1574) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeTupleStruct (line 1644) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeStruct (line 1858) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::collect_map (line 1307) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeSeq (line 1480) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::collect_seq (line 1259) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::SerializeTupleVariant (line 1689) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::collect_str (line 1358) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_char (line 672) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::is_human_readable (line 1431) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_f32 (line 633) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_bool (line 391) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_f64 (line 651) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_i32 (line 457) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_i16 (line 435) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_i128 (line 494) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_bytes (line 714) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_i64 (line 475) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_newtype_struct (line 886) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_i8 (line 413) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_seq (line 952) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_newtype_variant (line 914) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_map (line 1133) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_some (line 776) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_struct (line 1181) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_tuple_variant (line 1087) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_str (line 690) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_struct_variant (line 1217) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_u32 (line 567) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_u64 (line 585) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_tuple (line 1027) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_u128 (line 604) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_tuple_struct (line 1055) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_u16 (line 545) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_u8 (line 523) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_unit (line 811) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_tuple (line 997) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_none (line 743) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_unit_variant (line 853) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::Serializer::serialize_unit_struct (line 831) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/de/mod.rs - de::IntoDeserializer (line 2241) stdout ----
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]  --> src/de/mod.rs:2246:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Deserialize)]
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this derive macro:
[INFO] [stdout]           serde_derive::Deserialize
[INFO] [stdout] note: `Deserialize` is imported here, but it is only a trait, without a derive macro
[INFO] [stdout]  --> src/de/mod.rs:2243:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `deserialize` found for enum `Setting` in the current scope
[INFO] [stdout]   --> src/de/mod.rs:2256:15
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Setting {
[INFO] [stdout]    | ------------ variant or associated item `deserialize` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |         Self::deserialize(s.into_deserializer())
[INFO] [stdout]    |               ^^^^^^^^^^^ variant or associated item not found in `Setting`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `deserialize`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `Deserialize`
[INFO] [stdout]            candidate #2: `DeserializeSeed`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/de/value.rs - de::value (line 4) stdout ----
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]  --> src/de/value.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Deserialize)]
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this derive macro:
[INFO] [stdout]           serde_derive::Deserialize
[INFO] [stdout] note: `Deserialize` is imported here, but it is only a trait, without a derive macro
[INFO] [stdout]  --> src/de/value.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `deserialize` found for enum `Setting` in the current scope
[INFO] [stdout]   --> src/de/value.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Setting {
[INFO] [stdout]    | ------------ variant or associated item `deserialize` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |         Self::deserialize(s.into_deserializer())
[INFO] [stdout]    |               ^^^^^^^^^^^ variant or associated item not found in `Setting`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `deserialize`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `Deserialize`
[INFO] [stdout]            candidate #2: `DeserializeSeed`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/ser/fmt.rs - ser::fmt::&'amutfmt::Formatter<'b> (line 20) stdout ----
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]  --> src/ser/fmt.rs:24:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Serialize)]
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this derive macro:
[INFO] [stdout]           serde_derive::Serialize
[INFO] [stdout] note: `Serialize` is imported here, but it is only a trait, without a derive macro
[INFO] [stdout]  --> src/ser/fmt.rs:21:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]  --> src/ser/fmt.rs:25:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[serde(rename_all = "kebab-case")]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `serde` is imported here, but it is a crate, not an attribute
[INFO] [stdout]  --> src/ser/fmt.rs:19:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate r#serde;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `serialize` exists for reference `&MessageType`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/ser/fmt.rs:33:14
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub enum MessageType {
[INFO] [stdout]     | -------------------- doesn't satisfy `MessageType: Serialize`
[INFO] [stdout] ...
[INFO] [stdout] 16  |         self.serialize(f)
[INFO] [stdout]     |              ^^^^^^^^^ method cannot be called on `&MessageType` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `MessageType: Serialize`
[INFO] [stdout]             which is required by `&MessageType: Serialize`
[INFO] [stdout] note: the trait `Serialize` must be implemented
[INFO] [stdout]    --> /opt/rustwide/workdir/src/ser/mod.rs:218:1
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub trait Serialize {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `serialize`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Serialize`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/de/mod.rs - de::IntoDeserializer (line 2241)
[INFO] [stdout]     src/de/value.rs - de::value (line 4)
[INFO] [stdout]     src/ser/fmt.rs - ser::fmt::&'amutfmt::Formatter<'b> (line 20)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 68 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.82s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "210de33dee66806a1b66674bf6d977497f67bfe198c08995edd84998e2195539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210de33dee66806a1b66674bf6d977497f67bfe198c08995edd84998e2195539", kill_on_drop: false }`
[INFO] [stdout] 210de33dee66806a1b66674bf6d977497f67bfe198c08995edd84998e2195539
