[INFO] fetching crate serde_tagged 0.2.0...
[INFO] checking serde_tagged-0.2.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate serde_tagged 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate serde_tagged 0.2.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_tagged 0.2.0
[INFO] finished tweaking crates.io crate serde_tagged 0.2.0
[INFO] tweaked toml for crates.io crate serde_tagged 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] [stderr]       Adding erased-serde v0.3.31 (latest: v0.4.4)
[INFO] [stderr]       Adding ordered-float v1.1.1 (latest: v4.2.0)
[INFO] [stderr]       Adding serde-value v0.5.3 (latest: v0.7.0)
[INFO] [stderr]       Adding serde_bytes v0.10.5 (latest: v0.11.14)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_bytes v0.10.5
[INFO] [stderr]   Downloaded serde-value v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7e2f5376574ed9c96409118052f688487baeaae10dc8ce8280cde70ebc1b012
[INFO] running `Command { std: "docker" "start" "-a" "b7e2f5376574ed9c96409118052f688487baeaae10dc8ce8280cde70ebc1b012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7e2f5376574ed9c96409118052f688487baeaae10dc8ce8280cde70ebc1b012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7e2f5376574ed9c96409118052f688487baeaae10dc8ce8280cde70ebc1b012", kill_on_drop: false }`
[INFO] [stdout] b7e2f5376574ed9c96409118052f688487baeaae10dc8ce8280cde70ebc1b012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aea98a73923e590a45341d494f780295c1d59ff392c4611c7c0969b18c88a55
[INFO] running `Command { std: "docker" "start" "-a" "8aea98a73923e590a45341d494f780295c1d59ff392c4611c7c0969b18c88a55", kill_on_drop: false }`
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]     Checking serde_tagged v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/adj/map.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/map.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/adj/struc.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/struc.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/tuple.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/external.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/internal.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/internal.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/de/internal.rs:161:53
[INFO] [stdout]     |
[INFO] [stdout] 161 |         use serde::de::value::SeqAccessDeserializer;;
[INFO] [stdout]     |                                                     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/de/seed.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/seed.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `erased_serde` is imported redundantly
[INFO] [stdout]    --> src/de/seed.rs:378:9
[INFO] [stdout]     |
[INFO] [stdout] 378 |     use erased_serde;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:69:1
[INFO] [stdout]     |
[INFO] [stdout] 69  | extern crate erased_serde;
[INFO] [stdout]     | -------------------------- the item `erased_serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/de/seed.rs:379:9
[INFO] [stdout]     |
[INFO] [stdout] 379 |     use serde;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/map.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/struc.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/tuple.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/external.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/ser/internal.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | use serde;
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/mod.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/erased.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `erased_serde` is imported redundantly
[INFO] [stdout]   --> src/util/erased.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use erased_serde;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | extern crate erased_serde;
[INFO] [stdout]    | -------------------------- the item `erased_serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/ser/forward.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/util/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:399:36
[INFO] [stdout]     |
[INFO] [stdout] 399 |     pub struct BoxFnMutSeed<V>(Box<FnMutSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 399 |     pub struct BoxFnMutSeed<V>(Box<dyn FnMutSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:385:31
[INFO] [stdout]     |
[INFO] [stdout] 385 |         : for<'de> FnMut(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 385 |         : for<'de> FnMut(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:453:33
[INFO] [stdout]     |
[INFO] [stdout] 453 |     pub struct BoxFnSeed<V>(Box<FnSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 453 |     pub struct BoxFnSeed<V>(Box<dyn FnSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:439:28
[INFO] [stdout]     |
[INFO] [stdout] 439 |         : for<'de> Fn(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 |         : for<'de> Fn(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:390:32
[INFO] [stdout]     |
[INFO] [stdout] 390 |         F: for<'de> FnMut(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 390 |         F: for<'de> FnMut(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:444:29
[INFO] [stdout]     |
[INFO] [stdout] 444 |         F: for<'de> Fn(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 444 |         F: for<'de> Fn(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:418:26
[INFO] [stdout]     |
[INFO] [stdout] 418 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 418 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:430:26
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:472:26
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:484:26
[INFO] [stdout]     |
[INFO] [stdout] 484 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 484 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stdout] warning: 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:125:31
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl<'a> serde::Serialize for Stored + 'a {
[INFO] [stdout]     |                               ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl<'a> serde::Serialize for dyn Stored + 'a {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:140:43
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<'de> serde::Deserialize<'de> for Box<Stored> {
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<'de> serde::Deserialize<'de> for Box<dyn Stored> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:146:36
[INFO] [stdout]     |
[INFO] [stdout] 146 |     type RegSeedFn = BoxFnSeed<Box<TypeId>>;
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 |     type RegSeedFn = BoxFnSeed<Box<dyn TypeId>>;
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:155:18
[INFO] [stdout]     |
[INFO] [stdout] 155 |         de: &mut erased_serde::Deserializer<'de>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 155 |         de: &mut dyn erased_serde::Deserializer<'de>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:156:21
[INFO] [stdout]     |
[INFO] [stdout] 156 |     ) -> Result<Box<TypeId>, erased_serde::Error> {
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 156 |     ) -> Result<Box<dyn TypeId>, erased_serde::Error> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 |         de: &mut erased_serde::Deserializer<'de>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 |         de: &mut dyn erased_serde::Deserializer<'de>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |     ) -> Result<Box<TypeId>, erased_serde::Error> {
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     ) -> Result<Box<dyn TypeId>, erased_serde::Error> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:183:22
[INFO] [stdout]     |
[INFO] [stdout] 183 |     type Value = Box<TypeId>;
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     type Value = Box<dyn TypeId>;
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/deserialize.rs:210:22
[INFO] [stdout]     |
[INFO] [stdout] 210 |     type Value = Box<TypeId>;
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 210 |     type Value = Box<dyn TypeId>;
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:166:62
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub type TypeRegistry = BTreeMap<&'static str, BoxFnSeed<Box<Stored>>>;
[INFO] [stdout]     |                                                              ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub type TypeRegistry = BTreeMap<&'static str, BoxFnSeed<Box<dyn Stored>>>;
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:191:28
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn a<'de>(de: &mut Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn a<'de>(de: &mut dyn Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:191:61
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn a<'de>(de: &mut Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                                                             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn a<'de>(de: &mut Deserializer<'de>) -> Result<Box<dyn Stored>, Error> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:196:28
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn b<'de>(de: &mut Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn b<'de>(de: &mut dyn Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:196:61
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn b<'de>(de: &mut Deserializer<'de>) -> Result<Box<Stored>, Error> {
[INFO] [stdout]     |                                                             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn b<'de>(de: &mut Deserializer<'de>) -> Result<Box<dyn Stored>, Error> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/adj/map.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/map.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/adj/struc.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/struc.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/adj/tuple.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/external.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/de/internal.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/internal.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/de/internal.rs:161:53
[INFO] [stdout]     |
[INFO] [stdout] 161 |         use serde::de::value::SeqAccessDeserializer;;
[INFO] [stdout]     |                                                     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/de/seed.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/de/seed.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `erased_serde` is imported redundantly
[INFO] [stdout]    --> src/de/seed.rs:378:9
[INFO] [stdout]     |
[INFO] [stdout] 378 |     use erased_serde;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:69:1
[INFO] [stdout]     |
[INFO] [stdout] 69  | extern crate erased_serde;
[INFO] [stdout]     | -------------------------- the item `erased_serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/de/seed.rs:379:9
[INFO] [stdout]     |
[INFO] [stdout] 379 |     use serde;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/map.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/struc.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/adj/tuple.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/external.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/ser/internal.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | use serde;
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/ser/mod.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> examples/trait_objects.rs:136:65
[INFO] [stdout]     |
[INFO] [stdout] 136 |         serde_tagged::ser::external::serialize(serializer, self.type_id(), &SerializeErased(self))
[INFO] [stdout]     |                                                                 ^^^^^^^ multiple `type_id` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `Any`
[INFO] [stdout]    --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/any.rs:136:5
[INFO] [stdout] note: candidate #2 is defined in the trait `TypeId`
[INFO] [stdout]    --> examples/trait_objects.rs:65:5
[INFO] [stdout]     |
[INFO] [stdout] 65  |     fn type_id(&self) -> &'static str;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 136 |         serde_tagged::ser::external::serialize(serializer, Any::type_id(&self), &SerializeErased(self))
[INFO] [stdout]     |                                                            ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 136 |         serde_tagged::ser::external::serialize(serializer, TypeId::type_id(&self), &SerializeErased(self))
[INFO] [stdout]     |                                                            ~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/erased.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `erased_serde` is imported redundantly
[INFO] [stdout]   --> src/util/erased.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use erased_serde;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | extern crate erased_serde;
[INFO] [stdout]    | -------------------------- the item `erased_serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/ser/forward.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/util/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/util/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std;
[INFO] [stdout]    |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:212:20
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let ser_a: Box<Stored> = a.clone();
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let ser_a: Box<dyn Stored> = a.clone();
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:213:20
[INFO] [stdout]     |
[INFO] [stdout] 213 |     let ser_b: Box<Stored> = b.clone();
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 |     let ser_b: Box<dyn Stored> = b.clone();
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:214:20
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let ser_c: Box<Stored> = c.clone();
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let ser_c: Box<dyn Stored> = c.clone();
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:254:19
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let de_a: Box<Stored> = serde_json::from_str(&ser_a).unwrap();
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let de_a: Box<dyn Stored> = serde_json::from_str(&ser_a).unwrap();
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:255:19
[INFO] [stdout]     |
[INFO] [stdout] 255 |     let de_b: Box<Stored> = serde_json::from_str(&ser_b).unwrap();
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 255 |     let de_b: Box<dyn Stored> = serde_json::from_str(&ser_b).unwrap();
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> examples/trait_objects.rs:256:19
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let de_c: Box<Stored> = serde_json::from_str(&ser_c).unwrap();
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let de_c: Box<dyn Stored> = serde_json::from_str(&ser_c).unwrap();
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:399:36
[INFO] [stdout]     |
[INFO] [stdout] 399 |     pub struct BoxFnMutSeed<V>(Box<FnMutSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 399 |     pub struct BoxFnMutSeed<V>(Box<dyn FnMutSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:385:31
[INFO] [stdout]     |
[INFO] [stdout] 385 |         : for<'de> FnMut(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 385 |         : for<'de> FnMut(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:453:33
[INFO] [stdout]     |
[INFO] [stdout] 453 |     pub struct BoxFnSeed<V>(Box<FnSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 453 |     pub struct BoxFnSeed<V>(Box<dyn FnSeed<V, Output = Result<V, erased_serde::Error>> + Sync>);
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:439:28
[INFO] [stdout]     |
[INFO] [stdout] 439 |         : for<'de> Fn(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 |         : for<'de> Fn(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_tagged` (example "trait_objects") due to 2 previous errors; 13 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:390:32
[INFO] [stdout]     |
[INFO] [stdout] 390 |         F: for<'de> FnMut(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 390 |         F: for<'de> FnMut(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:444:29
[INFO] [stdout]     |
[INFO] [stdout] 444 |         F: for<'de> Fn(&mut erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 444 |         F: for<'de> Fn(&mut dyn erased_serde::Deserializer<'de>) -> Result<V, erased_serde::Error>,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_bytes` is imported redundantly
[INFO] [stdout]     --> tests/value.rs:1380:13
[INFO] [stdout]      |
[INFO] [stdout] 6    | extern crate serde_bytes;
[INFO] [stdout]      | ------------------------- the item `serde_bytes` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 1380 |         use serde_bytes;
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> tests/json.rs:1890:13
[INFO] [stdout]      |
[INFO] [stdout] 14   | extern crate serde_json;
[INFO] [stdout]      | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 1890 |         use serde_json;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> tests/json.rs:2008:13
[INFO] [stdout]      |
[INFO] [stdout] 14   | extern crate serde_json;
[INFO] [stdout]      | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 2008 |         use serde_json;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> tests/json.rs:2128:13
[INFO] [stdout]      |
[INFO] [stdout] 14   | extern crate serde_json;
[INFO] [stdout]      | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 2128 |         use serde_json;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> tests/json.rs:2437:13
[INFO] [stdout]      |
[INFO] [stdout] 14   | extern crate serde_json;
[INFO] [stdout]      | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 2437 |         use serde_json;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]     --> tests/json.rs:2849:13
[INFO] [stdout]      |
[INFO] [stdout] 14   | extern crate serde_json;
[INFO] [stdout]      | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 2849 |         use serde_json;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:418:26
[INFO] [stdout]     |
[INFO] [stdout] 418 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 418 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:430:26
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:472:26
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de/seed.rs:484:26
[INFO] [stdout]     |
[INFO] [stdout] 484 |             let mut de = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 484 |             let mut de = <dyn erased_serde::Deserializer>::erase(deserializer);
[INFO] [stdout]     |                          ++++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8aea98a73923e590a45341d494f780295c1d59ff392c4611c7c0969b18c88a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aea98a73923e590a45341d494f780295c1d59ff392c4611c7c0969b18c88a55", kill_on_drop: false }`
[INFO] [stdout] 8aea98a73923e590a45341d494f780295c1d59ff392c4611c7c0969b18c88a55
[INFO] checking serde_tagged-0.2.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate serde_tagged 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate serde_tagged 0.2.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_tagged 0.2.0
[INFO] finished tweaking crates.io crate serde_tagged 0.2.0
[INFO] tweaked toml for crates.io crate serde_tagged 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f15baa72e9125acf6a03f67793d0700ebc84ccebcbb3746cc7b2291bb87bea5
[INFO] running `Command { std: "docker" "start" "-a" "2f15baa72e9125acf6a03f67793d0700ebc84ccebcbb3746cc7b2291bb87bea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f15baa72e9125acf6a03f67793d0700ebc84ccebcbb3746cc7b2291bb87bea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f15baa72e9125acf6a03f67793d0700ebc84ccebcbb3746cc7b2291bb87bea5", kill_on_drop: false }`
[INFO] [stdout] 2f15baa72e9125acf6a03f67793d0700ebc84ccebcbb3746cc7b2291bb87bea5
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab45fb906d7fdc1340fe27c049f9044f2798fb3601e4b8a472d96f28ac7ea33
[INFO] running `Command { std: "docker" "start" "-a" "2ab45fb906d7fdc1340fe27c049f9044f2798fb3601e4b8a472d96f28ac7ea33", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "2ab45fb906d7fdc1340fe27c049f9044f2798fb3601e4b8a472d96f28ac7ea33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab45fb906d7fdc1340fe27c049f9044f2798fb3601e4b8a472d96f28ac7ea33", kill_on_drop: false }`
[INFO] [stdout] 2ab45fb906d7fdc1340fe27c049f9044f2798fb3601e4b8a472d96f28ac7ea33