[INFO] cloning repository https://github.com/ttys3/rust-serde-trait-object-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttys3/rust-serde-trait-object-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-serde-trait-object-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-serde-trait-object-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7873810a35f30f4928f065c7fdd91b92cea4dbe
[INFO] checking ttys3/rust-serde-trait-object-demo/d7873810a35f30f4928f065c7fdd91b92cea4dbe against try#94382f34384023f3d2062a34ccf0bb6b4d44a75a for mutual-coercion
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttys3%2Frust-serde-trait-object-demo" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ttys3/rust-serde-trait-object-demo
[INFO] finished tweaking git repo https://github.com/ttys3/rust-serde-trait-object-demo
[INFO] tweaked toml for git repo https://github.com/ttys3/rust-serde-trait-object-demo written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ttys3/rust-serde-trait-object-demo on toolchain 94382f34384023f3d2062a34ccf0bb6b4d44a75a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ttys3/rust-serde-trait-object-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba8256324610f44d95051bd8cbe5f79da0d63931d293999ac157f002ddb169b6
[INFO] running `Command { std: "docker" "start" "-a" "ba8256324610f44d95051bd8cbe5f79da0d63931d293999ac157f002ddb169b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba8256324610f44d95051bd8cbe5f79da0d63931d293999ac157f002ddb169b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8256324610f44d95051bd8cbe5f79da0d63931d293999ac157f002ddb169b6", kill_on_drop: false }`
[INFO] [stdout] ba8256324610f44d95051bd8cbe5f79da0d63931d293999ac157f002ddb169b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4104ed81217a3aaf787a03ed4fc9240613a6766f991882f7b1dc17a63aeeda43
[INFO] running `Command { std: "docker" "start" "-a" "4104ed81217a3aaf787a03ed4fc9240613a6766f991882f7b1dc17a63aeeda43", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling erased-serde v0.3.29
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking aho-corasick v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking inventory v0.3.11
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking dyn-clone v1.0.13
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.185
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling typetag-impl v0.2.13
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking serde_fmt v1.0.3
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking value-bag-serde1 v1.4.1
[INFO] [stderr]     Checking typetag v0.2.13
[INFO] [stderr]     Checking value-bag v1.4.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking serde-trait-object-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_enum.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_struct_boxed_trait.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/config_struct.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/config_struct.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_struct.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_enum.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_struct_boxed_trait.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/config_struct.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/config_struct.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dyn_clone::DynClone`
[INFO] [stdout]  --> src/config_struct.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use dyn_clone::DynClone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig + Send>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig + Send>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig + Sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig + Sync>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig + Sync>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig + Send>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig + Send>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `?` operator has incompatible types
[INFO] [stdout]   --> src/config_trait_object.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[typetag::serde(tag = "provider")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `config_trait_object::ProviderConfig + Send + Sync`, found trait `config_trait_object::ProviderConfig + Sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `?` operator cannot convert from `Box<dyn config_trait_object::ProviderConfig + Send + Sync>` to `Box<dyn config_trait_object::ProviderConfig + Sync>`
[INFO] [stdout]    = note: expected struct `Box<dyn config_trait_object::ProviderConfig + Sync>`
[INFO] [stdout]               found struct `Box<dyn config_trait_object::ProviderConfig + Send + Sync>`
[INFO] [stdout]    = note: this error originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut cfg = config_enum::Config::from_str().unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut cfg = config_struct_boxed_trait::Config::from_str().unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-trait-object-demo` (bin "serde-trait-object-demo" test) due to 3 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut cfg = config_enum::Config::from_str().unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut cfg = config_struct_boxed_trait::Config::from_str().unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-trait-object-demo` (bin "serde-trait-object-demo") due to 3 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4104ed81217a3aaf787a03ed4fc9240613a6766f991882f7b1dc17a63aeeda43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4104ed81217a3aaf787a03ed4fc9240613a6766f991882f7b1dc17a63aeeda43", kill_on_drop: false }`
[INFO] [stdout] 4104ed81217a3aaf787a03ed4fc9240613a6766f991882f7b1dc17a63aeeda43
