[INFO] updating cached repository https://github.com/avalarin/rust-pipeline
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f940ef3104102719ce59aaa07c8a358f2e5310c
[INFO] testing avalarin/rust-pipeline/5f940ef3104102719ce59aaa07c8a358f2e5310c against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favalarin%2Frust-pipeline" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/avalarin/rust-pipeline on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/avalarin/rust-pipeline
[INFO] finished tweaking git repo https://github.com/avalarin/rust-pipeline
[INFO] tweaked toml for git repo https://github.com/avalarin/rust-pipeline written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/avalarin/rust-pipeline already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a3a251686afa75fb5822e978106cae4e5031b555bb325370f2817f0de3557b4
[INFO] running `Command { std: "docker" "start" "-a" "8a3a251686afa75fb5822e978106cae4e5031b555bb325370f2817f0de3557b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a3a251686afa75fb5822e978106cae4e5031b555bb325370f2817f0de3557b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a3a251686afa75fb5822e978106cae4e5031b555bb325370f2817f0de3557b4", kill_on_drop: false }`
[INFO] [stdout] 8a3a251686afa75fb5822e978106cae4e5031b555bb325370f2817f0de3557b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 326deed639cf645ac7b9cb86adb5402d7768ecf7e95be7572cc24f5fbae35e80
[INFO] running `Command { std: "docker" "start" "-a" "326deed639cf645ac7b9cb86adb5402d7768ecf7e95be7572cc24f5fbae35e80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-pipeline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = Fn(T, Arc<dyn Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:73
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                                                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<dyn Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     next: Arc<Pipeline<T>>
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     next: Arc<Pipeline<T>>
[INFO] [stdout] 12 +     next: Arc<dyn Pipeline<T>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 23 + fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 23 + fn a(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:30:77
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 30 + fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 30 + fn b(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/builder.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stdout] 21 +     pub fn build(&self) -> Arc<dyn Pipeline<T>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:7:49
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 -     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stdout] 7 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:16:58
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stdout] 16 +     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<dyn Pipeline<T>>) -> Self {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:22:49
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout] 22 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout] 30 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "326deed639cf645ac7b9cb86adb5402d7768ecf7e95be7572cc24f5fbae35e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "326deed639cf645ac7b9cb86adb5402d7768ecf7e95be7572cc24f5fbae35e80", kill_on_drop: false }`
[INFO] [stdout] 326deed639cf645ac7b9cb86adb5402d7768ecf7e95be7572cc24f5fbae35e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f006bd4b2923ad85c974283601f1e57a3036d503aa00ba51258e92c7efbfb70
[INFO] running `Command { std: "docker" "start" "-a" "5f006bd4b2923ad85c974283601f1e57a3036d503aa00ba51258e92c7efbfb70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-pipeline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = Fn(T, Arc<dyn Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:4:73
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                                                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stdout] 4 + pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<dyn Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     next: Arc<Pipeline<T>>
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     next: Arc<Pipeline<T>>
[INFO] [stdout] 12 +     next: Arc<dyn Pipeline<T>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 23 + fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 23 + fn a(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:30:77
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 30 + fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout] 30 + fn b(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/builder.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stdout] 21 +     pub fn build(&self) -> Arc<dyn Pipeline<T>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/types.rs:7:49
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 -     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stdout] 7 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:16:58
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stdout] 16 +     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<dyn Pipeline<T>>) -> Self {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:22:49
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout] 22 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stdout] 30 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "5f006bd4b2923ad85c974283601f1e57a3036d503aa00ba51258e92c7efbfb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f006bd4b2923ad85c974283601f1e57a3036d503aa00ba51258e92c7efbfb70", kill_on_drop: false }`
[INFO] [stdout] 5f006bd4b2923ad85c974283601f1e57a3036d503aa00ba51258e92c7efbfb70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbcea8865e130460a0524e72e78c30adff163db3e8cfe2bab2028ffcd7254b44
[INFO] running `Command { std: "docker" "start" "-a" "fbcea8865e130460a0524e72e78c30adff163db3e8cfe2bab2028ffcd7254b44", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types.rs:4:32
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr] 4 + pub type PipelineFunction<T> = dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types.rs:4:42
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr]   |                                          ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr] 4 + pub type PipelineFunction<T> = Fn(T, Arc<dyn Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types.rs:4:73
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr]   |                                                                         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 - pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>;
[INFO] [stderr] 4 + pub type PipelineFunction<T> = Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<dyn Error>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 |     next: Arc<Pipeline<T>>
[INFO] [stderr]    |               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 12 -     next: Arc<Pipeline<T>>
[INFO] [stderr] 12 +     next: Arc<dyn Pipeline<T>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:23:77
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    |                                                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr] 23 + fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 23 - fn a(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr] 23 + fn a(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:30:77
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    |                                                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr] 30 + fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<dyn Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:30:34
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 30 - fn b(context: Context, next: Arc<Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr] 30 + fn b(context: Context, next: Arc<dyn Pipeline<Context>>) -> Result<Context, Box<Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:21:32
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 21 -     pub fn build(&self) -> Arc<Pipeline<T>> {
[INFO] [stderr] 21 +     pub fn build(&self) -> Arc<dyn Pipeline<T>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types.rs:7:49
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stderr]   |                                                 ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 7 -     fn call(&self, context: T) -> Result<T, Box<Error>>;
[INFO] [stderr] 7 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types.rs:16:58
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 -     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<Pipeline<T>>) -> Self {
[INFO] [stderr] 16 +     pub fn new(func: Arc<PipelineFunction<T>>, next: Arc<dyn Pipeline<T>>) -> Self {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types.rs:22:49
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stderr]    |                                                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 22 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stderr] 22 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types.rs:30:49
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stderr]    |                                                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 30 -     fn call(&self, context: T) -> Result<T, Box<Error>> {
[INFO] [stderr] 30 +     fn call(&self, context: T) -> Result<T, Box<dyn Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-pipeline` (bin "rust-pipeline" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_pipeline-b62139a31d743c3a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fbcea8865e130460a0524e72e78c30adff163db3e8cfe2bab2028ffcd7254b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcea8865e130460a0524e72e78c30adff163db3e8cfe2bab2028ffcd7254b44", kill_on_drop: false }`
[INFO] [stdout] fbcea8865e130460a0524e72e78c30adff163db3e8cfe2bab2028ffcd7254b44