[INFO] updating cached repository https://github.com/avalarin/rust-pipeline
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f940ef3104102719ce59aaa07c8a358f2e5310c
[INFO] testing avalarin/rust-pipeline against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favalarin%2Frust-pipeline" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/avalarin/rust-pipeline on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/avalarin/rust-pipeline already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 890a46e0f92b38e8629165e64088537f3d65c68336cd50ae4ac6e3ad58ad1ee6
[INFO] running `"docker" "start" "-a" "890a46e0f92b38e8629165e64088537f3d65c68336cd50ae4ac6e3ad58ad1ee6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-pipeline v0.1.0 (/opt/rustwide/workdir)
[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]    |                                ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>`
[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]   |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]   |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]   |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "890a46e0f92b38e8629165e64088537f3d65c68336cd50ae4ac6e3ad58ad1ee6"`
[INFO] running `"docker" "rm" "-f" "890a46e0f92b38e8629165e64088537f3d65c68336cd50ae4ac6e3ad58ad1ee6"`
[INFO] [stdout] 890a46e0f92b38e8629165e64088537f3d65c68336cd50ae4ac6e3ad58ad1ee6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4b07dec468a1ee2b30ccecfe58f77e3a2219d3b8c9e594f512e1efc9839afe30
[INFO] running `"docker" "start" "-a" "4b07dec468a1ee2b30ccecfe58f77e3a2219d3b8c9e594f512e1efc9839afe30"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-pipeline v0.1.0 (/opt/rustwide/workdir)
[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]    |                                ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>`
[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]   |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]   |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]   |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "4b07dec468a1ee2b30ccecfe58f77e3a2219d3b8c9e594f512e1efc9839afe30"`
[INFO] running `"docker" "rm" "-f" "4b07dec468a1ee2b30ccecfe58f77e3a2219d3b8c9e594f512e1efc9839afe30"`
[INFO] [stdout] 4b07dec468a1ee2b30ccecfe58f77e3a2219d3b8c9e594f512e1efc9839afe30
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5774575827a2cafbde514c44f3480bc345bc88922cd624d83856a21cb670954
[INFO] running `"docker" "start" "-a" "c5774575827a2cafbde514c44f3480bc345bc88922cd624d83856a21cb670954"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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]    |                                ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T, Arc<Pipeline<T>>) -> Result<T, Box<Error>>`
[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]   |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]   |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]   |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<T>`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[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]    |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pipeline<Context>`
[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]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_pipeline-14d21496c49b218e
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c5774575827a2cafbde514c44f3480bc345bc88922cd624d83856a21cb670954"`
[INFO] running `"docker" "rm" "-f" "c5774575827a2cafbde514c44f3480bc345bc88922cd624d83856a21cb670954"`
[INFO] [stdout] c5774575827a2cafbde514c44f3480bc345bc88922cd624d83856a21cb670954