[INFO] cloning repository https://github.com/pratikbhadane24/ferro-io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pratikbhadane24/ferro-io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpratikbhadane24%2Fferro-io", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpratikbhadane24%2Fferro-io'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26c997d68c2c38728f8fc36b5207498853353ac9
[INFO] checking pratikbhadane24/ferro-io against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpratikbhadane24%2Fferro-io" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pratikbhadane24/ferro-io
[INFO] finished tweaking git repo https://github.com/pratikbhadane24/ferro-io
[INFO] tweaked toml for git repo https://github.com/pratikbhadane24/ferro-io written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pratikbhadane24/ferro-io on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pratikbhadane24/ferro-io 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3
[INFO] running `Command { std: "docker" "start" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.5
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling pyo3-build-config v0.28.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking tokio v1.51.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.28.3
[INFO] [stderr]    Compiling pyo3-ffi v0.28.3
[INFO] [stderr]    Compiling pyo3 v0.28.3
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]    Compiling pyo3-macros v0.28.3
[INFO] [stderr]     Checking pyo3-async-runtimes v0.28.0
[INFO] [stderr]     Checking ferro-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:69:70
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn sleep_many(&self, py: Python<'_>, count: u64, millis: u64) -> PyResult<Vec<u64>> {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:95:66
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn run_concurrent(&self, py: Python<'_>, items: Vec<u64>) -> PyResult<Vec<u64>> {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:118:81
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn map_blocking(&self, py: Python<'_>, items: Vec<u64>, iterations: u64) -> PyResult<Vec<u64>> {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:155:10
[INFO] [stdout]     |
[INFO] [stdout] 155 |     ) -> PyResult<Bound<'py, PyList>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:216:72
[INFO] [stdout]     |
[INFO] [stdout] 216 |     fn run_coroutine(&self, py: Python<'_>, coro: Bound<'_, PyAny>) -> PyResult<Py<PyAny>> {
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:236:47
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn async_sleep(py: Python<'_>, delay: f64) -> PyResult<Bound<'_, PyAny>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferro-io` (lib test) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:69:70
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn sleep_many(&self, py: Python<'_>, count: u64, millis: u64) -> PyResult<Vec<u64>> {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:95:66
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn run_concurrent(&self, py: Python<'_>, items: Vec<u64>) -> PyResult<Vec<u64>> {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:118:81
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn map_blocking(&self, py: Python<'_>, items: Vec<u64>, iterations: u64) -> PyResult<Vec<u64>> {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:155:10
[INFO] [stdout]     |
[INFO] [stdout] 155 |     ) -> PyResult<Bound<'py, PyList>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:216:72
[INFO] [stdout]     |
[INFO] [stdout] 216 |     fn run_coroutine(&self, py: Python<'_>, coro: Bound<'_, PyAny>) -> PyResult<Py<PyAny>> {
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]    --> src/lib.rs:236:47
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn async_sleep(py: Python<'_>, delay: f64) -> PyResult<Bound<'_, PyAny>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferro-io` (lib) due to 6 previous errors
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: `ferro-io` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3", kill_on_drop: false }`
[INFO] [stdout] 15fba5c9e4f4b20209a84c049f0f5a5725802aefe1dfb94591cbd5e7d74c95f3
