[INFO] cloning repository https://github.com/hdoordt/pychan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hdoordt/pychan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdoordt%2Fpychan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdoordt%2Fpychan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a0877ff4b7f869fcc574060a6d19ada90e22640
[INFO] checking hdoordt/pychan against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdoordt%2Fpychan" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hdoordt/pychan
[INFO] finished tweaking git repo https://github.com/hdoordt/pychan
[INFO] tweaked toml for git repo https://github.com/hdoordt/pychan written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hdoordt/pychan on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hdoordt/pychan 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b68d6bb21844689132ee998c294795cc263d8aa488d5b3cea68831d9bc05efec
[INFO] running `Command { std: "docker" "start" "-a" "b68d6bb21844689132ee998c294795cc263d8aa488d5b3cea68831d9bc05efec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b68d6bb21844689132ee998c294795cc263d8aa488d5b3cea68831d9bc05efec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68d6bb21844689132ee998c294795cc263d8aa488d5b3cea68831d9bc05efec", kill_on_drop: false }`
[INFO] [stdout] b68d6bb21844689132ee998c294795cc263d8aa488d5b3cea68831d9bc05efec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaed8079dd5c9ec6fcfddb8afca5f1158867aa4d3ef53878926ce1deea9a1cf8
[INFO] running `Command { std: "docker" "start" "-a" "aaed8079dd5c9ec6fcfddb8afca5f1158867aa4d3ef53878926ce1deea9a1cf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling pyo3-build-config v0.22.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.22.0
[INFO] [stderr]    Compiling pyo3-ffi v0.22.0
[INFO] [stderr]    Compiling pyo3 v0.22.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling pyo3-macros v0.22.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking pychan v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<(PyBytesSender, PyBytesReader), Infallible>
[INFO] [stdout]  --> src/py.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn bytes_chan(capacity: usize) -> (PyBytesSender, PyBytesReader) {
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:14:70
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn chan_send(mut sender: PyBytesSender, bytes: Py<PyBytes>) -> PyResult<()> {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 | async fn sender_close(mut sender: PyBytesSender) -> PyResult<()> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | async fn chan_read(mut reader: PyBytesReader, bytes: usize) -> PyResult<Py<PyBytes>> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pychan` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<(PyBytesSender, PyBytesReader), Infallible>
[INFO] [stdout]  --> src/py.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn bytes_chan(capacity: usize) -> (PyBytesSender, PyBytesReader) {
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:14:70
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn chan_send(mut sender: PyBytesSender, bytes: Py<PyBytes>) -> PyResult<()> {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 | async fn sender_close(mut sender: PyBytesSender) -> PyResult<()> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::coroutine::Coroutine, Infallible>
[INFO] [stdout]   --> src/py.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | async fn chan_read(mut reader: PyBytesReader, bytes: usize) -> PyResult<Py<PyBytes>> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pychan` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "aaed8079dd5c9ec6fcfddb8afca5f1158867aa4d3ef53878926ce1deea9a1cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaed8079dd5c9ec6fcfddb8afca5f1158867aa4d3ef53878926ce1deea9a1cf8", kill_on_drop: false }`
[INFO] [stdout] aaed8079dd5c9ec6fcfddb8afca5f1158867aa4d3ef53878926ce1deea9a1cf8