[INFO] fetching crate ethercrab 0.5.7...
[INFO] testing ethercrab-0.5.7 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate ethercrab 0.5.7 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ethercrab 0.5.7
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ethercrab 0.5.7
[INFO] tweaked toml for crates.io crate ethercrab 0.5.7 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ethercrab 0.5.7 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ethercrab 0.5.7 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48af69524fdc8a807512559394c1d9ca7102d600558cf6e4ecde7ff95ecc5c32
[INFO] running `Command { std: "docker" "start" "-a" "48af69524fdc8a807512559394c1d9ca7102d600558cf6e4ecde7ff95ecc5c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48af69524fdc8a807512559394c1d9ca7102d600558cf6e4ecde7ff95ecc5c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48af69524fdc8a807512559394c1d9ca7102d600558cf6e4ecde7ff95ecc5c32", kill_on_drop: false }`
[INFO] [stdout] 48af69524fdc8a807512559394c1d9ca7102d600558cf6e4ecde7ff95ecc5c32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96a5939e4e0f62435e93e2e94c45b7bdca261a290e4f67dbab7c53e04b12b6f
[INFO] running `Command { std: "docker" "start" "-a" "b96a5939e4e0f62435e93e2e94c45b7bdca261a290e4f67dbab7c53e04b12b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling half v2.5.0
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling clap_builder v4.5.32
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[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling embassy-time-queue-driver v0.1.0
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling embassy-time-driver v0.1.0
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling io-uring v0.6.4
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling async-lock v3.4.0
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.13
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling embassy-time v0.3.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap v4.5.32
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling atomic_enum v0.3.0
[INFO] [stderr]    Compiling sealed v0.5.0
[INFO] [stderr]    Compiling polling v3.7.4
[INFO] [stderr]    Compiling timerfd v1.6.0
[INFO] [stderr]    Compiling async-io v2.4.0
[INFO] [stderr]    Compiling smlang-macros v0.6.0
[INFO] [stderr]    Compiling smlang v0.6.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling ethercrab-wire-derive v0.2.0
[INFO] [stderr]    Compiling ethercrab-wire v0.2.0
[INFO] [stderr]    Compiling ethercrab v0.5.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/std/io_uring.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{io, os::fd::AsRawFd, sync::Arc, thread, time::Instant};
[INFO] [stdout]   |                                           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/dc.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / async fn latch_dc_times(
[INFO] [stdout] 19 | |     maindevice: &MainDevice<'_>,
[INFO] [stdout] 20 | |     subdevices: &mut [SubDevice],
[INFO] [stdout] 21 | | ) -> Result<(), Error> {
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: EtherCrabWireRead` will fail
[INFO] [stdout]   --> src/dc.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .send_receive(maindevice, 0u32)
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .send_receive::<()>(maindevice, 0u32)
[INFO] [stdout]    |                      ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/eeprom/device_reader.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     async fn read_chunk(
[INFO] [stdout] 38 | |         &mut self,
[INFO] [stdout] 39 | |         start_word: u16,
[INFO] [stdout] 40 | |     ) -> Result<impl core::ops::Deref<Target = [u8]>, Error> {
[INFO] [stdout]    | |____________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: EtherCrabWireRead` will fail
[INFO] [stdout]   --> src/eeprom/device_reader.rs:42:14
[INFO] [stdout]    |
[INFO] [stdout] 42 |             .send_receive(self.maindevice, SiiRequest::read(start_word))
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]    |
[INFO] [stdout] 42 |             .send_receive::<()>(self.maindevice, SiiRequest::read(start_word))
[INFO] [stdout]    |                          ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> src/timer_factory.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn timeout(self, timeout: Duration) -> TimeoutFuture<impl Future<Output = Result<O, Error>>>;
[INFO] [stdout]    |                                            ----------------------------------------------------- return type from trait method defined here
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn timeout(self, timeout: Duration) -> TimeoutFuture<T> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]    = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]    = note: `#[warn(refining_impl_trait_internal)]` (part of `#[warn(refining_impl_trait)]`) on by default
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 29 -     fn timeout(self, timeout: Duration) -> TimeoutFuture<T> {
[INFO] [stdout] 29 +     fn timeout(self, timeout: Duration) -> TimeoutFuture<impl Future<Output = Result<O, error::Error>>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/pdu_loop/storage.rs:150:15
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn as_ref(&self) -> PduStorageRef {
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn as_ref(&self) -> PduStorageRef<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/subdevice/mod.rs:478:27
[INFO] [stdout]     |
[INFO] [stdout] 478 |     async fn coe_response(&self, read_mailbox: &Mailbox) -> Result<ReceivedPdu, Error> {
[INFO] [stdout]     |                           ^^^^^ the lifetime is elided here        ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 478 |     async fn coe_response(&self, read_mailbox: &Mailbox) -> Result<ReceivedPdu<'_>, Error> {
[INFO] [stdout]     |                                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/subdevice/mod.rs:521:70
[INFO] [stdout]     |
[INFO] [stdout] 521 |     async fn send_coe_service<R>(&'a self, request: R) -> Result<(R, ReceivedPdu), Error>
[INFO] [stdout]     |                                   -- the lifetime is named here      ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 521 |     async fn send_coe_service<R>(&'a self, request: R) -> Result<(R, ReceivedPdu<'a>), Error>
[INFO] [stdout]     |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/subdevice/mod.rs:838:15
[INFO] [stdout]     |
[INFO] [stdout] 838 |     fn eeprom(&self) -> SubDeviceEeprom<DeviceEeprom> {
[INFO] [stdout]     |               ^^^^^                     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 838 |     fn eeprom(&self) -> SubDeviceEeprom<DeviceEeprom<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethercrab` (lib) due to 4 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b96a5939e4e0f62435e93e2e94c45b7bdca261a290e4f67dbab7c53e04b12b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96a5939e4e0f62435e93e2e94c45b7bdca261a290e4f67dbab7c53e04b12b6f", kill_on_drop: false }`
[INFO] [stdout] b96a5939e4e0f62435e93e2e94c45b7bdca261a290e4f67dbab7c53e04b12b6f
