[INFO] fetching crate kill_tree 0.2.4...
[INFO] checking kill_tree-0.2.4 against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721-1
[INFO] extracting crate kill_tree 0.2.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate kill_tree 0.2.4
[INFO] finished tweaking crates.io crate kill_tree 0.2.4
[INFO] tweaked toml for crates.io crate kill_tree 0.2.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kill_tree 0.2.4 on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 74 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.69.5 (available: v0.72.1)
[INFO] [stderr]       Adding nix v0.27.1 (available: v0.31.3)
[INFO] [stderr]       Adding windows v0.52.0 (available: v0.62.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-test-macro v0.2.6
[INFO] [stderr]   Downloaded tracing-test v0.2.6
[INFO] [stderr]   Downloaded nix v0.27.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804
[INFO] running `Command { std: "docker" "start" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804", 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" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804", 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" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.46
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]     Checking regex-syntax v0.8.11
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking log v0.4.33
[INFO] [stderr]     Checking nu-ansi-term v0.50.3
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]     Checking bitflags v2.13.0
[INFO] [stderr]    Compiling kill_tree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing-test-macro v0.2.6
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]    --> src/linux.rs:150:48
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/core.rs:98:48
[INFO] [stdout]     |
[INFO] [stdout]  98 |     fn new_killable(&self, config: &Config) -> Result<impl Killable>;
[INFO] [stdout]     |                                                --------------------- return type from trait method defined here
[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] 150 -     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout] 150 +     fn new_killable(&self, config: &Config) -> std::result::Result<impl core::Killable, core::Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> src/unix.rs:74:48
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/core.rs:98:48
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn new_killable(&self, config: &Config) -> Result<impl Killable>;
[INFO] [stdout]    |                                                --------------------- return type from trait method defined here
[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] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 74 -     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout] 74 +     fn new_killable(&self, config: &Config) -> std::result::Result<impl core::Killable, core::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-test v0.2.6
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]    --> src/linux.rs:150:48
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/core.rs:98:48
[INFO] [stdout]     |
[INFO] [stdout]  98 |     fn new_killable(&self, config: &Config) -> Result<impl Killable>;
[INFO] [stdout]     |                                                --------------------- return type from trait method defined here
[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] 150 -     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout] 150 +     fn new_killable(&self, config: &Config) -> std::result::Result<impl core::Killable, core::Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> src/unix.rs:74:48
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/core.rs:98:48
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn new_killable(&self, config: &Config) -> Result<impl Killable>;
[INFO] [stdout]    |                                                --------------------- return type from trait method defined here
[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] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 74 -     fn new_killable(&self, config: &Config) -> Result<Killer> {
[INFO] [stdout] 74 +     fn new_killable(&self, config: &Config) -> std::result::Result<impl core::Killable, core::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.63s
[INFO] running `Command { std: "docker" "inspect" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804", kill_on_drop: false }`
[INFO] [stdout] 75c023b90a54539831f51e9a78b1ab8ae4a1bceb9dc5e2ab55ee9e10fe4e1804