[INFO] fetching crate kill_tree 0.2.4...
[INFO] checking kill_tree-0.2.4 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate kill_tree 0.2.4 into /workspace/builds/worker-2-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kill_tree 0.2.4 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 94 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.69.5 (available: v0.72.1)
[INFO] [stderr]       Adding nix v0.27.1 (available: v0.30.1)
[INFO] [stderr]       Adding windows v0.52.0 (available: v0.61.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fdcb13d457a533e9eca8c75ecc9623160462207aa041cc72339ed503e5405fe
[INFO] running `Command { std: "docker" "start" "-a" "7fdcb13d457a533e9eca8c75ecc9623160462207aa041cc72339ed503e5405fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fdcb13d457a533e9eca8c75ecc9623160462207aa041cc72339ed503e5405fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fdcb13d457a533e9eca8c75ecc9623160462207aa041cc72339ed503e5405fe", kill_on_drop: false }`
[INFO] [stdout] 7fdcb13d457a533e9eca8c75ecc9623160462207aa041cc72339ed503e5405fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92d42bfeb172583cbf77eb6610bb70f2229f206fca60025053fff1f0a0472c9f
[INFO] running `Command { std: "docker" "start" "-a" "92d42bfeb172583cbf77eb6610bb70f2229f206fca60025053fff1f0a0472c9f", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling kill_tree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]    Compiling tracing-test-macro v0.2.5
[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)]` 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 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 Killable, core::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking tracing-test v0.2.5
[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)]` 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 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 Killable, core::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.89s
[INFO] running `Command { std: "docker" "inspect" "92d42bfeb172583cbf77eb6610bb70f2229f206fca60025053fff1f0a0472c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d42bfeb172583cbf77eb6610bb70f2229f206fca60025053fff1f0a0472c9f", kill_on_drop: false }`
[INFO] [stdout] 92d42bfeb172583cbf77eb6610bb70f2229f206fca60025053fff1f0a0472c9f