[INFO] fetching crate kill_tree 0.2.4...
[INFO] checking kill_tree-0.2.4 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate kill_tree 0.2.4 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kill_tree 0.2.4 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "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" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "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" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211
[INFO] running `Command { std: "docker" "start" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211", 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" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211", 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" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling kill_tree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking nix v0.27.1
[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 9.55s
[INFO] running `Command { std: "docker" "inspect" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211", kill_on_drop: false }`
[INFO] [stdout] 526f03178616d8bbbbdcc488a6c26fa7acee6dcd93cda369ce9c56715306a211
