[INFO] fetching crate rctree 0.6.0...
[INFO] testing rctree-0.6.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate rctree 0.6.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rctree 0.6.0
[INFO] finished tweaking crates.io crate rctree 0.6.0
[INFO] tweaked toml for crates.io crate rctree 0.6.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rctree 0.6.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e47b037c3c03cda8ec103a96cdf843016535009961a5e313a720a2a6d7b7836d
[INFO] running `Command { std: "docker" "start" "-a" "e47b037c3c03cda8ec103a96cdf843016535009961a5e313a720a2a6d7b7836d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e47b037c3c03cda8ec103a96cdf843016535009961a5e313a720a2a6d7b7836d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47b037c3c03cda8ec103a96cdf843016535009961a5e313a720a2a6d7b7836d", kill_on_drop: false }`
[INFO] [stdout] e47b037c3c03cda8ec103a96cdf843016535009961a5e313a720a2a6d7b7836d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26fdd092906b70aa4ab5d84e951ac00b5fbdb4acb0082168bd5b3273f7f74477
[INFO] running `Command { std: "docker" "start" "-a" "26fdd092906b70aa4ab5d84e951ac00b5fbdb4acb0082168bd5b3273f7f74477", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rctree v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn borrow(&self) -> Ref<T> {
[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] 184 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn borrow_mut(&self) -> RefMut<T> {
[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] 193 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "26fdd092906b70aa4ab5d84e951ac00b5fbdb4acb0082168bd5b3273f7f74477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26fdd092906b70aa4ab5d84e951ac00b5fbdb4acb0082168bd5b3273f7f74477", kill_on_drop: false }`
[INFO] [stdout] 26fdd092906b70aa4ab5d84e951ac00b5fbdb4acb0082168bd5b3273f7f74477
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3686f1372bbadab1fe68115b77ad0f86de30e8bb8eb5a224874b0af47a39ddd
[INFO] running `Command { std: "docker" "start" "-a" "e3686f1372bbadab1fe68115b77ad0f86de30e8bb8eb5a224874b0af47a39ddd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn borrow(&self) -> Ref<T> {
[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] 184 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rctree v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn borrow_mut(&self) -> RefMut<T> {
[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] 193 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:184:19
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn borrow(&self) -> Ref<T> {
[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] 184 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn borrow_mut(&self) -> RefMut<T> {
[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] 193 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "e3686f1372bbadab1fe68115b77ad0f86de30e8bb8eb5a224874b0af47a39ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3686f1372bbadab1fe68115b77ad0f86de30e8bb8eb5a224874b0af47a39ddd", kill_on_drop: false }`
[INFO] [stdout] e3686f1372bbadab1fe68115b77ad0f86de30e8bb8eb5a224874b0af47a39ddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87f6f874daf0019b816dcf4264db17931ce76166ce6191f0609dfe211e82e529
[INFO] running `Command { std: "docker" "start" "-a" "87f6f874daf0019b816dcf4264db17931ce76166ce6191f0609dfe211e82e529", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:184:19
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 184 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                   ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 
[INFO] [stderr]     |                   |
[INFO] [stdout] 
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stdout] running 16 tests
[INFO] [stderr]     |
[INFO] [stdout] test children_2 ... ok
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] test children_1 ... ok
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] test drop_keeps_strong_refs ... ok
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stdout] test make_copy_1 ... ok
[INFO] [stderr]     |
[INFO] [stdout] test it_works ... ok
[INFO] [stderr] 184 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout] test make_deep_copy_1 ... ok
[INFO] [stderr]     |                                 +++
[INFO] [stdout] test traverse_1 ... ok
[INFO] [stderr] 
[INFO] [stdout] test weak_1 ... ok
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] test weak_2 ... ok
[INFO] [stderr]    --> src/lib.rs:193:23
[INFO] [stdout] test traverse_2 ... ok
[INFO] [stderr]     |
[INFO] [stderr] 193 |     pub fn borrow_mut(&self) -> RefMut<T> {
[INFO] [stderr]     |                       ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 193 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `rctree` (lib) generated 2 warnings (run `cargo fix --lib -p rctree` to apply 2 suggestions)
[INFO] [stderr] warning: `rctree` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rctree-13a51df44fd3e6e8)
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-1c5df1c44859f0ef)
[INFO] [stdout] test append_1 - should panic ... ok
[INFO] [stdout] test insert_before_1 - should panic ... ok
[INFO] [stdout] test insert_after_1 - should panic ... ok
[INFO] [stdout] test iter_1 - should panic ... ok
[INFO] [stdout] test prepend_1 - should panic ... ok
[INFO] [stdout] test stack_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rctree
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "87f6f874daf0019b816dcf4264db17931ce76166ce6191f0609dfe211e82e529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f6f874daf0019b816dcf4264db17931ce76166ce6191f0609dfe211e82e529", kill_on_drop: false }`
[INFO] [stdout] 87f6f874daf0019b816dcf4264db17931ce76166ce6191f0609dfe211e82e529