[INFO] fetching crate concurrent-round-robin 0.1.0...
[INFO] testing concurrent-round-robin-0.1.0 against 1.94.0 for beta-1.95-1
[INFO] extracting crate concurrent-round-robin 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate concurrent-round-robin 0.1.0
[INFO] finished tweaking crates.io crate concurrent-round-robin 0.1.0
[INFO] tweaked toml for crates.io crate concurrent-round-robin 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate concurrent-round-robin 0.1.0 on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "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" "+1.94.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (available: v6.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.21.3
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.114
[INFO] [stderr]   Downloaded iana-time-zone-haiku v0.1.2
[INFO] [stderr]   Downloaded windows-interface v0.59.3
[INFO] [stderr]   Downloaded android_system_properties v0.1.5
[INFO] [stderr]   Downloaded shlex v1.3.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.7
[INFO] [stderr]   Downloaded log v0.4.29
[INFO] [stderr]   Downloaded cc v1.2.56
[INFO] [stderr]   Downloaded bumpalo v3.20.2
[INFO] [stderr]   Downloaded hashbrown v0.14.5
[INFO] [stderr]   Downloaded js-sys v0.3.91
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.114
[INFO] [stderr]   Downloaded proc-macro2 v1.0.106
[INFO] [stderr]   Downloaded unicode-ident v1.0.24
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.114
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.9
[INFO] [stderr]   Downloaded windows-core v0.62.2
[INFO] [stderr]   Downloaded chrono v0.4.44
[INFO] [stderr]   Downloaded iana-time-zone v0.1.65
[INFO] [stderr]   Downloaded syn v2.0.117
[INFO] [stderr]   Downloaded quote v1.0.45
[INFO] [stderr]   Downloaded bitflags v2.11.0
[INFO] [stderr]   Downloaded dashmap v5.5.3
[INFO] [stderr]   Downloaded windows-implement v0.60.2
[INFO] [stderr]   Downloaded windows-strings v0.5.1
[INFO] [stderr]   Downloaded windows-result v0.4.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.114
[INFO] [stderr]   Downloaded libc v0.2.183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3c9200366612eaeded23fe6774fc5dd861a575d8e6561bb5d8679b1c86149ee
[INFO] running `Command { std: "docker" "start" "-a" "b3c9200366612eaeded23fe6774fc5dd861a575d8e6561bb5d8679b1c86149ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c9200366612eaeded23fe6774fc5dd861a575d8e6561bb5d8679b1c86149ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c9200366612eaeded23fe6774fc5dd861a575d8e6561bb5d8679b1c86149ee", kill_on_drop: false }`
[INFO] [stdout] b3c9200366612eaeded23fe6774fc5dd861a575d8e6561bb5d8679b1c86149ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cb7585d2106b9fc758dd736d0986795913ceaa09e0fd645bf36e072563e7ac0
[INFO] running `Command { std: "docker" "start" "-a" "9cb7585d2106b9fc758dd736d0986795913ceaa09e0fd645bf36e072563e7ac0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling concurrent-round-robin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn select(&self) -> Option<RefMut<usize, 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] 88 |     pub fn select(&self) -> Option<RefMut<'_, usize, T>> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "9cb7585d2106b9fc758dd736d0986795913ceaa09e0fd645bf36e072563e7ac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cb7585d2106b9fc758dd736d0986795913ceaa09e0fd645bf36e072563e7ac0", kill_on_drop: false }`
[INFO] [stdout] 9cb7585d2106b9fc758dd736d0986795913ceaa09e0fd645bf36e072563e7ac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aecc11d113bcc6833b5a6a8c93669f5d0398b41a51ad1bc4b289a1842b8a3fb3
[INFO] running `Command { std: "docker" "start" "-a" "aecc11d113bcc6833b5a6a8c93669f5d0398b41a51ad1bc4b289a1842b8a3fb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrent-round-robin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn select(&self) -> Option<RefMut<usize, 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] 88 |     pub fn select(&self) -> Option<RefMut<'_, usize, T>> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn select(&self) -> Option<RefMut<usize, 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] 88 |     pub fn select(&self) -> Option<RefMut<'_, usize, T>> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "aecc11d113bcc6833b5a6a8c93669f5d0398b41a51ad1bc4b289a1842b8a3fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aecc11d113bcc6833b5a6a8c93669f5d0398b41a51ad1bc4b289a1842b8a3fb3", kill_on_drop: false }`
[INFO] [stdout] aecc11d113bcc6833b5a6a8c93669f5d0398b41a51ad1bc4b289a1842b8a3fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6b97c5109aea1faaf7d3e890226f56a49ac0b0e350ca449a7ceafd8a08f5ea7
[INFO] running `Command { std: "docker" "start" "-a" "b6b97c5109aea1faaf7d3e890226f56a49ac0b0e350ca449a7ceafd8a08f5ea7", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:88:19
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn select(&self) -> Option<RefMut<usize, 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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn select(&self) -> Option<RefMut<'_, usize, T>> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `concurrent-round-robin` (lib) generated 1 warning (run `cargo fix --lib -p concurrent-round-robin` to apply 1 suggestion)
[INFO] [stderr] warning: `concurrent-round-robin` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/concurrent_round_robin-2247afc214dd9604)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test t ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.49s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests concurrent_round_robin
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - WeightedRoundRobinSelector (line 32) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - WeightedRoundRobinSelector (line 32) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]   --> src/lib.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 | let balancer = Arc::new(WeightedRoundRobinSelector::new(
[INFO] [stdout]    |                ^^^ use of undeclared type `Arc`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 31 + use std::sync::Arc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - WeightedRoundRobinSelector (line 32)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b6b97c5109aea1faaf7d3e890226f56a49ac0b0e350ca449a7ceafd8a08f5ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b97c5109aea1faaf7d3e890226f56a49ac0b0e350ca449a7ceafd8a08f5ea7", kill_on_drop: false }`
[INFO] [stdout] b6b97c5109aea1faaf7d3e890226f56a49ac0b0e350ca449a7ceafd8a08f5ea7
