[INFO] fetching crate shared-buffer-rs 0.3.2...
[INFO] testing shared-buffer-rs-0.3.2 against beta-2026-04-21 for beta-1.96-3
[INFO] extracting crate shared-buffer-rs 0.3.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate shared-buffer-rs 0.3.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate shared-buffer-rs 0.3.2
[INFO] tweaked toml for crates.io crate shared-buffer-rs 0.3.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shared-buffer-rs 0.3.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shared-buffer-rs 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0414e85db4932a31e08d6a056f555839c2aef03d2ddc04cd7eafe5cda3b47431
[INFO] running `Command { std: "docker" "start" "-a" "0414e85db4932a31e08d6a056f555839c2aef03d2ddc04cd7eafe5cda3b47431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0414e85db4932a31e08d6a056f555839c2aef03d2ddc04cd7eafe5cda3b47431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0414e85db4932a31e08d6a056f555839c2aef03d2ddc04cd7eafe5cda3b47431", kill_on_drop: false }`
[INFO] [stdout] 0414e85db4932a31e08d6a056f555839c2aef03d2ddc04cd7eafe5cda3b47431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7375edbc8b4e4ce903807a017813101bfedb1dd7614e75df21a85165c87da10b
[INFO] running `Command { std: "docker" "start" "-a" "7375edbc8b4e4ce903807a017813101bfedb1dd7614e75df21a85165c87da10b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling shared-buffer-rs v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]    --> src/lib.rs:288:18
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 |cx|
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]     --> src/lib.rs:1654:17
[INFO] [stdout]      |
[INFO] [stdout] 1654 |         for (i, item) in self.buffs.iter().enumerate()
[INFO] [stdout]      |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "7375edbc8b4e4ce903807a017813101bfedb1dd7614e75df21a85165c87da10b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7375edbc8b4e4ce903807a017813101bfedb1dd7614e75df21a85165c87da10b", kill_on_drop: false }`
[INFO] [stdout] 7375edbc8b4e4ce903807a017813101bfedb1dd7614e75df21a85165c87da10b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82d0241f4e668c0041c4125863ae958210d5f08d02d7e4c41cda20a47786d59e
[INFO] running `Command { std: "docker" "start" "-a" "82d0241f4e668c0041c4125863ae958210d5f08d02d7e4c41cda20a47786d59e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]    --> src/lib.rs:288:18
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 |cx|
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]     --> src/lib.rs:1654:17
[INFO] [stdout]      |
[INFO] [stdout] 1654 |         for (i, item) in self.buffs.iter().enumerate()
[INFO] [stdout]      |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.47.0
[INFO] [stderr]    Compiling shared-buffer-rs v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]    --> src/lib.rs:288:18
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 |cx|
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]     --> src/lib.rs:1654:17
[INFO] [stdout]      |
[INFO] [stdout] 1654 |         for (i, item) in self.buffs.iter().enumerate()
[INFO] [stdout]      |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.95s
[INFO] running `Command { std: "docker" "inspect" "82d0241f4e668c0041c4125863ae958210d5f08d02d7e4c41cda20a47786d59e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d0241f4e668c0041c4125863ae958210d5f08d02d7e4c41cda20a47786d59e", kill_on_drop: false }`
[INFO] [stdout] 82d0241f4e668c0041c4125863ae958210d5f08d02d7e4c41cda20a47786d59e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68f55d2e79aee3bb6bc129205f32c9bbe8eac3349af2730dbdb53427aa962fef
[INFO] running `Command { std: "docker" "start" "-a" "68f55d2e79aee3bb6bc129205f32c9bbe8eac3349af2730dbdb53427aa962fef", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cx`
[INFO] [stderr]    --> src/lib.rs:288:18
[INFO] [stderr]     |
[INFO] [stderr] 288 |                 |cx|
[INFO] [stderr]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]     --> src/lib.rs:1654:17
[INFO] [stderr]      |
[INFO] [stderr] 1654 |         for (i, item) in self.buffs.iter().enumerate()
[INFO] [stderr]      |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: `shared-buffer-rs` (lib) generated 2 warnings (run `cargo fix --lib -p shared-buffer-rs` to apply 2 suggestions)
[INFO] [stderr] warning: `shared-buffer-rs` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shared_buffer_rs-12cdb589217789ec)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::simple_test ... ok
[INFO] [stdout] test tests::simple_test_dopped_in_place ... ok
[INFO] [stdout] test tests::simple_test_dropped_in_place_downgrade ... ok
[INFO] [stdout] test tests::simple_test_drop_in_place_downgrade ... ok
[INFO] [stdout] test tests::test_async_clone ... ok
[INFO] [stdout] test tests::test_try_into_read ... ok
[INFO] [stdout] test tests::timing_test ... ok
[INFO] [stdout] test tests::test_multithreading ... ok
[INFO] [stdout] test tests::simple_test_mth ... ok
[INFO] [stdout] test tests::simple_test_concurent ... ok
[INFO] [stdout] test tests::test_multithreading_async ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shared_buffer_rs
[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" "68f55d2e79aee3bb6bc129205f32c9bbe8eac3349af2730dbdb53427aa962fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f55d2e79aee3bb6bc129205f32c9bbe8eac3349af2730dbdb53427aa962fef", kill_on_drop: false }`
[INFO] [stdout] 68f55d2e79aee3bb6bc129205f32c9bbe8eac3349af2730dbdb53427aa962fef
