[INFO] fetching crate rust-tango 0.1.2...
[INFO] testing rust-tango-0.1.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust-tango 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rust-tango 0.1.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust-tango 0.1.2
[INFO] tweaked toml for crates.io crate rust-tango 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-tango 0.1.2 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 rust-tango 0.1.2 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1132c7391117c815a22d517bcffbc08229fd8eb4efeac44fc5dc1536b924a0cd
[INFO] running `Command { std: "docker" "start" "-a" "1132c7391117c815a22d517bcffbc08229fd8eb4efeac44fc5dc1536b924a0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1132c7391117c815a22d517bcffbc08229fd8eb4efeac44fc5dc1536b924a0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1132c7391117c815a22d517bcffbc08229fd8eb4efeac44fc5dc1536b924a0cd", kill_on_drop: false }`
[INFO] [stdout] 1132c7391117c815a22d517bcffbc08229fd8eb4efeac44fc5dc1536b924a0cd
[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=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] 77c6b9afa3f35e6cf96f6ad7a3a71af200689341e2f06eca7e4148bb2462b293
[INFO] running `Command { std: "docker" "start" "-a" "77c6b9afa3f35e6cf96f6ad7a3a71af200689341e2f06eca7e4148bb2462b293", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tango v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "77c6b9afa3f35e6cf96f6ad7a3a71af200689341e2f06eca7e4148bb2462b293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c6b9afa3f35e6cf96f6ad7a3a71af200689341e2f06eca7e4148bb2462b293", kill_on_drop: false }`
[INFO] [stdout] 77c6b9afa3f35e6cf96f6ad7a3a71af200689341e2f06eca7e4148bb2462b293
[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=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] 6ed852e385a5a12968e64484827ebbf4fc9706889a0001bc5a07e262da14021c
[INFO] running `Command { std: "docker" "start" "-a" "6ed852e385a5a12968e64484827ebbf4fc9706889a0001bc5a07e262da14021c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling zerocopy v0.8.36
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zmij v1.0.17
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling cc v1.2.54
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.56
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling ringbuf v0.4.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling generator v0.8.8
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling clap v4.5.56
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling zerocopy-derive v0.8.36
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling loom v0.7.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling proptest v1.9.0
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling rust-tango v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 46.68s
[INFO] running `Command { std: "docker" "inspect" "6ed852e385a5a12968e64484827ebbf4fc9706889a0001bc5a07e262da14021c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed852e385a5a12968e64484827ebbf4fc9706889a0001bc5a07e262da14021c", kill_on_drop: false }`
[INFO] [stdout] 6ed852e385a5a12968e64484827ebbf4fc9706889a0001bc5a07e262da14021c
[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=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] d766d7b27a519516d96f952188d5e11fd8c4e049edd5d6542880373a113424f7
[INFO] running `Command { std: "docker" "start" "-a" "d766d7b27a519516d96f952188d5e11fd8c4e049edd5d6542880373a113424f7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_tango-bd45d9428a8069be)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::detect_overrun ... ok
[INFO] [stdout] test tests::metrics_backpressure_tracking ... ok
[INFO] [stdout] test tests::metrics_tracking ... ok
[INFO] [stdout] test tests::publish_and_consume ... ok
[INFO] [stdout] test tests::read_result_not_ready ... ok
[INFO] [stdout] test tests::publish_and_consume_with_flow_control ... ok
[INFO] [stderr]      Running tests/proptest.rs (/opt/rustwide/target/debug/deps/proptest-72b4a8d8e9874a17)
[INFO] [stdout] test tests::zero_copy_read ... ok
[INFO] [stdout] test tests::publish_and_consume_across_threads ... ok
[INFO] [stdout] test tests::flow_control_across_threads ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test flow_control_prevents_overrun ... ok
[INFO] [stdout] test credits_conserved ... ok
[INFO] [stdout] test metadata_preserved ... ok
[INFO] [stdout] test sequence_numbers_monotonic ... ok
[INFO] [stdout] test payload_truncation ... ok
[INFO] [stdout] test publish_consume_roundtrip ... ok
[INFO] [stderr]    Doc-tests rust_tango
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - Consumer<'a,MCACHE_DEPTH,CHUNK_COUNT,CHUNK_SIZE>::into_iter (line 1218) ... ignored
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - ChannelBuilder (line 1272) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.70s; merged doctests compilation took 0.67s
[INFO] running `Command { std: "docker" "inspect" "d766d7b27a519516d96f952188d5e11fd8c4e049edd5d6542880373a113424f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d766d7b27a519516d96f952188d5e11fd8c4e049edd5d6542880373a113424f7", kill_on_drop: false }`
[INFO] [stdout] d766d7b27a519516d96f952188d5e11fd8c4e049edd5d6542880373a113424f7
