[INFO] fetching crate piper 0.2.5...
[INFO] testing piper-0.2.5 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate piper 0.2.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate piper 0.2.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate piper 0.2.5
[INFO] tweaked toml for crates.io crate piper 0.2.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate piper 0.2.5 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 piper 0.2.5 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] 930672dc1bac398385e6db0202389239fe3f4f9ea2f760be2b344b32bb63dd93
[INFO] running `Command { std: "docker" "start" "-a" "930672dc1bac398385e6db0202389239fe3f4f9ea2f760be2b344b32bb63dd93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "930672dc1bac398385e6db0202389239fe3f4f9ea2f760be2b344b32bb63dd93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930672dc1bac398385e6db0202389239fe3f4f9ea2f760be2b344b32bb63dd93", kill_on_drop: false }`
[INFO] [stdout] 930672dc1bac398385e6db0202389239fe3f4f9ea2f760be2b344b32bb63dd93
[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] 243931a2fa862ebdc311cc7c93928186a0a89b9718e0774d0b5edaab7404b13c
[INFO] running `Command { std: "docker" "start" "-a" "243931a2fa862ebdc311cc7c93928186a0a89b9718e0774d0b5edaab7404b13c", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling piper v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "243931a2fa862ebdc311cc7c93928186a0a89b9718e0774d0b5edaab7404b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "243931a2fa862ebdc311cc7c93928186a0a89b9718e0774d0b5edaab7404b13c", kill_on_drop: false }`
[INFO] [stdout] 243931a2fa862ebdc311cc7c93928186a0a89b9718e0774d0b5edaab7404b13c
[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] 2e4729b237043f442aed111a93d05e8ad8713073dab9df2d33bdbb52f501a103
[INFO] running `Command { std: "docker" "start" "-a" "2e4729b237043f442aed111a93d05e8ad8713073dab9df2d33bdbb52f501a103", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling zerocopy v0.8.40
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling clap_lex v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling clap_builder v4.5.60
[INFO] [stderr]    Compiling easy-parallel v3.3.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling async-executor v1.14.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling clap v4.5.60
[INFO] [stderr]    Compiling zerocopy-derive v0.8.40
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.8.2
[INFO] [stderr]    Compiling piper v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 22.68s
[INFO] running `Command { std: "docker" "inspect" "2e4729b237043f442aed111a93d05e8ad8713073dab9df2d33bdbb52f501a103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4729b237043f442aed111a93d05e8ad8713073dab9df2d33bdbb52f501a103", kill_on_drop: false }`
[INFO] [stdout] 2e4729b237043f442aed111a93d05e8ad8713073dab9df2d33bdbb52f501a103
[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] 4be7ea26c0cde2c07ceb63ca214c6b9fa657d2494df419ead26596996640e2f4
[INFO] running `Command { std: "docker" "start" "-a" "4be7ea26c0cde2c07ceb63ca214c6b9fa657d2494df419ead26596996640e2f4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/piper-96f7bbe9efb5f479)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/pipe.rs (/opt/rustwide/target/debug/deps/pipe-0121bc1837a65ea3)
[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] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test len ... ok
[INFO] [stdout] test buf_read ... ok
[INFO] [stdout] test dropping_writer_does_not_lose_writes ... ok
[INFO] [stdout] test read ... ok
[INFO] [stdout] test large_pipe - should panic ... ok
[INFO] [stdout] test excessive_consume - should panic ... ok
[INFO] [stdout] test zero_cap_pipe - should panic ... ok
[INFO] [stdout] test excessive_produced - should panic ... ok
[INFO] [stdout] test dropping_writer_wakes_reader ... ok
[INFO] [stdout] test dropping_reader_wakes_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piper
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test src/lib.rs - (line 98) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 145) - compile ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_full (line 449) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_full (line 843) ... ok
[INFO] [stdout] test src/lib.rs - Reader::len (line 399) ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_closed (line 469) ... ok
[INFO] [stdout] test src/lib.rs - Writer::len (line 793) ... ok
[INFO] [stdout] test src/lib.rs - Reader::poll_drain (line 497) ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_empty (line 414) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_closed (line 863) ... ok
[INFO] [stdout] test src/lib.rs - Reader::try_drain (line 645) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_empty (line 808) ... ok
[INFO] [stdout] test src/lib.rs - Reader::poll (line 575) ... ok
[INFO] [stdout] test src/lib.rs - Reader::capacity (line 430) ... ok
[INFO] [stdout] test src/lib.rs - _assert_send_sync (line 1298) ... ok
[INFO] [stdout] test src/lib.rs - Writer::poll (line 1045) ... ok
[INFO] [stdout] test src/lib.rs - Reader::poll_drain_bytes (line 534) ... ok
[INFO] [stdout] test src/lib.rs - Writer::poll_fill (line 891) ... ok
[INFO] [stdout] test src/lib.rs - Writer::poll_fill_bytes (line 925) ... ok
[INFO] [stdout] test src/lib.rs - Writer::try_fill (line 957) ... ok
[INFO] [stdout] test src/lib.rs - Writer::capacity (line 824) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4be7ea26c0cde2c07ceb63ca214c6b9fa657d2494df419ead26596996640e2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be7ea26c0cde2c07ceb63ca214c6b9fa657d2494df419ead26596996640e2f4", kill_on_drop: false }`
[INFO] [stdout] 4be7ea26c0cde2c07ceb63ca214c6b9fa657d2494df419ead26596996640e2f4
