[INFO] fetching crate piper 0.2.1...
[INFO] testing piper-0.2.1 against master#ff2c56344c764af598ad33027e9c7a48881808ef for pr-118825
[INFO] extracting crate piper 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate piper 0.2.1 on toolchain ff2c56344c764af598ad33027e9c7a48881808ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piper 0.2.1
[INFO] finished tweaking crates.io crate piper 0.2.1
[INFO] tweaked toml for crates.io crate piper 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded portable-atomic-util v0.1.3
[INFO] [stderr]   Downloaded easy-parallel v3.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d46bce86878de853d8c425fb77d69540994be0528992852299db81eaa2666c7a
[INFO] running `Command { std: "docker" "start" "-a" "d46bce86878de853d8c425fb77d69540994be0528992852299db81eaa2666c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d46bce86878de853d8c425fb77d69540994be0528992852299db81eaa2666c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d46bce86878de853d8c425fb77d69540994be0528992852299db81eaa2666c7a", kill_on_drop: false }`
[INFO] [stdout] d46bce86878de853d8c425fb77d69540994be0528992852299db81eaa2666c7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 932ab0c5d77732daa51679539053aca1b603fd194e7934f9482d3112b283f9f3
[INFO] running `Command { std: "docker" "start" "-a" "932ab0c5d77732daa51679539053aca1b603fd194e7934f9482d3112b283f9f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling piper v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "932ab0c5d77732daa51679539053aca1b603fd194e7934f9482d3112b283f9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "932ab0c5d77732daa51679539053aca1b603fd194e7934f9482d3112b283f9f3", kill_on_drop: false }`
[INFO] [stdout] 932ab0c5d77732daa51679539053aca1b603fd194e7934f9482d3112b283f9f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4083911be086ed58722ee5943870bc43a52e0ae63b603a84f4aee5099e848adc
[INFO] running `Command { std: "docker" "start" "-a" "4083911be086ed58722ee5943870bc43a52e0ae63b603a84f4aee5099e848adc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling ciborium-io v0.2.1
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling concurrent-queue v2.4.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling event-listener v4.0.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.1
[INFO] [stderr]    Compiling event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling waker-fn v1.1.1
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling async-lock v3.2.0
[INFO] [stderr]    Compiling futures-lite v2.1.0
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling async-task v4.5.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling ciborium v0.2.1
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling async-executor v1.8.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling easy-parallel v3.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stderr]    Compiling piper v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.67s
[INFO] running `Command { std: "docker" "inspect" "4083911be086ed58722ee5943870bc43a52e0ae63b603a84f4aee5099e848adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4083911be086ed58722ee5943870bc43a52e0ae63b603a84f4aee5099e848adc", kill_on_drop: false }`
[INFO] [stdout] 4083911be086ed58722ee5943870bc43a52e0ae63b603a84f4aee5099e848adc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17e719754f197c1d627dc954a936df78d64c5aaf79837de7465c2f0ccce849a4
[INFO] running `Command { std: "docker" "start" "-a" "17e719754f197c1d627dc954a936df78d64c5aaf79837de7465c2f0ccce849a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/piper-190613e9222d931f)
[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] [stderr]      Running tests/pipe.rs (/opt/rustwide/target/debug/deps/pipe-07ef66dbaa7c642f)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test len ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test read ... ok
[INFO] [stdout] test large_pipe - should panic ... ok
[INFO] [stdout] test zero_cap_pipe - 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. 7 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 20 tests
[INFO] [stdout] test src/lib.rs - (line 145) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 98) - compile ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_empty (line 407) ... ok
[INFO] [stdout] test src/lib.rs - Reader::capacity (line 427) ... ok
[INFO] [stdout] test src/lib.rs - Reader::len (line 388) ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_full (line 446) ... ok
[INFO] [stdout] test src/lib.rs - Reader::is_closed (line 470) ... ok
[INFO] [stdout] test src/lib.rs - Reader::poll_drain_bytes (line 535) ... ok
[INFO] [stdout] test src/lib.rs - Reader::poll_drain (line 498) ... ok
[INFO] [stdout] test src/lib.rs - Reader::try_drain (line 565) ... ok
[INFO] [stdout] test src/lib.rs - Writer::capacity (line 744) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_closed (line 787) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_empty (line 724) ... ok
[INFO] [stdout] test src/lib.rs - Writer::is_full (line 763) ... ok
[INFO] [stdout] test src/lib.rs - Writer::len (line 705) ... ok
[INFO] [stdout] test src/lib.rs - Writer::poll_fill (line 815) ... ok
[INFO] [stdout] test src/lib.rs - _assert_send_sync (line 1142) ... ok
[INFO] [stdout] test src/lib.rs - Writer::try_fill (line 881) ... ok
[INFO] [stdout] test src/lib.rs - Writer::poll_fill_bytes (line 849) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.86s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17e719754f197c1d627dc954a936df78d64c5aaf79837de7465c2f0ccce849a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e719754f197c1d627dc954a936df78d64c5aaf79837de7465c2f0ccce849a4", kill_on_drop: false }`
[INFO] [stdout] 17e719754f197c1d627dc954a936df78d64c5aaf79837de7465c2f0ccce849a4