[INFO] fetching crate tcp_wrapper 0.2.2...
[INFO] testing tcp_wrapper-0.2.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tcp_wrapper 0.2.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate tcp_wrapper 0.2.2
[INFO] finished tweaking crates.io crate tcp_wrapper 0.2.2
[INFO] tweaked toml for crates.io crate tcp_wrapper 0.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tcp_wrapper 0.2.2 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 tcp_wrapper 0.2.2 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2019f9a159ea00d3f90cc3e9f9a876cfd43f8bcfd7bc3d04c3512f9e912d15c4
[INFO] running `Command { std: "docker" "start" "-a" "2019f9a159ea00d3f90cc3e9f9a876cfd43f8bcfd7bc3d04c3512f9e912d15c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2019f9a159ea00d3f90cc3e9f9a876cfd43f8bcfd7bc3d04c3512f9e912d15c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2019f9a159ea00d3f90cc3e9f9a876cfd43f8bcfd7bc3d04c3512f9e912d15c4", kill_on_drop: false }`
[INFO] [stdout] 2019f9a159ea00d3f90cc3e9f9a876cfd43f8bcfd7bc3d04c3512f9e912d15c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7c5b26b3e20cb840072ad605c6d31aaa21ba276a05ea4ea1a11f0b62e32512f4
[INFO] running `Command { std: "docker" "start" "-a" "7c5b26b3e20cb840072ad605c6d31aaa21ba276a05ea4ea1a11f0b62e32512f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tcp_wrapper v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.44s
[INFO] running `Command { std: "docker" "inspect" "7c5b26b3e20cb840072ad605c6d31aaa21ba276a05ea4ea1a11f0b62e32512f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5b26b3e20cb840072ad605c6d31aaa21ba276a05ea4ea1a11f0b62e32512f4", kill_on_drop: false }`
[INFO] [stdout] 7c5b26b3e20cb840072ad605c6d31aaa21ba276a05ea4ea1a11f0b62e32512f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 815fe325e4e2cd6fc664fbcd6f115f001689eae89d54941d5855e06f6f27d4bf
[INFO] running `Command { std: "docker" "start" "-a" "815fe325e4e2cd6fc664fbcd6f115f001689eae89d54941d5855e06f6f27d4bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_wrapper v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "815fe325e4e2cd6fc664fbcd6f115f001689eae89d54941d5855e06f6f27d4bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815fe325e4e2cd6fc664fbcd6f115f001689eae89d54941d5855e06f6f27d4bf", kill_on_drop: false }`
[INFO] [stdout] 815fe325e4e2cd6fc664fbcd6f115f001689eae89d54941d5855e06f6f27d4bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aebf7a636d118a3c8d5a3a36a726a4c92bb036807216a7b2393e71a9ca7e8aae
[INFO] running `Command { std: "docker" "start" "-a" "aebf7a636d118a3c8d5a3a36a726a4c92bb036807216a7b2393e71a9ca7e8aae", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tcp_wrapper-a2b7e666d192c434)
[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]    Doc-tests tcp_wrapper
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/tcp_server/server_std/mod.rs - tcp_server::server_std::TcpServer (line 13) ... FAILED
[INFO] [stdout] test src/tcp_client/client_std.rs - tcp_client::client_std::Client (line 13) ... ok
[INFO] [stdout] test src/tcp_server/server_async/mod.rs - tcp_server::server_async::TcpServer (line 14) ... FAILED
[INFO] [stdout] test src/tcp_client/client_async.rs - tcp_client::client_async::TcpClient (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/tcp_server/server_std/mod.rs - tcp_server::server_std::TcpServer (line 13) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Io(Os { code: 98, kind: AddrInUse, message: "Address already in use" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/tcp_server/server_async/mod.rs - tcp_server::server_async::TcpServer (line 14) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Io(Os { code: 98, kind: AddrInUse, message: "Address already in use" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/tcp_server/server_async/mod.rs - tcp_server::server_async::TcpServer (line 14)
[INFO] [stdout]     src/tcp_server/server_std/mod.rs - tcp_server::server_std::TcpServer (line 13)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "aebf7a636d118a3c8d5a3a36a726a4c92bb036807216a7b2393e71a9ca7e8aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aebf7a636d118a3c8d5a3a36a726a4c92bb036807216a7b2393e71a9ca7e8aae", kill_on_drop: false }`
[INFO] [stdout] aebf7a636d118a3c8d5a3a36a726a4c92bb036807216a7b2393e71a9ca7e8aae
