[INFO] fetching crate tee_readwrite 0.2.0...
[INFO] testing tee_readwrite-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tee_readwrite 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tee_readwrite 0.2.0
[INFO] finished tweaking crates.io crate tee_readwrite 0.2.0
[INFO] tweaked toml for crates.io crate tee_readwrite 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tee_readwrite 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08482bcdd95cbee709902fed473244f594e3a188af033fd0a122fc380c1939ee
[INFO] running `Command { std: "docker" "start" "-a" "08482bcdd95cbee709902fed473244f594e3a188af033fd0a122fc380c1939ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08482bcdd95cbee709902fed473244f594e3a188af033fd0a122fc380c1939ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08482bcdd95cbee709902fed473244f594e3a188af033fd0a122fc380c1939ee", kill_on_drop: false }`
[INFO] [stdout] 08482bcdd95cbee709902fed473244f594e3a188af033fd0a122fc380c1939ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1ec9b62d9efc4e248c97fbb195d84992a2c858a8e7f6d6598fbaf3c3be36709
[INFO] running `Command { std: "docker" "start" "-a" "f1ec9b62d9efc4e248c97fbb195d84992a2c858a8e7f6d6598fbaf3c3be36709", kill_on_drop: false }`
[INFO] [stderr]    Compiling tee_readwrite v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f1ec9b62d9efc4e248c97fbb195d84992a2c858a8e7f6d6598fbaf3c3be36709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ec9b62d9efc4e248c97fbb195d84992a2c858a8e7f6d6598fbaf3c3be36709", kill_on_drop: false }`
[INFO] [stdout] f1ec9b62d9efc4e248c97fbb195d84992a2c858a8e7f6d6598fbaf3c3be36709
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36c69cfa6bb631f4933cf130c3270a671d1eb51294661b003d50a59816af7652
[INFO] running `Command { std: "docker" "start" "-a" "36c69cfa6bb631f4933cf130c3270a671d1eb51294661b003d50a59816af7652", kill_on_drop: false }`
[INFO] [stderr]    Compiling tee_readwrite v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "36c69cfa6bb631f4933cf130c3270a671d1eb51294661b003d50a59816af7652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36c69cfa6bb631f4933cf130c3270a671d1eb51294661b003d50a59816af7652", kill_on_drop: false }`
[INFO] [stdout] 36c69cfa6bb631f4933cf130c3270a671d1eb51294661b003d50a59816af7652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e9a3e5090c2f5c7e5561d4e9442155d2a3885ecc953f4823e51474a2ae51533
[INFO] running `Command { std: "docker" "start" "-a" "7e9a3e5090c2f5c7e5561d4e9442155d2a3885ecc953f4823e51474a2ae51533", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tee_readwrite-d0b991b35006c0d3)
[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 tee_readwrite
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e9a3e5090c2f5c7e5561d4e9442155d2a3885ecc953f4823e51474a2ae51533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e9a3e5090c2f5c7e5561d4e9442155d2a3885ecc953f4823e51474a2ae51533", kill_on_drop: false }`
[INFO] [stdout] 7e9a3e5090c2f5c7e5561d4e9442155d2a3885ecc953f4823e51474a2ae51533