[INFO] fetching crate menmos-betterstreams 0.2.6...
[INFO] testing menmos-betterstreams-0.2.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate menmos-betterstreams 0.2.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate menmos-betterstreams 0.2.6
[INFO] finished tweaking crates.io crate menmos-betterstreams 0.2.6
[INFO] tweaked toml for crates.io crate menmos-betterstreams 0.2.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate menmos-betterstreams 0.2.6 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[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] 57f6cd9f2f0bc09c4610924abd1a009ea7ea1548ef87add5ceac339466d4b775
[INFO] running `Command { std: "docker" "start" "-a" "57f6cd9f2f0bc09c4610924abd1a009ea7ea1548ef87add5ceac339466d4b775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57f6cd9f2f0bc09c4610924abd1a009ea7ea1548ef87add5ceac339466d4b775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f6cd9f2f0bc09c4610924abd1a009ea7ea1548ef87add5ceac339466d4b775", kill_on_drop: false }`
[INFO] [stdout] 57f6cd9f2f0bc09c4610924abd1a009ea7ea1548ef87add5ceac339466d4b775
[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] 9dd940143ed1e2ac9d233faace024b6ba11cd647e10b01b306e019c96a766e6b
[INFO] running `Command { std: "docker" "start" "-a" "9dd940143ed1e2ac9d233faace024b6ba11cd647e10b01b306e019c96a766e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio-util v0.7.17
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling menmos-betterstreams v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.02s
[INFO] running `Command { std: "docker" "inspect" "9dd940143ed1e2ac9d233faace024b6ba11cd647e10b01b306e019c96a766e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd940143ed1e2ac9d233faace024b6ba11cd647e10b01b306e019c96a766e6b", kill_on_drop: false }`
[INFO] [stdout] 9dd940143ed1e2ac9d233faace024b6ba11cd647e10b01b306e019c96a766e6b
[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] 68b7c5e2f367583e69d510cf70566c42f6192b05cba02e6fffabe4fdea032818
[INFO] running `Command { std: "docker" "start" "-a" "68b7c5e2f367583e69d510cf70566c42f6192b05cba02e6fffabe4fdea032818", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling tokio-util v0.7.17
[INFO] [stderr]    Compiling menmos-betterstreams v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.67s
[INFO] running `Command { std: "docker" "inspect" "68b7c5e2f367583e69d510cf70566c42f6192b05cba02e6fffabe4fdea032818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b7c5e2f367583e69d510cf70566c42f6192b05cba02e6fffabe4fdea032818", kill_on_drop: false }`
[INFO] [stdout] 68b7c5e2f367583e69d510cf70566c42f6192b05cba02e6fffabe4fdea032818
[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] 8b0e6ceee39c4cddfd20600176bafb78a2374473c1f0931e4fcd48a4e94d0fbe
[INFO] running `Command { std: "docker" "start" "-a" "8b0e6ceee39c4cddfd20600176bafb78a2374473c1f0931e4fcd48a4e94d0fbe", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/betterstreams-d14a08dc1f8b3ddd)
[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 betterstreams
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/fs.rs - fs::read_range (line 83) - compile ... ok
[INFO] [stdout] test src/fs.rs - fs::write_all (line 25) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b0e6ceee39c4cddfd20600176bafb78a2374473c1f0931e4fcd48a4e94d0fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0e6ceee39c4cddfd20600176bafb78a2374473c1f0931e4fcd48a4e94d0fbe", kill_on_drop: false }`
[INFO] [stdout] 8b0e6ceee39c4cddfd20600176bafb78a2374473c1f0931e4fcd48a4e94d0fbe