[INFO] fetching crate read-write-pipe 0.1.0...
[INFO] testing read-write-pipe-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate read-write-pipe 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate read-write-pipe 0.1.0
[INFO] finished tweaking crates.io crate read-write-pipe 0.1.0
[INFO] tweaked toml for crates.io crate read-write-pipe 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate read-write-pipe 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate read-write-pipe 0.1.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bc08940c2613412a245d8abd328970018b7c3f9c9d014b249abb9f49bddc321
[INFO] running `Command { std: "docker" "start" "-a" "3bc08940c2613412a245d8abd328970018b7c3f9c9d014b249abb9f49bddc321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bc08940c2613412a245d8abd328970018b7c3f9c9d014b249abb9f49bddc321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc08940c2613412a245d8abd328970018b7c3f9c9d014b249abb9f49bddc321", kill_on_drop: false }`
[INFO] [stdout] 3bc08940c2613412a245d8abd328970018b7c3f9c9d014b249abb9f49bddc321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7600cf8d1886f47ecf672aafab83a3854d8da728d21ef94f09ba3d11f43662f
[INFO] running `Command { std: "docker" "start" "-a" "a7600cf8d1886f47ecf672aafab83a3854d8da728d21ef94f09ba3d11f43662f", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-write-pipe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "a7600cf8d1886f47ecf672aafab83a3854d8da728d21ef94f09ba3d11f43662f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7600cf8d1886f47ecf672aafab83a3854d8da728d21ef94f09ba3d11f43662f", kill_on_drop: false }`
[INFO] [stdout] a7600cf8d1886f47ecf672aafab83a3854d8da728d21ef94f09ba3d11f43662f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b73449e07ccc6cdccf30a7bf748bfcbf8b992887aa4fcefd2e05403fd672062
[INFO] running `Command { std: "docker" "start" "-a" "4b73449e07ccc6cdccf30a7bf748bfcbf8b992887aa4fcefd2e05403fd672062", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-write-pipe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "4b73449e07ccc6cdccf30a7bf748bfcbf8b992887aa4fcefd2e05403fd672062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b73449e07ccc6cdccf30a7bf748bfcbf8b992887aa4fcefd2e05403fd672062", kill_on_drop: false }`
[INFO] [stdout] 4b73449e07ccc6cdccf30a7bf748bfcbf8b992887aa4fcefd2e05403fd672062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b36ec61e9fc000219e0c710ce576f079a5322162398105e542a8eaae510ae3ba
[INFO] running `Command { std: "docker" "start" "-a" "b36ec61e9fc000219e0c710ce576f079a5322162398105e542a8eaae510ae3ba", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_write_pipe-7589c16807fea08c)
[INFO] [stderr]    Doc-tests read_write_pipe
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::writes_all_bytes_from_reader_into_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ReadWritePipe (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b36ec61e9fc000219e0c710ce576f079a5322162398105e542a8eaae510ae3ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b36ec61e9fc000219e0c710ce576f079a5322162398105e542a8eaae510ae3ba", kill_on_drop: false }`
[INFO] [stdout] b36ec61e9fc000219e0c710ce576f079a5322162398105e542a8eaae510ae3ba