[INFO] fetching crate multi-readers 0.6.0...
[INFO] testing multi-readers-0.6.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate multi-readers 0.6.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate multi-readers 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate multi-readers 0.6.0
[INFO] tweaked toml for crates.io crate multi-readers 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate multi-readers 0.6.0 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] crate crates.io crate multi-readers 0.6.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2dfdeb961601655e799b78669fbdb4db96c57e1fe1863147958fc747bc3e5657
[INFO] running `Command { std: "docker" "start" "-a" "2dfdeb961601655e799b78669fbdb4db96c57e1fe1863147958fc747bc3e5657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dfdeb961601655e799b78669fbdb4db96c57e1fe1863147958fc747bc3e5657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dfdeb961601655e799b78669fbdb4db96c57e1fe1863147958fc747bc3e5657", kill_on_drop: false }`
[INFO] [stdout] 2dfdeb961601655e799b78669fbdb4db96c57e1fe1863147958fc747bc3e5657
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bb2600c8bc3b140685b897211521786e32be70acc811b7496fde369aef5aa99d
[INFO] running `Command { std: "docker" "start" "-a" "bb2600c8bc3b140685b897211521786e32be70acc811b7496fde369aef5aa99d", kill_on_drop: false }`
[INFO] [stderr]    Compiling multi-readers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "bb2600c8bc3b140685b897211521786e32be70acc811b7496fde369aef5aa99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb2600c8bc3b140685b897211521786e32be70acc811b7496fde369aef5aa99d", kill_on_drop: false }`
[INFO] [stdout] bb2600c8bc3b140685b897211521786e32be70acc811b7496fde369aef5aa99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2a4324a4aae86fa9e0bdfe003c0b939d17ed16eab7d4be842df4e6dd377b2a0c
[INFO] running `Command { std: "docker" "start" "-a" "2a4324a4aae86fa9e0bdfe003c0b939d17ed16eab7d4be842df4e6dd377b2a0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling multi-readers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "2a4324a4aae86fa9e0bdfe003c0b939d17ed16eab7d4be842df4e6dd377b2a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4324a4aae86fa9e0bdfe003c0b939d17ed16eab7d4be842df4e6dd377b2a0c", kill_on_drop: false }`
[INFO] [stdout] 2a4324a4aae86fa9e0bdfe003c0b939d17ed16eab7d4be842df4e6dd377b2a0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d5f89141a7424b0e3984a558b16097889a604e2d8ea0fddcd98eecd47563e234
[INFO] running `Command { std: "docker" "start" "-a" "d5f89141a7424b0e3984a558b16097889a604e2d8ea0fddcd98eecd47563e234", 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/multi_readers-704a6775f59e1440)
[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 multi_readers
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/wrap.rs - wrap::open (line 37) ... ignored
[INFO] [stdout] test src/wrap.rs - wrap::wrap (line 6) ... ignored
[INFO] [stdout] test src/reader.rs - reader::MultiReaders<T>::flatten (line 43) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5f89141a7424b0e3984a558b16097889a604e2d8ea0fddcd98eecd47563e234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f89141a7424b0e3984a558b16097889a604e2d8ea0fddcd98eecd47563e234", kill_on_drop: false }`
[INFO] [stdout] d5f89141a7424b0e3984a558b16097889a604e2d8ea0fddcd98eecd47563e234