[INFO] fetching crate test-io-dev 0.1.0...
[INFO] testing test-io-dev-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate test-io-dev 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate test-io-dev 0.1.0
[INFO] finished tweaking crates.io crate test-io-dev 0.1.0
[INFO] tweaked toml for crates.io crate test-io-dev 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate test-io-dev 0.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[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] d06fc80d3a5a6cecbd5c9a5c50eb0f98754103ee97ea68da55412217d4a73dfd
[INFO] running `Command { std: "docker" "start" "-a" "d06fc80d3a5a6cecbd5c9a5c50eb0f98754103ee97ea68da55412217d4a73dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06fc80d3a5a6cecbd5c9a5c50eb0f98754103ee97ea68da55412217d4a73dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d06fc80d3a5a6cecbd5c9a5c50eb0f98754103ee97ea68da55412217d4a73dfd", kill_on_drop: false }`
[INFO] [stdout] d06fc80d3a5a6cecbd5c9a5c50eb0f98754103ee97ea68da55412217d4a73dfd
[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] b896e19dadbf10bdbddbb420f7619693ea4d8800d66f05fdd5c39bd455f6c013
[INFO] running `Command { std: "docker" "start" "-a" "b896e19dadbf10bdbddbb420f7619693ea4d8800d66f05fdd5c39bd455f6c013", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-io-dev v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "b896e19dadbf10bdbddbb420f7619693ea4d8800d66f05fdd5c39bd455f6c013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b896e19dadbf10bdbddbb420f7619693ea4d8800d66f05fdd5c39bd455f6c013", kill_on_drop: false }`
[INFO] [stdout] b896e19dadbf10bdbddbb420f7619693ea4d8800d66f05fdd5c39bd455f6c013
[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] 32a5bf26a201d577748afd564025cfdbd3247874b00298b50fc89274c021ac77
[INFO] running `Command { std: "docker" "start" "-a" "32a5bf26a201d577748afd564025cfdbd3247874b00298b50fc89274c021ac77", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-io-dev v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "32a5bf26a201d577748afd564025cfdbd3247874b00298b50fc89274c021ac77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a5bf26a201d577748afd564025cfdbd3247874b00298b50fc89274c021ac77", kill_on_drop: false }`
[INFO] [stdout] 32a5bf26a201d577748afd564025cfdbd3247874b00298b50fc89274c021ac77
[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] 8cc3581305d1d7e7021caadfd419f08ce2dc8ab03a528b01c47939874c66932e
[INFO] running `Command { std: "docker" "start" "-a" "8cc3581305d1d7e7021caadfd419f08ce2dc8ab03a528b01c47939874c66932e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/test_io_dev-ecb6b08f8082877e)
[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] running `Command { std: "docker" "inspect" "8cc3581305d1d7e7021caadfd419f08ce2dc8ab03a528b01c47939874c66932e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc3581305d1d7e7021caadfd419f08ce2dc8ab03a528b01c47939874c66932e", kill_on_drop: false }`
[INFO] [stdout] 8cc3581305d1d7e7021caadfd419f08ce2dc8ab03a528b01c47939874c66932e