[INFO] fetching crate ns16550a 0.5.0...
[INFO] testing ns16550a-0.5.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ns16550a 0.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ns16550a 0.5.0
[INFO] finished tweaking crates.io crate ns16550a 0.5.0
[INFO] tweaked toml for crates.io crate ns16550a 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ns16550a 0.5.0 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 ns16550a 0.5.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] 709f6f5bb6ae499870a622d43118293eacab89677512485f69c593baa6579dfd
[INFO] running `Command { std: "docker" "start" "-a" "709f6f5bb6ae499870a622d43118293eacab89677512485f69c593baa6579dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "709f6f5bb6ae499870a622d43118293eacab89677512485f69c593baa6579dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709f6f5bb6ae499870a622d43118293eacab89677512485f69c593baa6579dfd", kill_on_drop: false }`
[INFO] [stdout] 709f6f5bb6ae499870a622d43118293eacab89677512485f69c593baa6579dfd
[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] 6805f9dfe3c05b7034e5deeecd64c96d618dcdb1e9c4e1835abf38287980197d
[INFO] running `Command { std: "docker" "start" "-a" "6805f9dfe3c05b7034e5deeecd64c96d618dcdb1e9c4e1835abf38287980197d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ns16550a v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "6805f9dfe3c05b7034e5deeecd64c96d618dcdb1e9c4e1835abf38287980197d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6805f9dfe3c05b7034e5deeecd64c96d618dcdb1e9c4e1835abf38287980197d", kill_on_drop: false }`
[INFO] [stdout] 6805f9dfe3c05b7034e5deeecd64c96d618dcdb1e9c4e1835abf38287980197d
[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] a4df9cb790da8e7edba8f471bd9a966e5bbe7052476f5e7f23a6641a511cd90f
[INFO] running `Command { std: "docker" "start" "-a" "a4df9cb790da8e7edba8f471bd9a966e5bbe7052476f5e7f23a6641a511cd90f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ns16550a v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a4df9cb790da8e7edba8f471bd9a966e5bbe7052476f5e7f23a6641a511cd90f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4df9cb790da8e7edba8f471bd9a966e5bbe7052476f5e7f23a6641a511cd90f", kill_on_drop: false }`
[INFO] [stdout] a4df9cb790da8e7edba8f471bd9a966e5bbe7052476f5e7f23a6641a511cd90f
[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] 9a4277e038d25ee132d8740aaf362940e5a3a3a62d9a52da232e30a65793bfb8
[INFO] running `Command { std: "docker" "start" "-a" "9a4277e038d25ee132d8740aaf362940e5a3a3a62d9a52da232e30a65793bfb8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ns16550a-a3ba07236315f7c0)
[INFO] [stderr]    Doc-tests ns16550a
[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] [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" "9a4277e038d25ee132d8740aaf362940e5a3a3a62d9a52da232e30a65793bfb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4277e038d25ee132d8740aaf362940e5a3a3a62d9a52da232e30a65793bfb8", kill_on_drop: false }`
[INFO] [stdout] 9a4277e038d25ee132d8740aaf362940e5a3a3a62d9a52da232e30a65793bfb8