[INFO] fetching crate realm_io 0.5.3...
[INFO] testing realm_io-0.5.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate realm_io 0.5.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate realm_io 0.5.3
[INFO] finished tweaking crates.io crate realm_io 0.5.3
[INFO] tweaked toml for crates.io crate realm_io 0.5.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate realm_io 0.5.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate realm_io 0.5.3 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v1.0.1
[INFO] [stderr]   Downloaded io-uring v0.7.9
[INFO] [stderr]   Downloaded memchr v2.7.5
[INFO] [stderr]   Downloaded backtrace v0.3.75
[INFO] [stderr]   Downloaded bitflags v2.9.1
[INFO] [stderr]   Downloaded libc v0.2.174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f4222d38dc6a8e1fb661532390772f81ce3ff83439b8d7cee7a9c57967b82fd
[INFO] running `Command { std: "docker" "start" "-a" "7f4222d38dc6a8e1fb661532390772f81ce3ff83439b8d7cee7a9c57967b82fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4222d38dc6a8e1fb661532390772f81ce3ff83439b8d7cee7a9c57967b82fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4222d38dc6a8e1fb661532390772f81ce3ff83439b8d7cee7a9c57967b82fd", kill_on_drop: false }`
[INFO] [stdout] 7f4222d38dc6a8e1fb661532390772f81ce3ff83439b8d7cee7a9c57967b82fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc3a127e3e743445b24db76fda15a57985a5d5b8ef8634fc4c043d9cb3c9d3f8
[INFO] running `Command { std: "docker" "start" "-a" "bc3a127e3e743445b24db76fda15a57985a5d5b8ef8634fc4c043d9cb3c9d3f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling realm_io v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "bc3a127e3e743445b24db76fda15a57985a5d5b8ef8634fc4c043d9cb3c9d3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc3a127e3e743445b24db76fda15a57985a5d5b8ef8634fc4c043d9cb3c9d3f8", kill_on_drop: false }`
[INFO] [stdout] bc3a127e3e743445b24db76fda15a57985a5d5b8ef8634fc4c043d9cb3c9d3f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 161d6850ab4b0a0bca25a7fd2a4ef5c1134de5fde5dfba924d99c0da2c1eac73
[INFO] running `Command { std: "docker" "start" "-a" "161d6850ab4b0a0bca25a7fd2a4ef5c1134de5fde5dfba924d99c0da2c1eac73", kill_on_drop: false }`
[INFO] [stderr]    Compiling realm_io v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "161d6850ab4b0a0bca25a7fd2a4ef5c1134de5fde5dfba924d99c0da2c1eac73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161d6850ab4b0a0bca25a7fd2a4ef5c1134de5fde5dfba924d99c0da2c1eac73", kill_on_drop: false }`
[INFO] [stdout] 161d6850ab4b0a0bca25a7fd2a4ef5c1134de5fde5dfba924d99c0da2c1eac73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43562b456affad1c51cd34d1042dfc9d3fac2728740ee5fcc7e935df0f555d34
[INFO] running `Command { std: "docker" "start" "-a" "43562b456affad1c51cd34d1042dfc9d3fac2728740ee5fcc7e935df0f555d34", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/realm_io-ceb42de2915dca30)
[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 realm_io
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 1 previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.90.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --color auto --crate-name realm_io --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-263f5f69d01529dd.rlib --extern realm_io=/opt/rustwide/target/debug/deps/librealm_io-40947667260ff412.rlib --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-2888a0f58f674476.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-7de8c328b54a8ff7.rlib -C embed-bitcode=no --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("brutal-shutdown", "default", "peek", "statistic"))' --cap-lints=warn --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "43562b456affad1c51cd34d1042dfc9d3fac2728740ee5fcc7e935df0f555d34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43562b456affad1c51cd34d1042dfc9d3fac2728740ee5fcc7e935df0f555d34", kill_on_drop: false }`
[INFO] [stdout] 43562b456affad1c51cd34d1042dfc9d3fac2728740ee5fcc7e935df0f555d34