[INFO] fetching crate scoped_tasks_prototype 0.1.0...
[INFO] testing scoped_tasks_prototype-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate scoped_tasks_prototype 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate scoped_tasks_prototype 0.1.0
[INFO] finished tweaking crates.io crate scoped_tasks_prototype 0.1.0
[INFO] tweaked toml for crates.io crate scoped_tasks_prototype 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scoped_tasks_prototype 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 033d2c759a2f0e0f2eae2e0cba8144d1d83fb044c0f37e7da147e3cbdd318cf7
[INFO] running `Command { std: "docker" "start" "-a" "033d2c759a2f0e0f2eae2e0cba8144d1d83fb044c0f37e7da147e3cbdd318cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "033d2c759a2f0e0f2eae2e0cba8144d1d83fb044c0f37e7da147e3cbdd318cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033d2c759a2f0e0f2eae2e0cba8144d1d83fb044c0f37e7da147e3cbdd318cf7", kill_on_drop: false }`
[INFO] [stdout] 033d2c759a2f0e0f2eae2e0cba8144d1d83fb044c0f37e7da147e3cbdd318cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a7d471201ea4b9a47d597399520392da111ca073d0bf971cd86b3cd7a75ef94c
[INFO] running `Command { std: "docker" "start" "-a" "a7d471201ea4b9a47d597399520392da111ca073d0bf971cd86b3cd7a75ef94c", kill_on_drop: false }`
[INFO] [stderr]    Compiling scoped_tasks_prototype v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a7d471201ea4b9a47d597399520392da111ca073d0bf971cd86b3cd7a75ef94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d471201ea4b9a47d597399520392da111ca073d0bf971cd86b3cd7a75ef94c", kill_on_drop: false }`
[INFO] [stdout] a7d471201ea4b9a47d597399520392da111ca073d0bf971cd86b3cd7a75ef94c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 37aee200bff070e20ea8c4abb47864fa17e7b06f9de0f21601cbafc44e847356
[INFO] running `Command { std: "docker" "start" "-a" "37aee200bff070e20ea8c4abb47864fa17e7b06f9de0f21601cbafc44e847356", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling scoped_tasks_prototype v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "37aee200bff070e20ea8c4abb47864fa17e7b06f9de0f21601cbafc44e847356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37aee200bff070e20ea8c4abb47864fa17e7b06f9de0f21601cbafc44e847356", kill_on_drop: false }`
[INFO] [stdout] 37aee200bff070e20ea8c4abb47864fa17e7b06f9de0f21601cbafc44e847356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e91d99d6626b3e78db9319f62ba0f79e75d74d1d0cbea296ff0b373c04b39ef7
[INFO] running `Command { std: "docker" "start" "-a" "e91d99d6626b3e78db9319f62ba0f79e75d74d1d0cbea296ff0b373c04b39ef7", 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/scoped_tasks_prototype-ffe1403ccdd2ca06)
[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]      Running tests/threads.rs (/opt/rustwide/target/debug/deps/threads-68d26d50003bc941)
[INFO] [stderr]      Running tests/tokio.rs (/opt/rustwide/target/debug/deps/tokio-fcc405448975f03c)
[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] [stderr]    Doc-tests scoped_tasks_prototype
[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" "e91d99d6626b3e78db9319f62ba0f79e75d74d1d0cbea296ff0b373c04b39ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91d99d6626b3e78db9319f62ba0f79e75d74d1d0cbea296ff0b373c04b39ef7", kill_on_drop: false }`
[INFO] [stdout] e91d99d6626b3e78db9319f62ba0f79e75d74d1d0cbea296ff0b373c04b39ef7