[INFO] fetching crate slings 0.3.47...
[INFO] testing slings-0.3.47 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate slings 0.3.47 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate slings 0.3.47
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slings 0.3.47
[INFO] tweaked toml for crates.io crate slings 0.3.47 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slings 0.3.47 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slings 0.3.47 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c6bf5af69a4c7be03501d91e5fe90cb203014d636227285c0286fb83f9d9aa
[INFO] running `Command { std: "docker" "start" "-a" "03c6bf5af69a4c7be03501d91e5fe90cb203014d636227285c0286fb83f9d9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c6bf5af69a4c7be03501d91e5fe90cb203014d636227285c0286fb83f9d9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c6bf5af69a4c7be03501d91e5fe90cb203014d636227285c0286fb83f9d9aa", kill_on_drop: false }`
[INFO] [stdout] 03c6bf5af69a4c7be03501d91e5fe90cb203014d636227285c0286fb83f9d9aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 938f142552af0f3fdc525d1c2606ff152df692462a388705529fbb99f1ecdce7
[INFO] running `Command { std: "docker" "start" "-a" "938f142552af0f3fdc525d1c2606ff152df692462a388705529fbb99f1ecdce7", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-uring v0.7.11
[INFO] [stderr]    Compiling slings v0.3.47 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "938f142552af0f3fdc525d1c2606ff152df692462a388705529fbb99f1ecdce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "938f142552af0f3fdc525d1c2606ff152df692462a388705529fbb99f1ecdce7", kill_on_drop: false }`
[INFO] [stdout] 938f142552af0f3fdc525d1c2606ff152df692462a388705529fbb99f1ecdce7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed01940ebf3b15167b092b5b4ac60f7064c71797c79c3419306c8d1b4b4dc91d
[INFO] running `Command { std: "docker" "start" "-a" "ed01940ebf3b15167b092b5b4ac60f7064c71797c79c3419306c8d1b4b4dc91d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling slings v0.3.47 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "ed01940ebf3b15167b092b5b4ac60f7064c71797c79c3419306c8d1b4b4dc91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed01940ebf3b15167b092b5b4ac60f7064c71797c79c3419306c8d1b4b4dc91d", kill_on_drop: false }`
[INFO] [stdout] ed01940ebf3b15167b092b5b4ac60f7064c71797c79c3419306c8d1b4b4dc91d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 011d8d812b3bec144734c877ffa48846ad340f82d6fd2d64e579ade2f1fe4b88
[INFO] running `Command { std: "docker" "start" "-a" "011d8d812b3bec144734c877ffa48846ad340f82d6fd2d64e579ade2f1fe4b88", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slings-beb368901b71f479)
[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 slings
[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" "011d8d812b3bec144734c877ffa48846ad340f82d6fd2d64e579ade2f1fe4b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011d8d812b3bec144734c877ffa48846ad340f82d6fd2d64e579ade2f1fe4b88", kill_on_drop: false }`
[INFO] [stdout] 011d8d812b3bec144734c877ffa48846ad340f82d6fd2d64e579ade2f1fe4b88