[INFO] fetching crate koper 0.3.0...
[INFO] testing koper-0.3.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate koper 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate koper 0.3.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate koper 0.3.0
[INFO] finished tweaking crates.io crate koper 0.3.0
[INFO] tweaked toml for crates.io crate koper 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3702a340d9c5ea636fa0e4822b0f2483de5760cd0cbce942a3e6d2242a8ad797
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3702a340d9c5ea636fa0e4822b0f2483de5760cd0cbce942a3e6d2242a8ad797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3702a340d9c5ea636fa0e4822b0f2483de5760cd0cbce942a3e6d2242a8ad797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3702a340d9c5ea636fa0e4822b0f2483de5760cd0cbce942a3e6d2242a8ad797", kill_on_drop: false }`
[INFO] [stdout] 3702a340d9c5ea636fa0e4822b0f2483de5760cd0cbce942a3e6d2242a8ad797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8bc84dcaa6f3b9c794304601d55c77dbc8d2bdd596b6f3d4538e9f05e206e1ed
[INFO] running `Command { std: "docker" "start" "-a" "8bc84dcaa6f3b9c794304601d55c77dbc8d2bdd596b6f3d4538e9f05e206e1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling koper v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `poll_fn_async`
[INFO] [stdout]   --> src/future/poll_fn.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub async fn poll_fn_async<F, T>(f: F) -> T
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "8bc84dcaa6f3b9c794304601d55c77dbc8d2bdd596b6f3d4538e9f05e206e1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc84dcaa6f3b9c794304601d55c77dbc8d2bdd596b6f3d4538e9f05e206e1ed", kill_on_drop: false }`
[INFO] [stdout] 8bc84dcaa6f3b9c794304601d55c77dbc8d2bdd596b6f3d4538e9f05e206e1ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fbe206053c5b984b6e69323caac6a0742ff75d34a4ad7ff8e50e4cacc9a1772
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1fbe206053c5b984b6e69323caac6a0742ff75d34a4ad7ff8e50e4cacc9a1772", kill_on_drop: false }`
[INFO] [stderr]    Compiling koper v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `poll_fn_async`
[INFO] [stdout]   --> src/future/poll_fn.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub async fn poll_fn_async<F, T>(f: F) -> T
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll_fn_async`
[INFO] [stdout]   --> src/future/poll_fn.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub async fn poll_fn_async<F, T>(f: F) -> T
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "1fbe206053c5b984b6e69323caac6a0742ff75d34a4ad7ff8e50e4cacc9a1772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fbe206053c5b984b6e69323caac6a0742ff75d34a4ad7ff8e50e4cacc9a1772", kill_on_drop: false }`
[INFO] [stdout] 1fbe206053c5b984b6e69323caac6a0742ff75d34a4ad7ff8e50e4cacc9a1772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8b3f587266b5599caa7f79edcd1dd3d0bf4918879a9e47f5e8bb4b530c3641f7
[INFO] running `Command { std: "docker" "start" "-a" "8b3f587266b5599caa7f79edcd1dd3d0bf4918879a9e47f5e8bb4b530c3641f7", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `poll_fn_async`
[INFO] [stderr]   --> src/future/poll_fn.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub async fn poll_fn_async<F, T>(f: F) -> T
[INFO] [stderr]    |              ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poll_fn_async`
[INFO] [stderr]   --> src/future/poll_fn.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub async fn poll_fn_async<F, T>(f: F) -> T
[INFO] [stderr]    |              ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/koper-1fb22ff663454966
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests koper
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b3f587266b5599caa7f79edcd1dd3d0bf4918879a9e47f5e8bb4b530c3641f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3f587266b5599caa7f79edcd1dd3d0bf4918879a9e47f5e8bb4b530c3641f7", kill_on_drop: false }`
[INFO] [stdout] 8b3f587266b5599caa7f79edcd1dd3d0bf4918879a9e47f5e8bb4b530c3641f7
