[INFO] fetching crate arangors 0.4.4...
[INFO] checking arangors-0.4.4 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate arangors 0.4.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate arangors 0.4.4 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arangors 0.4.4
[INFO] finished tweaking crates.io crate arangors 0.4.4
[INFO] tweaked toml for crates.io crate arangors 0.4.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate arangors 0.4.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spinning_top v0.2.2
[INFO] [stderr]   Downloaded serde_qs v0.6.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaf176b905f284c29358db9cbc34d04a2828f3260820c1e757c45c58225c5cd0
[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" "eaf176b905f284c29358db9cbc34d04a2828f3260820c1e757c45c58225c5cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaf176b905f284c29358db9cbc34d04a2828f3260820c1e757c45c58225c5cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf176b905f284c29358db9cbc34d04a2828f3260820c1e757c45c58225c5cd0", kill_on_drop: false }`
[INFO] [stdout] eaf176b905f284c29358db9cbc34d04a2828f3260820c1e757c45c58225c5cd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--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] d85d2e9f30eeab304c441d1deff5e86db043c08d017733a28c13db86c6faa2f0
[INFO] running `Command { std: "docker" "start" "-a" "d85d2e9f30eeab304c441d1deff5e86db043c08d017733a28c13db86c6faa2f0", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/document.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut database = conn.db("test_db").await?;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 2m 36s
[INFO] running `Command { std: "docker" "inspect" "d85d2e9f30eeab304c441d1deff5e86db043c08d017733a28c13db86c6faa2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d85d2e9f30eeab304c441d1deff5e86db043c08d017733a28c13db86c6faa2f0", kill_on_drop: false }`
[INFO] [stdout] d85d2e9f30eeab304c441d1deff5e86db043c08d017733a28c13db86c6faa2f0