[INFO] cloning repository https://github.com/aklk1ng/rua
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aklk1ng/rua" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklk1ng%2Frua", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklk1ng%2Frua'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6368c760a1df93a3cd7bf4091726d3ccc5facf57
[INFO] checking aklk1ng/rua/6368c760a1df93a3cd7bf4091726d3ccc5facf57 against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklk1ng%2Frua" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aklk1ng/rua on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aklk1ng/rua
[INFO] finished tweaking git repo https://github.com/aklk1ng/rua
[INFO] tweaked toml for git repo https://github.com/aklk1ng/rua written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aklk1ng/rua 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46935cd83b655aa662289cb5c62126a23fdf873e77db2b0b38e41a588675ffa1
[INFO] running `Command { std: "docker" "start" "-a" "46935cd83b655aa662289cb5c62126a23fdf873e77db2b0b38e41a588675ffa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46935cd83b655aa662289cb5c62126a23fdf873e77db2b0b38e41a588675ffa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46935cd83b655aa662289cb5c62126a23fdf873e77db2b0b38e41a588675ffa1", kill_on_drop: false }`
[INFO] [stdout] 46935cd83b655aa662289cb5c62126a23fdf873e77db2b0b38e41a588675ffa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d457f9afd1622c1329ed83a67bf81b9d3b539126056a6f92220df9a5d91589e4
[INFO] running `Command { std: "docker" "start" "-a" "d457f9afd1622c1329ed83a67bf81b9d3b539126056a6f92220df9a5d91589e4", kill_on_drop: false }`
[INFO] [stderr]     Checking rua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/value.rs:70:41
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Value::Float(f) => unsafe { mem::transmute::<f64, i64>(*f).hash(state) },
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]    |
[INFO] [stdout] 70 -             Value::Float(f) => unsafe { mem::transmute::<f64, i64>(*f).hash(state) },
[INFO] [stdout] 70 +             Value::Float(f) => unsafe { f64::to_bits(*f).cast_signed().hash(state) },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/value.rs:70:41
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Value::Float(f) => unsafe { mem::transmute::<f64, i64>(*f).hash(state) },
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]    |
[INFO] [stdout] 70 -             Value::Float(f) => unsafe { mem::transmute::<f64, i64>(*f).hash(state) },
[INFO] [stdout] 70 +             Value::Float(f) => unsafe { f64::to_bits(*f).cast_signed().hash(state) },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "d457f9afd1622c1329ed83a67bf81b9d3b539126056a6f92220df9a5d91589e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d457f9afd1622c1329ed83a67bf81b9d3b539126056a6f92220df9a5d91589e4", kill_on_drop: false }`
[INFO] [stdout] d457f9afd1622c1329ed83a67bf81b9d3b539126056a6f92220df9a5d91589e4