[INFO] cloning repository https://github.com/bearcove/soprintln
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bearcove/soprintln" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fsoprintln", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fsoprintln'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79ab1bf278e2c06c9d7b7c40055d30b2506d65d2
[INFO] checking bearcove/soprintln against master#4cf5f9580233c36f6bc8db76e282ba8a1c1ea491 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fsoprintln" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bearcove/soprintln
[INFO] finished tweaking git repo https://github.com/bearcove/soprintln
[INFO] tweaked toml for git repo https://github.com/bearcove/soprintln written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bearcove/soprintln on toolchain 4cf5f9580233c36f6bc8db76e282ba8a1c1ea491
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bearcove/soprintln 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" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "fetch" "--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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aad534d93404fafe376af10b58cacec1b45cf75f20654b92cb90037d968acef4
[INFO] running `Command { std: "docker" "start" "-a" "aad534d93404fafe376af10b58cacec1b45cf75f20654b92cb90037d968acef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aad534d93404fafe376af10b58cacec1b45cf75f20654b92cb90037d968acef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad534d93404fafe376af10b58cacec1b45cf75f20654b92cb90037d968acef4", kill_on_drop: false }`
[INFO] [stdout] aad534d93404fafe376af10b58cacec1b45cf75f20654b92cb90037d968acef4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41e4e346eeb66730208ac69de248ddfa782787cc05f70fa76a930c8e313e68e8
[INFO] running `Command { std: "docker" "start" "-a" "41e4e346eeb66730208ac69de248ddfa782787cc05f70fa76a930c8e313e68e8", kill_on_drop: false }`
[INFO] [stderr]     Checking soprintln v3.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lib.rs:220:17
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let b = Beacon::new("test", 0x12345678 + i);
[INFO] [stdout]     |                 ^
[INFO] [stdout] 221 |             soprintln!("{b}");
[INFO] [stdout]     |                        ----- you might have meant to use string interpolation in this string literal
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]     |
[INFO] [stdout] 221 |             soprintln!(format!("{b}"));
[INFO] [stdout]     |                        ++++++++     +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let _b = Beacon::new("test", 0x12345678 + i);
[INFO] [stdout]     |                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "41e4e346eeb66730208ac69de248ddfa782787cc05f70fa76a930c8e313e68e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e4e346eeb66730208ac69de248ddfa782787cc05f70fa76a930c8e313e68e8", kill_on_drop: false }`
[INFO] [stdout] 41e4e346eeb66730208ac69de248ddfa782787cc05f70fa76a930c8e313e68e8