[INFO] cloning repository https://github.com/benlepsch/benbot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benlepsch/benbot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlepsch%2Fbenbot-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlepsch%2Fbenbot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23510b09fbe5c790f95f7604747d560bab0353e6
[INFO] checking benlepsch/benbot-rs against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlepsch%2Fbenbot-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benlepsch/benbot-rs
[INFO] finished tweaking git repo https://github.com/benlepsch/benbot-rs
[INFO] tweaked toml for git repo https://github.com/benlepsch/benbot-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benlepsch/benbot-rs on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benlepsch/benbot-rs 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a43ba7901d20b4e08999809c8086f3ea399d1cf7539351dfee7802dabb073cc6", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `why`
[INFO] [stdout]   --> src/commands.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             if let Err(why) = ctx.author().id.direct_message(&ctx, msg).await {
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 29 |                 ctx.say("error sending message: {why:?}").await?;
[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] 29 |                 format!(ctx.say("error sending message: {why:?}")).await?;
[INFO] [stdout]    |                 ++++++++                                         +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 28 |             if let Err(_why) = ctx.author().id.direct_message(&ctx, msg).await {
[INFO] [stdout]    |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `why`
[INFO] [stdout]   --> src/commands.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             if let Err(why) = ctx.author().id.direct_message(&ctx, msg).await {
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 29 |                 ctx.say("error sending message: {why:?}").await?;
[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] 29 |                 format!(ctx.say("error sending message: {why:?}")).await?;
[INFO] [stdout]    |                 ++++++++                                         +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 28 |             if let Err(_why) = ctx.author().id.direct_message(&ctx, msg).await {
[INFO] [stdout]    |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `std::future::Future` that must be used
[INFO] [stdout]   --> src/commands.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         ctx.say("you don't have permission to run that comand");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `std::future::Future` that must be used
[INFO] [stdout]   --> src/commands.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         ctx.say("you don't have permission to run that comand");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "a43ba7901d20b4e08999809c8086f3ea399d1cf7539351dfee7802dabb073cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43ba7901d20b4e08999809c8086f3ea399d1cf7539351dfee7802dabb073cc6", kill_on_drop: false }`
[INFO] [stdout] a43ba7901d20b4e08999809c8086f3ea399d1cf7539351dfee7802dabb073cc6