[INFO] fetching crate alerts 0.1.1...
[INFO] checking alerts-0.1.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate alerts 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate alerts 0.1.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alerts 0.1.1
[INFO] finished tweaking crates.io crate alerts 0.1.1
[INFO] tweaked toml for crates.io crate alerts 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deb01557d9bff9c06ebf7a280ec10914bae40c2184bea2149fb02e0eeaec45e3
[INFO] running `Command { std: "docker" "start" "-a" "deb01557d9bff9c06ebf7a280ec10914bae40c2184bea2149fb02e0eeaec45e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deb01557d9bff9c06ebf7a280ec10914bae40c2184bea2149fb02e0eeaec45e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb01557d9bff9c06ebf7a280ec10914bae40c2184bea2149fb02e0eeaec45e3", kill_on_drop: false }`
[INFO] [stdout] deb01557d9bff9c06ebf7a280ec10914bae40c2184bea2149fb02e0eeaec45e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d9cd0635e1b14ba8acb763dbdf66091c2108139f362c7f436ea7bfb0019ff83
[INFO] running `Command { std: "docker" "start" "-a" "6d9cd0635e1b14ba8acb763dbdf66091c2108139f362c7f436ea7bfb0019ff83", kill_on_drop: false }`
[INFO] [stderr]     Checking alerts v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/alert.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn alert_message(head: &str,msg: &str,_wflags: i32) -> Result<(), Error> {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/alert.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn alert_message(head: &str,msg: &str,_wflags: i32) -> Result<(), Error> {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 0.37s
[INFO] running `Command { std: "docker" "inspect" "6d9cd0635e1b14ba8acb763dbdf66091c2108139f362c7f436ea7bfb0019ff83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9cd0635e1b14ba8acb763dbdf66091c2108139f362c7f436ea7bfb0019ff83", kill_on_drop: false }`
[INFO] [stdout] 6d9cd0635e1b14ba8acb763dbdf66091c2108139f362c7f436ea7bfb0019ff83