[INFO] fetching crate libpeer 0.0.1...
[INFO] checking libpeer-0.0.1 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate libpeer 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libpeer 0.0.1 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpeer 0.0.1
[INFO] finished tweaking crates.io crate libpeer 0.0.1
[INFO] tweaked toml for crates.io crate libpeer 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c838e90147d45b1c9beefa8bb3c8f8505ce58c50ef9db8a9d0ea992274e9dbe9
[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" "c838e90147d45b1c9beefa8bb3c8f8505ce58c50ef9db8a9d0ea992274e9dbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c838e90147d45b1c9beefa8bb3c8f8505ce58c50ef9db8a9d0ea992274e9dbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c838e90147d45b1c9beefa8bb3c8f8505ce58c50ef9db8a9d0ea992274e9dbe9", kill_on_drop: false }`
[INFO] [stdout] c838e90147d45b1c9beefa8bb3c8f8505ce58c50ef9db8a9d0ea992274e9dbe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] 0234e0396a3f020598afe8f36e97e4247d5ec24a68053c265743770be48230dd
[INFO] running `Command { std: "docker" "start" "-a" "0234e0396a3f020598afe8f36e97e4247d5ec24a68053c265743770be48230dd", kill_on_drop: false }`
[INFO] [stderr]     Checking libpeer v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `boomer`
[INFO] [stdout]  --> src/git/boom.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn boomer() -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `connect`
[INFO] [stdout]  --> src/git/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn connect() -> i32 {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_git`
[INFO] [stdout]   --> src/lib.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn handle_git() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_git`
[INFO] [stdout]   --> src/lib.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn handle_git() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 0.21s
[INFO] running `Command { std: "docker" "inspect" "0234e0396a3f020598afe8f36e97e4247d5ec24a68053c265743770be48230dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0234e0396a3f020598afe8f36e97e4247d5ec24a68053c265743770be48230dd", kill_on_drop: false }`
[INFO] [stdout] 0234e0396a3f020598afe8f36e97e4247d5ec24a68053c265743770be48230dd