[INFO] cloning repository https://github.com/ElioenaiFerrari/elephant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ElioenaiFerrari/elephant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElioenaiFerrari%2Felephant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElioenaiFerrari%2Felephant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4df901b65d6ba6b68d2d58ced2b01b38ed117e7
[INFO] checking ElioenaiFerrari/elephant against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElioenaiFerrari%2Felephant" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ElioenaiFerrari/elephant
[INFO] finished tweaking git repo https://github.com/ElioenaiFerrari/elephant
[INFO] tweaked toml for git repo https://github.com/ElioenaiFerrari/elephant written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ElioenaiFerrari/elephant on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ElioenaiFerrari/elephant 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 381568bb7d2e5eab521b7256ec62e69d2df677dc221226d8756388b3a9b2bb1f
[INFO] running `Command { std: "docker" "start" "-a" "381568bb7d2e5eab521b7256ec62e69d2df677dc221226d8756388b3a9b2bb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "381568bb7d2e5eab521b7256ec62e69d2df677dc221226d8756388b3a9b2bb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381568bb7d2e5eab521b7256ec62e69d2df677dc221226d8756388b3a9b2bb1f", kill_on_drop: false }`
[INFO] [stdout] 381568bb7d2e5eab521b7256ec62e69d2df677dc221226d8756388b3a9b2bb1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 345860c293011c654da391b7190ca0075884a378a0bedba0ea168544a3537e51
[INFO] running `Command { std: "docker" "start" "-a" "345860c293011c654da391b7190ca0075884a378a0bedba0ea168544a3537e51", kill_on_drop: false }`
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[INFO] [stderr]     Checking libp2p-tls v0.3.0
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[INFO] [stderr]     Checking libp2p-tcp v0.41.0
[INFO] [stderr]     Checking libp2p-ping v0.44.1
[INFO] [stderr]     Checking libp2p-allow-block-list v0.3.0
[INFO] [stderr]     Checking libp2p-connection-limits v0.3.1
[INFO] [stderr]     Checking libp2p-kad v0.45.3
[INFO] [stderr]     Checking libp2p-gossipsub v0.46.1
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[INFO] [stderr]     Checking libp2p-dns v0.41.1
[INFO] [stderr]     Checking libp2p v0.53.2
[INFO] [stderr]     Checking elephant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `libp2p_kad::store::RecordStore`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libp2p_kad::store::RecordStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p_kad::store::RecordStore`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libp2p_kad::store::RecordStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.73s
[INFO] running `Command { std: "docker" "inspect" "345860c293011c654da391b7190ca0075884a378a0bedba0ea168544a3537e51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "345860c293011c654da391b7190ca0075884a378a0bedba0ea168544a3537e51", kill_on_drop: false }`
[INFO] [stdout] 345860c293011c654da391b7190ca0075884a378a0bedba0ea168544a3537e51