[INFO] cloning repository https://github.com/taku-y/learn-petgraph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taku-y/learn-petgraph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8463a153eb5cce5c5868823e6b984245f99e44b3
[INFO] checking taku-y/learn-petgraph against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/taku-y/learn-petgraph
[INFO] finished tweaking git repo https://github.com/taku-y/learn-petgraph
[INFO] tweaked toml for git repo https://github.com/taku-y/learn-petgraph written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/taku-y/learn-petgraph on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/taku-y/learn-petgraph 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded hashbrown v0.9.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aacfac4c88d6ca493260f44be8cfeb50141027b2ae3855db11077e5b19478c8a
[INFO] running `Command { std: "docker" "start" "-a" "aacfac4c88d6ca493260f44be8cfeb50141027b2ae3855db11077e5b19478c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aacfac4c88d6ca493260f44be8cfeb50141027b2ae3855db11077e5b19478c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aacfac4c88d6ca493260f44be8cfeb50141027b2ae3855db11077e5b19478c8a", kill_on_drop: false }`
[INFO] [stdout] aacfac4c88d6ca493260f44be8cfeb50141027b2ae3855db11077e5b19478c8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8996edee03584aa6563ca30a36bfec4d2eab1a26c0f2956088b2137f1776781b
[INFO] running `Command { std: "docker" "start" "-a" "8996edee03584aa6563ca30a36bfec4d2eab1a26c0f2956088b2137f1776781b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking learn-petgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> examples/test2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ix` is never read
[INFO] [stdout]   --> examples/test3.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct MyEdge {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 12 |     ix: u32
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "8996edee03584aa6563ca30a36bfec4d2eab1a26c0f2956088b2137f1776781b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8996edee03584aa6563ca30a36bfec4d2eab1a26c0f2956088b2137f1776781b", kill_on_drop: false }`
[INFO] [stdout] 8996edee03584aa6563ca30a36bfec4d2eab1a26c0f2956088b2137f1776781b
