[INFO] fetching crate petgraph 0.6.0...
[INFO] checking petgraph-0.6.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate petgraph 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate petgraph 0.6.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate petgraph 0.6.0
[INFO] finished tweaking crates.io crate petgraph 0.6.0
[INFO] tweaked toml for crates.io crate petgraph 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d80537ac46f6f87927571ab15d908ec8fda3cc2a77147e3eae6a98e2442d608f
[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" "d80537ac46f6f87927571ab15d908ec8fda3cc2a77147e3eae6a98e2442d608f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d80537ac46f6f87927571ab15d908ec8fda3cc2a77147e3eae6a98e2442d608f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80537ac46f6f87927571ab15d908ec8fda3cc2a77147e3eae6a98e2442d608f", kill_on_drop: false }`
[INFO] [stdout] d80537ac46f6f87927571ab15d908ec8fda3cc2a77147e3eae6a98e2442d608f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] cf5b1de2d3ec9e6acd0ce16ac32ed3441f072ef6e0ccab628a2dc11c2bca726a
[INFO] running `Command { std: "docker" "start" "-a" "cf5b1de2d3ec9e6acd0ce16ac32ed3441f072ef6e0ccab628a2dc11c2bca726a", kill_on_drop: false }`
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking defmac v0.2.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking petgraph v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rawslice v0.1.1
[INFO] [stderr]     Checking odds v0.4.0
[INFO] [stdout] warning: field is never read: `first_error`
[INFO] [stdout]    --> src/csr.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     first_error: (usize, usize),
[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] [stdout] warning: field is never read: `a`
[INFO] [stdout]     --> tests/graph.rs:1879:9
[INFO] [stdout]      |
[INFO] [stdout] 1879 |         a: i32,
[INFO] [stdout]      |         ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]     --> tests/graph.rs:1880:9
[INFO] [stdout]      |
[INFO] [stdout] 1880 |         b: &'static str,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_error`
[INFO] [stdout]    --> src/csr.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     first_error: (usize, usize),
[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 5.83s
[INFO] running `Command { std: "docker" "inspect" "cf5b1de2d3ec9e6acd0ce16ac32ed3441f072ef6e0ccab628a2dc11c2bca726a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5b1de2d3ec9e6acd0ce16ac32ed3441f072ef6e0ccab628a2dc11c2bca726a", kill_on_drop: false }`
[INFO] [stdout] cf5b1de2d3ec9e6acd0ce16ac32ed3441f072ef6e0ccab628a2dc11c2bca726a