[INFO] fetching crate netview 0.4.0...
[INFO] checking netview-0.4.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate netview 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate netview 0.4.0
[INFO] finished tweaking crates.io crate netview 0.4.0
[INFO] tweaked toml for crates.io crate netview 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate netview 0.4.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate netview 0.4.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strip-ansi-escapes v0.1.1
[INFO] [stderr]   Downloaded ansi-parser v0.8.0
[INFO] [stderr]   Downloaded tabled v0.5.0
[INFO] [stderr]   Downloaded tabled_derive v0.2.0
[INFO] [stderr]   Downloaded ansi-str v0.1.1
[INFO] [stderr]   Downloaded bgzip v0.2.2
[INFO] [stderr]   Downloaded needletail v0.5.1
[INFO] [stderr]   Downloaded font-kit v0.14.2
[INFO] [stderr]   Downloaded niffler v2.5.0
[INFO] [stderr]   Downloaded papergrid v0.2.1
[INFO] [stderr]   Downloaded dwrote v0.11.1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09cb0e6a5e7bb29650ce0043b838d7621f63b8dc51736ac6f502dfb8257d88ed
[INFO] running `Command { std: "docker" "start" "-a" "09cb0e6a5e7bb29650ce0043b838d7621f63b8dc51736ac6f502dfb8257d88ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09cb0e6a5e7bb29650ce0043b838d7621f63b8dc51736ac6f502dfb8257d88ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cb0e6a5e7bb29650ce0043b838d7621f63b8dc51736ac6f502dfb8257d88ed", kill_on_drop: false }`
[INFO] [stdout] 09cb0e6a5e7bb29650ce0043b838d7621f63b8dc51736ac6f502dfb8257d88ed
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 522c000937e5622ce8e51c64c25de5be020ea900b6a67c611df3fe849294d1ec
[INFO] running `Command { std: "docker" "start" "-a" "522c000937e5622ce8e51c64c25de5be020ea900b6a67c611df3fe849294d1ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
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[INFO] [stderr]     Checking netview v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/netview.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn label_nodes(&self, labels: Vec<Option<String>>) -> Result<(), NetviewError> {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/netview.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn label_nodes(&self, labels: Vec<Option<String>>) -> Result<(), NetviewError> {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_test_graph` is never used
[INFO] [stdout]    --> src/mknn.rs:702:8
[INFO] [stdout]     |
[INFO] [stdout] 702 |     fn setup_test_graph() -> Graph<&'static str, i32> {
[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 33.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "522c000937e5622ce8e51c64c25de5be020ea900b6a67c611df3fe849294d1ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522c000937e5622ce8e51c64c25de5be020ea900b6a67c611df3fe849294d1ec", kill_on_drop: false }`
[INFO] [stdout] 522c000937e5622ce8e51c64c25de5be020ea900b6a67c611df3fe849294d1ec