[INFO] crate petgraph-evcxr 0.1.1 is already in cache
[INFO] checking petgraph-evcxr-0.1.1 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate petgraph-evcxr 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate petgraph-evcxr 0.1.1 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate petgraph-evcxr 0.1.1
[INFO] finished tweaking crates.io crate petgraph-evcxr 0.1.1
[INFO] tweaked toml for crates.io crate petgraph-evcxr 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fdcf082c00d2f1b8e22296fcab628d59ec048bc7d1aaf291668a2a3bf5731081
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fdcf082c00d2f1b8e22296fcab628d59ec048bc7d1aaf291668a2a3bf5731081"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking petgraph-evcxr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/lib.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::{self, Display};
[INFO] [stderr]   |                      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/lib.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Data`, `NodeRef`
[INFO] [stderr]  --> src/lib.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::petgraph::visit::{Data, GraphProp, NodeRef};
[INFO] [stderr]   |                              ^^^^             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `EdgeRef`
[INFO] [stderr]   --> src/lib.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::petgraph::visit::{EdgeRef, IntoEdgeReferences, IntoNodeReferences, NodeIndexable};
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `petgraph::graph::Graph`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use petgraph::graph::Graph;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | /     child
[INFO] [stderr] 36 | |         .stdin
[INFO] [stderr] 37 | |         .as_mut()
[INFO] [stderr] 38 | |         .unwrap()
[INFO] [stderr] 39 | |         .write_fmt(format_args!("{}", dot));
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/lib.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::{self, Display};
[INFO] [stderr]   |                      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/lib.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Data`, `NodeRef`
[INFO] [stderr]  --> src/lib.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::petgraph::visit::{Data, GraphProp, NodeRef};
[INFO] [stderr]   |                              ^^^^             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `EdgeRef`
[INFO] [stderr]   --> src/lib.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::petgraph::visit::{EdgeRef, IntoEdgeReferences, IntoNodeReferences, NodeIndexable};
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `petgraph::graph::Graph`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use petgraph::graph::Graph;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | /     child
[INFO] [stderr] 36 | |         .stdin
[INFO] [stderr] 37 | |         .as_mut()
[INFO] [stderr] 38 | |         .unwrap()
[INFO] [stderr] 39 | |         .write_fmt(format_args!("{}", dot));
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `"docker" "inspect" "fdcf082c00d2f1b8e22296fcab628d59ec048bc7d1aaf291668a2a3bf5731081"`
[INFO] running `"docker" "rm" "-f" "fdcf082c00d2f1b8e22296fcab628d59ec048bc7d1aaf291668a2a3bf5731081"`
[INFO] [stdout] fdcf082c00d2f1b8e22296fcab628d59ec048bc7d1aaf291668a2a3bf5731081
