[INFO] cloning repository https://github.com/dpwdec/wfc-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpwdec/wfc-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpwdec%2Fwfc-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpwdec%2Fwfc-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a5e4a281b371a130e9dcc481b76404389d0eed
[INFO] checking dpwdec/wfc-rust against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpwdec%2Fwfc-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpwdec/wfc-rust on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dpwdec/wfc-rust
[INFO] finished tweaking git repo https://github.com/dpwdec/wfc-rust
[INFO] tweaked toml for git repo https://github.com/dpwdec/wfc-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dpwdec/wfc-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", 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] 4a09d9388b041109176aab505a791d744ca7febc7f4bf83b5df088fc4756fd42
[INFO] running `Command { std: "docker" "start" "-a" "4a09d9388b041109176aab505a791d744ca7febc7f4bf83b5df088fc4756fd42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a09d9388b041109176aab505a791d744ca7febc7f4bf83b5df088fc4756fd42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a09d9388b041109176aab505a791d744ca7febc7f4bf83b5df088fc4756fd42", kill_on_drop: false }`
[INFO] [stdout] 4a09d9388b041109176aab505a791d744ca7febc7f4bf83b5df088fc4756fd42
[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" "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58356ec66cb4ea845601c92b85828b2f89fa2237e128d17f421ccd92c7c220ee
[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" "58356ec66cb4ea845601c92b85828b2f89fa2237e128d17f421ccd92c7c220ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking wfc-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VertexLabel`
[INFO] [stdout]  --> src/io/text_parser.rs:5:77
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::graph::graph::{Graph, Labels, Edges, EdgeDirection, VertexIndex, VertexLabel};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Edges`
[INFO] [stdout]  --> src/main.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::graph::graph::{Graph, Edges, Labels};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `hash_map`, `hash_set`
[INFO] [stdout]  --> src/main.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utils::{hash_set, hash_map};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VertexLabel`
[INFO] [stdout]  --> src/io/text_parser.rs:5:77
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::graph::graph::{Graph, Labels, Edges, EdgeDirection, VertexIndex, VertexLabel};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Edges`
[INFO] [stdout]  --> src/main.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::graph::graph::{Graph, Edges, Labels};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `hash_map`, `hash_set`
[INFO] [stdout]  --> src/main.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utils::{hash_set, hash_map};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash_map`
[INFO] [stdout]  --> src/utils.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn hash_map<K: Hash + Eq + Clone, V: Clone>(data: &[(K, V)]) -> HashMap<K, V> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.93s
[INFO] running `Command { std: "docker" "inspect" "58356ec66cb4ea845601c92b85828b2f89fa2237e128d17f421ccd92c7c220ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58356ec66cb4ea845601c92b85828b2f89fa2237e128d17f421ccd92c7c220ee", kill_on_drop: false }`
[INFO] [stdout] 58356ec66cb4ea845601c92b85828b2f89fa2237e128d17f421ccd92c7c220ee