[INFO] cloning repository https://github.com/marlohaering/domination-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marlohaering/domination-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarlohaering%2Fdomination-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarlohaering%2Fdomination-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 035a9fc2e6034699aeb0f6d134d4d51f749918af
[INFO] checking marlohaering/domination-solver against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarlohaering%2Fdomination-solver" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marlohaering/domination-solver on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marlohaering/domination-solver
[INFO] finished tweaking git repo https://github.com/marlohaering/domination-solver
[INFO] tweaked toml for git repo https://github.com/marlohaering/domination-solver written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/marlohaering/domination-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a8f1247efbde141fbf179e1c8a8acd5cfdd8d70c7ea938519e20525c3d5a869
[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" "7a8f1247efbde141fbf179e1c8a8acd5cfdd8d70c7ea938519e20525c3d5a869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a8f1247efbde141fbf179e1c8a8acd5cfdd8d70c7ea938519e20525c3d5a869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a8f1247efbde141fbf179e1c8a8acd5cfdd8d70c7ea938519e20525c3d5a869", kill_on_drop: false }`
[INFO] [stdout] 7a8f1247efbde141fbf179e1c8a8acd5cfdd8d70c7ea938519e20525c3d5a869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c0f23042d4395ce843a0ae68a431ad613297e6477626490aaca95a961d41bb
[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" "66c0f23042d4395ce843a0ae68a431ad613297e6477626490aaca95a961d41bb", kill_on_drop: false }`
[INFO] [stderr]     Checking domination-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `create_test_graph`
[INFO] [stdout]    --> src/main.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn create_test_graph() -> Graph<&'static str, (), Undirected> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_graph`
[INFO] [stdout]    --> src/main.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn create_test_graph() -> Graph<&'static str, (), Undirected> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "66c0f23042d4395ce843a0ae68a431ad613297e6477626490aaca95a961d41bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c0f23042d4395ce843a0ae68a431ad613297e6477626490aaca95a961d41bb", kill_on_drop: false }`
[INFO] [stdout] 66c0f23042d4395ce843a0ae68a431ad613297e6477626490aaca95a961d41bb