[INFO] fetching crate sparse_graph 0.1.3...
[INFO] testing sparse_graph-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate sparse_graph 0.1.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sparse_graph 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sparse_graph 0.1.3
[INFO] finished tweaking crates.io crate sparse_graph 0.1.3
[INFO] tweaked toml for crates.io crate sparse_graph 0.1.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 988f782bfeb00e43b912a634dc0e88102e3196f1b87fbd38d5be695396fe210f
[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" "988f782bfeb00e43b912a634dc0e88102e3196f1b87fbd38d5be695396fe210f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "988f782bfeb00e43b912a634dc0e88102e3196f1b87fbd38d5be695396fe210f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988f782bfeb00e43b912a634dc0e88102e3196f1b87fbd38d5be695396fe210f", kill_on_drop: false }`
[INFO] [stdout] 988f782bfeb00e43b912a634dc0e88102e3196f1b87fbd38d5be695396fe210f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2021-09-08" "build" "--frozen" "--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] 229d536d74c939af12425eb9672ba8f16ebb0cee040cb0f8188e9d12688aaeab
[INFO] running `Command { std: "docker" "start" "-a" "229d536d74c939af12425eb9672ba8f16ebb0cee040cb0f8188e9d12688aaeab", kill_on_drop: false }`
[INFO] [stderr]    Compiling sparse_graph v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "229d536d74c939af12425eb9672ba8f16ebb0cee040cb0f8188e9d12688aaeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "229d536d74c939af12425eb9672ba8f16ebb0cee040cb0f8188e9d12688aaeab", kill_on_drop: false }`
[INFO] [stdout] 229d536d74c939af12425eb9672ba8f16ebb0cee040cb0f8188e9d12688aaeab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--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] 6f7ef322dc9a632fb228bcc861215c38f22ce5117f607ae4ebb1c3ecd603e359
[INFO] running `Command { std: "docker" "start" "-a" "6f7ef322dc9a632fb228bcc861215c38f22ce5117f607ae4ebb1c3ecd603e359", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sparse_graph v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "6f7ef322dc9a632fb228bcc861215c38f22ce5117f607ae4ebb1c3ecd603e359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7ef322dc9a632fb228bcc861215c38f22ce5117f607ae4ebb1c3ecd603e359", kill_on_drop: false }`
[INFO] [stdout] 6f7ef322dc9a632fb228bcc861215c38f22ce5117f607ae4ebb1c3ecd603e359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen", 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] 826c8710ea684863af9557fdb8666fb0cb0b320b3c1222e543ecfe9039e23b72
[INFO] running `Command { std: "docker" "start" "-a" "826c8710ea684863af9557fdb8666fb0cb0b320b3c1222e543ecfe9039e23b72", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sparse_graph-06437cae361ba398)
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests sparse_graph
[INFO] [stdout] test tests::sparse_graph_new ... ok
[INFO] [stdout] test tests::scc_2 ... ok
[INFO] [stdout] test tests::scc_1 ... ok
[INFO] [stdout] test tests::scc_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - SparseGraph::new (line 27) ... ok
[INFO] [stdout] test src/lib.rs - SparseGraph::scc (line 56) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "826c8710ea684863af9557fdb8666fb0cb0b320b3c1222e543ecfe9039e23b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "826c8710ea684863af9557fdb8666fb0cb0b320b3c1222e543ecfe9039e23b72", kill_on_drop: false }`
[INFO] [stdout] 826c8710ea684863af9557fdb8666fb0cb0b320b3c1222e543ecfe9039e23b72