[INFO] fetching crate petgraph-graphml 2.0.1...
[INFO] testing petgraph-graphml-2.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate petgraph-graphml 2.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate petgraph-graphml 2.0.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate petgraph-graphml 2.0.1
[INFO] finished tweaking crates.io crate petgraph-graphml 2.0.1
[INFO] tweaked toml for crates.io crate petgraph-graphml 2.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "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] 8164bd4e8685a69d674b4b3cc5edd4bdc34ac7e13e7f2e86692e87d7d99ab3cc
[INFO] running `Command { std: "docker" "start" "-a" "8164bd4e8685a69d674b4b3cc5edd4bdc34ac7e13e7f2e86692e87d7d99ab3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8164bd4e8685a69d674b4b3cc5edd4bdc34ac7e13e7f2e86692e87d7d99ab3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8164bd4e8685a69d674b4b3cc5edd4bdc34ac7e13e7f2e86692e87d7d99ab3cc", kill_on_drop: false }`
[INFO] [stdout] 8164bd4e8685a69d674b4b3cc5edd4bdc34ac7e13e7f2e86692e87d7d99ab3cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 753be79cc560d4635693a02fed0a238cf65c41c736e575e0b4e19ec143fa0bc3
[INFO] running `Command { std: "docker" "start" "-a" "753be79cc560d4635693a02fed0a238cf65c41c736e575e0b4e19ec143fa0bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling petgraph-graphml v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.05s
[INFO] running `Command { std: "docker" "inspect" "753be79cc560d4635693a02fed0a238cf65c41c736e575e0b4e19ec143fa0bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753be79cc560d4635693a02fed0a238cf65c41c736e575e0b4e19ec143fa0bc3", kill_on_drop: false }`
[INFO] [stdout] 753be79cc560d4635693a02fed0a238cf65c41c736e575e0b4e19ec143fa0bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 42f4170a634f6b8739386fc16ac178a22fdfce37b48bb6dad32514ce38ca5dea
[INFO] running `Command { std: "docker" "start" "-a" "42f4170a634f6b8739386fc16ac178a22fdfce37b48bb6dad32514ce38ca5dea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling version-sync v0.8.1
[INFO] [stderr]    Compiling petgraph-graphml v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.59s
[INFO] running `Command { std: "docker" "inspect" "42f4170a634f6b8739386fc16ac178a22fdfce37b48bb6dad32514ce38ca5dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f4170a634f6b8739386fc16ac178a22fdfce37b48bb6dad32514ce38ca5dea", kill_on_drop: false }`
[INFO] [stdout] 42f4170a634f6b8739386fc16ac178a22fdfce37b48bb6dad32514ce38ca5dea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c336b293a5442012bd5ff5c113f2961f404276004e2aaed787a795f52bdb1f4
[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" "6c336b293a5442012bd5ff5c113f2961f404276004e2aaed787a795f52bdb1f4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/petgraph_graphml-959ba49512b8d23b
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graphml-28827d0d1a2829d7
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test single_edge ... ok
[INFO] [stdout] test single_edge_with_display_weight ... ok
[INFO] [stdout] test node_and_edge_display_weight ... ok
[INFO] [stdout] test single_node_disable_pretty ... ok
[INFO] [stdout] test single_node_with_display_weight ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/version_numbers-9b01e76630e5e147
[INFO] [stdout] test single_node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_readme_deps_in_lib ... ok
[INFO] [stderr]    Doc-tests petgraph-graphml
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - GraphMl<G>::export_node_weights (line 250) ... ok
[INFO] [stdout] test src/lib.rs - GraphMl<G>::export_edge_weights (line 198) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.90s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c336b293a5442012bd5ff5c113f2961f404276004e2aaed787a795f52bdb1f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c336b293a5442012bd5ff5c113f2961f404276004e2aaed787a795f52bdb1f4", kill_on_drop: false }`
[INFO] [stdout] 6c336b293a5442012bd5ff5c113f2961f404276004e2aaed787a795f52bdb1f4