[INFO] fetching crate petgraph-graphml 2.0.1...
[INFO] testing petgraph-graphml-2.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate petgraph-graphml 2.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate petgraph-graphml 2.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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" "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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cd554cb55332d31e6e2456b03d066588beca99849d75801f6ebade815b0cab1
[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" "1cd554cb55332d31e6e2456b03d066588beca99849d75801f6ebade815b0cab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd554cb55332d31e6e2456b03d066588beca99849d75801f6ebade815b0cab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd554cb55332d31e6e2456b03d066588beca99849d75801f6ebade815b0cab1", kill_on_drop: false }`
[INFO] [stdout] 1cd554cb55332d31e6e2456b03d066588beca99849d75801f6ebade815b0cab1
[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" "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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f87c147c54a0d4e71e99ccd5d08d1cb35af8b67d5dcfb5144663444174d7800
[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" "7f87c147c54a0d4e71e99ccd5d08d1cb35af8b67d5dcfb5144663444174d7800", 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 6.90s
[INFO] running `Command { std: "docker" "inspect" "7f87c147c54a0d4e71e99ccd5d08d1cb35af8b67d5dcfb5144663444174d7800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f87c147c54a0d4e71e99ccd5d08d1cb35af8b67d5dcfb5144663444174d7800", kill_on_drop: false }`
[INFO] [stdout] 7f87c147c54a0d4e71e99ccd5d08d1cb35af8b67d5dcfb5144663444174d7800
[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" "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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5333d9e1cf451746963d54654e313b141be5301c709910aaa4b75fbbd834e685
[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" "5333d9e1cf451746963d54654e313b141be5301c709910aaa4b75fbbd834e685", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling toml v0.5.8
[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 30.15s
[INFO] running `Command { std: "docker" "inspect" "5333d9e1cf451746963d54654e313b141be5301c709910aaa4b75fbbd834e685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5333d9e1cf451746963d54654e313b141be5301c709910aaa4b75fbbd834e685", kill_on_drop: false }`
[INFO] [stdout] 5333d9e1cf451746963d54654e313b141be5301c709910aaa4b75fbbd834e685
[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" "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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9eb6679eaf761d978a7ad2fc37e4f455c457f52a34c05f423cf85343a0e7520c
[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" "9eb6679eaf761d978a7ad2fc37e4f455c457f52a34c05f423cf85343a0e7520c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/petgraph_graphml-309ad755a97dfd2e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graphml-83ee4a7212c6cea0
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/version_numbers-5ff4e1ad9e6a8600
[INFO] [stdout] test single_edge ... ok
[INFO] [stdout] test single_node_disable_pretty ... ok
[INFO] [stdout] test node_and_edge_display_weight ... ok
[INFO] [stdout] test single_node_with_display_weight ... ok
[INFO] [stdout] test single_edge_with_display_weight ... ok
[INFO] [stdout] test single_node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - GraphMl<G>::export_edge_weights (line 198) ... ok
[INFO] [stdout] test src/lib.rs - GraphMl<G>::export_node_weights (line 250) ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9eb6679eaf761d978a7ad2fc37e4f455c457f52a34c05f423cf85343a0e7520c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb6679eaf761d978a7ad2fc37e4f455c457f52a34c05f423cf85343a0e7520c", kill_on_drop: false }`
[INFO] [stdout] 9eb6679eaf761d978a7ad2fc37e4f455c457f52a34c05f423cf85343a0e7520c