[INFO] fetching crate mathml 0.4.4...
[INFO] testing mathml-0.4.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mathml 0.4.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mathml 0.4.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathml 0.4.4
[INFO] finished tweaking crates.io crate mathml 0.4.4
[INFO] tweaked toml for crates.io crate mathml 0.4.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "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] c26e07ad1f967423a43c925729afec867134ee647b649cb6035ba4d8e0ba68a2
[INFO] running `Command { std: "docker" "start" "-a" "c26e07ad1f967423a43c925729afec867134ee647b649cb6035ba4d8e0ba68a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c26e07ad1f967423a43c925729afec867134ee647b649cb6035ba4d8e0ba68a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c26e07ad1f967423a43c925729afec867134ee647b649cb6035ba4d8e0ba68a2", kill_on_drop: false }`
[INFO] [stdout] c26e07ad1f967423a43c925729afec867134ee647b649cb6035ba4d8e0ba68a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc2131691ac4367f19d6b10df74eac008138ccda6a5c1aa72d4776dc7b481ab5
[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" "cc2131691ac4367f19d6b10df74eac008138ccda6a5c1aa72d4776dc7b481ab5", kill_on_drop: false }`
[INFO] [stderr]    Compiling roxmltree v0.10.1
[INFO] [stderr]    Compiling serde_plain v0.3.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling mathml v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "cc2131691ac4367f19d6b10df74eac008138ccda6a5c1aa72d4776dc7b481ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2131691ac4367f19d6b10df74eac008138ccda6a5c1aa72d4776dc7b481ab5", kill_on_drop: false }`
[INFO] [stdout] cc2131691ac4367f19d6b10df74eac008138ccda6a5c1aa72d4776dc7b481ab5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "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] 8c654720bfdad9af8c93143516077c6ea6ddd7afabd5e23f52635a4206c87c13
[INFO] running `Command { std: "docker" "start" "-a" "8c654720bfdad9af8c93143516077c6ea6ddd7afabd5e23f52635a4206c87c13", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathml v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "8c654720bfdad9af8c93143516077c6ea6ddd7afabd5e23f52635a4206c87c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c654720bfdad9af8c93143516077c6ea6ddd7afabd5e23f52635a4206c87c13", kill_on_drop: false }`
[INFO] [stdout] 8c654720bfdad9af8c93143516077c6ea6ddd7afabd5e23f52635a4206c87c13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b610087aaacf0cd626f4503b39c1a284db35dc127e8faf623503a3346ce88d9b
[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" "b610087aaacf0cd626f4503b39c1a284db35dc127e8faf623503a3346ce88d9b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mathml-57357b02589cb2a2)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test numbers::test::test_number_e ... ok
[INFO] [stdout] test test::test_tau ... ok
[INFO] [stdout] test test::test_simple_parsing ... ok
[INFO] [stdout] test test::test_sbml_attrs ... ok
[INFO] [stdout] test regexes::test::test_replace ... ok
[INFO] [stdout] test numbers::test::test_number_eq ... ok
[INFO] [stdout] test test::test_recursion ... ok
[INFO] [stdout] test test::test_numbers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mathml
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b610087aaacf0cd626f4503b39c1a284db35dc127e8faf623503a3346ce88d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b610087aaacf0cd626f4503b39c1a284db35dc127e8faf623503a3346ce88d9b", kill_on_drop: false }`
[INFO] [stdout] b610087aaacf0cd626f4503b39c1a284db35dc127e8faf623503a3346ce88d9b