[INFO] fetching crate xmlwriter 0.1.0...
[INFO] testing xmlwriter-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate xmlwriter 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate xmlwriter 0.1.0 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 xmlwriter 0.1.0
[INFO] finished tweaking crates.io crate xmlwriter 0.1.0
[INFO] tweaked toml for crates.io crate xmlwriter 0.1.0 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[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-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 88b3153f2c8074f2d1488bc8dea3edb12bfb77abea08803bc2f8e825adb74791
[INFO] running `Command { std: "docker" "start" "-a" "88b3153f2c8074f2d1488bc8dea3edb12bfb77abea08803bc2f8e825adb74791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b3153f2c8074f2d1488bc8dea3edb12bfb77abea08803bc2f8e825adb74791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b3153f2c8074f2d1488bc8dea3edb12bfb77abea08803bc2f8e825adb74791", kill_on_drop: false }`
[INFO] [stdout] 88b3153f2c8074f2d1488bc8dea3edb12bfb77abea08803bc2f8e825adb74791
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0bcbe3d1b045d6cf41800708f82c5d105b190d2e4572c99f9fe048960d3b6ae
[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" "f0bcbe3d1b045d6cf41800708f82c5d105b190d2e4572c99f9fe048960d3b6ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling xmlwriter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "f0bcbe3d1b045d6cf41800708f82c5d105b190d2e4572c99f9fe048960d3b6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0bcbe3d1b045d6cf41800708f82c5d105b190d2e4572c99f9fe048960d3b6ae", kill_on_drop: false }`
[INFO] [stdout] f0bcbe3d1b045d6cf41800708f82c5d105b190d2e4572c99f9fe048960d3b6ae
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33e4ad19c8ef87ff2aa7df7562caca0630c37b94ce390c020aeb1d4675c923cd
[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" "33e4ad19c8ef87ff2aa7df7562caca0630c37b94ce390c020aeb1d4675c923cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling xmlwriter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "33e4ad19c8ef87ff2aa7df7562caca0630c37b94ce390c020aeb1d4675c923cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e4ad19c8ef87ff2aa7df7562caca0630c37b94ce390c020aeb1d4675c923cd", kill_on_drop: false }`
[INFO] [stdout] 33e4ad19c8ef87ff2aa7df7562caca0630c37b94ce390c020aeb1d4675c923cd
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9edc459d2f9129120ca4f856a6762fe5a5e86ff9fa3b17bd06e62a5e0a5bae58
[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" "9edc459d2f9129120ca4f856a6762fe5a5e86ff9fa3b17bd06e62a5e0a5bae58", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/xmlwriter-083e5170a24e7963
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-79b44869dbac0d3f
[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] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test attrs_indent_01 ... ok
[INFO] [stdout] test write_attribute_03 ... ok
[INFO] [stdout] test write_comment_02 ... ok
[INFO] [stdout] test write_comment_03 ... ok
[INFO] [stdout] test write_attribute_02 ... ok
[INFO] [stdout] test write_comment_05 ... ok
[INFO] [stdout] test write_comment_04 ... ok
[INFO] [stdout] test write_element_01 ... ok
[INFO] [stdout] test write_attribute_05 ... ok
[INFO] [stdout] test write_comment_06 ... ok
[INFO] [stdout] test write_element_02 ... ok
[INFO] [stdout] test write_attribute_07 ... ok
[INFO] [stdout] test write_attribute_06 ... ok
[INFO] [stdout] test write_element_03 ... ok
[INFO] [stdout] test write_preserve_text_02 ... ok
[INFO] [stdout] test write_comment_07 ... ok
[INFO] [stdout] test write_single_quote_01 ... ok
[INFO] [stdout] test write_single_quote_02 ... ok
[INFO] [stdout] test write_declaration_01 ... ok
[INFO] [stdout] test write_element_05 ... ok
[INFO] [stdout] test write_comment_08 ... ok
[INFO] [stdout] test write_comment_01 ... ok
[INFO] [stdout] test write_text_06 ... ok
[INFO] [stdout] test write_text_05 ... ok
[INFO] [stdout] test write_text_09 ... ok
[INFO] [stdout] test write_text_11 ... ok
[INFO] [stdout] test write_text_10 ... ok
[INFO] [stdout] test write_text_07 ... ok
[INFO] [stdout] test write_attribute_04 ... ok
[INFO] [stdout] test write_preserve_text_01 ... ok
[INFO] [stdout] test write_element_06 ... ok
[INFO] [stdout] test write_text_04 ... ok
[INFO] [stdout] test write_text_08 ... ok
[INFO] [stdout] test write_declaration_03 ... ok
[INFO] [stdout] test write_attribute_01 ... ok
[INFO] [stdout] test write_text_01 ... ok
[INFO] [stdout] test write_text_02 ... ok
[INFO] [stdout] test write_text_03 ... ok
[INFO] [stdout] test write_declaration_02 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xmlwriter
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - XmlWriter::end_document (line 525) ... ok
[INFO] [stdout] test src/lib.rs - XmlWriter::write_attribute_fmt (line 316) ... ok
[INFO] [stdout] test src/lib.rs - XmlWriter::set_preserve_whitespaces (line 418) ... ok
[INFO] [stdout] test src/lib.rs - XmlWriter::write_attribute_raw (line 351) ... ok
[INFO] [stdout] test src/lib.rs - XmlWriter::write_attribute (line 292) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9edc459d2f9129120ca4f856a6762fe5a5e86ff9fa3b17bd06e62a5e0a5bae58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9edc459d2f9129120ca4f856a6762fe5a5e86ff9fa3b17bd06e62a5e0a5bae58", kill_on_drop: false }`
[INFO] [stdout] 9edc459d2f9129120ca4f856a6762fe5a5e86ff9fa3b17bd06e62a5e0a5bae58