[INFO] fetching crate nv-xml 0.1.3...
[INFO] testing nv-xml-0.1.3 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate nv-xml 0.1.3 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate nv-xml 0.1.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nv-xml 0.1.3
[INFO] finished tweaking crates.io crate nv-xml 0.1.3
[INFO] tweaked toml for crates.io crate nv-xml 0.1.3 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 746efe882beabeefd8e0c6d8b792a00d8f76d4074d6e292719ee58176c812730
[INFO] running `Command { std: "docker" "start" "-a" "746efe882beabeefd8e0c6d8b792a00d8f76d4074d6e292719ee58176c812730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "746efe882beabeefd8e0c6d8b792a00d8f76d4074d6e292719ee58176c812730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746efe882beabeefd8e0c6d8b792a00d8f76d4074d6e292719ee58176c812730", kill_on_drop: false }`
[INFO] [stdout] 746efe882beabeefd8e0c6d8b792a00d8f76d4074d6e292719ee58176c812730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce9c01b67696e38a16e43ece9b43a389ef540e81f7ee104decb8bb36e3fe5629
[INFO] running `Command { std: "docker" "start" "-a" "ce9c01b67696e38a16e43ece9b43a389ef540e81f7ee104decb8bb36e3fe5629", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling xml-rs v0.4.1
[INFO] [stderr]    Compiling nv-xml v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/xml_parser.rs:40:33
[INFO] [stdout]    |
[INFO] [stdout] 40 | ...                   let mut parent = builders.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "ce9c01b67696e38a16e43ece9b43a389ef540e81f7ee104decb8bb36e3fe5629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9c01b67696e38a16e43ece9b43a389ef540e81f7ee104decb8bb36e3fe5629", kill_on_drop: false }`
[INFO] [stdout] ce9c01b67696e38a16e43ece9b43a389ef540e81f7ee104decb8bb36e3fe5629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b296dfbc481a1a65cf8797644bc7af49e4252b59a07a66f1b3e9853684a56ad
[INFO] running `Command { std: "docker" "start" "-a" "5b296dfbc481a1a65cf8797644bc7af49e4252b59a07a66f1b3e9853684a56ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling nv-xml v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/xml_parser.rs:40:33
[INFO] [stdout]    |
[INFO] [stdout] 40 | ...                   let mut parent = builders.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/xml_parser.rs:40:33
[INFO] [stdout]    |
[INFO] [stdout] 40 | ...                   let mut parent = builders.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "5b296dfbc481a1a65cf8797644bc7af49e4252b59a07a66f1b3e9853684a56ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b296dfbc481a1a65cf8797644bc7af49e4252b59a07a66f1b3e9853684a56ad", kill_on_drop: false }`
[INFO] [stdout] 5b296dfbc481a1a65cf8797644bc7af49e4252b59a07a66f1b3e9853684a56ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88c04701aff4554281d640641cb88149c8a449d35199298ab0850c5f0645744b
[INFO] running `Command { std: "docker" "start" "-a" "88c04701aff4554281d640641cb88149c8a449d35199298ab0850c5f0645744b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/xml_parser.rs:40:33
[INFO] [stderr]    |
[INFO] [stderr] 40 | ...                   let mut parent = builders.last_mut().unwrap();
[INFO] [stderr]    |                           ----^^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nv-xml` (lib) generated 1 warning
[INFO] [stderr] warning: `nv-xml` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nv_xml-892c6930d01c6e5c)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test xml_attribute::xml_attribute_tests::to_string_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::can_get_attributes_by_name ... ok
[INFO] [stdout] test xml_element::xml_element_tests::attributes_have_names ... ok
[INFO] [stdout] test xml_element::xml_element_tests::can_create_an_element ... ok
[INFO] [stdout] test xml_element::xml_element_tests::attributes_have_values ... ok
[INFO] [stdout] test xml_element::xml_element_tests::can_get_attributes_value_from_key ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_children_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::parse_can_fail ... ok
[INFO] [stdout] test xml_element::xml_element_tests::change_name_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::mutating_name_change_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_children_with_attributes_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_no_children_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_content ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::bad_xml_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse ... ok
[INFO] [stderr]    Doc-tests nv-xml
[INFO] [stdout] test xml_parser::xml_parser_tests::correct_number_of_elements_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_nesting ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_loads_of_nesting ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[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" "88c04701aff4554281d640641cb88149c8a449d35199298ab0850c5f0645744b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c04701aff4554281d640641cb88149c8a449d35199298ab0850c5f0645744b", kill_on_drop: false }`
[INFO] [stdout] 88c04701aff4554281d640641cb88149c8a449d35199298ab0850c5f0645744b
