[INFO] fetching crate nv-xml 0.1.3...
[INFO] testing nv-xml-0.1.3 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate nv-xml 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nv-xml 0.1.3 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed514f511c67b95b5786f022dcd0b05e23b39ec2a647ccd1514801e407f8aaba
[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" "ed514f511c67b95b5786f022dcd0b05e23b39ec2a647ccd1514801e407f8aaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed514f511c67b95b5786f022dcd0b05e23b39ec2a647ccd1514801e407f8aaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed514f511c67b95b5786f022dcd0b05e23b39ec2a647ccd1514801e407f8aaba", kill_on_drop: false }`
[INFO] [stdout] ed514f511c67b95b5786f022dcd0b05e23b39ec2a647ccd1514801e407f8aaba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] d079ef02b1f36d4f5d541ac5ca352817c128cc66382fc3b245a7b0c112887fb7
[INFO] running `Command { std: "docker" "start" "-a" "d079ef02b1f36d4f5d541ac5ca352817c128cc66382fc3b245a7b0c112887fb7", 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 1.74s
[INFO] running `Command { std: "docker" "inspect" "d079ef02b1f36d4f5d541ac5ca352817c128cc66382fc3b245a7b0c112887fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d079ef02b1f36d4f5d541ac5ca352817c128cc66382fc3b245a7b0c112887fb7", kill_on_drop: false }`
[INFO] [stdout] d079ef02b1f36d4f5d541ac5ca352817c128cc66382fc3b245a7b0c112887fb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6740dbb5c63c44884abf3d02c94092fcafc43a25479ff222afdd6e2b3ba8c07a
[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" "6740dbb5c63c44884abf3d02c94092fcafc43a25479ff222afdd6e2b3ba8c07a", 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 1.07s
[INFO] running `Command { std: "docker" "inspect" "6740dbb5c63c44884abf3d02c94092fcafc43a25479ff222afdd6e2b3ba8c07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6740dbb5c63c44884abf3d02c94092fcafc43a25479ff222afdd6e2b3ba8c07a", kill_on_drop: false }`
[INFO] [stdout] 6740dbb5c63c44884abf3d02c94092fcafc43a25479ff222afdd6e2b3ba8c07a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", 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] 58f1f1f3c3444c1932696b7c8d450aacdaeb24aa0a42f8b7af1156a47a4b145d
[INFO] running `Command { std: "docker" "start" "-a" "58f1f1f3c3444c1932696b7c8d450aacdaeb24aa0a42f8b7af1156a47a4b145d", 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: 1 warning emitted
[INFO] [stderr] 
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nv_xml-c52c444efa02ab1b)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[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_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::parse_can_fail ... ok
[INFO] [stdout] test xml_element::xml_element_tests::change_name_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_children_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_loads_of_nesting ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::bad_xml_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::correct_number_of_elements_test ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_nesting ... ok
[INFO] [stdout] test xml_parser::xml_parser_tests::can_parse_content ... ok
[INFO] [stdout] test xml_element::xml_element_tests::mutating_name_change_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_no_children_test ... ok
[INFO] [stdout] test xml_element::xml_element_tests::can_create_an_element ... ok
[INFO] [stdout] test xml_element::xml_element_tests::attributes_have_names ... ok
[INFO] [stdout] test xml_element::xml_element_tests::to_string_children_with_attributes_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nv-xml
[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" "58f1f1f3c3444c1932696b7c8d450aacdaeb24aa0a42f8b7af1156a47a4b145d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58f1f1f3c3444c1932696b7c8d450aacdaeb24aa0a42f8b7af1156a47a4b145d", kill_on_drop: false }`
[INFO] [stdout] 58f1f1f3c3444c1932696b7c8d450aacdaeb24aa0a42f8b7af1156a47a4b145d