[INFO] cloning repository https://github.com/joshuaTayjo/xml-is-old
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuaTayjo/xml-is-old" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjoshuaTayjo%2Fxml-is-old", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjoshuaTayjo%2Fxml-is-old'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da1881bf6b0e38f0656cf62f263ef227d2054722
[INFO] building joshuaTayjo/xml-is-old against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjoshuaTayjo%2Fxml-is-old" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuaTayjo/xml-is-old on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshuaTayjo/xml-is-old
[INFO] finished tweaking git repo https://github.com/joshuaTayjo/xml-is-old
[INFO] tweaked toml for git repo https://github.com/joshuaTayjo/xml-is-old written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuaTayjo/xml-is-old already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82d7624b3f6cef7dd659d2c5b4cd3caeff8bdd56223f7022d55405b4ac6c4572
[INFO] running `Command { std: "docker" "start" "-a" "82d7624b3f6cef7dd659d2c5b4cd3caeff8bdd56223f7022d55405b4ac6c4572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82d7624b3f6cef7dd659d2c5b4cd3caeff8bdd56223f7022d55405b4ac6c4572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d7624b3f6cef7dd659d2c5b4cd3caeff8bdd56223f7022d55405b4ac6c4572", kill_on_drop: false }`
[INFO] [stdout] 82d7624b3f6cef7dd659d2c5b4cd3caeff8bdd56223f7022d55405b4ac6c4572
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c37bff3d760467b0172f09aa765d7c08146a318cc0127282a77a63ac0c1055bc
[INFO] running `Command { std: "docker" "start" "-a" "c37bff3d760467b0172f09aa765d7c08146a318cc0127282a77a63ac0c1055bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling regex v1.8.3
[INFO] [stderr]    Compiling xml_is_old v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `version`, `encoding`, and `root` are never read
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct XMLTree {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     version: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     encoding: String,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     root: XMLNode,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct XMLNode {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     parent: Weak<XMLNode>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XMLNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_name` and `attributes` are never read
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct ElementData {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     tag_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     attributes: Attributes,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ElementData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "c37bff3d760467b0172f09aa765d7c08146a318cc0127282a77a63ac0c1055bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37bff3d760467b0172f09aa765d7c08146a318cc0127282a77a63ac0c1055bc", kill_on_drop: false }`
[INFO] [stdout] c37bff3d760467b0172f09aa765d7c08146a318cc0127282a77a63ac0c1055bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be9c6c553fdde4443868f8167067e59b128d275d458266ae7e9e6007f60d76ef
[INFO] running `Command { std: "docker" "start" "-a" "be9c6c553fdde4443868f8167067e59b128d275d458266ae7e9e6007f60d76ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml_is_old v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `version`, `encoding`, and `root` are never read
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct XMLTree {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     version: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     encoding: String,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     root: XMLNode,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct XMLNode {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     parent: Weak<XMLNode>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XMLNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_name` and `attributes` are never read
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct ElementData {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     tag_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     attributes: Attributes,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ElementData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `version`, `encoding`, and `root` are never read
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct XMLTree {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     version: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     encoding: String,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     root: XMLNode,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct XMLNode {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     parent: Weak<XMLNode>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XMLNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_name` and `attributes` are never read
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct ElementData {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     tag_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     attributes: Attributes,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ElementData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "be9c6c553fdde4443868f8167067e59b128d275d458266ae7e9e6007f60d76ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9c6c553fdde4443868f8167067e59b128d275d458266ae7e9e6007f60d76ef", kill_on_drop: false }`
[INFO] [stdout] be9c6c553fdde4443868f8167067e59b128d275d458266ae7e9e6007f60d76ef