[INFO] fetching crate easy-xml 0.1.4...
[INFO] checking easy-xml-0.1.4 against master#e4106065bf1bb515935d5d024e8d9c86454e2b22 for pr-112160
[INFO] extracting crate easy-xml 0.1.4 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate easy-xml 0.1.4 on toolchain e4106065bf1bb515935d5d024e8d9c86454e2b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easy-xml 0.1.4
[INFO] finished tweaking crates.io crate easy-xml 0.1.4
[INFO] tweaked toml for crates.io crate easy-xml 0.1.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easy-xml-derive v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59f43ef8c25aecd49dfbee9ea316948b3ecb1eac974e9bc70cee398651736ebe
[INFO] running `Command { std: "docker" "start" "-a" "59f43ef8c25aecd49dfbee9ea316948b3ecb1eac974e9bc70cee398651736ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f43ef8c25aecd49dfbee9ea316948b3ecb1eac974e9bc70cee398651736ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f43ef8c25aecd49dfbee9ea316948b3ecb1eac974e9bc70cee398651736ebe", kill_on_drop: false }`
[INFO] [stdout] 59f43ef8c25aecd49dfbee9ea316948b3ecb1eac974e9bc70cee398651736ebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a148114aeb71ae0d5109f9482f308da9d59c74ce0d7bb966e0c5f6752effb5
[INFO] running `Command { std: "docker" "start" "-a" "18a148114aeb71ae0d5109f9482f308da9d59c74ce0d7bb966e0c5f6752effb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking xml-rs v0.8.14
[INFO] [stderr]    Compiling easy-xml-derive v0.1.4
[INFO] [stderr]     Checking easy-xml v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 | /     fn serialize(&self, element: &mut XmlElement)
[INFO] [stdout] 295 | |     where
[INFO] [stdout] 296 | |         Self: Sized,
[INFO] [stdout]     | |____________________^ cannot return without recursing
[INFO] [stdout] 297 |       {
[INFO] [stdout] 298 |           self.borrow().serialize(element);
[INFO] [stdout]     |           -------------------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 | /     fn serialize(&self, element: &mut XmlElement)
[INFO] [stdout] 295 | |     where
[INFO] [stdout] 296 | |         Self: Sized,
[INFO] [stdout]     | |____________________^ cannot return without recursing
[INFO] [stdout] 297 |       {
[INFO] [stdout] 298 |           self.borrow().serialize(element);
[INFO] [stdout]     |           -------------------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "18a148114aeb71ae0d5109f9482f308da9d59c74ce0d7bb966e0c5f6752effb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a148114aeb71ae0d5109f9482f308da9d59c74ce0d7bb966e0c5f6752effb5", kill_on_drop: false }`
[INFO] [stdout] 18a148114aeb71ae0d5109f9482f308da9d59c74ce0d7bb966e0c5f6752effb5