[INFO] fetching crate easy-xml 0.1.4...
[INFO] checking easy-xml-0.1.4 against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] extracting crate easy-xml 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate easy-xml 0.1.4 on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "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-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2235375fd837018c837262bfdf404922a8240d47dc95627bd2e0bb71ea1debfe
[INFO] running `Command { std: "docker" "start" "-a" "2235375fd837018c837262bfdf404922a8240d47dc95627bd2e0bb71ea1debfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2235375fd837018c837262bfdf404922a8240d47dc95627bd2e0bb71ea1debfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2235375fd837018c837262bfdf404922a8240d47dc95627bd2e0bb71ea1debfe", kill_on_drop: false }`
[INFO] [stdout] 2235375fd837018c837262bfdf404922a8240d47dc95627bd2e0bb71ea1debfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d72302be7cb2ed46bef94bcea4618afaff1773bc9b36ac7b64d3c01d542c2ac9
[INFO] running `Command { std: "docker" "start" "-a" "d72302be7cb2ed46bef94bcea4618afaff1773bc9b36ac7b64d3c01d542c2ac9", 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] error: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |         self.borrow().serialize(element);
[INFO] [stdout]     |             ^^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Cell<T>` does not implement `Borrow`, so calling `borrow` on `&Cell<T>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |         self.borrow().serialize(element);
[INFO] [stdout]     |             ^^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Cell<T>` does not implement `Borrow`, so calling `borrow` on `&Cell<T>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `easy-xml` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `easy-xml` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d72302be7cb2ed46bef94bcea4618afaff1773bc9b36ac7b64d3c01d542c2ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72302be7cb2ed46bef94bcea4618afaff1773bc9b36ac7b64d3c01d542c2ac9", kill_on_drop: false }`
[INFO] [stdout] d72302be7cb2ed46bef94bcea4618afaff1773bc9b36ac7b64d3c01d542c2ac9