[INFO] fetching crate easy-xml 0.1.4... [INFO] checking easy-xml-0.1.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate easy-xml 0.1.4 into /workspace/builds/worker-7-tc2/source [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-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate easy-xml 0.1.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 6 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec39329104dc5fb24c5b1cf34d192b97fc4b7e2c1f1255799682b81350f38249 [INFO] running `Command { std: "docker" "start" "-a" "ec39329104dc5fb24c5b1cf34d192b97fc4b7e2c1f1255799682b81350f38249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec39329104dc5fb24c5b1cf34d192b97fc4b7e2c1f1255799682b81350f38249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec39329104dc5fb24c5b1cf34d192b97fc4b7e2c1f1255799682b81350f38249", kill_on_drop: false }` [INFO] [stdout] ec39329104dc5fb24c5b1cf34d192b97fc4b7e2c1f1255799682b81350f38249 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 282ffea3e4e44afc084e103c268ef3670414c6bd19684699dfd65b44497ab114 [INFO] running `Command { std: "docker" "start" "-a" "282ffea3e4e44afc084e103c268ef3670414c6bd19684699dfd65b44497ab114", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking xml-rs v0.8.26 [INFO] [stderr] Compiling quote v1.0.40 [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: 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] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Cell` does not implement `Borrow`, so calling `borrow` on `&Cell` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 298 - self.borrow().serialize(element); [INFO] [stdout] 298 + self.serialize(element); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/se.rs:26:35 [INFO] [stdout] | [INFO] [stdout] 26 | fn owned_name_to_name(owned_name: &OwnedName) -> Name { [INFO] [stdout] | ^^^^^^^^^^ ---- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 26 | fn owned_name_to_name(owned_name: &OwnedName) -> Name<'_> { [INFO] [stdout] | ++++ [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: 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] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Cell` does not implement `Borrow`, so calling `borrow` on `&Cell` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 298 - self.borrow().serialize(element); [INFO] [stdout] 298 + self.serialize(element); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/se.rs:26:35 [INFO] [stdout] | [INFO] [stdout] 26 | fn owned_name_to_name(owned_name: &OwnedName) -> Name { [INFO] [stdout] | ^^^^^^^^^^ ---- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 26 | fn owned_name_to_name(owned_name: &OwnedName) -> Name<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CustomData` is never constructed [INFO] [stdout] --> tests/text.rs:69:20 [INFO] [stdout] | [INFO] [stdout] 69 | pub struct CustomData { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.90s [INFO] running `Command { std: "docker" "inspect" "282ffea3e4e44afc084e103c268ef3670414c6bd19684699dfd65b44497ab114", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "282ffea3e4e44afc084e103c268ef3670414c6bd19684699dfd65b44497ab114", kill_on_drop: false }` [INFO] [stdout] 282ffea3e4e44afc084e103c268ef3670414c6bd19684699dfd65b44497ab114