[INFO] fetching crate llsd 0.1.0...
[INFO] testing llsd-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate llsd 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate llsd 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate llsd 0.1.0
[INFO] finished tweaking crates.io crate llsd 0.1.0
[INFO] tweaked toml for crates.io crate llsd 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-xml v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3b18c14823a9108f8f4683978586d065ec886ef8565272dde636fa3c484fd70
[INFO] running `Command { std: "docker" "start" "-a" "f3b18c14823a9108f8f4683978586d065ec886ef8565272dde636fa3c484fd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3b18c14823a9108f8f4683978586d065ec886ef8565272dde636fa3c484fd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b18c14823a9108f8f4683978586d065ec886ef8565272dde636fa3c484fd70", kill_on_drop: false }`
[INFO] [stdout] f3b18c14823a9108f8f4683978586d065ec886ef8565272dde636fa3c484fd70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db1bd4c4b0d78a2456967148bc9509dc07dc0f4f05a62c0f288eac8f46f3ced
[INFO] running `Command { std: "docker" "start" "-a" "9db1bd4c4b0d78a2456967148bc9509dc07dc0f4f05a62c0f288eac8f46f3ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling quick-xml v0.13.3
[INFO] [stderr]    Compiling llsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> src/xml.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 | /         match *self {
[INFO] [stdout] 120 | |             BinaryEncoding::Base16 => &BASE16,
[INFO] [stdout] 121 | |             BinaryEncoding::Base64 => &BASE64,
[INFO] [stdout]     | |                                        ------ temporary value created here
[INFO] [stdout] 122 | |         }
[INFO] [stdout]     | |_________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llsd` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9db1bd4c4b0d78a2456967148bc9509dc07dc0f4f05a62c0f288eac8f46f3ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db1bd4c4b0d78a2456967148bc9509dc07dc0f4f05a62c0f288eac8f46f3ced", kill_on_drop: false }`
[INFO] [stdout] 9db1bd4c4b0d78a2456967148bc9509dc07dc0f4f05a62c0f288eac8f46f3ced