[INFO] fetching crate skyway 0.7.1...
[INFO] checking skyway-0.7.1 against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] extracting crate skyway 0.7.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate skyway 0.7.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate skyway 0.7.1
[INFO] tweaked toml for crates.io crate skyway 0.7.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate skyway 0.7.1 on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate skyway 0.7.1 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 780aac9a7aef18067c133c440f113523a17d0e52e1adb2c7b2891fe142fcd66c
[INFO] running `Command { std: "docker" "start" "-a" "780aac9a7aef18067c133c440f113523a17d0e52e1adb2c7b2891fe142fcd66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "780aac9a7aef18067c133c440f113523a17d0e52e1adb2c7b2891fe142fcd66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780aac9a7aef18067c133c440f113523a17d0e52e1adb2c7b2891fe142fcd66c", kill_on_drop: false }`
[INFO] [stdout] 780aac9a7aef18067c133c440f113523a17d0e52e1adb2c7b2891fe142fcd66c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c85bce10251b70a460f0d4680df0043005d242437dd4483eb347a97c0a1c99f
[INFO] running `Command { std: "docker" "start" "-a" "2c85bce10251b70a460f0d4680df0043005d242437dd4483eb347a97c0a1c99f", kill_on_drop: false }`
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[INFO] [stderr]     Checking skyway v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]   --> src/readers/xml.rs:32:44
[INFO] [stdout]    |
[INFO] [stdout] 32 |             XmlReadError::MissingAttribute(attr) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/readers/xml.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |             XmlReadError::ParsingError(msg) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/readers/xml.rs:40:45
[INFO] [stdout]    |
[INFO] [stdout] 40 |             XmlReadError::UnexpectedElement(elem) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]   --> src/readers/xml.rs:32:44
[INFO] [stdout]    |
[INFO] [stdout] 32 |             XmlReadError::MissingAttribute(attr) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/readers/xml.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |             XmlReadError::ParsingError(msg) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/readers/xml.rs:40:45
[INFO] [stdout]    |
[INFO] [stdout] 40 |             XmlReadError::UnexpectedElement(elem) => SkywayError::InvalidInputFile,
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidAttributeValue` and `UnexpectedElement` are never constructed
[INFO] [stdout]   --> src/readers/xml.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum XmlReadError {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 23 |     MissingAttribute(String),
[INFO] [stdout] 24 |     InvalidAttributeValue { attr: String, value: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 25 |     ParsingError(String),
[INFO] [stdout] 26 |     UnexpectedElement(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XmlReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidAttributeValue` and `UnexpectedElement` are never constructed
[INFO] [stdout]   --> src/readers/xml.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum XmlReadError {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 23 |     MissingAttribute(String),
[INFO] [stdout] 24 |     InvalidAttributeValue { attr: String, value: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 25 |     ParsingError(String),
[INFO] [stdout] 26 |     UnexpectedElement(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XmlReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.73s
[INFO] running `Command { std: "docker" "inspect" "2c85bce10251b70a460f0d4680df0043005d242437dd4483eb347a97c0a1c99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c85bce10251b70a460f0d4680df0043005d242437dd4483eb347a97c0a1c99f", kill_on_drop: false }`
[INFO] [stdout] 2c85bce10251b70a460f0d4680df0043005d242437dd4483eb347a97c0a1c99f
