[INFO] fetching crate jdefault_derive 0.3.2...
[INFO] checking jdefault_derive-0.3.2 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate jdefault_derive 0.3.2 into /workspace/builds/worker-1-tc2/source
[INFO] checking jdefault_derive-0.3.2 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate jdefault_derive 0.3.2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate jdefault_derive 0.3.2 on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jdefault_derive 0.3.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate jdefault_derive 0.3.2
[INFO] tweaked toml for crates.io crate jdefault_derive 0.3.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate jdefault_derive 0.3.2 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b88022cf1cdc0e3fa717252bb620727a855a0a74fc2dcbe8b7be8583511de28
[INFO] running `Command { std: "docker" "start" "-a" "4b88022cf1cdc0e3fa717252bb620727a855a0a74fc2dcbe8b7be8583511de28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b88022cf1cdc0e3fa717252bb620727a855a0a74fc2dcbe8b7be8583511de28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b88022cf1cdc0e3fa717252bb620727a855a0a74fc2dcbe8b7be8583511de28", kill_on_drop: false }`
[INFO] [stdout] 4b88022cf1cdc0e3fa717252bb620727a855a0a74fc2dcbe8b7be8583511de28
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd9ef8ace6907ea36dfbec99d5283fd216eb4adfcb3b9e6e94c61833b1eda2f4
[INFO] running `Command { std: "docker" "start" "-a" "dd9ef8ace6907ea36dfbec99d5283fd216eb4adfcb3b9e6e94c61833b1eda2f4", kill_on_drop: false }`
[INFO] [stderr]     Checking virtue v0.0.18
[INFO] [stderr]     Checking jdefault_derive v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/jdefault/derive_enum.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn iter_fields(&self) -> EnumVariantIterator {
[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] 17 |     fn iter_fields(&self) -> EnumVariantIterator<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/jdefault/derive_enum.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn iter_fields(&self) -> EnumVariantIterator {
[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] 17 |     fn iter_fields(&self) -> EnumVariantIterator<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/jdefault/derive_enum.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn iter_fields(&self) -> EnumVariantIterator {
[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] 17 |     fn iter_fields(&self) -> EnumVariantIterator<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "dd9ef8ace6907ea36dfbec99d5283fd216eb4adfcb3b9e6e94c61833b1eda2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9ef8ace6907ea36dfbec99d5283fd216eb4adfcb3b9e6e94c61833b1eda2f4", kill_on_drop: false }`
[INFO] [stdout] dd9ef8ace6907ea36dfbec99d5283fd216eb4adfcb3b9e6e94c61833b1eda2f4