[INFO] fetching crate declarative-macros 0.7.0...
[INFO] checking declarative-macros-0.7.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate declarative-macros 0.7.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate declarative-macros 0.7.0
[INFO] finished tweaking crates.io crate declarative-macros 0.7.0
[INFO] tweaked toml for crates.io crate declarative-macros 0.7.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate declarative-macros 0.7.0 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 11 packages to latest compatible versions
[INFO] [stderr]       Adding compact_str v0.7.1 (available: v0.9.0)
[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] aa5968e588b8754044b2b87fddbf71e28ce1fa7f85a98898fe0a14d37d3f366a
[INFO] running `Command { std: "docker" "start" "-a" "aa5968e588b8754044b2b87fddbf71e28ce1fa7f85a98898fe0a14d37d3f366a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa5968e588b8754044b2b87fddbf71e28ce1fa7f85a98898fe0a14d37d3f366a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa5968e588b8754044b2b87fddbf71e28ce1fa7f85a98898fe0a14d37d3f366a", kill_on_drop: false }`
[INFO] [stdout] aa5968e588b8754044b2b87fddbf71e28ce1fa7f85a98898fe0a14d37d3f366a
[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] 513cd5da03377d87ad80ef9bc8fd3e976b3dc019c17c49f5da7323f9b6519a87
[INFO] running `Command { std: "docker" "start" "-a" "513cd5da03377d87ad80ef9bc8fd3e976b3dc019c17c49f5da7323f9b6519a87", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking declarative-macros v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/item.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn as_assignee(&self) -> Assignee {
[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] 66 |     pub fn as_assignee(&self) -> Assignee<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/view.rs:188:18
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get<'a>(&'a self, fields: &'a mut Option<&mut Punctuated<syn::Field, syn::Token![,]>>) -> &[syn::Attribute] {
[INFO] [stdout]     |                     ^^                ^^ these lifetimes flow to the output                          ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get<'a>(&'a self, fields: &'a mut Option<&mut Punctuated<syn::Field, syn::Token![,]>>) -> &'a [syn::Attribute] {
[INFO] [stdout]     |                                                                                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/item.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn as_assignee(&self) -> Assignee {
[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] 66 |     pub fn as_assignee(&self) -> Assignee<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/view.rs:188:18
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get<'a>(&'a self, fields: &'a mut Option<&mut Punctuated<syn::Field, syn::Token![,]>>) -> &[syn::Attribute] {
[INFO] [stdout]     |                     ^^                ^^ these lifetimes flow to the output                          ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get<'a>(&'a self, fields: &'a mut Option<&mut Punctuated<syn::Field, syn::Token![,]>>) -> &'a [syn::Attribute] {
[INFO] [stdout]     |                                                                                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "513cd5da03377d87ad80ef9bc8fd3e976b3dc019c17c49f5da7323f9b6519a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "513cd5da03377d87ad80ef9bc8fd3e976b3dc019c17c49f5da7323f9b6519a87", kill_on_drop: false }`
[INFO] [stdout] 513cd5da03377d87ad80ef9bc8fd3e976b3dc019c17c49f5da7323f9b6519a87