[INFO] fetching crate kay_codegen 0.3.10...
[INFO] checking kay_codegen-0.3.10 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate kay_codegen 0.3.10 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate kay_codegen 0.3.10 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kay_codegen 0.3.10
[INFO] finished tweaking crates.io crate kay_codegen 0.3.10
[INFO] tweaked toml for crates.io crate kay_codegen 0.3.10 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding ansi_term v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.8)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.5.0)
[INFO] [stderr]       Adding pretty_assertions v0.6.1 (latest: v1.4.0)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.37)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.77)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.5)
[INFO] [stderr]       Adding unindent v0.1.11 (latest: v0.2.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6e9558c0ee92d9fb952b1fee399257376205d66cb92220b9b8a00d372c700bc
[INFO] running `Command { std: "docker" "start" "-a" "d6e9558c0ee92d9fb952b1fee399257376205d66cb92220b9b8a00d372c700bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e9558c0ee92d9fb952b1fee399257376205d66cb92220b9b8a00d372c700bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e9558c0ee92d9fb952b1fee399257376205d66cb92220b9b8a00d372c700bc", kill_on_drop: false }`
[INFO] [stdout] d6e9558c0ee92d9fb952b1fee399257376205d66cb92220b9b8a00d372c700bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9600f2b2da4fdc5ec32156344e611505dee1553b2b9fdc208ed68760457f7706
[INFO] running `Command { std: "docker" "start" "-a" "9600f2b2da4fdc5ec32156344e611505dee1553b2b9fdc208ed68760457f7706", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking kay_codegen v0.3.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&syn::FnArg` instead of cloning the inner type
[INFO] [stdout]    --> src/parsers.rs:182:173
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...y, ..}), ..})) = sig.decl.inputs.last().map(|pair| pair.value().clone()) {
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&syn::FnArg` instead of cloning the inner type
[INFO] [stdout]    --> src/parsers.rs:186:70
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 match sig.decl.inputs.first().map(|pair| pair.value().clone()) {
[INFO] [stdout]     |                                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&syn::FnArg` instead of cloning the inner type
[INFO] [stdout]    --> src/parsers.rs:182:173
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...y, ..}), ..})) = sig.decl.inputs.last().map(|pair| pair.value().clone()) {
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&syn::FnArg` instead of cloning the inner type
[INFO] [stdout]    --> src/parsers.rs:186:70
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 match sig.decl.inputs.first().map(|pair| pair.value().clone()) {
[INFO] [stdout]     |                                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "9600f2b2da4fdc5ec32156344e611505dee1553b2b9fdc208ed68760457f7706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9600f2b2da4fdc5ec32156344e611505dee1553b2b9fdc208ed68760457f7706", kill_on_drop: false }`
[INFO] [stdout] 9600f2b2da4fdc5ec32156344e611505dee1553b2b9fdc208ed68760457f7706