[INFO] crate packer_derive 0.5.3 is already in cache
[INFO] checking packer_derive-0.5.3 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate packer_derive 0.5.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate packer_derive 0.5.3 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate packer_derive 0.5.3
[INFO] finished tweaking crates.io crate packer_derive 0.5.3
[INFO] tweaked toml for crates.io crate packer_derive 0.5.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 99a9755b0ed258b280bb47cf8baa4023e073cde80f1e61f59ea05a14f8c3e31b
[INFO] running `"docker" "start" "-a" "99a9755b0ed258b280bb47cf8baa4023e073cde80f1e61f59ea05a14f8c3e31b"`
[INFO] [stderr]     Checking syn v1.0.17
[INFO] [stderr]     Checking packer_derive v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |         .map(|(key, (path, prefix))| {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |         .map(|(key, (path, prefix))| {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.09s
[INFO] running `"docker" "inspect" "99a9755b0ed258b280bb47cf8baa4023e073cde80f1e61f59ea05a14f8c3e31b"`
[INFO] running `"docker" "rm" "-f" "99a9755b0ed258b280bb47cf8baa4023e073cde80f1e61f59ea05a14f8c3e31b"`
[INFO] [stdout] 99a9755b0ed258b280bb47cf8baa4023e073cde80f1e61f59ea05a14f8c3e31b