[INFO] crate topdown-rs 0.3.3 is already in cache
[INFO] checking topdown-rs-0.3.3 against try#5e633973aa9255a88b65a39484627bb54e6044b3 for pr-66063
[INFO] extracting crate topdown-rs 0.3.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate topdown-rs 0.3.3 on toolchain 5e633973aa9255a88b65a39484627bb54e6044b3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate topdown-rs 0.3.3
[INFO] finished tweaking crates.io crate topdown-rs 0.3.3
[INFO] tweaked toml for crates.io crate topdown-rs 0.3.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=allow" "-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" "+5e633973aa9255a88b65a39484627bb54e6044b3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] df5851219e2fe3d6b5ea479a251078fddbaafea043e152a5e6f188ad88879406
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "df5851219e2fe3d6b5ea479a251078fddbaafea043e152a5e6f188ad88879406"`
[INFO] [stderr]     Checking topdown-rs v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0392]: parameter `'a` is never used
[INFO] [stderr]   --> src/chainl.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |     struct Op<'a>;
[INFO] [stderr]    |               ^^ unused parameter
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `std::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `'a` is never used
[INFO] [stderr]   --> src/chainr.rs:47:15
[INFO] [stderr]    |
[INFO] [stderr] 47 |     struct Op<'a>;
[INFO] [stderr]    |               ^^ unused parameter
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `std::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0392`.
[INFO] [stderr] error: could not compile `topdown-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "df5851219e2fe3d6b5ea479a251078fddbaafea043e152a5e6f188ad88879406"`
[INFO] running `"docker" "rm" "-f" "df5851219e2fe3d6b5ea479a251078fddbaafea043e152a5e6f188ad88879406"`
[INFO] [stdout] df5851219e2fe3d6b5ea479a251078fddbaafea043e152a5e6f188ad88879406