[INFO] updating cached repository https://github.com/picklenerd/counterfeit
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7afda92ac59dc78398baa9d0dedf0cc71cf5e03a
[INFO] checking picklenerd/counterfeit against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpicklenerd%2Fcounterfeit" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/picklenerd/counterfeit on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/picklenerd/counterfeit
[INFO] finished tweaking git repo https://github.com/picklenerd/counterfeit
[INFO] tweaked toml for git repo https://github.com/picklenerd/counterfeit written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/picklenerd/counterfeit already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "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] 70334ac7299feba41976664a235994ac5b0b4c52c76c000bef0e24a854e14a9e
[INFO] running `"docker" "start" "-a" "70334ac7299feba41976664a235994ac5b0b4c52c76c000bef0e24a854e14a9e"`
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking counterfeit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `force_file_prefix`
[INFO] [stderr]   --> src/config.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 |         force_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `force_file_prefix: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ignore_file_prefix`
[INFO] [stderr]   --> src/config.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ignore_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `ignore_file_prefix: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `force_file_prefix`
[INFO] [stderr]   --> src/config.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 |         force_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `force_file_prefix: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ignore_file_prefix`
[INFO] [stderr]   --> src/config.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ignore_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `ignore_file_prefix: _`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.19s
[INFO] running `"docker" "inspect" "70334ac7299feba41976664a235994ac5b0b4c52c76c000bef0e24a854e14a9e"`
[INFO] running `"docker" "rm" "-f" "70334ac7299feba41976664a235994ac5b0b4c52c76c000bef0e24a854e14a9e"`
[INFO] [stdout] 70334ac7299feba41976664a235994ac5b0b4c52c76c000bef0e24a854e14a9e