[INFO] updating cached repository https://github.com/TotalKrill/fdupe
[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] 9b52dc6d388f37e088bf7834d39134c4a82dcbe8
[INFO] checking TotalKrill/fdupe against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTotalKrill%2Ffdupe" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  77% (24/31)   
Checking out files:  80% (25/31)   
Checking out files:  83% (26/31)   
Checking out files:  87% (27/31)   
Checking out files:  90% (28/31)   
Checking out files:  93% (29/31)   
Checking out files:  96% (30/31)   
Checking out files: 100% (31/31)   
Checking out files: 100% (31/31), done.
[INFO] validating manifest of git repo https://github.com/TotalKrill/fdupe on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/TotalKrill/fdupe
[INFO] finished tweaking git repo https://github.com/TotalKrill/fdupe
[INFO] tweaked toml for git repo https://github.com/TotalKrill/fdupe written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/TotalKrill/fdupe already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] 043715983e5e36f09915b45819abf22df9440ac559af5c4ca0f032661a35ad96
[INFO] running `"docker" "start" "-a" "043715983e5e36f09915b45819abf22df9440ac559af5c4ca0f032661a35ad96"`
[INFO] [stderr]     Checking file v1.1.2
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking filedupes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `find_dupes_of_original_limit`
[INFO] [stderr]    --> src/lib.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn find_dupes_of_original_limit() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `"docker" "inspect" "043715983e5e36f09915b45819abf22df9440ac559af5c4ca0f032661a35ad96"`
[INFO] running `"docker" "rm" "-f" "043715983e5e36f09915b45819abf22df9440ac559af5c4ca0f032661a35ad96"`
[INFO] [stdout] 043715983e5e36f09915b45819abf22df9440ac559af5c4ca0f032661a35ad96