[INFO] updating cached repository https://github.com/aunetx/Dust
[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] ec2a6c4e7c852f294ecb6d8296e6200a7c446624
[INFO] checking aunetx/Dust against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faunetx%2FDust" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aunetx/Dust 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/aunetx/Dust
[INFO] finished tweaking git repo https://github.com/aunetx/Dust
[INFO] tweaked toml for git repo https://github.com/aunetx/Dust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aunetx/Dust 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]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 0742d1be585e0f8a47533413148bd6647a90d9535c8c8329fae1eb60c3b9e7ec
[INFO] running `"docker" "start" "-a" "0742d1be585e0f8a47533413148bd6647a90d9535c8c8329fae1eb60c3b9e7ec"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking simplelog v0.7.2
[INFO] [stderr]     Checking dust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `contains_content`
[INFO] [stderr]    --> src/main.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |     let contains_content = !content.is_empty();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_contains_content`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contains_content`
[INFO] [stderr]    --> src/main.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |     let contains_content = !content.is_empty();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_contains_content`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `"docker" "inspect" "0742d1be585e0f8a47533413148bd6647a90d9535c8c8329fae1eb60c3b9e7ec"`
[INFO] running `"docker" "rm" "-f" "0742d1be585e0f8a47533413148bd6647a90d9535c8c8329fae1eb60c3b9e7ec"`
[INFO] [stdout] 0742d1be585e0f8a47533413148bd6647a90d9535c8c8329fae1eb60c3b9e7ec