[INFO] crate elma 0.1.14 is already in cache
[INFO] checking elma-0.1.14 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate elma 0.1.14 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate elma 0.1.14 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate elma 0.1.14
[INFO] finished tweaking crates.io crate elma 0.1.14
[INFO] tweaked toml for crates.io crate elma 0.1.14 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 3642fc2c2621dbe29e7d2e0bbf6c61dd9104346c2ba6a865f0dfae25e9861a55
[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" "3642fc2c2621dbe29e7d2e0bbf6c61dd9104346c2ba6a865f0dfae25e9861a55"`
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking elma v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lev.rs:837:9
[INFO] [stderr]     |
[INFO] [stderr] 837 |     for mut t in top10.iter_mut().take(TOP10_SIZE) {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lev.rs:837:9
[INFO] [stderr]     |
[INFO] [stderr] 837 |     for mut t in top10.iter_mut().take(TOP10_SIZE) {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/state.rs:497:9
[INFO] [stderr]     |
[INFO] [stderr] 497 |     for mut t in buffer.iter_mut() {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/state.rs:497:9
[INFO] [stderr]     |
[INFO] [stderr] 497 |     for mut t in buffer.iter_mut() {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `"docker" "inspect" "3642fc2c2621dbe29e7d2e0bbf6c61dd9104346c2ba6a865f0dfae25e9861a55"`
[INFO] running `"docker" "rm" "-f" "3642fc2c2621dbe29e7d2e0bbf6c61dd9104346c2ba6a865f0dfae25e9861a55"`
[INFO] [stdout] 3642fc2c2621dbe29e7d2e0bbf6c61dd9104346c2ba6a865f0dfae25e9861a55