[INFO] updating cached repository https://github.com/lagooj/check_redis
[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] c07981cf6846880daf12265c4d5f34c9c203bd05
[INFO] checking lagooj/check_redis against try#3e1efa2be2e75b3c7daf2566f8758da91312f7e8 for pr-66037-3
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flagooj%2Fcheck_redis" "/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/lagooj/check_redis on toolchain 3e1efa2be2e75b3c7daf2566f8758da91312f7e8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3e1efa2be2e75b3c7daf2566f8758da91312f7e8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lagooj/check_redis
[INFO] finished tweaking git repo https://github.com/lagooj/check_redis
[INFO] tweaked toml for git repo https://github.com/lagooj/check_redis written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lagooj/check_redis already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3e1efa2be2e75b3c7daf2566f8758da91312f7e8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+3e1efa2be2e75b3c7daf2566f8758da91312f7e8" "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] abb09f7a2eb354c5419f218c3b18daa2dea503d94605cccb0502e7887aa93203
[INFO] running `"docker" "start" "-a" "abb09f7a2eb354c5419f218c3b18daa2dea503d94605cccb0502e7887aa93203"`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking smallvec v0.6.6
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking combine v3.6.3
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking redis v0.9.1
[INFO] [stderr]     Checking check_redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut vec = vec![24,12];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 30.10s
[INFO] running `"docker" "inspect" "abb09f7a2eb354c5419f218c3b18daa2dea503d94605cccb0502e7887aa93203"`
[INFO] running `"docker" "rm" "-f" "abb09f7a2eb354c5419f218c3b18daa2dea503d94605cccb0502e7887aa93203"`
[INFO] [stdout] abb09f7a2eb354c5419f218c3b18daa2dea503d94605cccb0502e7887aa93203