[INFO] cloning repository https://github.com/lagooj/check_redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lagooj/check_redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flagooj%2Fcheck_redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flagooj%2Fcheck_redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c07981cf6846880daf12265c4d5f34c9c203bd05
[INFO] checking lagooj/check_redis against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flagooj%2Fcheck_redis" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lagooj/check_redis on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] crate git repo https://github.com/lagooj/check_redis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e08b1b2e4aa6de3b33c0fb2b0d9417b28d8de21c90b31eef43a6adca5bc4776f
[INFO] running `Command { std: "docker" "start" "-a" "e08b1b2e4aa6de3b33c0fb2b0d9417b28d8de21c90b31eef43a6adca5bc4776f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e08b1b2e4aa6de3b33c0fb2b0d9417b28d8de21c90b31eef43a6adca5bc4776f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e08b1b2e4aa6de3b33c0fb2b0d9417b28d8de21c90b31eef43a6adca5bc4776f", kill_on_drop: false }`
[INFO] [stdout] e08b1b2e4aa6de3b33c0fb2b0d9417b28d8de21c90b31eef43a6adca5bc4776f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ad1ea3a6f1cfe8b2f89be784b8aa657ff3be0009fc29dc2cabf4ffac8fefc8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0ad1ea3a6f1cfe8b2f89be784b8aa657ff3be0009fc29dc2cabf4ffac8fefc8e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling redis v0.9.1
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking smallvec v0.6.6
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[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 bytes v0.4.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking combine v3.6.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking check_redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let mut vec = vec![24,12];
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.91s
[INFO] running `Command { std: "docker" "inspect" "0ad1ea3a6f1cfe8b2f89be784b8aa657ff3be0009fc29dc2cabf4ffac8fefc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad1ea3a6f1cfe8b2f89be784b8aa657ff3be0009fc29dc2cabf4ffac8fefc8e", kill_on_drop: false }`
[INFO] [stdout] 0ad1ea3a6f1cfe8b2f89be784b8aa657ff3be0009fc29dc2cabf4ffac8fefc8e