[INFO] updating cached repository https://github.com/StoneDot/server_monitor
[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] 1c2669d0cb713012e7517a6765cfd9f708b947d9
[INFO] checking StoneDot/server_monitor against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStoneDot%2Fserver_monitor" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StoneDot/server_monitor on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/StoneDot/server_monitor
[INFO] finished tweaking git repo https://github.com/StoneDot/server_monitor
[INFO] tweaked toml for git repo https://github.com/StoneDot/server_monitor written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/StoneDot/server_monitor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] ad2785f998df6a0eb8c0a247b00e05417380e7ee9c91c33102e79ea98125d509
[INFO] running `"docker" "start" "-a" "ad2785f998df6a0eb8c0a247b00e05417380e7ee9c91c33102e79ea98125d509"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking either v1.3.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking serde v1.0.19
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking itertools v0.7.2
[INFO] [stderr]    Compiling rustc_version v0.2.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.20
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]     Checking server_monitor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]    --> src/main.rs:244:9
[INFO] [stderr]     |
[INFO] [stderr] 244 |     let elapsed = cur_time.duration_since(UNIX_EPOCH)
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]    --> src/main.rs:244:9
[INFO] [stderr]     |
[INFO] [stderr] 244 |     let elapsed = cur_time.duration_since(UNIX_EPOCH)
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.67s
[INFO] running `"docker" "inspect" "ad2785f998df6a0eb8c0a247b00e05417380e7ee9c91c33102e79ea98125d509"`
[INFO] running `"docker" "rm" "-f" "ad2785f998df6a0eb8c0a247b00e05417380e7ee9c91c33102e79ea98125d509"`
[INFO] [stdout] ad2785f998df6a0eb8c0a247b00e05417380e7ee9c91c33102e79ea98125d509