[INFO] updating cached repository https://github.com/ctiedt/dwmstat-rs
[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] 0b4078ef82cc03711896b2dbf9d3d53a637625bb
[INFO] checking ctiedt/dwmstat-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctiedt%2Fdwmstat-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctiedt/dwmstat-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ctiedt/dwmstat-rs
[INFO] finished tweaking git repo https://github.com/ctiedt/dwmstat-rs
[INFO] tweaked toml for git repo https://github.com/ctiedt/dwmstat-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ctiedt/dwmstat-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] a76c9c397abcfbf547d7c740d5093184b229183ba282961ab80aa525b4c83c25
[INFO] running `"docker" "start" "-a" "a76c9c397abcfbf547d7c740d5093184b229183ba282961ab80aa525b4c83c25"`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling sysinfo v0.11.2
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking dwmstat-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `NetworkExt`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sysinfo::{NetworkExt, Processor, ProcessorExt, System, SystemExt};
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NetworkExt`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sysinfo::{NetworkExt, Processor, ProcessorExt, System, SystemExt};
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     loop {
[INFO] [stderr] 51 | |         system.refresh_all();
[INFO] [stderr] 52 | |         let values = [get_wifi()?, get_cpu(&system), get_mem(&system), get_time()];
[INFO] [stderr] 53 | |         status = values.join(" ⟪ ");
[INFO] [stderr] 54 | |         update_status(&status);
[INFO] [stderr] 55 | |         thread::sleep(Duration::from_millis(1000));
[INFO] [stderr] 56 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 57 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     loop {
[INFO] [stderr] 51 | |         system.refresh_all();
[INFO] [stderr] 52 | |         let values = [get_wifi()?, get_cpu(&system), get_mem(&system), get_time()];
[INFO] [stderr] 53 | |         status = values.join(" ⟪ ");
[INFO] [stderr] 54 | |         update_status(&status);
[INFO] [stderr] 55 | |         thread::sleep(Duration::from_millis(1000));
[INFO] [stderr] 56 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 57 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.06s
[INFO] running `"docker" "inspect" "a76c9c397abcfbf547d7c740d5093184b229183ba282961ab80aa525b4c83c25"`
[INFO] running `"docker" "rm" "-f" "a76c9c397abcfbf547d7c740d5093184b229183ba282961ab80aa525b4c83c25"`
[INFO] [stdout] a76c9c397abcfbf547d7c740d5093184b229183ba282961ab80aa525b4c83c25