[INFO] fetching crate sysutil 0.7.1...
[INFO] checking sysutil-0.7.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate sysutil 0.7.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate sysutil 0.7.1
[INFO] finished tweaking crates.io crate sysutil 0.7.1
[INFO] tweaked toml for crates.io crate sysutil 0.7.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sysutil 0.7.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding rsjson v0.5.1 (available: v0.6.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f8b74925a3b2d75580360d0479157d6314f60b51d24398d4964b9e3f27560b4
[INFO] running `Command { std: "docker" "start" "-a" "2f8b74925a3b2d75580360d0479157d6314f60b51d24398d4964b9e3f27560b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f8b74925a3b2d75580360d0479157d6314f60b51d24398d4964b9e3f27560b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8b74925a3b2d75580360d0479157d6314f60b51d24398d4964b9e3f27560b4", kill_on_drop: false }`
[INFO] [stdout] 2f8b74925a3b2d75580360d0479157d6314f60b51d24398d4964b9e3f27560b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 130475db76e97b6a13a053c5e6a32cf56ee5c37857eaabb8a06f30e625a3168f
[INFO] running `Command { std: "docker" "start" "-a" "130475db76e97b6a13a053c5e6a32cf56ee5c37857eaabb8a06f30e625a3168f", kill_on_drop: false }`
[INFO] [stderr]     Checking rsjson v0.5.1
[INFO] [stderr]     Checking sysutil v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/cpu.rs:588:22
[INFO] [stdout]     |
[INFO] [stdout] 588 |         for chunk in chunks {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 588 -         for chunk in chunks {
[INFO] [stdout] 588 +         while let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 588 -         for chunk in chunks {
[INFO] [stdout] 588 +         if let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/cpu.rs:588:22
[INFO] [stdout]     |
[INFO] [stdout] 588 |         for chunk in chunks {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 588 -         for chunk in chunks {
[INFO] [stdout] 588 +         while let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 588 -         for chunk in chunks {
[INFO] [stdout] 588 +         if let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "130475db76e97b6a13a053c5e6a32cf56ee5c37857eaabb8a06f30e625a3168f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "130475db76e97b6a13a053c5e6a32cf56ee5c37857eaabb8a06f30e625a3168f", kill_on_drop: false }`
[INFO] [stdout] 130475db76e97b6a13a053c5e6a32cf56ee5c37857eaabb8a06f30e625a3168f