[INFO] cloning repository https://github.com/dirk/metriqsd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dirk/metriqsd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2Fmetriqsd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2Fmetriqsd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 261131f92244a32b57e2c16364e1661db2d39b76
[INFO] checking dirk/metriqsd against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2Fmetriqsd" "/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/dirk/metriqsd on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dirk/metriqsd
[INFO] finished tweaking git repo https://github.com/dirk/metriqsd
[INFO] tweaked toml for git repo https://github.com/dirk/metriqsd written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/dirk/metriqsd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4171c7a031a0ca9c731015594beec49382f9ceb32511a3e012ef883169e3696
[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" "b4171c7a031a0ca9c731015594beec49382f9ceb32511a3e012ef883169e3696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4171c7a031a0ca9c731015594beec49382f9ceb32511a3e012ef883169e3696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4171c7a031a0ca9c731015594beec49382f9ceb32511a3e012ef883169e3696", kill_on_drop: false }`
[INFO] [stdout] b4171c7a031a0ca9c731015594beec49382f9ceb32511a3e012ef883169e3696
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] bba05fb78df915fe325aa5a75287b10788587d00df5a9685f52de3385eb158f9
[INFO] running `Command { std: "docker" "start" "-a" "bba05fb78df915fe325aa5a75287b10788587d00df5a9685f52de3385eb158f9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking phf_shared v0.7.21
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling string_cache v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking metriqs v0.1.6
[INFO] [stderr]     Checking metriqsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/runner.rs:50:41
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for mut recv in self.recv.drain((..)) {
[INFO] [stdout]    |                                         ^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/runner.rs:50:41
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for mut recv in self.recv.drain((..)) {
[INFO] [stdout]    |                                         ^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.54s
[INFO] running `Command { std: "docker" "inspect" "bba05fb78df915fe325aa5a75287b10788587d00df5a9685f52de3385eb158f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba05fb78df915fe325aa5a75287b10788587d00df5a9685f52de3385eb158f9", kill_on_drop: false }`
[INFO] [stdout] bba05fb78df915fe325aa5a75287b10788587d00df5a9685f52de3385eb158f9