[INFO] cloning repository https://github.com/rarebreed/brushup-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rarebreed/brushup-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frarebreed%2Fbrushup-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frarebreed%2Fbrushup-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a97a18ea2aa982229071741851af75164b6ad62
[INFO] checking rarebreed/brushup-rs against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frarebreed%2Fbrushup-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rarebreed/brushup-rs on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rarebreed/brushup-rs
[INFO] finished tweaking git repo https://github.com/rarebreed/brushup-rs
[INFO] tweaked toml for git repo https://github.com/rarebreed/brushup-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/rarebreed/brushup-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 663ab95e55ae7a120a431c2cabc724660dd005a1d13701ee43fa37c3e3b476ca
[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" "663ab95e55ae7a120a431c2cabc724660dd005a1d13701ee43fa37c3e3b476ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663ab95e55ae7a120a431c2cabc724660dd005a1d13701ee43fa37c3e3b476ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663ab95e55ae7a120a431c2cabc724660dd005a1d13701ee43fa37c3e3b476ca", kill_on_drop: false }`
[INFO] [stdout] 663ab95e55ae7a120a431c2cabc724660dd005a1d13701ee43fa37c3e3b476ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08fed053554cabf86a1cc522b5479c2a7b9856596e95cf0563c1618ec3d5bfb7
[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" "08fed053554cabf86a1cc522b5479c2a7b9856596e95cf0563c1618ec3d5bfb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking dynamic v0.1.0 (/opt/rustwide/workdir/dynamic)
[INFO] [stderr]     Checking tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stderr]     Checking greedy v0.1.0 (/opt/rustwide/workdir/greedy)
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.1
[INFO] [stderr]     Checking arrays v0.1.0 (/opt/rustwide/workdir/arrays)
[INFO] [stdout] warning: unused variable: `meetings`
[INFO] [stdout]   --> arrays/src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let meetings = create_meetings(100);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_meetings`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_meetings`
[INFO] [stdout]   --> arrays/src/helpers/utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn create_meetings(num_meetings: u16) -> Vec<MeetingTime>  {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 5.22s
[INFO] running `Command { std: "docker" "inspect" "08fed053554cabf86a1cc522b5479c2a7b9856596e95cf0563c1618ec3d5bfb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fed053554cabf86a1cc522b5479c2a7b9856596e95cf0563c1618ec3d5bfb7", kill_on_drop: false }`
[INFO] [stdout] 08fed053554cabf86a1cc522b5479c2a7b9856596e95cf0563c1618ec3d5bfb7