[INFO] cloning repository https://github.com/peter-wilkins-mayden/percolation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peter-wilkins-mayden/percolation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-wilkins-mayden%2Fpercolation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-wilkins-mayden%2Fpercolation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56392c28377f4d6615d990b0d4f7e36133a41822
[INFO] checking peter-wilkins-mayden/percolation against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-wilkins-mayden%2Fpercolation" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peter-wilkins-mayden/percolation on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/peter-wilkins-mayden/percolation
[INFO] finished tweaking git repo https://github.com/peter-wilkins-mayden/percolation
[INFO] tweaked toml for git repo https://github.com/peter-wilkins-mayden/percolation written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/peter-wilkins-mayden/percolation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 765e437973b5e1fc327a0f5200f032cc5937842c57456e32a0096779faea2b15
[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" "765e437973b5e1fc327a0f5200f032cc5937842c57456e32a0096779faea2b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765e437973b5e1fc327a0f5200f032cc5937842c57456e32a0096779faea2b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765e437973b5e1fc327a0f5200f032cc5937842c57456e32a0096779faea2b15", kill_on_drop: false }`
[INFO] [stdout] 765e437973b5e1fc327a0f5200f032cc5937842c57456e32a0096779faea2b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26156a599604af66c8b81927691ee2e78627b15d43304ec3d25320ddbc356031
[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" "26156a599604af66c8b81927691ee2e78627b15d43304ec3d25320ddbc356031", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking arrayvec v0.4.11
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking perc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `corner_case`
[INFO] [stdout]    --> src/perc.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn corner_case() {
[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 10.26s
[INFO] running `Command { std: "docker" "inspect" "26156a599604af66c8b81927691ee2e78627b15d43304ec3d25320ddbc356031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26156a599604af66c8b81927691ee2e78627b15d43304ec3d25320ddbc356031", kill_on_drop: false }`
[INFO] [stdout] 26156a599604af66c8b81927691ee2e78627b15d43304ec3d25320ddbc356031