[INFO] cloning repository https://github.com/brandonpollack23/euler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brandonpollack23/euler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandonpollack23%2Feuler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandonpollack23%2Feuler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b85ba2b708ec11b72f7caabadfcf85e2a0b41be
[INFO] checking brandonpollack23/euler-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandonpollack23%2Feuler-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brandonpollack23/euler-rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brandonpollack23/euler-rust
[INFO] finished tweaking git repo https://github.com/brandonpollack23/euler-rust
[INFO] tweaked toml for git repo https://github.com/brandonpollack23/euler-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/brandonpollack23/euler-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4b9d82f502311e77aa8f163c0136a6baed83d3ff2478ab8f0d4827e0c4c9b3f
[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" "d4b9d82f502311e77aa8f163c0136a6baed83d3ff2478ab8f0d4827e0c4c9b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4b9d82f502311e77aa8f163c0136a6baed83d3ff2478ab8f0d4827e0c4c9b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b9d82f502311e77aa8f163c0136a6baed83d3ff2478ab8f0d4827e0c4c9b3f", kill_on_drop: false }`
[INFO] [stdout] d4b9d82f502311e77aa8f163c0136a6baed83d3ff2478ab8f0d4827e0c4c9b3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa6238272b36321d4c4c32ba7425894fb19d4abb626f74459afb136c828135c2
[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" "aa6238272b36321d4c4c32ba7425894fb19d4abb626f74459afb136c828135c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.10
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling rug v1.2.3
[INFO] [stderr]     Checking euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |   let prime_factors: Vec<(usize)> = possible_primes
[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 type
[INFO] [stdout]   --> src/main.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |   let prime_factors: Vec<(usize)> = possible_primes
[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 3m 39s
[INFO] running `Command { std: "docker" "inspect" "aa6238272b36321d4c4c32ba7425894fb19d4abb626f74459afb136c828135c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6238272b36321d4c4c32ba7425894fb19d4abb626f74459afb136c828135c2", kill_on_drop: false }`
[INFO] [stdout] aa6238272b36321d4c4c32ba7425894fb19d4abb626f74459afb136c828135c2