[INFO] updating cached repository https://github.com/ashelleyPurdue/rust_prng
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 948fa6b1a85743cb932169b13ec47ea1c21fc390
[INFO] checking ashelleyPurdue/rust_prng against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FashelleyPurdue%2Frust_prng" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ashelleyPurdue/rust_prng on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ashelleyPurdue/rust_prng
[INFO] finished tweaking git repo https://github.com/ashelleyPurdue/rust_prng
[INFO] tweaked toml for git repo https://github.com/ashelleyPurdue/rust_prng written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ashelleyPurdue/rust_prng already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e7db5a866dd57ec3b4ecee9fdf5e7e159a29d0eaebf1a38a5d0c03d79857b3d
[INFO] running `"docker" "start" "-a" "7e7db5a866dd57ec3b4ecee9fdf5e7e159a29d0eaebf1a38a5d0c03d79857b3d"`
[INFO] [stderr]     Checking rng_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `seed`
[INFO] [stderr]  --> src/random.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     seed: u64,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
[INFO] [stderr]  --> src/hashing.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp_hash`
[INFO] [stderr]   --> src/hashing.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp`
[INFO] [stderr]   --> src/hashing.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `seed`
[INFO] [stderr]  --> src/random.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     seed: u64,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
[INFO] [stderr]  --> src/hashing.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp_hash`
[INFO] [stderr]   --> src/hashing.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp`
[INFO] [stderr]   --> src/hashing.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "7e7db5a866dd57ec3b4ecee9fdf5e7e159a29d0eaebf1a38a5d0c03d79857b3d"`
[INFO] running `"docker" "rm" "-f" "7e7db5a866dd57ec3b4ecee9fdf5e7e159a29d0eaebf1a38a5d0c03d79857b3d"`
[INFO] [stdout] 7e7db5a866dd57ec3b4ecee9fdf5e7e159a29d0eaebf1a38a5d0c03d79857b3d