Dec 19 20:17:49.703 INFO checking ashelleyPurdue/rust_prng against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:17:49.703 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/ashelleyPurdue/rust_prng:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:17:50.194 INFO [stdout] 027431b054fc241d7becfe0c8e02cc28858633bc0e9651d48d36006f3f7adb4f
Dec 19 20:17:50.196 INFO running `"docker" "start" "-a" "027431b054fc241d7becfe0c8e02cc28858633bc0e9651d48d36006f3f7adb4f"`
Dec 19 20:17:52.457 INFO [stderr]     Checking rng_struct v0.1.0 (/opt/crater/workdir)
Dec 19 20:17:52.920 INFO [stderr] warning: field is never used: `seed`
Dec 19 20:17:52.920 INFO [stderr]  --> src/random.rs:5:5
Dec 19 20:17:52.920 INFO [stderr]   |
Dec 19 20:17:52.920 INFO [stderr] 5 |     seed: u64,
Dec 19 20:17:52.920 INFO [stderr]   |     ^^^^^^^^^
Dec 19 20:17:52.920 INFO [stderr]   |
Dec 19 20:17:52.920 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 20:17:52.920 INFO [stderr] 
Dec 19 20:17:52.920 INFO [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
Dec 19 20:17:52.920 INFO [stderr]  --> src/hashing.rs:1:1
Dec 19 20:17:52.920 INFO [stderr]   |
Dec 19 20:17:52.920 INFO [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
Dec 19 20:17:52.920 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.920 INFO [stderr] 
Dec 19 20:17:52.920 INFO [stderr] warning: function is never used: `mod_exp_hash`
Dec 19 20:17:52.920 INFO [stderr]   --> src/hashing.rs:18:1
Dec 19 20:17:52.921 INFO [stderr]    |
Dec 19 20:17:52.921 INFO [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
Dec 19 20:17:52.921 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.921 INFO [stderr] 
Dec 19 20:17:52.921 INFO [stderr] warning: function is never used: `mod_exp`
Dec 19 20:17:52.921 INFO [stderr]   --> src/hashing.rs:31:1
Dec 19 20:17:52.921 INFO [stderr]    |
Dec 19 20:17:52.921 INFO [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
Dec 19 20:17:52.921 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.921 INFO [stderr] 
Dec 19 20:17:52.997 INFO [stderr] warning: field is never used: `seed`
Dec 19 20:17:52.997 INFO [stderr]  --> src/random.rs:5:5
Dec 19 20:17:52.998 INFO [stderr]   |
Dec 19 20:17:52.998 INFO [stderr] 5 |     seed: u64,
Dec 19 20:17:52.998 INFO [stderr]   |     ^^^^^^^^^
Dec 19 20:17:52.998 INFO [stderr]   |
Dec 19 20:17:52.998 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 20:17:52.998 INFO [stderr] 
Dec 19 20:17:52.998 INFO [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
Dec 19 20:17:52.998 INFO [stderr]  --> src/hashing.rs:1:1
Dec 19 20:17:52.998 INFO [stderr]   |
Dec 19 20:17:52.998 INFO [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
Dec 19 20:17:52.998 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.998 INFO [stderr] 
Dec 19 20:17:52.998 INFO [stderr] warning: function is never used: `mod_exp_hash`
Dec 19 20:17:52.998 INFO [stderr]   --> src/hashing.rs:18:1
Dec 19 20:17:52.998 INFO [stderr]    |
Dec 19 20:17:52.998 INFO [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
Dec 19 20:17:52.998 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.998 INFO [stderr] 
Dec 19 20:17:52.998 INFO [stderr] warning: function is never used: `mod_exp`
Dec 19 20:17:52.998 INFO [stderr]   --> src/hashing.rs:31:1
Dec 19 20:17:52.998 INFO [stderr]    |
Dec 19 20:17:52.998 INFO [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
Dec 19 20:17:52.998 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:17:52.998 INFO [stderr] 
Dec 19 20:17:53.040 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Dec 19 20:17:54.054 INFO running `"docker" "inspect" "027431b054fc241d7becfe0c8e02cc28858633bc0e9651d48d36006f3f7adb4f"`
Dec 19 20:17:54.332 INFO running `"docker" "rm" "-f" "027431b054fc241d7becfe0c8e02cc28858633bc0e9651d48d36006f3f7adb4f"`
Dec 19 20:17:54.636 INFO [stdout] 027431b054fc241d7becfe0c8e02cc28858633bc0e9651d48d36006f3f7adb4f