Dec 18 03:47:54.962 INFO checking ashelleyPurdue/rust_prng against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 03:47:54.963 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:47:55.430 INFO [stdout] 9d5f82dc6a1519fc677ec04516fba5d30bf1f1d36ba6faaef1ec3ab137a1a58c
Dec 18 03:47:55.432 INFO running `"docker" "start" "-a" "9d5f82dc6a1519fc677ec04516fba5d30bf1f1d36ba6faaef1ec3ab137a1a58c"`
Dec 18 03:47:56.904 INFO [stderr]     Checking rng_struct v0.1.0 (/opt/crater/workdir)
Dec 18 03:47:57.482 INFO [stderr] warning: field is never used: `seed`
Dec 18 03:47:57.482 INFO [stderr]  --> src/random.rs:5:5
Dec 18 03:47:57.482 INFO [stderr]   |
Dec 18 03:47:57.482 INFO [stderr] 5 |     seed: u64,
Dec 18 03:47:57.482 INFO [stderr]   |     ^^^^^^^^^
Dec 18 03:47:57.482 INFO [stderr]   |
Dec 18 03:47:57.482 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 03:47:57.482 INFO [stderr] 
Dec 18 03:47:57.482 INFO [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
Dec 18 03:47:57.482 INFO [stderr]  --> src/hashing.rs:1:1
Dec 18 03:47:57.482 INFO [stderr]   |
Dec 18 03:47:57.482 INFO [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
Dec 18 03:47:57.482 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.482 INFO [stderr] 
Dec 18 03:47:57.482 INFO [stderr] warning: function is never used: `mod_exp_hash`
Dec 18 03:47:57.482 INFO [stderr]   --> src/hashing.rs:18:1
Dec 18 03:47:57.482 INFO [stderr]    |
Dec 18 03:47:57.482 INFO [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
Dec 18 03:47:57.482 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.482 INFO [stderr] 
Dec 18 03:47:57.482 INFO [stderr] warning: function is never used: `mod_exp`
Dec 18 03:47:57.482 INFO [stderr]   --> src/hashing.rs:31:1
Dec 18 03:47:57.482 INFO [stderr]    |
Dec 18 03:47:57.483 INFO [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
Dec 18 03:47:57.483 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.483 INFO [stderr] 
Dec 18 03:47:57.560 INFO [stderr] warning: field is never used: `seed`
Dec 18 03:47:57.560 INFO [stderr]  --> src/random.rs:5:5
Dec 18 03:47:57.560 INFO [stderr]   |
Dec 18 03:47:57.560 INFO [stderr] 5 |     seed: u64,
Dec 18 03:47:57.560 INFO [stderr]   |     ^^^^^^^^^
Dec 18 03:47:57.560 INFO [stderr]   |
Dec 18 03:47:57.560 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 03:47:57.561 INFO [stderr] 
Dec 18 03:47:57.561 INFO [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
Dec 18 03:47:57.561 INFO [stderr]  --> src/hashing.rs:1:1
Dec 18 03:47:57.561 INFO [stderr]   |
Dec 18 03:47:57.561 INFO [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
Dec 18 03:47:57.561 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.561 INFO [stderr] 
Dec 18 03:47:57.561 INFO [stderr] warning: function is never used: `mod_exp_hash`
Dec 18 03:47:57.561 INFO [stderr]   --> src/hashing.rs:18:1
Dec 18 03:47:57.561 INFO [stderr]    |
Dec 18 03:47:57.561 INFO [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
Dec 18 03:47:57.561 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.561 INFO [stderr] 
Dec 18 03:47:57.561 INFO [stderr] warning: function is never used: `mod_exp`
Dec 18 03:47:57.561 INFO [stderr]   --> src/hashing.rs:31:1
Dec 18 03:47:57.561 INFO [stderr]    |
Dec 18 03:47:57.561 INFO [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
Dec 18 03:47:57.561 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:47:57.561 INFO [stderr] 
Dec 18 03:47:57.605 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 18 03:47:58.056 INFO running `"docker" "inspect" "9d5f82dc6a1519fc677ec04516fba5d30bf1f1d36ba6faaef1ec3ab137a1a58c"`
Dec 18 03:47:58.260 INFO running `"docker" "rm" "-f" "9d5f82dc6a1519fc677ec04516fba5d30bf1f1d36ba6faaef1ec3ab137a1a58c"`
Dec 18 03:47:58.552 INFO [stdout] 9d5f82dc6a1519fc677ec04516fba5d30bf1f1d36ba6faaef1ec3ab137a1a58c