[INFO] cloning repository https://github.com/rednithin/RustCompetitiveEnv
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rednithin/RustCompetitiveEnv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f8ff72f2a2dab31b609c87403800a48f201f763f
[INFO] checking rednithin/RustCompetitiveEnv against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rednithin/RustCompetitiveEnv on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rednithin/RustCompetitiveEnv
[INFO] finished tweaking git repo https://github.com/rednithin/RustCompetitiveEnv
[INFO] tweaked toml for git repo https://github.com/rednithin/RustCompetitiveEnv written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rednithin/RustCompetitiveEnv already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "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] acb0ff1f979f9b1a28447ad793032d26d25082c097feea5a9151108f548d8341
[INFO] running `"docker" "start" "-a" "acb0ff1f979f9b1a28447ad793032d26d25082c097feea5a9151108f548d8341"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rust_competitive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/competitive/rand.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     a: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/competitive/rand.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     b: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `m`
[INFO] [stderr]  --> src/competitive/rand.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     m: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> src/competitive/rand.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     x: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]   --> src/competitive/rand.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn next(&mut self) -> u64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lcg`
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/competitive/rand.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     a: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/competitive/rand.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     b: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `m`
[INFO] [stderr]  --> src/competitive/rand.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     m: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> src/competitive/rand.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     x: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]   --> src/competitive/rand.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn next(&mut self) -> u64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.11s
[INFO] running `"docker" "inspect" "acb0ff1f979f9b1a28447ad793032d26d25082c097feea5a9151108f548d8341"`
[INFO] running `"docker" "rm" "-f" "acb0ff1f979f9b1a28447ad793032d26d25082c097feea5a9151108f548d8341"`
[INFO] [stdout] acb0ff1f979f9b1a28447ad793032d26d25082c097feea5a9151108f548d8341