[INFO] cloning repository https://github.com/rednithin/RustCompetitiveEnv [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 07a92b3198ff0be5e8e082fc0e570701a1508d91 [INFO] checking rednithin/RustCompetitiveEnv against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rednithin/RustCompetitiveEnv on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-3/source/Cargo.toml [INFO] crate git repo https://github.com/rednithin/RustCompetitiveEnv already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 87d72a69e90ca6a838bcf95a539191a9ab83d830dc22784fe48763addd8615f6 [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" "87d72a69e90ca6a838bcf95a539191a9ab83d830dc22784fe48763addd8615f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "87d72a69e90ca6a838bcf95a539191a9ab83d830dc22784fe48763addd8615f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87d72a69e90ca6a838bcf95a539191a9ab83d830dc22784fe48763addd8615f6", kill_on_drop: false }` [INFO] [stdout] 87d72a69e90ca6a838bcf95a539191a9ab83d830dc22784fe48763addd8615f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f2abc76fb7873057a972d8251e151e1fbd1ee2f66c328b772848284203de689e [INFO] running `Command { std: "docker" "start" "-a" "f2abc76fb7873057a972d8251e151e1fbd1ee2f66c328b772848284203de689e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking cfg-if v0.1.10 [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] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lcg` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lcg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut lcg = rand::LCG::new(1664525, 1013904223, 1 << 47, Some(0)); // Java's Constants [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut lcg = rand::LCG::new(6364136223846793005, 1, 1 << 63, None); // MMIX Donald Knuth [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut lcg = rand::XoShiro256SS::new(None); // XoShiro256SS [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_kth_largest` [INFO] [stdout] --> src/competitive/kth.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn find_kth_largest(nums: &Vec, mut k: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `a` [INFO] [stdout] --> src/competitive/rand.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | a: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `b` [INFO] [stdout] --> src/competitive/rand.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | b: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `m` [INFO] [stdout] --> src/competitive/rand.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | m: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> src/competitive/rand.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | x: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next` [INFO] [stdout] --> src/competitive/rand.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn next(&mut self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_kth_largest` [INFO] [stdout] --> src/competitive/kth.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn find_kth_largest(nums: &Vec, mut k: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `a` [INFO] [stdout] --> src/competitive/rand.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | a: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `b` [INFO] [stdout] --> src/competitive/rand.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | b: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `m` [INFO] [stdout] --> src/competitive/rand.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | m: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> src/competitive/rand.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | x: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next` [INFO] [stdout] --> src/competitive/rand.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn next(&mut self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.67s [INFO] running `Command { std: "docker" "inspect" "f2abc76fb7873057a972d8251e151e1fbd1ee2f66c328b772848284203de689e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2abc76fb7873057a972d8251e151e1fbd1ee2f66c328b772848284203de689e", kill_on_drop: false }` [INFO] [stdout] f2abc76fb7873057a972d8251e151e1fbd1ee2f66c328b772848284203de689e