[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 master#f4d794ea0b845413344621d89f6c945062748485 for pr-119369 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rednithin/RustCompetitiveEnv on toolchain f4d794ea0b845413344621d89f6c945062748485 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking rednithin/RustCompetitiveEnv against try#3832a95f57d4260fb5641e183906f49b4e5c6bdd for pr-119369 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frednithin%2FRustCompetitiveEnv" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rednithin/RustCompetitiveEnv on toolchain 3832a95f57d4260fb5641e183906f49b4e5c6bdd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2425924dd9b12647b4b7674e0dd473f59bdeed40454c4d9349f441db58de2cc3 [INFO] running `Command { std: "docker" "start" "-a" "2425924dd9b12647b4b7674e0dd473f59bdeed40454c4d9349f441db58de2cc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2425924dd9b12647b4b7674e0dd473f59bdeed40454c4d9349f441db58de2cc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2425924dd9b12647b4b7674e0dd473f59bdeed40454c4d9349f441db58de2cc3", kill_on_drop: false }` [INFO] [stdout] 2425924dd9b12647b4b7674e0dd473f59bdeed40454c4d9349f441db58de2cc3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 70f4110bfc9ad852d84a9dccafa619a283264bb172a2c89f0b810da233ec8c46 [INFO] running `Command { std: "docker" "start" "-a" "70f4110bfc9ad852d84a9dccafa619a283264bb172a2c89f0b810da233ec8c46", 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:22:13 [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:23:13 [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:24:13 [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:22:13 [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:23:13 [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:24:13 [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: function `find_kth_largest` is never used [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: 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: fields `a`, `b`, `m`, and `x` are never read [INFO] [stdout] --> src/competitive/rand.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct LCG { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] 5 | a: u64, [INFO] [stdout] | ^ [INFO] [stdout] 6 | b: u64, [INFO] [stdout] | ^ [INFO] [stdout] 7 | m: u64, [INFO] [stdout] | ^ [INFO] [stdout] 8 | x: u64, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `next` is never used [INFO] [stdout] --> src/competitive/rand.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl LCG { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 25 | pub fn next(&mut self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_kth_largest` is never used [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: fields `a`, `b`, `m`, and `x` are never read [INFO] [stdout] --> src/competitive/rand.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct LCG { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] 5 | a: u64, [INFO] [stdout] | ^ [INFO] [stdout] 6 | b: u64, [INFO] [stdout] | ^ [INFO] [stdout] 7 | m: u64, [INFO] [stdout] | ^ [INFO] [stdout] 8 | x: u64, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `next` is never used [INFO] [stdout] --> src/competitive/rand.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl LCG { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 25 | pub fn next(&mut self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.56s [INFO] running `Command { std: "docker" "inspect" "70f4110bfc9ad852d84a9dccafa619a283264bb172a2c89f0b810da233ec8c46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70f4110bfc9ad852d84a9dccafa619a283264bb172a2c89f0b810da233ec8c46", kill_on_drop: false }` [INFO] [stdout] 70f4110bfc9ad852d84a9dccafa619a283264bb172a2c89f0b810da233ec8c46