[INFO] cloning repository https://github.com/egshnov/RustHW2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/egshnov/RustHW2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegshnov%2FRustHW2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegshnov%2FRustHW2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a85ad5c50662d622ceabeab0de94cea0f33517ae [INFO] checking egshnov/RustHW2 against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119825 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegshnov%2FRustHW2" "/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/egshnov/RustHW2 on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/egshnov/RustHW2 [INFO] finished tweaking git repo https://github.com/egshnov/RustHW2 [INFO] tweaked toml for git repo https://github.com/egshnov/RustHW2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/egshnov/RustHW2 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" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 egshnov/RustHW2 against try#925e66ec5d7d73da31ddd13e53f21e4674feb4ba for pr-119825 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegshnov%2FRustHW2" "/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/egshnov/RustHW2 on toolchain 925e66ec5d7d73da31ddd13e53f21e4674feb4ba [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/egshnov/RustHW2 [INFO] finished tweaking git repo https://github.com/egshnov/RustHW2 [INFO] tweaked toml for git repo https://github.com/egshnov/RustHW2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/egshnov/RustHW2 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" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "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" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15458439ba8b5e63549e10b8fcb6dcd6a6e5391d96b922ce377b21a13ef9d07a [INFO] running `Command { std: "docker" "start" "-a" "15458439ba8b5e63549e10b8fcb6dcd6a6e5391d96b922ce377b21a13ef9d07a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15458439ba8b5e63549e10b8fcb6dcd6a6e5391d96b922ce377b21a13ef9d07a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15458439ba8b5e63549e10b8fcb6dcd6a6e5391d96b922ce377b21a13ef9d07a", kill_on_drop: false }` [INFO] [stdout] 15458439ba8b5e63549e10b8fcb6dcd6a6e5391d96b922ce377b21a13ef9d07a [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" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 45194f4d41580d041f11e04ae1c56e5c5d6694ca28724488715df3fd4266dbb3 [INFO] running `Command { std: "docker" "start" "-a" "45194f4d41580d041f11e04ae1c56e5c5d6694ca28724488715df3fd4266dbb3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking ordered-float v4.1.1 [INFO] [stderr] Checking RustHW2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/main.rs:4:29 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Write, Error, BufReader}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::read_to_string` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fs::read_to_string; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/main.rs:4:29 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Write, Error, BufReader}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::read_to_string` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fs::read_to_string; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:93:54 [INFO] [stdout] | [INFO] [stdout] 93 | average_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 93 - average_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] 93 + average_buckets[buck_ind] /= N_i as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:99:57 [INFO] [stdout] | [INFO] [stdout] 99 | dispersion_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 99 - dispersion_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] 99 + dispersion_buckets[buck_ind] /= N_i as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:119:45 [INFO] [stdout] | [INFO] [stdout] 119 | dispersion_buckets[buck_ind] /= (lines_counter as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 119 - dispersion_buckets[buck_ind] /= (lines_counter as f64); [INFO] [stdout] 119 + dispersion_buckets[buck_ind] /= lines_counter as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:93:54 [INFO] [stdout] | [INFO] [stdout] 93 | average_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 93 - average_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] 93 + average_buckets[buck_ind] /= N_i as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:99:57 [INFO] [stdout] | [INFO] [stdout] 99 | dispersion_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 99 - dispersion_buckets[buck_ind] /= (N_i as f64); [INFO] [stdout] 99 + dispersion_buckets[buck_ind] /= N_i as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:119:45 [INFO] [stdout] | [INFO] [stdout] 119 | dispersion_buckets[buck_ind] /= (lines_counter as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 119 - dispersion_buckets[buck_ind] /= (lines_counter as f64); [INFO] [stdout] 119 + dispersion_buckets[buck_ind] /= lines_counter as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `median` is never read [INFO] [stdout] --> src/main.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | let mut median: f64 = 0.0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `median` is never read [INFO] [stdout] --> src/main.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | let mut median: f64 = 0.0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:136:17 [INFO] [stdout] | [INFO] [stdout] 136 | let mut prev_mean = sample_mean; [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:136:17 [INFO] [stdout] | [INFO] [stdout] 136 | let mut prev_mean = sample_mean; [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: function `generate_file` is never used [INFO] [stdout] --> src/main.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn generate_file(num: i64, name: &str) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_file` is never used [INFO] [stdout] --> src/main.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn generate_file(num: i64, name: &str) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `filename`, `min`, `max`, `median`, `left_tail`, and `right_tail` are never read [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Stats { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | filename: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | min: f64, [INFO] [stdout] | ^^^ [INFO] [stdout] 30 | max: f64, [INFO] [stdout] | ^^^ [INFO] [stdout] 31 | median: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 32 | left_tail: BinaryHeap>, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 33 | right_tail: BinaryHeap>>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `RustHW2` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = help: convert the identifier to snake case: `rust_hw2` [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `N_i` should have an upper case name [INFO] [stdout] --> src/main.rs:12:7 [INFO] [stdout] | [INFO] [stdout] 12 | const N_i: usize = 2048; [INFO] [stdout] | ^^^ help: convert the identifier to upper case (notice the capitalization): `N_I` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `filename`, `min`, `max`, `median`, `left_tail`, and `right_tail` are never read [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Stats { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | filename: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | min: f64, [INFO] [stdout] | ^^^ [INFO] [stdout] 30 | max: f64, [INFO] [stdout] | ^^^ [INFO] [stdout] 31 | median: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 32 | left_tail: BinaryHeap>, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 33 | right_tail: BinaryHeap>>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `RustHW2` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = help: convert the identifier to snake case: `rust_hw2` [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `N_i` should have an upper case name [INFO] [stdout] --> src/main.rs:12:7 [INFO] [stdout] | [INFO] [stdout] 12 | const N_i: usize = 2048; [INFO] [stdout] | ^^^ help: convert the identifier to upper case (notice the capitalization): `N_I` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | write!(output, "{f}\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | write!(output, "{f}\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.22s [INFO] running `Command { std: "docker" "inspect" "45194f4d41580d041f11e04ae1c56e5c5d6694ca28724488715df3fd4266dbb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45194f4d41580d041f11e04ae1c56e5c5d6694ca28724488715df3fd4266dbb3", kill_on_drop: false }` [INFO] [stdout] 45194f4d41580d041f11e04ae1c56e5c5d6694ca28724488715df3fd4266dbb3