[INFO] cloning repository https://github.com/MrPyva/useless_shit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrPyva/useless_shit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrPyva%2Fuseless_shit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrPyva%2Fuseless_shit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0ebc5378590abd7c3924b1fb789fecbed5d124b4 [INFO] checking MrPyva/useless_shit against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrPyva%2Fuseless_shit" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MrPyva/useless_shit on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MrPyva/useless_shit [INFO] finished tweaking git repo https://github.com/MrPyva/useless_shit [INFO] tweaked toml for git repo https://github.com/MrPyva/useless_shit written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/MrPyva/useless_shit already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded heapsize v0.4.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0f99784c221926b6782b06dd28d5525d63f0dcaff9bdae80a7700ec134712ccf [INFO] running `Command { std: "docker" "start" "-a" "0f99784c221926b6782b06dd28d5525d63f0dcaff9bdae80a7700ec134712ccf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0f99784c221926b6782b06dd28d5525d63f0dcaff9bdae80a7700ec134712ccf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f99784c221926b6782b06dd28d5525d63f0dcaff9bdae80a7700ec134712ccf", kill_on_drop: false }` [INFO] [stdout] 0f99784c221926b6782b06dd28d5525d63f0dcaff9bdae80a7700ec134712ccf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c77c3b487316f2cf65fdec7e32265d892894a2a905499d3827a199cc96206cf9 [INFO] running `Command { std: "docker" "start" "-a" "c77c3b487316f2cf65fdec7e32265d892894a2a905499d3827a199cc96206cf9", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling heapsize v0.4.2 [INFO] [stderr] Checking useless_shit v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `park` [INFO] [stdout] --> src/thread_pooling.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::thread::{Thread, park}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::Args` [INFO] [stdout] --> src/thread_pooling.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::env::Args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `park` [INFO] [stdout] --> src/thread_pooling.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::thread::{Thread, park}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::Args` [INFO] [stdout] --> src/thread_pooling.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::env::Args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | Err(e) => panic!("Error") [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/thread_pooling.rs:29:25 [INFO] [stdout] | [INFO] [stdout] 29 | let mut executor = &mut vec_lock[index]; [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/thread_pooling.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | let mut vec = vec.clone(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `into_bytes` [INFO] [stdout] --> src/bytes.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn into_bytes(val: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bytes` [INFO] [stdout] --> src/bytes.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn bytes(val: &T) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Executors` [INFO] [stdout] --> src/thread_pooling.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Executors { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `ExecutorThread` [INFO] [stdout] --> src/thread_pooling.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct ExecutorThread { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/thread_pooling.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn new(thread_size: u16) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `execute` [INFO] [stdout] --> src/thread_pooling.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn execute(&self, execute: F) -> Result [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `ExecuteError` [INFO] [stdout] --> src/thread_pooling.rs:66:10 [INFO] [stdout] | [INFO] [stdout] 66 | pub enum ExecuteError { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | Err(e) => panic!("Error") [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/thread_pooling.rs:29:25 [INFO] [stdout] | [INFO] [stdout] 29 | let mut executor = &mut vec_lock[index]; [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/thread_pooling.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | let mut vec = vec.clone(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `into_bytes` [INFO] [stdout] --> src/bytes.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn into_bytes(val: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bytes` [INFO] [stdout] --> src/bytes.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn bytes(val: &T) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Executors` [INFO] [stdout] --> src/thread_pooling.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Executors { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `ExecutorThread` [INFO] [stdout] --> src/thread_pooling.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct ExecutorThread { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/thread_pooling.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn new(thread_size: u16) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `execute` [INFO] [stdout] --> src/thread_pooling.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn execute(&self, execute: F) -> Result [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `ExecuteError` [INFO] [stdout] --> src/thread_pooling.rs:66:10 [INFO] [stdout] | [INFO] [stdout] 66 | pub enum ExecuteError { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/enum_dyn_alloc.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | if enumval.offset() < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/enum_dyn_alloc.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | if enumval.offset() < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.05s [INFO] running `Command { std: "docker" "inspect" "c77c3b487316f2cf65fdec7e32265d892894a2a905499d3827a199cc96206cf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c77c3b487316f2cf65fdec7e32265d892894a2a905499d3827a199cc96206cf9", kill_on_drop: false }` [INFO] [stdout] c77c3b487316f2cf65fdec7e32265d892894a2a905499d3827a199cc96206cf9