[INFO] cloning repository https://github.com/grooviegermanikus/io_uring_monoio [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grooviegermanikus/io_uring_monoio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrooviegermanikus%2Fio_uring_monoio", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrooviegermanikus%2Fio_uring_monoio'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c82eaefea284be91e7c83e33d7e6f93a7ff32316 [INFO] checking grooviegermanikus/io_uring_monoio against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrooviegermanikus%2Fio_uring_monoio" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/grooviegermanikus/io_uring_monoio [INFO] finished tweaking git repo https://github.com/grooviegermanikus/io_uring_monoio [INFO] tweaked toml for git repo https://github.com/grooviegermanikus/io_uring_monoio written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/grooviegermanikus/io_uring_monoio on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/grooviegermanikus/io_uring_monoio 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a4833b9f84e798e3f455653ae82700e3aac732761f9530bf85174e7f3674d6ee [INFO] running `Command { std: "docker" "start" "-a" "a4833b9f84e798e3f455653ae82700e3aac732761f9530bf85174e7f3674d6ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4833b9f84e798e3f455653ae82700e3aac732761f9530bf85174e7f3674d6ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4833b9f84e798e3f455653ae82700e3aac732761f9530bf85174e7f3674d6ee", kill_on_drop: false }` [INFO] [stdout] a4833b9f84e798e3f455653ae82700e3aac732761f9530bf85174e7f3674d6ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e12c602c23500a49d68bf33a9a2694902f50c60b421127d09c2e862ef3102e56 [INFO] running `Command { std: "docker" "start" "-a" "e12c602c23500a49d68bf33a9a2694902f50c60b421127d09c2e862ef3102e56", kill_on_drop: false }` [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling io-uring v0.6.4 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Compiling syn v2.0.70 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking itertools v0.13.0 [INFO] [stderr] Compiling monoio-macros v0.1.0 [INFO] [stderr] Compiling auto-const-array v0.2.1 [INFO] [stderr] Checking monoio v0.2.3 [INFO] [stderr] Checking io_uring_monoio v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::env::args` [INFO] [stdout] --> src/bin/allocmem.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/bin/allocmem.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> src/bin/allocmem.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/bin/allocmem.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader` and `BufWriter` [INFO] [stdout] --> src/bin/allocmem.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PathBuf` and `Path` [INFO] [stdout] --> src/bin/allocmem.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::{Path, PathBuf}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/bin/allocmem.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs` and `io` [INFO] [stdout] --> src/bin/allocmem.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{fs, io}; [INFO] [stdout] | ^^ ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::FromStr` [INFO] [stdout] --> src/bin/allocmem.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::args` [INFO] [stdout] --> src/bin/iocopy.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> src/bin/iocopy.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/bin/iocopy.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Path` [INFO] [stdout] --> src/bin/iocopy.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::{Path, PathBuf}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `alloc` [INFO] [stdout] --> src/bin/allocmem.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let alloc = vec![0u8; n_bytes]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Source` is never constructed [INFO] [stdout] --> src/bin/allocmem.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Source { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/iocopy.rs:29:20 [INFO] [stdout] | [INFO] [stdout] 29 | let filename = PathBuf::from_str("copyout.dat").unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `io_uring_monoio` (bin "iocopy") due to 1 previous error; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `std::env::args` [INFO] [stdout] --> src/bin/allocmem.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/bin/allocmem.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> src/bin/allocmem.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/bin/allocmem.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader` and `BufWriter` [INFO] [stdout] --> src/bin/allocmem.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PathBuf` and `Path` [INFO] [stdout] --> src/bin/allocmem.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::{Path, PathBuf}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/bin/allocmem.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs` and `io` [INFO] [stdout] --> src/bin/allocmem.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{fs, io}; [INFO] [stdout] | ^^ ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::FromStr` [INFO] [stdout] --> src/bin/allocmem.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `alloc` [INFO] [stdout] --> src/bin/allocmem.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let alloc = vec![0u8; n_bytes]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Source` is never constructed [INFO] [stdout] --> src/bin/allocmem.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Source { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `monoio::buf::IoVecBuf` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use monoio::buf::IoVecBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `monoio::buf::IoVecBuf` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use monoio::buf::IoVecBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::args` [INFO] [stdout] --> src/bin/iocopy.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::args; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> src/bin/iocopy.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/bin/iocopy.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Path` [INFO] [stdout] --> src/bin/iocopy.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::{Path, PathBuf}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/iocopy.rs:29:20 [INFO] [stdout] | [INFO] [stdout] 29 | let filename = PathBuf::from_str("copyout.dat").unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `io_uring_monoio` (bin "iocopy" test) due to 1 previous error; 4 warnings emitted [INFO] [stdout] warning: struct `LimitReader` is never constructed [INFO] [stdout] --> src/limit_reader.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct LimitReader { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/limit_reader.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl LimitReader { [INFO] [stdout] | ---------------------------- associated function in this implementation [INFO] [stdout] 11 | pub fn new(reader: T, limit: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LimitReader` is never constructed [INFO] [stdout] --> src/limit_reader.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct LimitReader { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/limit_reader.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl LimitReader { [INFO] [stdout] | ---------------------------- associated function in this implementation [INFO] [stdout] 11 | pub fn new(reader: T, limit: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e12c602c23500a49d68bf33a9a2694902f50c60b421127d09c2e862ef3102e56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e12c602c23500a49d68bf33a9a2694902f50c60b421127d09c2e862ef3102e56", kill_on_drop: false }` [INFO] [stdout] e12c602c23500a49d68bf33a9a2694902f50c60b421127d09c2e862ef3102e56