[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] testing grooviegermanikus/io_uring_monoio against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrooviegermanikus%2Fio_uring_monoio" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grooviegermanikus/io_uring_monoio on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded monoio-macros v0.1.0
[INFO] [stderr]   Downloaded anyhow v1.0.86
[INFO] [stderr]   Downloaded fxhash v0.2.1
[INFO] [stderr]   Downloaded auto-const-array v0.2.1
[INFO] [stderr]   Downloaded valuable v0.1.0
[INFO] [stderr]   Downloaded io-uring v0.6.4
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.18
[INFO] [stderr]   Downloaded monoio v0.2.3
[INFO] [stderr]   Downloaded syn v2.0.70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffda4563e62b9a9098de494c2daa4d8d67f10006dd937ad54acf7cbc18061231
[INFO] running `Command { std: "docker" "start" "-a" "ffda4563e62b9a9098de494c2daa4d8d67f10006dd937ad54acf7cbc18061231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffda4563e62b9a9098de494c2daa4d8d67f10006dd937ad54acf7cbc18061231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffda4563e62b9a9098de494c2daa4d8d67f10006dd937ad54acf7cbc18061231", kill_on_drop: false }`
[INFO] [stdout] ffda4563e62b9a9098de494c2daa4d8d67f10006dd937ad54acf7cbc18061231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b0f3c4533ace91fab5dcd1d01717095ac60a91a99bc046c9b5afd9908b54fcb
[INFO] running `Command { std: "docker" "start" "-a" "7b0f3c4533ace91fab5dcd1d01717095ac60a91a99bc046c9b5afd9908b54fcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling io-uring v0.6.4
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling syn v2.0.70
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling monoio-macros v0.1.0
[INFO] [stderr]    Compiling auto-const-array v0.2.1
[INFO] [stderr]    Compiling monoio v0.2.3
[INFO] [stderr]    Compiling io_uring_monoio v0.1.0 (/opt/rustwide/workdir)
[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)]` 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 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)]` 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)]` 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)]` 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)]` 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<T: Read> LimitReader<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(reader: T, limit: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.37s
[INFO] running `Command { std: "docker" "inspect" "7b0f3c4533ace91fab5dcd1d01717095ac60a91a99bc046c9b5afd9908b54fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b0f3c4533ace91fab5dcd1d01717095ac60a91a99bc046c9b5afd9908b54fcb", kill_on_drop: false }`
[INFO] [stdout] 7b0f3c4533ace91fab5dcd1d01717095ac60a91a99bc046c9b5afd9908b54fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9214ef0f3cf6934e73c4e113ffd209f046f57d367e8b44e7c9f268a053cc6fe8
[INFO] running `Command { std: "docker" "start" "-a" "9214ef0f3cf6934e73c4e113ffd209f046f57d367e8b44e7c9f268a053cc6fe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` 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)]` 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)]` 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)]` 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)]` 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<T: Read> LimitReader<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(reader: T, limit: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "9214ef0f3cf6934e73c4e113ffd209f046f57d367e8b44e7c9f268a053cc6fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9214ef0f3cf6934e73c4e113ffd209f046f57d367e8b44e7c9f268a053cc6fe8", kill_on_drop: false }`
[INFO] [stdout] 9214ef0f3cf6934e73c4e113ffd209f046f57d367e8b44e7c9f268a053cc6fe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98f6f02b67e107a9d2dbaddebb85206030b5aeaa51355f0ef6a7279a66f7e73f
[INFO] running `Command { std: "docker" "start" "-a" "98f6f02b67e107a9d2dbaddebb85206030b5aeaa51355f0ef6a7279a66f7e73f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `monoio::buf::IoVecBuf`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use monoio::buf::IoVecBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/limit_reader.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl<T: Read> LimitReader<T> {
[INFO] [stderr]    | ---------------------------- associated function in this implementation
[INFO] [stderr] 11 |     pub fn new(reader: T, limit: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env::args`
[INFO] [stderr]  --> src/bin/iocopy.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env::args;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]  --> src/bin/iocopy.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::future::Future;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufReader`
[INFO] [stderr]  --> src/bin/iocopy.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{BufReader, BufWriter};
[INFO] [stderr]   |               ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/bin/iocopy.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env::args`
[INFO] [stderr]  --> src/bin/allocmem.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env::args;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/bin/allocmem.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]  --> src/bin/allocmem.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::future::Future;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/bin/allocmem.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader` and `BufWriter`
[INFO] [stderr]  --> src/bin/allocmem.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{BufReader, BufWriter};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PathBuf` and `Path`
[INFO] [stderr]  --> src/bin/allocmem.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> src/bin/allocmem.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fs` and `io`
[INFO] [stderr]  --> src/bin/allocmem.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::{fs, io};
[INFO] [stderr]   |           ^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/bin/allocmem.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alloc`
[INFO] [stderr]   --> src/bin/allocmem.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let alloc = vec![0u8; n_bytes];
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Source` is never constructed
[INFO] [stderr]   --> src/bin/allocmem.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Source {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `io_uring_monoio` (bin "io_uring_monoio" test) generated 2 warnings (run `cargo fix --bin "io_uring_monoio" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `io_uring_monoio` (bin "iocopy" test) generated 4 warnings (run `cargo fix --bin "iocopy" --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `io_uring_monoio` (bin "allocmem" test) generated 11 warnings (run `cargo fix --bin "allocmem" --tests` to apply 9 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_uring_monoio-fdd9a299c39d1fef)
[INFO] [stderr]      Running unittests src/bin/allocmem.rs (/opt/rustwide/target/debug/deps/allocmem-bb1401267ed75e1e)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/io_uring_monoio-16faf6a49b07d25d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/iocopy.rs (/opt/rustwide/target/debug/deps/iocopy-dd43ac079c674036)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests io_uring_monoio
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98f6f02b67e107a9d2dbaddebb85206030b5aeaa51355f0ef6a7279a66f7e73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f6f02b67e107a9d2dbaddebb85206030b5aeaa51355f0ef6a7279a66f7e73f", kill_on_drop: false }`
[INFO] [stdout] 98f6f02b67e107a9d2dbaddebb85206030b5aeaa51355f0ef6a7279a66f7e73f