[INFO] updating cached repository aleozlx/benchmark-containers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aleozlx/benchmark-containers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/benchmark-containers" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/aleozlx/benchmark-containers"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/aleozlx/benchmark-containers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/benchmark-containers" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/aleozlx/benchmark-containers"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/aleozlx/benchmark-containers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23e4fa014b30b3242f65f6388eb292115b314176
[INFO] sha for GitHub repo aleozlx/benchmark-containers: 23e4fa014b30b3242f65f6388eb292115b314176
[INFO] validating manifest of aleozlx/benchmark-containers on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aleozlx/benchmark-containers on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aleozlx/benchmark-containers
[INFO] finished frobbing aleozlx/benchmark-containers
[INFO] frobbed toml for aleozlx/benchmark-containers written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/aleozlx/benchmark-containers/Cargo.toml
[INFO] started frobbing aleozlx/benchmark-containers
[INFO] finished frobbing aleozlx/benchmark-containers
[INFO] frobbed toml for aleozlx/benchmark-containers written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/aleozlx/benchmark-containers/Cargo.toml
[INFO] crate aleozlx/benchmark-containers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking aleozlx/benchmark-containers against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-5/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/aleozlx/benchmark-containers:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f7e4b3d83eed9032149221a512d89d07cf69c94c657fa339229fa53356fc95c3
[INFO] running `"docker" "start" "-a" "f7e4b3d83eed9032149221a512d89d07cf69c94c657fa339229fa53356fc95c3"`
[INFO] [stderr]    Compiling sysinfo v0.8.2
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking benchmark-containers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `nix::Error`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nix::Error;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::unistd::ForkResult::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use nix::unistd::ForkResult::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::sys::signal::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use nix::sys::signal::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::sys::wait::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use nix::sys::wait::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::_exit`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use libc::_exit;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Seek`
[INFO] [stderr]   --> src/main.rs:13:28
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::io::{Read, Write, Seek};
[INFO] [stderr]    |                            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::Error`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nix::Error;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::unistd::ForkResult::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use nix::unistd::ForkResult::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::sys::signal::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use nix::sys::signal::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::sys::wait::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use nix::sys::wait::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::_exit`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use libc::_exit;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Seek`
[INFO] [stderr]   --> src/main.rs:13:28
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::io::{Read, Write, Seek};
[INFO] [stderr]    |                            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ProcessExt`
[INFO] [stderr]   --> src/main.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | use sysinfo::{ProcessExt, SystemExt};
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ProcessExt`
[INFO] [stderr]   --> src/main.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | use sysinfo::{ProcessExt, SystemExt};
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `threadbomb`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn threadbomb() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blk`
[INFO] [stderr]   --> src/main.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn blk() {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `threadbomb`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn threadbomb() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blk`
[INFO] [stderr]   --> src/main.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn blk() {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.68s
[INFO] running `"docker" "inspect" "f7e4b3d83eed9032149221a512d89d07cf69c94c657fa339229fa53356fc95c3"`
[INFO] running `"docker" "rm" "-f" "f7e4b3d83eed9032149221a512d89d07cf69c94c657fa339229fa53356fc95c3"`
[INFO] [stdout] f7e4b3d83eed9032149221a512d89d07cf69c94c657fa339229fa53356fc95c3