[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/beta-1.38-1/sources/1.37.0/gh/aleozlx/benchmark-containers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/benchmark-containers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/benchmark-containers" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/benchmark-containers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aleozlx/benchmark-containers on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/benchmark-containers/Cargo.toml
[INFO] crate aleozlx/benchmark-containers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aleozlx/benchmark-containers against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/benchmark-containers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4caae10bd584533c7d7421fe156e1ada1279be7032232f9b9853fb249aa829aa
[INFO] running `"docker" "start" "-a" "4caae10bd584533c7d7421fe156e1ada1279be7032232f9b9853fb249aa829aa"`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling sysinfo v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling 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: `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]     Finished dev [unoptimized + debuginfo] target(s) in 40.20s
[INFO] running `"docker" "inspect" "4caae10bd584533c7d7421fe156e1ada1279be7032232f9b9853fb249aa829aa"`
[INFO] running `"docker" "rm" "-f" "4caae10bd584533c7d7421fe156e1ada1279be7032232f9b9853fb249aa829aa"`
[INFO] [stdout] 4caae10bd584533c7d7421fe156e1ada1279be7032232f9b9853fb249aa829aa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/benchmark-containers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f2518b3dcdd658c010704af40a1b4c1f5953a884e061e17407bd585ab8e789c4
[INFO] running `"docker" "start" "-a" "f2518b3dcdd658c010704af40a1b4c1f5953a884e061e17407bd585ab8e789c4"`
[INFO] [stderr]    Compiling 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: `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]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "f2518b3dcdd658c010704af40a1b4c1f5953a884e061e17407bd585ab8e789c4"`
[INFO] running `"docker" "rm" "-f" "f2518b3dcdd658c010704af40a1b4c1f5953a884e061e17407bd585ab8e789c4"`
[INFO] [stdout] f2518b3dcdd658c010704af40a1b4c1f5953a884e061e17407bd585ab8e789c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/benchmark-containers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b7c0706d2b59093ea21f63deb719658f1d2ec4569fa09aab252a4acd130335cd
[INFO] running `"docker" "start" "-a" "b7c0706d2b59093ea21f63deb719658f1d2ec4569fa09aab252a4acd130335cd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/benchmark_containers-c1b750cc599a8a6b
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b7c0706d2b59093ea21f63deb719658f1d2ec4569fa09aab252a4acd130335cd"`
[INFO] running `"docker" "rm" "-f" "b7c0706d2b59093ea21f63deb719658f1d2ec4569fa09aab252a4acd130335cd"`
[INFO] [stdout] b7c0706d2b59093ea21f63deb719658f1d2ec4569fa09aab252a4acd130335cd