[INFO] cloning repository https://github.com/prajithkb/perf_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prajithkb/perf_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fperf_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fperf_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5c3e12db8dce0c4382c80ee998e174f3f799bd7
[INFO] testing prajithkb/perf_test against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fperf_test" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prajithkb/perf_test on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-32/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/prajithkb/perf_test
[INFO] finished tweaking git repo https://github.com/prajithkb/perf_test
[INFO] tweaked toml for git repo https://github.com/prajithkb/perf_test written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/prajithkb/perf_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded js-sys v0.3.50
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded web-sys v0.3.50
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.3
[INFO] [stderr]   Downloaded cast v0.2.5
[INFO] [stderr]   Downloaded futures-io v0.3.14
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded futures-task v0.3.14
[INFO] [stderr]   Downloaded plotters v0.3.0
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[INFO] [stderr]   Downloaded futures-util v0.3.14
[INFO] [stderr]   Downloaded futures-core v0.3.14
[INFO] [stderr]   Downloaded futures-sink v0.3.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fec3d879b4d3be7fa8381b13aa6d3c4e0e9907f12da6fbef270f1c7197aa4be8
[INFO] running `Command { std: "docker" "start" "-a" "fec3d879b4d3be7fa8381b13aa6d3c4e0e9907f12da6fbef270f1c7197aa4be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fec3d879b4d3be7fa8381b13aa6d3c4e0e9907f12da6fbef270f1c7197aa4be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec3d879b4d3be7fa8381b13aa6d3c4e0e9907f12da6fbef270f1c7197aa4be8", kill_on_drop: false }`
[INFO] [stdout] fec3d879b4d3be7fa8381b13aa6d3c4e0e9907f12da6fbef270f1c7197aa4be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6e5988d7e294451f8e90e9c8204c0505fecdae092d4d75091f484d8b9f08e1b
[INFO] running `Command { std: "docker" "start" "-a" "f6e5988d7e294451f8e90e9c8204c0505fecdae092d4d75091f484d8b9f08e1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling futures-sink v0.3.14
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling futures-io v0.3.14
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling futures-channel v0.3.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.14
[INFO] [stderr]    Compiling futures v0.3.14
[INFO] [stderr]    Compiling perf_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tps`
[INFO] [stdout]  --> src/load_test_thread.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                        ^^^ help: if this is intentional, prefix it with an underscore: `_tps`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threads`
[INFO] [stdout]  --> src/load_test_thread.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `Command { std: "docker" "inspect" "f6e5988d7e294451f8e90e9c8204c0505fecdae092d4d75091f484d8b9f08e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e5988d7e294451f8e90e9c8204c0505fecdae092d4d75091f484d8b9f08e1b", kill_on_drop: false }`
[INFO] [stdout] f6e5988d7e294451f8e90e9c8204c0505fecdae092d4d75091f484d8b9f08e1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d758c76c83ba5e3bb9c8825667aabc38863484eed9fe9b4739ea3ab1db0c70e
[INFO] running `Command { std: "docker" "start" "-a" "7d758c76c83ba5e3bb9c8825667aabc38863484eed9fe9b4739ea3ab1db0c70e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stdout] warning: unused variable: `tps`
[INFO] [stdout]  --> src/load_test_thread.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                        ^^^ help: if this is intentional, prefix it with an underscore: `_tps`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threads`
[INFO] [stdout]  --> src/load_test_thread.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling plotters v0.3.0
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling perf_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tps`
[INFO] [stdout]  --> src/load_test_thread.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                        ^^^ help: if this is intentional, prefix it with an underscore: `_tps`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threads`
[INFO] [stdout]  --> src/load_test_thread.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stdout]   |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.29s
[INFO] running `Command { std: "docker" "inspect" "7d758c76c83ba5e3bb9c8825667aabc38863484eed9fe9b4739ea3ab1db0c70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d758c76c83ba5e3bb9c8825667aabc38863484eed9fe9b4739ea3ab1db0c70e", kill_on_drop: false }`
[INFO] [stdout] 7d758c76c83ba5e3bb9c8825667aabc38863484eed9fe9b4739ea3ab1db0c70e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3e32ed5c92d3b0dc65c9df3c5b4c8f0c2c81e83fee05940e66ef8b2abbd2c467
[INFO] running `Command { std: "docker" "start" "-a" "3e32ed5c92d3b0dc65c9df3c5b4c8f0c2c81e83fee05940e66ef8b2abbd2c467", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `tps`
[INFO] [stderr]  --> src/load_test_thread.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stderr]   |                        ^^^ help: if this is intentional, prefix it with an underscore: `_tps`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `threads`
[INFO] [stderr]  --> src/load_test_thread.rs:1:36
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub async fn load_test(tps: usize, threads: usize) {}
[INFO] [stderr]   |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stderr] 
[INFO] [stderr] warning: `perf_test` (lib) generated 2 warnings
[INFO] [stderr] warning: `perf_test` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/perf_test-2ba46fced84adc2a)
[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 (/opt/rustwide/target/debug/deps/async_perf-16a6c0a006620f4f)
[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 (/opt/rustwide/target/debug/deps/thread_perf-afbc128a2ecf4781)
[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]    Doc-tests perf_test
[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" "3e32ed5c92d3b0dc65c9df3c5b4c8f0c2c81e83fee05940e66ef8b2abbd2c467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e32ed5c92d3b0dc65c9df3c5b4c8f0c2c81e83fee05940e66ef8b2abbd2c467", kill_on_drop: false }`
[INFO] [stdout] 3e32ed5c92d3b0dc65c9df3c5b4c8f0c2c81e83fee05940e66ef8b2abbd2c467