[INFO] cloning repository https://github.com/pschafhalter/tokio-benchmarking
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pschafhalter/tokio-benchmarking" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpschafhalter%2Ftokio-benchmarking", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpschafhalter%2Ftokio-benchmarking'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e6b18056713ce1b7d03c5b3fee740d0b5c7eff8
[INFO] testing pschafhalter/tokio-benchmarking against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpschafhalter%2Ftokio-benchmarking" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pschafhalter/tokio-benchmarking on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pschafhalter/tokio-benchmarking
[INFO] finished tweaking git repo https://github.com/pschafhalter/tokio-benchmarking
[INFO] tweaked toml for git repo https://github.com/pschafhalter/tokio-benchmarking written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/pschafhalter/tokio-benchmarking already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c68f3288abc9d31f047771b5ec377424c5f9c3c2770d282d658212e77f6067ff
[INFO] running `Command { std: "docker" "start" "-a" "c68f3288abc9d31f047771b5ec377424c5f9c3c2770d282d658212e77f6067ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c68f3288abc9d31f047771b5ec377424c5f9c3c2770d282d658212e77f6067ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68f3288abc9d31f047771b5ec377424c5f9c3c2770d282d658212e77f6067ff", kill_on_drop: false }`
[INFO] [stdout] c68f3288abc9d31f047771b5ec377424c5f9c3c2770d282d658212e77f6067ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a33b2cefa22559e2ce8f5653f90cc621622079f2955a160cad0649dad6fdb4a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a33b2cefa22559e2ce8f5653f90cc621622079f2955a160cad0649dad6fdb4a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling tokio-benchmarking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `futures::future::select_all`
[INFO] [stdout]  --> src/bin/message_passing.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::future::select_all;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_consumers`
[INFO] [stdout]    --> src/bin/message_passing.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     max_consumers: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_consumers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simple_consumer`
[INFO] [stdout]    --> src/bin/message_passing.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn simple_consumer(event: Event, stats_tx: UnboundedSender<Duration>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consumer_manager`
[INFO] [stdout]    --> src/bin/message_passing.rs:115:10
[INFO] [stdout]     |
[INFO] [stdout] 115 | async fn consumer_manager(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sleep_duration_2`
[INFO] [stdout]   --> src/bin/semaphores.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let sleep_duration_2 = sleep_duration.clone();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleep_duration_2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `create_time`
[INFO] [stdout]   --> src/bin/semaphores.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     create_time: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.25s
[INFO] running `Command { std: "docker" "inspect" "a33b2cefa22559e2ce8f5653f90cc621622079f2955a160cad0649dad6fdb4a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a33b2cefa22559e2ce8f5653f90cc621622079f2955a160cad0649dad6fdb4a8", kill_on_drop: false }`
[INFO] [stdout] a33b2cefa22559e2ce8f5653f90cc621622079f2955a160cad0649dad6fdb4a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f09fd815c51be481ed9d272e94d5ca2b4f94b8dad84b059d40c939d293fdba5a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f09fd815c51be481ed9d272e94d5ca2b4f94b8dad84b059d40c939d293fdba5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-benchmarking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `futures::future::select_all`
[INFO] [stdout]  --> src/bin/message_passing.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::future::select_all;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_consumers`
[INFO] [stdout]    --> src/bin/message_passing.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     max_consumers: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_consumers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simple_consumer`
[INFO] [stdout]    --> src/bin/message_passing.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn simple_consumer(event: Event, stats_tx: UnboundedSender<Duration>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consumer_manager`
[INFO] [stdout]    --> src/bin/message_passing.rs:115:10
[INFO] [stdout]     |
[INFO] [stdout] 115 | async fn consumer_manager(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sleep_duration_2`
[INFO] [stdout]   --> src/bin/semaphores.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let sleep_duration_2 = sleep_duration.clone();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleep_duration_2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `create_time`
[INFO] [stdout]   --> src/bin/semaphores.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     create_time: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.95s
[INFO] [stderr]   Executable unittests src/bin/message_passing.rs (/opt/rustwide/target/debug/deps/message_passing-9d2f276d481b1753)
[INFO] [stderr]   Executable unittests src/bin/semaphores.rs (/opt/rustwide/target/debug/deps/semaphores-26e461ad8e996bb1)
[INFO] running `Command { std: "docker" "inspect" "f09fd815c51be481ed9d272e94d5ca2b4f94b8dad84b059d40c939d293fdba5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09fd815c51be481ed9d272e94d5ca2b4f94b8dad84b059d40c939d293fdba5a", kill_on_drop: false }`
[INFO] [stdout] f09fd815c51be481ed9d272e94d5ca2b4f94b8dad84b059d40c939d293fdba5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb29bdad5dce4de94dddeca98f17886831306f34972ff982dd2a21a974497b36
[INFO] running `Command { std: "docker" "start" "-a" "fb29bdad5dce4de94dddeca98f17886831306f34972ff982dd2a21a974497b36", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `futures::future::select_all`
[INFO] [stderr]  --> src/bin/message_passing.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::future::select_all;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_consumers`
[INFO] [stderr]    --> src/bin/message_passing.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     max_consumers: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_consumers`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_consumer`
[INFO] [stderr]    --> src/bin/message_passing.rs:110:4
[INFO] [stderr]     |
[INFO] [stderr] 110 | fn simple_consumer(event: Event, stats_tx: UnboundedSender<Duration>) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consumer_manager`
[INFO] [stderr]    --> src/bin/message_passing.rs:115:10
[INFO] [stderr]     |
[INFO] [stderr] 115 | async fn consumer_manager(
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleep_duration_2`
[INFO] [stderr]   --> src/bin/semaphores.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let sleep_duration_2 = sleep_duration.clone();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleep_duration_2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `create_time`
[INFO] [stderr]   --> src/bin/semaphores.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     create_time: Instant,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-benchmarking` (bin "message_passing" test) generated 4 warnings
[INFO] [stderr] warning: `tokio-benchmarking` (bin "semaphores" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/bin/message_passing.rs (/opt/rustwide/target/debug/deps/message_passing-9d2f276d481b1753)
[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/semaphores.rs (/opt/rustwide/target/debug/deps/semaphores-26e461ad8e996bb1)
[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" "fb29bdad5dce4de94dddeca98f17886831306f34972ff982dd2a21a974497b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb29bdad5dce4de94dddeca98f17886831306f34972ff982dd2a21a974497b36", kill_on_drop: false }`
[INFO] [stdout] fb29bdad5dce4de94dddeca98f17886831306f34972ff982dd2a21a974497b36