[INFO] fetching crate zkstate 0.1.23...
[INFO] testing zkstate-0.1.23 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate zkstate 0.1.23 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate zkstate 0.1.23 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zkstate 0.1.23
[INFO] finished tweaking crates.io crate zkstate 0.1.23
[INFO] tweaked toml for crates.io crate zkstate 0.1.23 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate zkstate 0.1.23 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded treediff v4.0.0
[INFO] [stderr]   Downloaded zookeeper v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13de108a206d1a74f5da32299c0ba7e29ab31667ee8d5df6d81c42fc511567c2
[INFO] running `Command { std: "docker" "start" "-a" "13de108a206d1a74f5da32299c0ba7e29ab31667ee8d5df6d81c42fc511567c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13de108a206d1a74f5da32299c0ba7e29ab31667ee8d5df6d81c42fc511567c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13de108a206d1a74f5da32299c0ba7e29ab31667ee8d5df6d81c42fc511567c2", kill_on_drop: false }`
[INFO] [stdout] 13de108a206d1a74f5da32299c0ba7e29ab31667ee8d5df6d81c42fc511567c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da1b61cd2031fb0c67c056110d123594568b0bf11f85fbb7eb2a5036fbdfde65
[INFO] running `Command { std: "docker" "start" "-a" "da1b61cd2031fb0c67c056110d123594568b0bf11f85fbb7eb2a5036fbdfde65", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling zookeeper_derive v0.4.1
[INFO] [stderr]    Compiling zookeeper v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling treediff v4.0.0
[INFO] [stderr]    Compiling zkstate v0.1.23 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.26s
[INFO] running `Command { std: "docker" "inspect" "da1b61cd2031fb0c67c056110d123594568b0bf11f85fbb7eb2a5036fbdfde65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1b61cd2031fb0c67c056110d123594568b0bf11f85fbb7eb2a5036fbdfde65", kill_on_drop: false }`
[INFO] [stdout] da1b61cd2031fb0c67c056110d123594568b0bf11f85fbb7eb2a5036fbdfde65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fc43b2ed4ec5fb5de4b2e949dde43f606ae4cf660b365a14c6afb023ca7e838
[INFO] running `Command { std: "docker" "start" "-a" "2fc43b2ed4ec5fb5de4b2e949dde43f606ae4cf660b365a14c6afb023ca7e838", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling zkstate v0.1.23 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `update`
[INFO] [stdout]   --> examples/test.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn update<T: FnOnce(&mut Testing)>(i: Testing, c: T) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/test.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     c.update_handler(|msg| {
[INFO] [stdout] 48 | |         println!("got stage change message: {:?}", msg);
[INFO] [stdout] 49 | |     });
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/test.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     c.update(|mut p| {
[INFO] [stdout] 63 | |        p.my_field = "hello world again".to_string()
[INFO] [stdout] 64 | |     });
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "2fc43b2ed4ec5fb5de4b2e949dde43f606ae4cf660b365a14c6afb023ca7e838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc43b2ed4ec5fb5de4b2e949dde43f606ae4cf660b365a14c6afb023ca7e838", kill_on_drop: false }`
[INFO] [stdout] 2fc43b2ed4ec5fb5de4b2e949dde43f606ae4cf660b365a14c6afb023ca7e838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4c7d2a6e4866f7b331d635fad98d63d5f8e3282455a1325730d0264af87b3ab9
[INFO] running `Command { std: "docker" "start" "-a" "4c7d2a6e4866f7b331d635fad98d63d5f8e3282455a1325730d0264af87b3ab9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `update`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> examples/test.rs:27:4
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 27 | fn update<T: FnOnce(&mut Testing)>(i: Testing, c: T) {
[INFO] [stdout] 
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/test.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | /     c.update_handler(|msg| {
[INFO] [stderr] 48 | |         println!("got stage change message: {:?}", msg);
[INFO] [stderr] 49 | |     });
[INFO] [stderr]    | |_______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/test.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | /     c.update(|mut p| {
[INFO] [stderr] 63 | |        p.my_field = "hello world again".to_string()
[INFO] [stderr] 64 | |     });
[INFO] [stderr]    | |_______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `zkstate` (example "test") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zkstate-459b6d059af43be0)
[INFO] [stderr]    Doc-tests zkstate
[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" "4c7d2a6e4866f7b331d635fad98d63d5f8e3282455a1325730d0264af87b3ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7d2a6e4866f7b331d635fad98d63d5f8e3282455a1325730d0264af87b3ab9", kill_on_drop: false }`
[INFO] [stdout] 4c7d2a6e4866f7b331d635fad98d63d5f8e3282455a1325730d0264af87b3ab9