[INFO] cloning repository https://github.com/integer32llc/kafka-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/integer32llc/kafka-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finteger32llc%2Fkafka-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finteger32llc%2Fkafka-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95d34bfc8a8f4f31a262542fb1787770fa0c7961
[INFO] testing integer32llc/kafka-example against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finteger32llc%2Fkafka-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/integer32llc/kafka-example on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/integer32llc/kafka-example
[INFO] finished tweaking git repo https://github.com/integer32llc/kafka-example
[INFO] tweaked toml for git repo https://github.com/integer32llc/kafka-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/integer32llc/kafka-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rdkafka v0.26.0
[INFO] [stderr]   Downloaded rdkafka-sys v4.0.0+1.6.1
[INFO] [stderr]   Downloaded tokio v1.6.0
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[INFO] [stdout] 4ef245bef4d0a822bdb0b0588c7e5dc0f5a6c9fbd40750795fdcb4b79bd21474
[INFO] running `Command { std: "docker" "start" "-a" "4ef245bef4d0a822bdb0b0588c7e5dc0f5a6c9fbd40750795fdcb4b79bd21474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef245bef4d0a822bdb0b0588c7e5dc0f5a6c9fbd40750795fdcb4b79bd21474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef245bef4d0a822bdb0b0588c7e5dc0f5a6c9fbd40750795fdcb4b79bd21474", kill_on_drop: false }`
[INFO] [stdout] 4ef245bef4d0a822bdb0b0588c7e5dc0f5a6c9fbd40750795fdcb4b79bd21474
[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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab44a0b070944702dd72589ec8519f9ea8056fac9f4fc488a9d2d28640da0703
[INFO] running `Command { std: "docker" "start" "-a" "ab44a0b070944702dd72589ec8519f9ea8056fac9f4fc488a9d2d28640da0703", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
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[INFO] [stderr]    Compiling serde_derive v1.0.126
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[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling itoa v0.4.7
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[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling rdkafka-sys v4.0.0+1.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[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 quote v1.0.9
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling num_enum v0.5.1
[INFO] [stderr]    Compiling rdkafka v0.26.0
[INFO] [stderr]    Compiling k v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `util::Timeout`
[INFO] [stdout]  --> src/main.rs:2:212
[INFO] [stdout]   |
[INFO] [stdout] 2 | ... StreamConsumer}, producer::{FutureProducer, FutureRecord}, util::Timeout, Offset, TopicPartitionList};
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{array, convert::TryInto, time::{Duration, SystemTime, UNIX_EPOCH}, sync::{Arc, Mutex}};
[INFO] [stdout]   |                                           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sync::oneshot`, `time`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::{sync::oneshot, task::JoinHandle, time};
[INFO] [stdout]   |             ^^^^^^^^^^^^^                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     topics.set_partition_offset(TOPIC, 0, Offset::Offset(seek));
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.76s
[INFO] running `Command { std: "docker" "inspect" "ab44a0b070944702dd72589ec8519f9ea8056fac9f4fc488a9d2d28640da0703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab44a0b070944702dd72589ec8519f9ea8056fac9f4fc488a9d2d28640da0703", kill_on_drop: false }`
[INFO] [stdout] ab44a0b070944702dd72589ec8519f9ea8056fac9f4fc488a9d2d28640da0703
[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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77ec95cb008c6b21a62eec7974dfff73e4d21351cc480338cc5f9e85e173ec98
[INFO] running `Command { std: "docker" "start" "-a" "77ec95cb008c6b21a62eec7974dfff73e4d21351cc480338cc5f9e85e173ec98", kill_on_drop: false }`
[INFO] [stderr]    Compiling k v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `util::Timeout`
[INFO] [stdout]  --> src/main.rs:2:212
[INFO] [stdout]   |
[INFO] [stdout] 2 | ... StreamConsumer}, producer::{FutureProducer, FutureRecord}, util::Timeout, Offset, TopicPartitionList};
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{array, convert::TryInto, time::{Duration, SystemTime, UNIX_EPOCH}, sync::{Arc, Mutex}};
[INFO] [stdout]   |                                           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sync::oneshot`, `time`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::{sync::oneshot, task::JoinHandle, time};
[INFO] [stdout]   |             ^^^^^^^^^^^^^                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     topics.set_partition_offset(TOPIC, 0, Offset::Offset(seek));
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "77ec95cb008c6b21a62eec7974dfff73e4d21351cc480338cc5f9e85e173ec98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ec95cb008c6b21a62eec7974dfff73e4d21351cc480338cc5f9e85e173ec98", kill_on_drop: false }`
[INFO] [stdout] 77ec95cb008c6b21a62eec7974dfff73e4d21351cc480338cc5f9e85e173ec98
[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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af75d2cace0cbdeb3f926362e1bd378e70b1d7104fe77eb1ffd806c34a1f966e
[INFO] running `Command { std: "docker" "start" "-a" "af75d2cace0cbdeb3f926362e1bd378e70b1d7104fe77eb1ffd806c34a1f966e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `util::Timeout`
[INFO] [stderr]  --> src/main.rs:2:212
[INFO] [stderr]   |
[INFO] [stderr] 2 | ... StreamConsumer}, producer::{FutureProducer, FutureRecord}, util::Timeout, Offset, TopicPartitionList};
[INFO] [stderr]   |                                                                ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:3:43
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{array, convert::TryInto, time::{Duration, SystemTime, UNIX_EPOCH}, sync::{Arc, Mutex}};
[INFO] [stderr]   |                                           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `sync::oneshot`, `time`
[INFO] [stderr]  --> src/main.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tokio::{sync::oneshot, task::JoinHandle, time};
[INFO] [stderr]   |             ^^^^^^^^^^^^^                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     topics.set_partition_offset(TOPIC, 0, Offset::Offset(seek));
[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: `k` (bin "k" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/k-f177691870da394a)
[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" "af75d2cace0cbdeb3f926362e1bd378e70b1d7104fe77eb1ffd806c34a1f966e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af75d2cace0cbdeb3f926362e1bd378e70b1d7104fe77eb1ffd806c34a1f966e", kill_on_drop: false }`
[INFO] [stdout] af75d2cace0cbdeb3f926362e1bd378e70b1d7104fe77eb1ffd806c34a1f966e