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[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foceanbase%2Fobkv-table-client-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/oceanbase/obkv-table-client-rs already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: the item `AtomicIsize` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:977:22
[INFO] [stdout]     |
[INFO] [stdout] 977 |             atomic::{AtomicIsize, AtomicUsize},
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `AtomicIsize` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AtomicUsize` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:977:35
[INFO] [stdout]     |
[INFO] [stdout] 977 |             atomic::{AtomicIsize, AtomicUsize},
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `AtomicUsize` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:978:13
[INFO] [stdout]     |
[INFO] [stdout] 978 |             Arc,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:980:9
[INFO] [stdout]     |
[INFO] [stdout] 980 |         time::Duration,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `Duration` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]     --> src/rpc/protocol/payloads.rs:1766:9
[INFO] [stdout]      |
[INFO] [stdout] 1766 |     use bytes::BytesMut;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 1767 |
[INFO] [stdout] 1768 |     use super::{super::OP_TIMEOUT, *};
[INFO] [stdout]      |                                    - the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]   --> src/rpc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ops::Drop,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Drop` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]    --> src/rpc/mod.rs:982:25
[INFO] [stdout]     |
[INFO] [stdout] 982 |     use bytes::{BufMut, BytesMut};
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 983 |
[INFO] [stdout] 984 |     use super::*;
[INFO] [stdout]     |         -------- the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/runtime/mod.rs:187:15
[INFO] [stdout]     |
[INFO] [stdout] 187 |     use std::{sync::Arc, thread, time::Duration};
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]    --> src/serde_obkv/de.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |     use bytes::BytesMut;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |         *,
[INFO] [stdout]     |         - the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]   --> src/rpc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ops::Drop,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Drop` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking obkv-ycsb v0.1.0 (/opt/rustwide/workdir/ycsb-rs)
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> ycsb-rs/src/generator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> ycsb-rs/src/generator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.01s
[INFO] running `Command { std: "docker" "inspect" "ef4925a1b3bafcac093e2394f4944f105d65f99189ff8a826fc9b5432a8001ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4925a1b3bafcac093e2394f4944f105d65f99189ff8a826fc9b5432a8001ec", kill_on_drop: false }`
[INFO] [stdout] ef4925a1b3bafcac093e2394f4944f105d65f99189ff8a826fc9b5432a8001ec
[INFO] checking oceanbase/obkv-table-client-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foceanbase%2Fobkv-table-client-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oceanbase/obkv-table-client-rs on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/oceanbase/obkv-table-client-rs
[INFO] finished tweaking git repo https://github.com/oceanbase/obkv-table-client-rs
[INFO] tweaked toml for git repo https://github.com/oceanbase/obkv-table-client-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/oceanbase/obkv-table-client-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de98eebc3c2ec8a082223374589f7a6535b73b4a7441fde9b6d23de8938b3497
[INFO] running `Command { std: "docker" "start" "-a" "de98eebc3c2ec8a082223374589f7a6535b73b4a7441fde9b6d23de8938b3497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de98eebc3c2ec8a082223374589f7a6535b73b4a7441fde9b6d23de8938b3497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de98eebc3c2ec8a082223374589f7a6535b73b4a7441fde9b6d23de8938b3497", kill_on_drop: false }`
[INFO] [stdout] de98eebc3c2ec8a082223374589f7a6535b73b4a7441fde9b6d23de8938b3497
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5412e89af8e26c31a5466e42c044c7b74d5b98e37f124854b0fe7f2c2d43bad
[INFO] running `Command { std: "docker" "start" "-a" "f5412e89af8e26c31a5466e42c044c7b74d5b98e37f124854b0fe7f2c2d43bad", kill_on_drop: false }`
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[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]   --> src/rpc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ops::Drop,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Drop` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AtomicIsize` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:977:22
[INFO] [stdout]     |
[INFO] [stdout] 977 |             atomic::{AtomicIsize, AtomicUsize},
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `AtomicIsize` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AtomicUsize` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:977:35
[INFO] [stdout]     |
[INFO] [stdout] 977 |             atomic::{AtomicIsize, AtomicUsize},
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `AtomicUsize` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:978:13
[INFO] [stdout]     |
[INFO] [stdout] 978 |             Arc,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/location/mod.rs:980:9
[INFO] [stdout]     |
[INFO] [stdout] 980 |         time::Duration,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 983 |     use super::*;
[INFO] [stdout]     |         -------- the item `Duration` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]     --> src/rpc/protocol/payloads.rs:1766:9
[INFO] [stdout]      |
[INFO] [stdout] 1766 |     use bytes::BytesMut;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 1767 |
[INFO] [stdout] 1768 |     use super::{super::OP_TIMEOUT, *};
[INFO] [stdout]      |                                    - the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]   --> src/rpc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ops::Drop,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Drop` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]    --> src/rpc/mod.rs:982:25
[INFO] [stdout]     |
[INFO] [stdout] 982 |     use bytes::{BufMut, BytesMut};
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 983 |
[INFO] [stdout] 984 |     use super::*;
[INFO] [stdout]     |         -------- the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/runtime/mod.rs:187:15
[INFO] [stdout]     |
[INFO] [stdout] 187 |     use std::{sync::Arc, thread, time::Duration};
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]    --> src/serde_obkv/de.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |     use bytes::BytesMut;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |         *,
[INFO] [stdout]     |         - the item `BytesMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking obkv-ycsb v0.1.0 (/opt/rustwide/workdir/ycsb-rs)
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> ycsb-rs/src/generator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> ycsb-rs/src/generator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.58s
[INFO] running `Command { std: "docker" "inspect" "f5412e89af8e26c31a5466e42c044c7b74d5b98e37f124854b0fe7f2c2d43bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5412e89af8e26c31a5466e42c044c7b74d5b98e37f124854b0fe7f2c2d43bad", kill_on_drop: false }`
[INFO] [stdout] f5412e89af8e26c31a5466e42c044c7b74d5b98e37f124854b0fe7f2c2d43bad