[INFO] cloning repository https://github.com/ScottLinnn/mylsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ScottLinnn/mylsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottLinnn%2Fmylsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottLinnn%2Fmylsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f0a04dd4a0c12ebd528f3f53cc5bc148e8d03d5
[INFO] testing ScottLinnn/mylsm against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottLinnn%2Fmylsm" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ScottLinnn/mylsm
[INFO] finished tweaking git repo https://github.com/ScottLinnn/mylsm
[INFO] tweaked toml for git repo https://github.com/ScottLinnn/mylsm written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ScottLinnn/mylsm on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ScottLinnn/mylsm 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ouroboros_macro v0.15.6
[INFO] [stderr]   Downloaded ouroboros v0.15.6
[INFO] [stderr]   Downloaded bytecount v0.6.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.75
[INFO] [stderr]   Downloaded crossbeam-skiplist v0.1.2
[INFO] [stderr]   Downloaded quanta v0.11.1
[INFO] [stderr]   Downloaded serde v1.0.194
[INFO] [stderr]   Downloaded serde_json v1.0.111
[INFO] [stderr]   Downloaded pulldown-cmark v0.9.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.17
[INFO] [stderr]   Downloaded serde_derive v1.0.194
[INFO] [stderr]   Downloaded uuid v1.6.1
[INFO] [stderr]   Downloaded moka v0.9.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fca72ef3d732fbf723af4da3bf331c49d74301aca089a6800beb592cf6230b1a
[INFO] running `Command { std: "docker" "start" "-a" "fca72ef3d732fbf723af4da3bf331c49d74301aca089a6800beb592cf6230b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fca72ef3d732fbf723af4da3bf331c49d74301aca089a6800beb592cf6230b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca72ef3d732fbf723af4da3bf331c49d74301aca089a6800beb592cf6230b1a", kill_on_drop: false }`
[INFO] [stdout] fca72ef3d732fbf723af4da3bf331c49d74301aca089a6800beb592cf6230b1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 038b84c36cbd9e71b5e1ddfbf66dcbd5631434cf73df41fb3c3def613f801203
[INFO] running `Command { std: "docker" "start" "-a" "038b84c36cbd9e71b5e1ddfbf66dcbd5631434cf73df41fb3c3def613f801203", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling moka v0.9.9
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling tagptr v0.2.0
[INFO] [stderr]    Compiling triomphe v0.1.11
[INFO] [stderr]    Compiling aliasable v0.1.3
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling arc-swap v1.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling uuid v1.6.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam-skiplist v0.1.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling quanta v0.11.1
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ouroboros_macro v0.15.6
[INFO] [stderr]    Compiling ouroboros v0.15.6
[INFO] [stderr]    Compiling mini-lsm-starter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f32::consts::E`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::f32::consts::E;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Bytes`
[INFO] [stdout]  --> src/table/iterator.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{io::Bytes, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/table/iterator.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_offset` is never read
[INFO] [stdout]    --> src/table.rs:152:35
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let mut end_offset: u64 = 0u64;
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.50s
[INFO] running `Command { std: "docker" "inspect" "038b84c36cbd9e71b5e1ddfbf66dcbd5631434cf73df41fb3c3def613f801203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038b84c36cbd9e71b5e1ddfbf66dcbd5631434cf73df41fb3c3def613f801203", kill_on_drop: false }`
[INFO] [stdout] 038b84c36cbd9e71b5e1ddfbf66dcbd5631434cf73df41fb3c3def613f801203
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b4ab9c35ba3b0f8f7c504d8db9b8f56655e537ff3742bc41321554e2134faff
[INFO] running `Command { std: "docker" "start" "-a" "5b4ab9c35ba3b0f8f7c504d8db9b8f56655e537ff3742bc41321554e2134faff", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stdout] warning: unused import: `std::f32::consts::E`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::f32::consts::E;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Bytes`
[INFO] [stdout]  --> src/table/iterator.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{io::Bytes, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/table/iterator.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_offset` is never read
[INFO] [stdout]    --> src/table.rs:152:35
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let mut end_offset: u64 = 0u64;
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling mini-lsm-starter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f32::consts::E`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::f32::consts::E;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> src/iterators/two_merge_iterator.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Bytes`
[INFO] [stdout]  --> src/table/iterator.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{io::Bytes, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/table/iterator.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_offset` is never read
[INFO] [stdout]    --> src/table.rs:152:35
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let mut end_offset: u64 = 0u64;
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `Command { std: "docker" "inspect" "5b4ab9c35ba3b0f8f7c504d8db9b8f56655e537ff3742bc41321554e2134faff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4ab9c35ba3b0f8f7c504d8db9b8f56655e537ff3742bc41321554e2134faff", kill_on_drop: false }`
[INFO] [stdout] 5b4ab9c35ba3b0f8f7c504d8db9b8f56655e537ff3742bc41321554e2134faff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] abea21d8763309f191948f86e64758d4c78438c9f832aadd50b3ee5ccd48b737
[INFO] running `Command { std: "docker" "start" "-a" "abea21d8763309f191948f86e64758d4c78438c9f832aadd50b3ee5ccd48b737", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test block::tests::test_block_build_all ... ok
[INFO] [stdout] test block::tests::test_block_build_full ... ok
[INFO] [stdout] test block::tests::test_block_build_single_key ... ok
[INFO] [stdout] test block::tests::test_block_decode ... ok
[INFO] [stdout] test block::tests::test_block_encode ... ok
[INFO] [stdout] test block::tests::test_block_iterator ... ok
[INFO] [stdout] test iterators::tests::merge_iterator_test::test_merge_1 ... ok
[INFO] [stdout] test iterators::tests::merge_iterator_test::test_merge_2 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_1 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_2 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_3 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_4 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_5 ... ok
[INFO] [stdout] test mem_table::tests::test_memtable_get ... ok
[INFO] [stdout] test mem_table::tests::test_memtable_iter ... ok
[INFO] [stdout] test mem_table::tests::test_memtable_overwrite ... ok
[INFO] [stdout] test mem_table::tests::test_memtable_flush ... ok
[INFO] [stderr] warning: unused import: `std::f32::consts::E`
[INFO] [stdout] test table::tests::test_sst_iterator ... ok
[INFO] [stderr]  --> src/iterators/two_merge_iterator.rs:4:5
[INFO] [stdout] test table::tests::test_sst_build_all ... ok
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::f32::consts::E;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test table::tests::test_sst_build_single_key ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bytes::Bytes`
[INFO] [stderr]  --> src/iterators/two_merge_iterator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use bytes::Bytes;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::Bytes`
[INFO] [stderr]  --> src/table/iterator.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{io::Bytes, sync::Arc};
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/table/iterator.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use anyhow::{Error, Ok, Result};
[INFO] [stderr]   |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `end_offset` is never read
[INFO] [stderr]    --> src/table.rs:152:35
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let mut end_offset: u64 = 0u64;
[INFO] [stderr]     |                                   ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mini-lsm-starter` (lib) generated 5 warnings (run `cargo fix --lib -p mini-lsm-starter` to apply 4 suggestions)
[INFO] [stderr] warning: `mini-lsm-starter` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mini_lsm_starter-46b26b3e0c263244)
[INFO] [stdout] test table::tests::test_sst_build_two_blocks ... ok
[INFO] [stdout] test table::tests::test_sst_seek_key ... ok
[INFO] [stdout] test table::tests::test_sst_decode ... ok
[INFO] [stdout] test block::tests::test_block_seek_key ... ok
[INFO] [stdout] test iterators::tests::merge_iterator_test::test_merge_empty ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- iterators::tests::merge_iterator_test::test_merge_empty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'iterators::tests::merge_iterator_test::test_merge_empty' (26) panicked at src/iterators/merge_iterator.rs:63:13:
[INFO] [stdout] fail to create
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a2dc1847182 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a2dc1847182 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a2dc1847182 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x5a2dc1847182 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x5a2dc18573c7 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a2dc18573c7 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x5a2dc18144a6 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a2dc18144a6 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5a2dc1825a89 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x5a2dc1825a89 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a2dc1825921 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a2dc17b8f0e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5a2dc17b8f0e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a2dc1825d02 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5a2dc1825d02 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5a2dc1825b7a - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5a2dc1820939 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x5a2dc1808d3d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5a2dc185e9ac - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a2dc1772f1d - mini_lsm_starter::iterators::merge_iterator::MergeIterator<I>::create::h6af259e54bce775e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/iterators/merge_iterator.rs:63:13
[INFO] [stdout]   20:     0x5a2dc175ab8d - mini_lsm_starter::iterators::tests::merge_iterator_test::test_merge_empty::hafa18a037bbb16f4
[INFO] [stdout]                                at /opt/rustwide/workdir/src/iterators/tests/merge_iterator_test.rs:135:16
[INFO] [stdout]   21:     0x5a2dc175ac47 - mini_lsm_starter::iterators::tests::merge_iterator_test::test_merge_empty::{{closure}}::h2583d00e0162e125
[INFO] [stdout]                                at /opt/rustwide/workdir/src/iterators/tests/merge_iterator_test.rs:134:22
[INFO] [stdout]   22:     0x5a2dc177f636 - core::ops::function::FnOnce::call_once::hd96dfecc8aa298bc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5a2dc17b8d3b - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a2dc17b8d3b - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x5a2dc17cc6ca - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x5a2dc17cc6ca - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x5a2dc17cc6ca - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x5a2dc17cc6ca - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5a2dc17cc6ca - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5a2dc17cc6ca - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x5a2dc17cc6ca - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x5a2dc17a6964 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x5a2dc17a6964 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   34:     0x5a2dc17aa292 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   35:     0x5a2dc17aa292 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x5a2dc17aa292 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x5a2dc17aa292 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a2dc17aa292 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a2dc17aa292 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   40:     0x5a2dc17aa292 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5a2dc181bfcf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x5a2dc181bfcf - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   43:     0x7cba29fb0aa4 - <unknown>
[INFO] [stdout]   44:     0x7cba2a03da64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     iterators::tests::merge_iterator_test::test_merge_empty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 24 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "abea21d8763309f191948f86e64758d4c78438c9f832aadd50b3ee5ccd48b737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abea21d8763309f191948f86e64758d4c78438c9f832aadd50b3ee5ccd48b737", kill_on_drop: false }`
[INFO] [stdout] abea21d8763309f191948f86e64758d4c78438c9f832aadd50b3ee5ccd48b737
