[INFO] cloning repository https://github.com/brianshih1/mini-lsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brianshih1/mini-lsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianshih1%2Fmini-lsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianshih1%2Fmini-lsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74b040a210f2e90a0598ccca980b5345855c01ce
[INFO] testing brianshih1/mini-lsm against 1.94.0 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianshih1%2Fmini-lsm" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/brianshih1/mini-lsm
[INFO] finished tweaking git repo https://github.com/brianshih1/mini-lsm
[INFO] tweaked toml for git repo https://github.com/brianshih1/mini-lsm written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brianshih1/mini-lsm on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/brianshih1/mini-lsm 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" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-skiplist v0.1.0
[INFO] [stderr]   Downloaded duct v0.13.6
[INFO] [stderr]   Downloaded shared_child v1.0.0
[INFO] [stderr]   Downloaded ouroboros_macro v0.15.5
[INFO] [stderr]   Downloaded os_pipe v1.1.2
[INFO] [stderr]   Downloaded terminal_size v0.1.17
[INFO] [stderr]   Downloaded triomphe v0.1.8
[INFO] [stderr]   Downloaded quanta v0.10.1
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded clap_derive v4.0.21
[INFO] [stderr]   Downloaded camino v1.1.1
[INFO] [stderr]   Downloaded serde_derive v1.0.151
[INFO] [stderr]   Downloaded ouroboros v0.15.5
[INFO] [stderr]   Downloaded serde v1.0.151
[INFO] [stderr]   Downloaded moka v0.9.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56798690dfd81c9b0e51e8bf0f4a9744832e0bc9b2c73110b837919d959bd696
[INFO] running `Command { std: "docker" "start" "-a" "56798690dfd81c9b0e51e8bf0f4a9744832e0bc9b2c73110b837919d959bd696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56798690dfd81c9b0e51e8bf0f4a9744832e0bc9b2c73110b837919d959bd696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56798690dfd81c9b0e51e8bf0f4a9744832e0bc9b2c73110b837919d959bd696", kill_on_drop: false }`
[INFO] [stdout] 56798690dfd81c9b0e51e8bf0f4a9744832e0bc9b2c73110b837919d959bd696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 861d98104a90c384fae85b6b5b03d4849e31f09ac343af4ada47762989e821e3
[INFO] running `Command { std: "docker" "start" "-a" "861d98104a90c384fae85b6b5b03d4849e31f09ac343af4ada47762989e821e3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]    Compiling raw-cpuid v10.6.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling crossbeam-skiplist v0.1.0
[INFO] [stderr]    Compiling moka v0.9.6
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling tagptr v0.2.0
[INFO] [stderr]    Compiling triomphe v0.1.8
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling clap_lex v0.3.0
[INFO] [stderr]    Compiling arc-swap v1.5.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling uuid v1.2.2
[INFO] [stderr]    Compiling shared_child v1.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling quanta v0.10.1
[INFO] [stderr]    Compiling os_pipe v1.1.2
[INFO] [stderr]    Compiling duct v0.13.6
[INFO] [stderr]    Compiling console v0.15.2
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.6
[INFO] [stderr]    Compiling is-terminal v0.4.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling ouroboros_macro v0.15.5
[INFO] [stderr]    Compiling clap_derive v4.0.21
[INFO] [stderr]    Compiling ouroboros v0.15.5
[INFO] [stderr]    Compiling clap v4.0.32
[INFO] [stderr]    Compiling mini-lsm v0.1.0 (/opt/rustwide/workdir/mini-lsm)
[INFO] [stderr]    Compiling mini-lsm-starter v0.1.0 (/opt/rustwide/workdir/mini-lsm-starter)
[INFO] [stdout] warning: unused import: `DerefMut`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Bound, DerefMut};
[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: `Error`
[INFO] [stdout]  --> mini-lsm-starter/src/mem_table.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> mini-lsm-starter/src/table/builder.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> mini-lsm-starter/src/table/builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     block::{self, BlockBuilder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Block`
[INFO] [stdout]   --> mini-lsm-starter/src/table/iterator.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     block::{Block, BlockIterator},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> mini-lsm-starter/src/table.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufMut`
[INFO] [stdout]   --> mini-lsm-starter/src/table.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | use bytes::{Buf, BufMut, Bytes};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/merge_iterator.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 let _ = std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/mem_table.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         it.next();
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let _ = it.next();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mini-lsm-xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.54s
[INFO] running `Command { std: "docker" "inspect" "861d98104a90c384fae85b6b5b03d4849e31f09ac343af4ada47762989e821e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861d98104a90c384fae85b6b5b03d4849e31f09ac343af4ada47762989e821e3", kill_on_drop: false }`
[INFO] [stdout] 861d98104a90c384fae85b6b5b03d4849e31f09ac343af4ada47762989e821e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3afb712ddae6f97acd5cadd44cb984c744b11bf7ca9be9b7e3094bc2b52cd1d
[INFO] running `Command { std: "docker" "start" "-a" "f3afb712ddae6f97acd5cadd44cb984c744b11bf7ca9be9b7e3094bc2b52cd1d", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stdout] warning: unused import: `DerefMut`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Bound, DerefMut};
[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: `Error`
[INFO] [stdout]  --> mini-lsm-starter/src/mem_table.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> mini-lsm-starter/src/table/builder.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> mini-lsm-starter/src/table/builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     block::{self, BlockBuilder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Block`
[INFO] [stdout]   --> mini-lsm-starter/src/table/iterator.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     block::{Block, BlockIterator},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> mini-lsm-starter/src/table.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufMut`
[INFO] [stdout]   --> mini-lsm-starter/src/table.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | use bytes::{Buf, BufMut, Bytes};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/merge_iterator.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 let _ = std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mini-lsm-xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/mem_table.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         it.next();
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let _ = it.next();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling mini-lsm v0.1.0 (/opt/rustwide/workdir/mini-lsm)
[INFO] [stderr]    Compiling mini-lsm-starter v0.1.0 (/opt/rustwide/workdir/mini-lsm-starter)
[INFO] [stdout] warning: unused import: `DerefMut`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Bound, DerefMut};
[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: `Error`
[INFO] [stdout]  --> mini-lsm-starter/src/mem_table.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{Error, Ok, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> mini-lsm-starter/src/table/builder.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> mini-lsm-starter/src/table/builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     block::{self, BlockBuilder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Block`
[INFO] [stdout]   --> mini-lsm-starter/src/table/iterator.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     block::{Block, BlockIterator},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> mini-lsm-starter/src/table.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufMut`
[INFO] [stdout]   --> mini-lsm-starter/src/table.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | use bytes::{Buf, BufMut, Bytes};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/tests/merge_iterator_test.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut iter = MergeIterator::create(vec![
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut iter = TwoMergeIterator::create(i1, i2).unwrap();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     let mut iter = TwoMergeIterator::create(i1, i2).unwrap();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_bytes` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn as_bytes(x: &[u8]) -> Bytes {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/iterators/merge_iterator.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 let _ = std::mem::replace(&mut self.current, Some(popped));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             self.next();
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let _ = self.next();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mini-lsm-starter/src/mem_table.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         it.next();
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let _ = it.next();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.19s
[INFO] running `Command { std: "docker" "inspect" "f3afb712ddae6f97acd5cadd44cb984c744b11bf7ca9be9b7e3094bc2b52cd1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3afb712ddae6f97acd5cadd44cb984c744b11bf7ca9be9b7e3094bc2b52cd1d", kill_on_drop: false }`
[INFO] [stdout] f3afb712ddae6f97acd5cadd44cb984c744b11bf7ca9be9b7e3094bc2b52cd1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1628f19b665c8059df3b842478768e2dfd72b8d192f38be05636ff32847c62dd
[INFO] running `Command { std: "docker" "start" "-a" "1628f19b665c8059df3b842478768e2dfd72b8d192f38be05636ff32847c62dd", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unused import: `DerefMut`
[INFO] [stderr]  --> mini-lsm-starter/src/lsm_storage.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Bound, DerefMut};
[INFO] [stderr]   |                       ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> mini-lsm-starter/src/mem_table.rs:7:14
[INFO] [stderr]   |
[INFO] [stderr] 7 | use anyhow::{Error, Ok, Result};
[INFO] [stderr]   |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BytesMut`
[INFO] [stderr]  --> mini-lsm-starter/src/table/builder.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | use bytes::{Bytes, BytesMut};
[INFO] [stderr]   |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> mini-lsm-starter/src/table/builder.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     block::{self, BlockBuilder},
[INFO] [stderr]    |             ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Block`
[INFO] [stderr]   --> mini-lsm-starter/src/table/iterator.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |     block::{Block, BlockIterator},
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Cursor`
[INFO] [stderr]  --> mini-lsm-starter/src/table.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Cursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufMut`
[INFO] [stderr]   --> mini-lsm-starter/src/table.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 | use bytes::{Buf, BufMut, Bytes};
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mini-lsm-starter/src/iterators/merge_iterator.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let _ = self.current.as_mut().unwrap_unchecked().1.next();
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 std::mem::replace(&mut self.current, Some(popped));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 let _ = std::mem::replace(&mut self.current, Some(popped));
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> mini-lsm-starter/src/iterators/merge_iterator.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |             self.next();
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let _ = self.next();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             self.next();
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 110 |             let _ = self.next();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mini-lsm-starter/src/mem_table.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |         it.next();
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let _ = it.next();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> mini-lsm-starter/src/iterators/tests/merge_iterator_test.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut iter = MergeIterator::create(vec![
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut iter = TwoMergeIterator::create(i1, i2).unwrap();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut iter = TwoMergeIterator::create(i1, i2).unwrap();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `as_bytes` is never used
[INFO] [stderr]   --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn as_bytes(x: &[u8]) -> Bytes {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mini-lsm-starter` (lib) generated 12 warnings (run `cargo fix --lib -p mini-lsm-starter` to apply 7 suggestions)
[INFO] [stderr] warning: `mini-lsm-starter` (lib test) generated 16 warnings (12 duplicates) (run `cargo fix --lib -p mini-lsm-starter --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mini_lsm-12ac55a77e67cb73)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test block::tests::test_block_build_all ... ok
[INFO] [stderr] 
[INFO] [stdout] test block::tests::test_block_build_single_key ... ok
[INFO] [stderr] thread 'mem_table::tests::test_memtable_get' (33) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/base.rs:781:33:
[INFO] [stdout] test block::tests::test_block_build_full ... ok
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stdout] test block::tests::test_block_encode ... ok
[INFO] [stderr] 
[INFO] [stdout] test block::tests::test_block_decode ... ok
[INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stdout] test iterators::tests::merge_iterator_test::test_merge_2 ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_3 ... 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::merge_iterator_test::test_merge_empty ... 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::two_merge_iterator_test::test_merge_4 ... ok
[INFO] [stdout] test iterators::tests::two_merge_iterator_test::test_merge_5 ... ok
[INFO] [stderr]    0:     0x594925ef1672 - std::backtrace_rs::backtrace::libunwind::trace::hff358a60abf734fc
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x594925ef1672 - std::backtrace_rs::backtrace::trace_unsynchronized::h3b121f916dd95ec6
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x594925ef1672 - std::sys::backtrace::_print_fmt::hde0a62ded68798e9
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x594925ef1672 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h93773fc827e3113d
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x594925f01c0a - core::fmt::rt::Argument::fmt::h01eff69902dad97f
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x594925f01c0a - core::fmt::write::hed7b5c73d82ecb7c
[INFO] [stderr]    6:     0x594925ebf316 - std::io::default_write_fmt::hd49a3027caaa0994
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x594925ebf316 - std::io::Write::write_fmt::h6f0185aecf0ed75f
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x594925ed0619 - std::sys::backtrace::BacktraceLock::print::h8b1d6fcc5a56d1a3
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x594925ed0619 - std::panicking::default_hook::{{closure}}::h2be84df4f189ae36
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x594925ed0479 - std::panicking::default_hook::hf0ea8939246f43a9
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x594925e6145e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h02d35e3888986252
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   12:     0x594925e6145e - test::test_main_with_exit_callback::{{closure}}::h939640a27d647173
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x594925ed0942 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc9df09ff391af3e7
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   14:     0x594925ed0942 - std::panicking::panic_with_hook::hb4bd9ac1123582a0
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x594925ed070a - std::panicking::panic_handler::{{closure}}::hde00dd15f5637fe2
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:691:13
[INFO] [stderr]   16:     0x594925ecb7d9 - std::sys::backtrace::__rust_end_short_backtrace::hb72197fa777c1785
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x594925eb352d - __rustc[4425a7e20b4c8619]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x594925f08f4d - core::panicking::panic_nounwind_fmt::runtime::hc88ed2bfe3f4a8c8
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x594925f08f4d - core::panicking::panic_nounwind_fmt::h0fb754c2e2cbb5f3
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/intrinsics/mod.rs:2432:9
[INFO] [stderr]   20:     0x594925db98f4 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::h689b676e6320aef6
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ub_checks.rs:73:21
[INFO] [stderr]   21:     0x594925db97a9 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::ha1281c5814779b6a
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ub_checks.rs:78:17
[INFO] [stderr]   22:     0x594925db75e8 - core::slice::<impl [T]>::get_unchecked::hd562ccd92090f6bf
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/slice/mod.rs:646:26
[INFO] [stderr]   23:     0x594925dd7c0d - <crossbeam_skiplist::base::Tower<K,V> as core::ops::index::Index<usize>>::index::h327f29bfe6bc595b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/base.rs:39:32
[INFO] [stderr]   24:     0x594925ddb434 - crossbeam_skiplist::base::SkipList<K,V>::search_position::hf5e251ed0d232cb4
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/base.rs:781:33
[INFO] [stderr]   25:     0x594925dda49d - crossbeam_skiplist::base::SkipList<K,V>::insert_internal::h463f03e4b31d5f93
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/base.rs:871:31
[INFO] [stderr]   26:     0x594925ddbbe4 - crossbeam_skiplist::base::SkipList<K,V>::insert::h7581b3ba7664b613
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/base.rs:1085:14
[INFO] [stderr]   27:     0x594925de74d3 - crossbeam_skiplist::map::SkipMap<K,V>::insert::h6f8d7fa5b49e344c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-skiplist-0.1.0/src/map.rs:375:31
[INFO] [stderr]   28:     0x594925e123f0 - mini_lsm::mem_table::MemTable::put::h17d549ae0b3b8836
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/mem_table.rs:42:14
[INFO] [stderr]   29:     0x594925dba354 - mini_lsm::mem_table::tests::test_memtable_get::h17ed4dc4139e9728
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/mem_table/tests.rs:10:14
[INFO] [stderr]   30:     0x594925dba8d7 - mini_lsm::mem_table::tests::test_memtable_get::{{closure}}::h227b51b2bc9f2705
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/mem_table/tests.rs:8:23
[INFO] [stderr]   31:     0x594925e01e66 - core::ops::function::FnOnce::call_once::h475fe6a59515c612
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   32:     0x594925e6121b - core::ops::function::FnOnce::call_once::hddb3cd395c36bfbb
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   33:     0x594925e6121b - test::__rust_begin_short_backtrace::h0b6a7601d9750bfa
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:663:18
[INFO] [stderr]   34:     0x594925e74c2a - test::run_test_in_process::{{closure}}::h444209903f00b347
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:686:74
[INFO] [stderr]   35:     0x594925e74c2a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hfb3ba8f46e537649
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   36:     0x594925e74c2a - std::panicking::catch_unwind::do_call::h1672a45911fcf9dc
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stderr]   37:     0x594925e74c2a - std::panicking::catch_unwind::h0fadaee22787a6dd
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stderr]   38:     0x594925e74c2a - std::panic::catch_unwind::hc47ad190f2c8e188
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stderr]   39:     0x594925e74c2a - test::run_test_in_process::hcd7faaf934f29999
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:686:27
[INFO] [stderr]   40:     0x594925e74c2a - test::run_test::{{closure}}::hddc4550da4871867
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:607:43
[INFO] [stderr]   41:     0x594925e4f084 - test::run_test::{{closure}}::h98ae26689f13ed94
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:637:41
[INFO] [stderr]   42:     0x594925e4f084 - std::sys::backtrace::__rust_begin_short_backtrace::h3ec4d1f21ad44588
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   43:     0x594925e52a22 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd8bf2c73d479939f
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stderr]   44:     0x594925e52a22 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h3b4248f358af2491
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   45:     0x594925e52a22 - std::panicking::catch_unwind::do_call::hda10a64f4b8daebe
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stderr]   46:     0x594925e52a22 - std::panicking::catch_unwind::h659e5ee8336ec8c7
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stderr]   47:     0x594925e52a22 - std::panic::catch_unwind::h9d4d66a538912c18
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stderr]   48:     0x594925e52a22 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h7557906bb51d79f1
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stderr]   49:     0x594925e52a22 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9e460d1d7fc83d35
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   50:     0x594925ec69bf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h61282da819d64ea9
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2206:9
[INFO] [stderr]   51:     0x594925ec69bf - std::sys::thread::unix::Thread::new::thread_start::h982f9ea829d1b5fb
[INFO] [stderr]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stderr]   52:     0x7b46ade76aa4 - <unknown>
[INFO] [stderr]   53:     0x7b46adf03a64 - clone
[INFO] [stderr]   54:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `-p mini-lsm --lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/mini_lsm-12ac55a77e67cb73` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "1628f19b665c8059df3b842478768e2dfd72b8d192f38be05636ff32847c62dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1628f19b665c8059df3b842478768e2dfd72b8d192f38be05636ff32847c62dd", kill_on_drop: false }`
[INFO] [stdout] 1628f19b665c8059df3b842478768e2dfd72b8d192f38be05636ff32847c62dd
