[INFO] cloning repository https://github.com/yzyDavid/YBase
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yzyDavid/YBase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ff6c15216bafcfe6da83c1683fb7178d9e6926b
[INFO] checking yzyDavid/YBase against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yzyDavid/YBase
[INFO] finished tweaking git repo https://github.com/yzyDavid/YBase
[INFO] tweaked toml for git repo https://github.com/yzyDavid/YBase written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yzyDavid/YBase on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yzyDavid/YBase 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e64c048dd4c9691a26ce759c17223c3658367b8e0c3ab35a44e942125da3e2ed
[INFO] running `Command { std: "docker" "start" "-a" "e64c048dd4c9691a26ce759c17223c3658367b8e0c3ab35a44e942125da3e2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e64c048dd4c9691a26ce759c17223c3658367b8e0c3ab35a44e942125da3e2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64c048dd4c9691a26ce759c17223c3658367b8e0c3ab35a44e942125da3e2ed", kill_on_drop: false }`
[INFO] [stdout] e64c048dd4c9691a26ce759c17223c3658367b8e0c3ab35a44e942125da3e2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b4d9d4762d310978c75f69bcfe9f27de608ad7d482be7c1b64526cd193d4307
[INFO] running `Command { std: "docker" "start" "-a" "9b4d9d4762d310978c75f69bcfe9f27de608ad7d482be7c1b64526cd193d4307", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking ybase v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::collections::HashMap;
[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: `std::thread::current`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread::current;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread::current;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os_string`
[INFO] [stdout]   --> src/error.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn from(os_string: std::ffi::OsString) -> Self {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_os_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os_string`
[INFO] [stdout]   --> src/error.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn from(os_string: std::ffi::OsString) -> Self {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_os_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Record` is never constructed
[INFO] [stdout]  --> src/nexus/value.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Record(u64, Vec<Value>);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/nexus/value.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Record(u64, Vec<Value>);
[INFO] [stdout]   |            ------ ^^^  ^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Record` is never constructed
[INFO] [stdout]  --> src/nexus/value.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Record(u64, Vec<Value>);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `meta_path` and `context` are never read
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct FixMapStorageEngine {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 47 |     meta_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 48 |     meta: Meta,
[INFO] [stdout] 49 |     context: RuntimeContext,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/nexus/value.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Record(u64, Vec<Value>);
[INFO] [stdout]   |            ------ ^^^  ^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `alloc_page` and `sync_meta` are never used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl FixMapStorageEngine {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn alloc_page(&mut self) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn sync_meta(&self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `meta_path` and `context` are never read
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct FixMapStorageEngine {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 47 |     meta_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 48 |     meta: Meta,
[INFO] [stdout] 49 |     context: RuntimeContext,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `alloc_page` and `sync_meta` are never used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl FixMapStorageEngine {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn alloc_page(&mut self) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn sync_meta(&self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_FieldDef`
[INFO] [stdout] 20 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 21 | struct FieldDef {
[INFO] [stdout]    |        -------- `FieldDef` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_FieldDef`
[INFO] [stdout] 20 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 21 | struct FieldDef {
[INFO] [stdout]    |        -------- `FieldDef` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_FieldDef`
[INFO] [stdout] 20 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 21 | struct FieldDef {
[INFO] [stdout]    |        -------- `FieldDef` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_FieldDef`
[INFO] [stdout] 20 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 21 | struct FieldDef {
[INFO] [stdout]    |        -------- `FieldDef` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Schema`
[INFO] [stdout] 27 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 28 | pub struct Schema {
[INFO] [stdout]    |            ------ `Schema` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Schema`
[INFO] [stdout] 27 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 28 | pub struct Schema {
[INFO] [stdout]    |            ------ `Schema` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Schema`
[INFO] [stdout] 27 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 28 | pub struct Schema {
[INFO] [stdout]    |            ------ `Schema` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Schema`
[INFO] [stdout] 27 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 28 | pub struct Schema {
[INFO] [stdout]    |            ------ `Schema` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Meta`
[INFO] [stdout] 33 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 34 | pub struct Meta {
[INFO] [stdout]    |            ---- `Meta` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Meta`
[INFO] [stdout] 33 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 34 | pub struct Meta {
[INFO] [stdout]    |            ---- `Meta` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Meta`
[INFO] [stdout] 33 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 34 | pub struct Meta {
[INFO] [stdout]    |            ---- `Meta` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Meta`
[INFO] [stdout] 33 | #[serde(deny_unknown_fields)]
[INFO] [stdout] 34 | pub struct Meta {
[INFO] [stdout]    |            ---- `Meta` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         self.mmap_file(&page_path);
[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] 63 |         let _ = self.mmap_file(&page_path);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         self.mmap_file(&page_path);
[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] 63 |         let _ = self.mmap_file(&page_path);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         serde_json::to_string(&self.meta);
[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] 94 |         let _ = serde_json::to_string(&self.meta);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/storage/fixmap/engine.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         serde_json::to_string(&self.meta);
[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] 94 |         let _ = serde_json::to_string(&self.meta);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/storage/fixmap/engine.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             self.mmap_file(&page_path);
[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] 108 |             let _ = self.mmap_file(&page_path);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/storage/fixmap/engine.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             self.mmap_file(&page_path);
[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] 108 |             let _ = self.mmap_file(&page_path);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ybase` (lib) due to 1 previous error; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ybase` (lib test) due to 1 previous error; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9b4d9d4762d310978c75f69bcfe9f27de608ad7d482be7c1b64526cd193d4307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4d9d4762d310978c75f69bcfe9f27de608ad7d482be7c1b64526cd193d4307", kill_on_drop: false }`
[INFO] [stdout] 9b4d9d4762d310978c75f69bcfe9f27de608ad7d482be7c1b64526cd193d4307
