[INFO] cloning repository https://github.com/tendan/simple_db_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tendan/simple_db_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftendan%2Fsimple_db_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftendan%2Fsimple_db_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 891b18ee4634c4d51ecfa645cd27a6034bebcc3b
[INFO] testing tendan/simple_db_rust against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftendan%2Fsimple_db_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tendan/simple_db_rust
[INFO] finished tweaking git repo https://github.com/tendan/simple_db_rust
[INFO] tweaked toml for git repo https://github.com/tendan/simple_db_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tendan/simple_db_rust on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tendan/simple_db_rust 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27fdb54d4b9a526f9e99217965e4b9056305f24f05989c5bd7f87b4d3de5cd85
[INFO] running `Command { std: "docker" "start" "-a" "27fdb54d4b9a526f9e99217965e4b9056305f24f05989c5bd7f87b4d3de5cd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27fdb54d4b9a526f9e99217965e4b9056305f24f05989c5bd7f87b4d3de5cd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27fdb54d4b9a526f9e99217965e4b9056305f24f05989c5bd7f87b4d3de5cd85", kill_on_drop: false }`
[INFO] [stdout] 27fdb54d4b9a526f9e99217965e4b9056305f24f05989c5bd7f87b4d3de5cd85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b0349695a18d0e16ab7bfabf8e1c0e657ca4cde204f5006e8d47f7a3d8e9b53
[INFO] running `Command { std: "docker" "start" "-a" "8b0349695a18d0e16ab7bfabf8e1c0e657ca4cde204f5006e8d47f7a3d8e9b53", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_database v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn create(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn update(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn delete(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn open(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/core/error.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     NotImplemented(String),
[INFO] [stdout]   |     -------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     NotImplemented(String),
[INFO] [stdout] 5 +     NotImplemented(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Other` is never constructed
[INFO] [stdout]  --> src/core/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum ErrorMessage {
[INFO] [stdout]   |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Other(String)
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StringOrErrorMessage` is never used
[INFO] [stdout]  --> src/core/manage.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type StringOrErrorMessage = Result<String, ErrorMessage>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EntryType` is never used
[INFO] [stdout]  --> src/core/manage.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum EntryType {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]   --> src/core/manage.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Database {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Entity` is never constructed
[INFO] [stdout]   --> src/core/manage.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Entity {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BasicOperations` is never used
[INFO] [stdout]   --> src/core/manage.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait BasicOperations {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReadOperation` is never used
[INFO] [stdout]   --> src/core/manage.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait ReadOperation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OpenOperation` is never used
[INFO] [stdout]   --> src/core/manage.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub trait OpenOperation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Open` is never constructed
[INFO] [stdout]   --> src/core/command.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum PromptCommand {
[INFO] [stdout]    |          ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Open,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusCode` is never used
[INFO] [stdout]   --> src/core/command.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum StatusCode {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DatabaseOperation` is never constructed
[INFO] [stdout]  --> src/core/operation.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct DatabaseOperation {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "8b0349695a18d0e16ab7bfabf8e1c0e657ca4cde204f5006e8d47f7a3d8e9b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0349695a18d0e16ab7bfabf8e1c0e657ca4cde204f5006e8d47f7a3d8e9b53", kill_on_drop: false }`
[INFO] [stdout] 8b0349695a18d0e16ab7bfabf8e1c0e657ca4cde204f5006e8d47f7a3d8e9b53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cac494d929b261d9a374911b1a725e8e4e595c360b8cc028a32a5788e8da1fe7
[INFO] running `Command { std: "docker" "start" "-a" "cac494d929b261d9a374911b1a725e8e4e595c360b8cc028a32a5788e8da1fe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_database v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn create(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn update(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn delete(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/core/manage.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn open(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/core/error.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     NotImplemented(String),
[INFO] [stdout]   |     -------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     NotImplemented(String),
[INFO] [stdout] 5 +     NotImplemented(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Other` is never constructed
[INFO] [stdout]  --> src/core/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum ErrorMessage {
[INFO] [stdout]   |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Other(String)
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StringOrErrorMessage` is never used
[INFO] [stdout]  --> src/core/manage.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type StringOrErrorMessage = Result<String, ErrorMessage>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EntryType` is never used
[INFO] [stdout]  --> src/core/manage.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum EntryType {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]   --> src/core/manage.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Database {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Entity` is never constructed
[INFO] [stdout]   --> src/core/manage.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Entity {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BasicOperations` is never used
[INFO] [stdout]   --> src/core/manage.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait BasicOperations {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReadOperation` is never used
[INFO] [stdout]   --> src/core/manage.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait ReadOperation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OpenOperation` is never used
[INFO] [stdout]   --> src/core/manage.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub trait OpenOperation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Open` is never constructed
[INFO] [stdout]   --> src/core/command.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum PromptCommand {
[INFO] [stdout]    |          ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Open,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusCode` is never used
[INFO] [stdout]   --> src/core/command.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum StatusCode {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DatabaseOperation` is never constructed
[INFO] [stdout]  --> src/core/operation.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct DatabaseOperation {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "cac494d929b261d9a374911b1a725e8e4e595c360b8cc028a32a5788e8da1fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac494d929b261d9a374911b1a725e8e4e595c360b8cc028a32a5788e8da1fe7", kill_on_drop: false }`
[INFO] [stdout] cac494d929b261d9a374911b1a725e8e4e595c360b8cc028a32a5788e8da1fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c760a77b4a9838225195d517ce086fc30fef31a5575b945daadeecb8be282573
[INFO] running `Command { std: "docker" "start" "-a" "c760a77b4a9838225195d517ce086fc30fef31a5575b945daadeecb8be282573", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/core/manage.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn create(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/core/manage.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn update(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/core/manage.rs:22:22
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn delete(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/core/manage.rs:27:20
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn open(&self, args: &str) -> StringOrErrorMessage {
[INFO] [stderr]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/core/error.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     NotImplemented(String),
[INFO] [stderr]   |     -------------- ^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 5 -     NotImplemented(String),
[INFO] [stderr] 5 +     NotImplemented(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Other` is never constructed
[INFO] [stderr]  --> src/core/error.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum ErrorMessage {
[INFO] [stderr]   |          ------------ variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 6 |     Other(String)
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `StringOrErrorMessage` is never used
[INFO] [stderr]  --> src/core/manage.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | type StringOrErrorMessage = Result<String, ErrorMessage>;
[INFO] [stderr]   |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `EntryType` is never used
[INFO] [stderr]  --> src/core/manage.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum EntryType {
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Database` is never constructed
[INFO] [stderr]   --> src/core/manage.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Database {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Entity` is never constructed
[INFO] [stderr]   --> src/core/manage.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct Entity {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BasicOperations` is never used
[INFO] [stderr]   --> src/core/manage.rs:40:11
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub trait BasicOperations {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ReadOperation` is never used
[INFO] [stderr]   --> src/core/manage.rs:48:11
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub trait ReadOperation {
[INFO] [stderr]    |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `OpenOperation` is never used
[INFO] [stderr]   --> src/core/manage.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub trait OpenOperation {
[INFO] [stderr]    |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Open` is never constructed
[INFO] [stderr]   --> src/core/command.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  6 | pub enum PromptCommand {
[INFO] [stderr]    |          ------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     Open,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `StatusCode` is never used
[INFO] [stderr]   --> src/core/command.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum StatusCode {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DatabaseOperation` is never constructed
[INFO] [stderr]  --> src/core/operation.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct DatabaseOperation {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_database` (bin "simple_database" test) generated 16 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_database-e691c4d988d3525e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c760a77b4a9838225195d517ce086fc30fef31a5575b945daadeecb8be282573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c760a77b4a9838225195d517ce086fc30fef31a5575b945daadeecb8be282573", kill_on_drop: false }`
[INFO] [stdout] c760a77b4a9838225195d517ce086fc30fef31a5575b945daadeecb8be282573