[INFO] updating cached repository https://github.com/sepiropht/kvs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 04130a5c8f6c863ac8bf1714765aa6ea7ae90653
[INFO] testing sepiropht/kvs against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsepiropht%2Fkvs" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sepiropht/kvs on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sepiropht/kvs
[INFO] finished tweaking git repo https://github.com/sepiropht/kvs
[INFO] tweaked toml for git repo https://github.com/sepiropht/kvs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sepiropht/kvs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 492f9e12067a09f2e426bb8496b2d5bea45f910f7bd4665a2d1c3983c7ec98e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "492f9e12067a09f2e426bb8496b2d5bea45f910f7bd4665a2d1c3983c7ec98e2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 73 |     store.set(key, value);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 78 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 87 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_value`
[INFO] [stderr]   --> src/bin/kvs.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             key_value,
[INFO] [stderr]    |             ^^^^^^^^^ help: try ignoring the field: `key_value: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:85:20
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set`
[INFO] [stderr]   --> src/bin/kvs.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get`
[INFO] [stderr]   --> src/bin/kvs.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rm`
[INFO] [stderr]   --> src/bin/kvs.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.88s
[INFO] running `"docker" "inspect" "492f9e12067a09f2e426bb8496b2d5bea45f910f7bd4665a2d1c3983c7ec98e2"`
[INFO] running `"docker" "rm" "-f" "492f9e12067a09f2e426bb8496b2d5bea45f910f7bd4665a2d1c3983c7ec98e2"`
[INFO] [stdout] 492f9e12067a09f2e426bb8496b2d5bea45f910f7bd4665a2d1c3983c7ec98e2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ebe71c71ec0c0773fbd1ea76a2d30f49e76f763852ad1136bb379a713a802719
[INFO] running `"docker" "start" "-a" "ebe71c71ec0c0773fbd1ea76a2d30f49e76f763852ad1136bb379a713a802719"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling float-cmp v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 73 |     store.set(key, value);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 78 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 87 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_value`
[INFO] [stderr]   --> src/bin/kvs.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             key_value,
[INFO] [stderr]    |             ^^^^^^^^^ help: try ignoring the field: `key_value: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:85:20
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set`
[INFO] [stderr]   --> src/bin/kvs.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get`
[INFO] [stderr]   --> src/bin/kvs.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rm`
[INFO] [stderr]   --> src/bin/kvs.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling predicates v1.0.4
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 73 |     store.set(key, value);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 78 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 87 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_value`
[INFO] [stderr]   --> src/bin/kvs.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             key_value,
[INFO] [stderr]    |             ^^^^^^^^^ help: try ignoring the field: `key_value: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:85:20
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set`
[INFO] [stderr]   --> src/bin/kvs.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get`
[INFO] [stderr]   --> src/bin/kvs.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rm`
[INFO] [stderr]   --> src/bin/kvs.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.74s
[INFO] running `"docker" "inspect" "ebe71c71ec0c0773fbd1ea76a2d30f49e76f763852ad1136bb379a713a802719"`
[INFO] running `"docker" "rm" "-f" "ebe71c71ec0c0773fbd1ea76a2d30f49e76f763852ad1136bb379a713a802719"`
[INFO] [stdout] ebe71c71ec0c0773fbd1ea76a2d30f49e76f763852ad1136bb379a713a802719
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 834d9adbaaed064b4491acaae4e40391c43b517d36e9f20cc200651620e6ff93
[INFO] running `"docker" "start" "-a" "834d9adbaaed064b4491acaae4e40391c43b517d36e9f20cc200651620e6ff93"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 73 |     store.set(key, value);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 78 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 87 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 73 |     store.set(key, value);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_value`
[INFO] [stderr]   --> src/bin/kvs.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             key_value,
[INFO] [stderr]    |             ^^^^^^^^^ help: try ignoring the field: `key_value: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 78 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/bin/kvs.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     unimplemented!();
[INFO] [stderr]    |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 87 |     let res = store.get(key.to_owned());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_value`
[INFO] [stderr]   --> src/bin/kvs.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             key_value,
[INFO] [stderr]    |             ^^^^^^^^^ help: try ignoring the field: `key_value: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             key,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `key: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]   --> src/bin/kvs.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             all,
[INFO] [stderr]    |             ^^^ help: try ignoring the field: `all: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interactive`
[INFO] [stderr]   --> src/bin/kvs.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             interactive,
[INFO] [stderr]    |             ^^^^^^^^^^^ help: try ignoring the field: `interactive: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:85:20
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set`
[INFO] [stderr]   --> src/bin/kvs.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get`
[INFO] [stderr]   --> src/bin/kvs.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rm`
[INFO] [stderr]   --> src/bin/kvs.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> src/bin/kvs.rs:85:20
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/kvs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut store = KvStore::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set`
[INFO] [stderr]   --> src/bin/kvs.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn set(key: String, value: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get`
[INFO] [stderr]   --> src/bin/kvs.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn get(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rm`
[INFO] [stderr]   --> src/bin/kvs.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rm(key: String, store: &KvStore) {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kvs-cdeafa2bc8e0af19
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kvs-bbe8c2c90d6506c1
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-e21e5b3cd0e69c67
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test get_non_existent_value ... ok
[INFO] [stdout] test overwrite_value ... ok
[INFO] [stdout] test get_stored_value ... ok
[INFO] [stdout] test remove_key ... ok
[INFO] [stdout] test cli_get ... ok
[INFO] [stdout] test cli_invalid_subcommand ... ok
[INFO] [stdout] test cli_rm ... ok
[INFO] [stdout] test cli_no_args ... ok
[INFO] [stdout] test cli_version ... ok
[INFO] [stdout] test cli_set ... ok
[INFO] [stdout] test cli_invalid_get ... ok
[INFO] [stdout] test cli_invalid_rm ... ok
[INFO] [stdout] test cli_invalid_set ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kvs
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "834d9adbaaed064b4491acaae4e40391c43b517d36e9f20cc200651620e6ff93"`
[INFO] running `"docker" "rm" "-f" "834d9adbaaed064b4491acaae4e40391c43b517d36e9f20cc200651620e6ff93"`
[INFO] [stdout] 834d9adbaaed064b4491acaae4e40391c43b517d36e9f20cc200651620e6ff93