[INFO] cloning repository https://github.com/playaround88/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playaround88/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplayaround88%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplayaround88%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce346b064c218b844313a8e65b2dd2cebb3cc71e
[INFO] checking playaround88/kvs against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplayaround88%2Fkvs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playaround88/kvs on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playaround88/kvs
[INFO] finished tweaking git repo https://github.com/playaround88/kvs
[INFO] tweaked toml for git repo https://github.com/playaround88/kvs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/playaround88/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded sled v0.34.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03fd10369d2ee89e1d4ea44b5ae24d6266e079846f39b52a88318c4feea8778f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "03fd10369d2ee89e1d4ea44b5ae24d6266e079846f39b52a88318c4feea8778f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03fd10369d2ee89e1d4ea44b5ae24d6266e079846f39b52a88318c4feea8778f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fd10369d2ee89e1d4ea44b5ae24d6266e079846f39b52a88318c4feea8778f", kill_on_drop: false }`
[INFO] [stdout] 03fd10369d2ee89e1d4ea44b5ae24d6266e079846f39b52a88318c4feea8778f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2fa5280ab087ab5480a291649238008358748238c7227f7a94b825b37f896ab
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c2fa5280ab087ab5480a291649238008358748238c7227f7a94b825b37f896ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking sled v0.34.2
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] warning: unused import: `KvsEngine`
[INFO] [stdout]  --> src/bin/kvs-server.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use kvs::{KvStore, KvsEngine, Result};
[INFO] [stdout]   |                    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `store`
[INFO] [stdout]   --> src/bin/kvs-server.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut store = KvStore::open(current_dir()?)?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/kvs-server.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut store = KvStore::open(current_dir()?)?;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: unused import: `KvsEngine`
[INFO] [stdout]  --> src/bin/kvs-server.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use kvs::{KvStore, KvsEngine, Result};
[INFO] [stdout]   |                    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `store`
[INFO] [stdout]   --> src/bin/kvs-server.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut store = KvStore::open(current_dir()?)?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/kvs-server.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut store = KvStore::open(current_dir()?)?;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]   --> tests/tests.rs:69:11
[INFO] [stdout]    |
[INFO] [stdout] 69 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]    |           ^^^ method not found in `KvStore`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]    |        --- the method is available for `KvStore` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use kvs::KvsEngine;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]   --> tests/tests.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |     store.set("key2".to_owned(), "value2".to_owned())?;
[INFO] [stdout]    |           ^^^ method not found in `KvStore`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]    |        --- the method is available for `KvStore` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use kvs::KvsEngine;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]   --> tests/tests.rs:98:11
[INFO] [stdout]    |
[INFO] [stdout] 98 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]    |           ^^^ method not found in `KvStore`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]    |        --- the method is available for `KvStore` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use kvs::KvsEngine;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:186:11
[INFO] [stdout]     |
[INFO] [stdout] 186 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:187:11
[INFO] [stdout]     |
[INFO] [stdout] 187 |     store.set("key2".to_owned(), "value2".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:189:22
[INFO] [stdout]     |
[INFO] [stdout] 189 |     assert_eq!(store.get("key1".to_owned())?, Some("value1".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:190:22
[INFO] [stdout]     |
[INFO] [stdout] 190 |     assert_eq!(store.get("key2".to_owned())?, Some("value2".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |     assert_eq!(store.get("key1".to_owned())?, Some("value1".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:196:22
[INFO] [stdout]     |
[INFO] [stdout] 196 |     assert_eq!(store.get("key2".to_owned())?, Some("value2".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:207:11
[INFO] [stdout]     |
[INFO] [stdout] 207 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:208:22
[INFO] [stdout]     |
[INFO] [stdout] 208 |     assert_eq!(store.get("key1".to_owned())?, Some("value1".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:209:11
[INFO] [stdout]     |
[INFO] [stdout] 209 |     store.set("key1".to_owned(), "value2".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:210:22
[INFO] [stdout]     |
[INFO] [stdout] 210 |     assert_eq!(store.get("key1".to_owned())?, Some("value2".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:215:22
[INFO] [stdout]     |
[INFO] [stdout] 215 |     assert_eq!(store.get("key1".to_owned())?, Some("value2".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:216:11
[INFO] [stdout]     |
[INFO] [stdout] 216 |     store.set("key1".to_owned(), "value3".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:217:22
[INFO] [stdout]     |
[INFO] [stdout] 217 |     assert_eq!(store.get("key1".to_owned())?, Some("value3".to_owned()));
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:228:11
[INFO] [stdout]     |
[INFO] [stdout] 228 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:229:22
[INFO] [stdout]     |
[INFO] [stdout] 229 |     assert_eq!(store.get("key2".to_owned())?, None);
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:234:22
[INFO] [stdout]     |
[INFO] [stdout] 234 |     assert_eq!(store.get("key2".to_owned())?, None);
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:243:19
[INFO] [stdout]     |
[INFO] [stdout] 243 |     assert!(store.remove("key1".to_owned()).is_err());
[INFO] [stdout]     |                   ^^^^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:16:8
[INFO] [stdout]     |
[INFO] [stdout] 16  |     fn remove(&mut self, key: String) -> Result<()>;
[INFO] [stdout]     |        ------ the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:251:11
[INFO] [stdout]     |
[INFO] [stdout] 251 |     store.set("key1".to_owned(), "value1".to_owned())?;
[INFO] [stdout]     |           ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:252:19
[INFO] [stdout]     |
[INFO] [stdout] 252 |     assert!(store.remove("key1".to_owned()).is_ok());
[INFO] [stdout]     |                   ^^^^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:16:8
[INFO] [stdout]     |
[INFO] [stdout] 16  |     fn remove(&mut self, key: String) -> Result<()>;
[INFO] [stdout]     |        ------ the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:253:22
[INFO] [stdout]     |
[INFO] [stdout] 253 |     assert_eq!(store.get("key1".to_owned())?, None);
[INFO] [stdout]     |                      ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `set` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:280:19
[INFO] [stdout]     |
[INFO] [stdout] 280 |             store.set(key, value)?;
[INFO] [stdout]     |                   ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:12:8
[INFO] [stdout]     |
[INFO] [stdout] 12  |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `KvStore` in the current scope
[INFO] [stdout]    --> tests/tests.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 |             assert_eq!(store.get(key)?, Some(format!("{}", iter)));
[INFO] [stdout]     |                              ^^^ method not found in `KvStore`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/engines/mod.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]     |        --- the method is available for `KvStore` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use kvs::KvsEngine;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kvs` due to 26 previous errors
[INFO] running `Command { std: "docker" "inspect" "c2fa5280ab087ab5480a291649238008358748238c7227f7a94b825b37f896ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fa5280ab087ab5480a291649238008358748238c7227f7a94b825b37f896ab", kill_on_drop: false }`
[INFO] [stdout] c2fa5280ab087ab5480a291649238008358748238c7227f7a94b825b37f896ab
