[INFO] cloning repository https://github.com/xieshuaihu/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xieshuaihu/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxieshuaihu%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxieshuaihu%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6198e01ce2eb04f1bc1f47249bdec09c2a49b1d1
[INFO] checking xieshuaihu/kvs against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxieshuaihu%2Fkvs" "/workspace/builds/worker-117/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xieshuaihu/kvs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xieshuaihu/kvs
[INFO] finished tweaking git repo https://github.com/xieshuaihu/kvs
[INFO] tweaked toml for git repo https://github.com/xieshuaihu/kvs written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate git repo https://github.com/xieshuaihu/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f53841f7a8dfc6694d67d27a77ad216313e72b90c27db05fdbe565da9936e8e7
[INFO] running `Command { std: "docker" "start" "-a" "f53841f7a8dfc6694d67d27a77ad216313e72b90c27db05fdbe565da9936e8e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f53841f7a8dfc6694d67d27a77ad216313e72b90c27db05fdbe565da9936e8e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f53841f7a8dfc6694d67d27a77ad216313e72b90c27db05fdbe565da9936e8e7", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0101a3c1a185057811a234fd95a273bcf5a8adbf96567ef94511cbac65eacf
[INFO] running `Command { std: "docker" "start" "-a" "9e0101a3c1a185057811a234fd95a273bcf5a8adbf96567ef94511cbac65eacf", kill_on_drop: false }`
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[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking rand v0.8.4
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[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling protoc-rust v2.25.1
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking bstr v0.2.16
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[INFO] [stdout] error[E0053]: method `set` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/kv.rs:78:54
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn set(&mut self, key: String, value: String) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                      |
[INFO] [stdout]    |                                                      expected struct `error::Error`, found struct `Box`
[INFO] [stdout]    |                                                      help: change the output type to match the trait: `std::result::Result<(), error::Error>`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/engine/mod.rs:10:54
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn set(&mut self, key: String, value: String) -> Result<()>;
[INFO] [stdout]    |                                                      ---------- type in trait
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut KvStore, std::string::String, std::string::String) -> std::result::Result<_, error::Error>`
[INFO] [stdout]               found fn pointer `fn(&mut KvStore, std::string::String, std::string::String) -> std::result::Result<_, Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `get` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/kv.rs:85:39
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn get(&mut self, key: String) -> Result<Option<String>, Box<dyn Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       expected struct `error::Error`, found struct `Box`
[INFO] [stdout]    |                                       help: change the output type to match the trait: `std::result::Result<std::option::Option<std::string::String>, error::Error>`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/engine/mod.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn get(&mut self, key: String) -> Result<Option<String>>;
[INFO] [stdout]    |                                       ---------------------- type in trait
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut KvStore, std::string::String) -> std::result::Result<_, error::Error>`
[INFO] [stdout]               found fn pointer `fn(&mut KvStore, std::string::String) -> std::result::Result<_, Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `remove` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/kv.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn remove(&mut self, key: String) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          expected struct `error::Error`, found struct `Box`
[INFO] [stdout]    |                                          help: change the output type to match the trait: `std::result::Result<(), error::Error>`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/engine/mod.rs:14:42
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn remove(&mut self, key: String) -> Result<()>;
[INFO] [stdout]    |                                          ---------- type in trait
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut KvStore, std::string::String) -> std::result::Result<_, error::Error>`
[INFO] [stdout]               found fn pointer `fn(&mut KvStore, std::string::String) -> std::result::Result<_, Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `OsString: std::error::Error` is not satisfied
[INFO] [stdout]    --> src/engine/kv.rs:29:60
[INFO] [stdout]     |
[INFO] [stdout] 29  |             let file_name = entry.file_name().into_string()?;
[INFO] [stdout]     |                                                            ^ the trait `std::error::Error` is not implemented for `OsString`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `From<OsString>` for `Box<dyn std::error::Error>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<std::result::Result<Infallible, OsString>>` for `std::result::Result<KvStore, Box<dyn std::error::Error>>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: Borrow<&str>` is not satisfied
[INFO] [stdout]   --> src/engine/kv.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |                         self.memory_date.remove(key);
[INFO] [stdout]    |                                          ^^^^^^ the trait `Borrow<&str>` is not implemented for `std::string::String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <std::string::String as Borrow<str>>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0277.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kvs` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9e0101a3c1a185057811a234fd95a273bcf5a8adbf96567ef94511cbac65eacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0101a3c1a185057811a234fd95a273bcf5a8adbf96567ef94511cbac65eacf", kill_on_drop: false }`
[INFO] [stdout] 9e0101a3c1a185057811a234fd95a273bcf5a8adbf96567ef94511cbac65eacf
