[INFO] updating cached repository https://github.com/snlansky/rs-kv
[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] e845e5777b0eb4571cbe48eaab56121064f128e2
[INFO] checking snlansky/rs-kv against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnlansky%2Frs-kv" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snlansky/rs-kv on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/snlansky/rs-kv
[INFO] finished tweaking git repo https://github.com/snlansky/rs-kv
[INFO] tweaked toml for git repo https://github.com/snlansky/rs-kv written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/snlansky/rs-kv already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dbf7dccbe87c5be4c456f407c8aabf9e2a29e378ced3bfe75b96f783860b541f
[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" "dbf7dccbe87c5be4c456f407c8aabf9e2a29e378ced3bfe75b96f783860b541f"`
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[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:143:39
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send> {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:181:42
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:26:54
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:45:39
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:66:42
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:15:54
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send>;
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:27:42
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:143:39
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send> {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/engines/kvs.rs:181:42
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:26:54
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:45:39
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/sled.rs:66:42
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:15:54
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn set(&self, key: String, value: String) -> Box<Future<Item = (), Error = KvsError> + Send>;
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn get(&self, key: String) -> Box<Future<Item = Option<String>, Error = KvsError> + Send>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<String>, Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/engines/mod.rs:27:42
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn remove(&self, key: String) -> Box<Future<Item = (), Error = KvsError> + Send>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = KvsError> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SledKvsEngine`
[INFO] [stderr]  --> benches/server_bench.rs:6:31
[INFO] [stderr]   |
[INFO] [stderr] 6 | use kvs::{KvStore, KvsEngine, SledKvsEngine};
[INFO] [stderr]   |                               ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> benches/server_bench.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sled::Db`
[INFO] [stderr]  --> benches/server_bench.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sled::Db;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> benches/server_bench.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]   --> benches/engine_bench.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |                     KvStore::open(temp_dir.path()).unwrap()
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ --------------- supplied 1 argument
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]   --> benches/server_bench.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     let engine = KvStore::open(temp_dir.path()).unwrap();
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ --------------- supplied 1 argument
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `unwrap` found for struct `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:22:77
[INFO] [stderr]    |
[INFO] [stderr] 22 |                         store.set(format!("key{}", i), "value".to_string()).unwrap();
[INFO] [stderr]    |                                                                             ^^^^^^ method not found in `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]   --> benches/engine_bench.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 SledKvsEngine::new(Db::start_default(&temp_dir).unwrap())
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^ ------------------------------------- supplied 1 argument
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set` found for enum `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     db.set(format!("key{}", i), "value".to_string()).unwrap();
[INFO] [stderr]    |                        ^^^ method not found in `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]   --> benches/engine_bench.rs:52:29
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let mut store = KvStore::open(temp_dir.path()).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ --------------- supplied 1 argument
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `unwrap` found for struct `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:56:22
[INFO] [stderr]    |
[INFO] [stderr] 56 |                     .unwrap();
[INFO] [stderr]    |                      ^^^^^^ method not found in `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `unwrap` found for struct `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = std::option::Option<std::string::String>> + std::marker::Send + 'static)>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:62:22
[INFO] [stderr]    |
[INFO] [stderr] 62 |                     .unwrap();
[INFO] [stderr]    |                      ^^^^^^ method not found in `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = std::option::Option<std::string::String>> + std::marker::Send + 'static)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]   --> benches/engine_bench.rs:69:22
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut db = SledKvsEngine::new(Db::start_default(&temp_dir).unwrap());
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^ ------------------------------------- supplied 1 argument
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set` found for enum `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:71:16
[INFO] [stderr]    |
[INFO] [stderr] 71 |             db.set(format!("key{}", key_i), "value".to_string())
[INFO] [stderr]    |                ^^^ method not found in `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get` found for enum `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>` in the current scope
[INFO] [stderr]   --> benches/engine_bench.rs:76:16
[INFO] [stderr]    |
[INFO] [stderr] 76 |             db.get(format!("key{}", rng.gen_range(1, 1 << i))).unwrap();
[INFO] [stderr]    |                ^^^ method not found in `std::result::Result<kvs::engines::sled::SledKvsEngine<_>, kvs::error::KvsError>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `kvs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `unwrap` found for struct `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>` in the current scope
[INFO] [stderr]   --> benches/server_bench.rs:31:81
[INFO] [stderr]    |
[INFO] [stderr] 31 | ...                   e.set(format!("key{}", i), "value".to_string()).unwrap();
[INFO] [stderr]    |                                                                       ^^^^^^ method not found in `std::boxed::Box<(dyn futures::future::Future<Error = kvs::error::KvsError, Item = ()> + std::marker::Send + 'static)>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `kvs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dbf7dccbe87c5be4c456f407c8aabf9e2a29e378ced3bfe75b96f783860b541f"`
[INFO] running `"docker" "rm" "-f" "dbf7dccbe87c5be4c456f407c8aabf9e2a29e378ced3bfe75b96f783860b541f"`
[INFO] [stdout] dbf7dccbe87c5be4c456f407c8aabf9e2a29e378ced3bfe75b96f783860b541f
