[INFO] crate gauc 0.8.1 is already in cache
[INFO] checking gauc-0.8.1 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate gauc 0.8.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate gauc 0.8.1 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gauc 0.8.1
[INFO] finished tweaking crates.io crate gauc 0.8.1
[INFO] tweaked toml for crates.io crate gauc 0.8.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fbcc28c09d5e1f54488a07338fe662a8c3ac0a895563e155cf3c74183804a2c
[INFO] running `"docker" "start" "-a" "0fbcc28c09d5e1f54488a07338fe662a8c3ac0a895563e155cf3c74183804a2c"`
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[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:16:47
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type OperationResultGetCallback = Box<Box<Fn(&response::Get)>>;
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Get)`
[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/client/mod.rs:18:55
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type OperationResultGetInternalCallback = Box<Box<Fn(&response::GetInternal)>>;
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:22:50
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub type OperationResultRemoveCallback = Box<Box<Fn(&response::Remove)>>;
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Remove)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:24:58
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub type OperationResultRemoveInternalCallback = Box<Box<Fn(&response::RemoveInternal)>>;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub type OperationResultStoreCallback = Box<Box<Fn(&response::Store)>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Store)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:30:57
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type OperationResultStoreInternalCallback = Box<Box<Fn(&response::StoreInternal)>>;
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:34:53
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub type OperationResultViewQueryCallback = Box<Box<Fn(&response::ViewQuery)>>;
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQuery)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:36:61
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub type OperationResultViewQueryInternalCallback = Box<Box<Fn(&response::ViewQueryInternal)>>;
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:37:64
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub type OperationResultViewQueryInternalRowCallback = Box<Box<Fn(&Instance, &u64, *mut c_void)>>;
[INFO] [stderr]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Instance, &u64, *mut c_void)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:210:62
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::GetInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:274:62
[INFO] [stderr]     |
[INFO] [stderr] 274 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::RemoveInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:355:62
[INFO] [stderr]     |
[INFO] [stderr] 355 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::StoreInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:404:41
[INFO] [stderr]     |
[INFO] [stderr] 404 |                         let cb: Box<Box<Fn(&response::ViewQueryInternal)>> = Box::from_raw(row.cookie as *mut Box<Fn(&response::ViewQueryInternal)>);
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:404:115
[INFO] [stderr]     |
[INFO] [stderr] 404 |                         let cb: Box<Box<Fn(&response::ViewQueryInternal)>> = Box::from_raw(row.cookie as *mut Box<Fn(&response::ViewQueryInternal)>);
[INFO] [stderr]     |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/client/mod.rs:411:29
[INFO] [stderr]     |
[INFO] [stderr] 411 |             gcmd.cmdflags = (1 << 16);  // LCB_CMDVIEWQUERY_F_INCLUDE_DOCS;
[INFO] [stderr]     |                             ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:436:62
[INFO] [stderr]     |
[INFO] [stderr] 436 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::ViewQueryInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:482:35
[INFO] [stderr]     |
[INFO] [stderr] 482 |             let callback: Box<Box<Fn(&response::GetInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::GetInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:482:99
[INFO] [stderr]     |
[INFO] [stderr] 482 |             let callback: Box<Box<Fn(&response::GetInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::GetInternal)>);
[INFO] [stderr]     |                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:491:35
[INFO] [stderr]     |
[INFO] [stderr] 491 |             let callback: Box<Box<Fn(&response::RemoveInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::RemoveInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:491:102
[INFO] [stderr]     |
[INFO] [stderr] 491 |             let callback: Box<Box<Fn(&response::RemoveInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::RemoveInternal)>);
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:499:35
[INFO] [stderr]     |
[INFO] [stderr] 499 |             let callback: Box<Box<Fn(&response::StoreInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::StoreInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:499:101
[INFO] [stderr]     |
[INFO] [stderr] 499 |             let callback: Box<Box<Fn(&response::StoreInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::StoreInternal)>);
[INFO] [stderr]     |                                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::*`
[INFO] [stderr]    --> src/client/mod.rs:509:9
[INFO] [stderr]     |
[INFO] [stderr] 509 |     use test::*;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::AuthType`
[INFO] [stderr]  --> src/couchbase/types/authenticator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::AuthType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::super::funcs::lcbauth_set_mode`
[INFO] [stderr]  --> src/couchbase/types/authenticator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::super::funcs::lcbauth_set_mode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:16:47
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type OperationResultGetCallback = Box<Box<Fn(&response::Get)>>;
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Get)`
[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/client/mod.rs:18:55
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type OperationResultGetInternalCallback = Box<Box<Fn(&response::GetInternal)>>;
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:22:50
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub type OperationResultRemoveCallback = Box<Box<Fn(&response::Remove)>>;
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Remove)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:24:58
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub type OperationResultRemoveInternalCallback = Box<Box<Fn(&response::RemoveInternal)>>;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub type OperationResultStoreCallback = Box<Box<Fn(&response::Store)>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::Store)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:30:57
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type OperationResultStoreInternalCallback = Box<Box<Fn(&response::StoreInternal)>>;
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:34:53
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub type OperationResultViewQueryCallback = Box<Box<Fn(&response::ViewQuery)>>;
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQuery)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:36:61
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub type OperationResultViewQueryInternalCallback = Box<Box<Fn(&response::ViewQueryInternal)>>;
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:37:64
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub type OperationResultViewQueryInternalRowCallback = Box<Box<Fn(&Instance, &u64, *mut c_void)>>;
[INFO] [stderr]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Instance, &u64, *mut c_void)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:210:62
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::GetInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:274:62
[INFO] [stderr]     |
[INFO] [stderr] 274 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::RemoveInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:355:62
[INFO] [stderr]     |
[INFO] [stderr] 355 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::StoreInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:404:41
[INFO] [stderr]     |
[INFO] [stderr] 404 |                         let cb: Box<Box<Fn(&response::ViewQueryInternal)>> = Box::from_raw(row.cookie as *mut Box<Fn(&response::ViewQueryInternal)>);
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:404:115
[INFO] [stderr]     |
[INFO] [stderr] 404 |                         let cb: Box<Box<Fn(&response::ViewQueryInternal)>> = Box::from_raw(row.cookie as *mut Box<Fn(&response::ViewQueryInternal)>);
[INFO] [stderr]     |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/client/mod.rs:411:29
[INFO] [stderr]     |
[INFO] [stderr] 411 |             gcmd.cmdflags = (1 << 16);  // LCB_CMDVIEWQUERY_F_INCLUDE_DOCS;
[INFO] [stderr]     |                             ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:436:62
[INFO] [stderr]     |
[INFO] [stderr] 436 |             let user_data = Box::into_raw(boxed) as *mut Box<Fn(&response::ViewQueryInternal)> as *mut c_void;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::ViewQueryInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:482:35
[INFO] [stderr]     |
[INFO] [stderr] 482 |             let callback: Box<Box<Fn(&response::GetInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::GetInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:482:99
[INFO] [stderr]     |
[INFO] [stderr] 482 |             let callback: Box<Box<Fn(&response::GetInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::GetInternal)>);
[INFO] [stderr]     |                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::GetInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:491:35
[INFO] [stderr]     |
[INFO] [stderr] 491 |             let callback: Box<Box<Fn(&response::RemoveInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::RemoveInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:491:102
[INFO] [stderr]     |
[INFO] [stderr] 491 |             let callback: Box<Box<Fn(&response::RemoveInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::RemoveInternal)>);
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::RemoveInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:499:35
[INFO] [stderr]     |
[INFO] [stderr] 499 |             let callback: Box<Box<Fn(&response::StoreInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::StoreInternal)>);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:499:101
[INFO] [stderr]     |
[INFO] [stderr] 499 |             let callback: Box<Box<Fn(&response::StoreInternal)>> = Box::from_raw(cookie as *mut Box<Fn(&response::StoreInternal)>);
[INFO] [stderr]     |                                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&response::StoreInternal)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::AuthType`
[INFO] [stderr]  --> src/couchbase/types/authenticator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::AuthType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::super::funcs::lcbauth_set_mode`
[INFO] [stderr]  --> src/couchbase/types/authenticator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::super::funcs::lcbauth_set_mode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/mod.rs:100:25
[INFO] [stderr]     |
[INFO] [stderr] 100 |                     let mut res = lcbauth_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: variable does not need to be mutable
[INFO] [stderr]    --> src/web/mod.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let mut cas: u64 = 0;
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/web/mod.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |     let mut exptime: u32 = 0;
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/mod.rs:100:25
[INFO] [stderr]     |
[INFO] [stderr] 100 |                     let mut res = lcbauth_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 `std::result::Result` that must be used
[INFO] [stderr]    --> src/client/mod.rs:524:17
[INFO] [stderr]     |
[INFO] [stderr] 524 |                 client.upsert_sync("test", "{}", 0, 0);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/web/mod.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let mut cas: u64 = 0;
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/web/mod.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |     let mut exptime: u32 = 0;
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.71s
[INFO] running `"docker" "inspect" "0fbcc28c09d5e1f54488a07338fe662a8c3ac0a895563e155cf3c74183804a2c"`
[INFO] running `"docker" "rm" "-f" "0fbcc28c09d5e1f54488a07338fe662a8c3ac0a895563e155cf3c74183804a2c"`
[INFO] [stdout] 0fbcc28c09d5e1f54488a07338fe662a8c3ac0a895563e155cf3c74183804a2c
