[INFO] fetching crate bo 0.1.4...
[INFO] testing bo-0.1.4 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate bo 0.1.4 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate bo 0.1.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bo 0.1.4
[INFO] finished tweaking crates.io crate bo 0.1.4
[INFO] tweaked toml for crates.io crate bo 0.1.4 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate crates.io crate bo 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ba326c0f178900aef5407b0f2c386d6610279d58a687d15a11175a16d8da127
[INFO] running `Command { std: "docker" "start" "-a" "4ba326c0f178900aef5407b0f2c386d6610279d58a687d15a11175a16d8da127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ba326c0f178900aef5407b0f2c386d6610279d58a687d15a11175a16d8da127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ba326c0f178900aef5407b0f2c386d6610279d58a687d15a11175a16d8da127", kill_on_drop: false }`
[INFO] [stdout] 4ba326c0f178900aef5407b0f2c386d6610279d58a687d15a11175a16d8da127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fbe6c8c4f9a215aae824eaa49fc7566b6fcd7cb55054c79e684d6020210b595
[INFO] running `Command { std: "docker" "start" "-a" "1fbe6c8c4f9a215aae824eaa49fc7566b6fcd7cb55054c79e684d6020210b595", kill_on_drop: false }`
[INFO] [stderr]    Compiling bo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/stat.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(S) -> (S, A) + 'state>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(S) -> (S, A) + 'state`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/reader.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(&R) -> A + 'reader>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> A + 'reader`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lense.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get(&self, obj: &(Self::Object)) -> Self::Value {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lense.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                  --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "1fbe6c8c4f9a215aae824eaa49fc7566b6fcd7cb55054c79e684d6020210b595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fbe6c8c4f9a215aae824eaa49fc7566b6fcd7cb55054c79e684d6020210b595", kill_on_drop: false }`
[INFO] [stdout] 1fbe6c8c4f9a215aae824eaa49fc7566b6fcd7cb55054c79e684d6020210b595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bcc3741a18cfb08a79711540e604959071fb357569835a4869ef086c64ee2c1
[INFO] running `Command { std: "docker" "start" "-a" "1bcc3741a18cfb08a79711540e604959071fb357569835a4869ef086c64ee2c1", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/stat.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(S) -> (S, A) + 'state>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(S) -> (S, A) + 'state`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/reader.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(&R) -> A + 'reader>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> A + 'reader`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lense.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get(&self, obj: &(Self::Object)) -> Self::Value {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lense.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                  --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `space`
[INFO] [stdout]   --> examples/reader.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn get(&self, space: &str, key: i32) -> i32 {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_space`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/stat.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(S) -> (S, A) + 'state>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(S) -> (S, A) + 'state`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/reader.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     run: Box<Fn(&R) -> A + 'reader>,
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> A + 'reader`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lense.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get(&self, obj: &(Self::Object)) -> Self::Value {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `space`
[INFO] [stdout]   --> examples/reader.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn find_all(&self, space: &str, key: i32) -> Vec<i32> {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> examples/reader.rs:32:37
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn find_all(&self, space: &str, key: i32) -> Vec<i32> {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]    --> src/validation.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub type ValidationNel<E: Clone, A> = Validation<LinkedList<E>, A>;
[INFO] [stdout]     |                                  --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "1bcc3741a18cfb08a79711540e604959071fb357569835a4869ef086c64ee2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bcc3741a18cfb08a79711540e604959071fb357569835a4869ef086c64ee2c1", kill_on_drop: false }`
[INFO] [stdout] 1bcc3741a18cfb08a79711540e604959071fb357569835a4869ef086c64ee2c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3a74ff79b11d2b73a2e70e216b281170c8b26a3205580972c94c2d7a8c9235bb
[INFO] running `Command { std: "docker" "start" "-a" "3a74ff79b11d2b73a2e70e216b281170c8b26a3205580972c94c2d7a8c9235bb", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/stat.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     run: Box<Fn(S) -> (S, A) + 'state>,
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(S) -> (S, A) + 'state`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/reader.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     run: Box<Fn(&R) -> A + 'reader>,
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> A + 'reader`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lense.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn get(&self, obj: &(Self::Object)) -> Self::Value {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lense.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]    --> src/validation.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stderr]     |                           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]     |
[INFO] [stderr] 259 | pub type ValidationNel<E, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stderr]     |                        --
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]    --> src/validation.rs:259:37
[INFO] [stderr]     |
[INFO] [stderr] 259 | pub type ValidationNel<E: Clone, A: Clone> = Validation<LinkedList<E>, A>;
[INFO] [stderr]     |                                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]     |
[INFO] [stderr] 259 | pub type ValidationNel<E: Clone, A> = Validation<LinkedList<E>, A>;
[INFO] [stderr]     |                                  --
[INFO] [stderr] 
[INFO] [stderr] warning: `bo` (lib) generated 6 warnings
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lib.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bo` (lib test) generated 6 warnings (5 duplicates)
[INFO] [stderr] warning: unused variable: `space`
[INFO] [stderr]   --> examples/reader.rs:20:19
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn get(&self, space: &str, key: i32) -> i32 {
[INFO] [stderr]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_space`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `space`
[INFO] [stderr]   --> examples/reader.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn find_all(&self, space: &str, key: i32) -> Vec<i32> {
[INFO] [stderr]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_space`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> examples/reader.rs:32:37
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn find_all(&self, space: &str, key: i32) -> Vec<i32> {
[INFO] [stderr]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: `bo` (example "reader") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bo-d79dab25c909cb53)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lense::tests::it_works ... ok
[INFO] [stdout] test reader::tests::it_works ... ok
[INFO] [stdout] test stat::tests::it_works ... ok
[INFO] [stdout] test tests::it2_works ... ok
[INFO] [stdout] test validation::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bo
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lense.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn get(&self, obj: &(Self::Object)) -> Self::Value {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3a74ff79b11d2b73a2e70e216b281170c8b26a3205580972c94c2d7a8c9235bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a74ff79b11d2b73a2e70e216b281170c8b26a3205580972c94c2d7a8c9235bb", kill_on_drop: false }`
[INFO] [stdout] 3a74ff79b11d2b73a2e70e216b281170c8b26a3205580972c94c2d7a8c9235bb
