[INFO] fetching crate roopes-core 0.1.1...
[INFO] checking roopes-core-0.1.1 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate roopes-core 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate roopes-core 0.1.1
[INFO] finished tweaking crates.io crate roopes-core 0.1.1
[INFO] tweaked toml for crates.io crate roopes-core 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate roopes-core 0.1.1 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages to highest compatible versions
[INFO] [stderr]       Adding delegate v0.9.0 (available: v0.13.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a
[INFO] running `Command { std: "docker" "start" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling unicode-ident v1.0.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]     Checking enclose v1.2.1
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling delegate v0.9.0
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]     Checking roopes-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/patterns/transformer_chain/heap.rs:106:7
[INFO] [stdout]     |
[INFO] [stdout] 106 |     #[must_use]
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/patterns/transformer_chain/heap.rs:106:7
[INFO] [stdout]     |
[INFO] [stdout] 106 |     #[must_use]
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `()`
[INFO] [stdout]   --> src/patterns/observer/tests.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         {
[INFO] [stdout] 49 | |             let tgl = *has_run_toggle.borrow();
[INFO] [stdout] 50 | |             (*has_run_toggle.borrow_mut()) = !tgl;
[INFO] [stdout] 51 | |         }
[INFO] [stdout] 52 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 51 -         }
[INFO] [stdout] 52 -         .into()
[INFO] [stdout] 51 +         }
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 48 ~         <() as Into<_>>::into({
[INFO] [stdout] 49 |             let tgl = *has_run_toggle.borrow();
[INFO] [stdout] 50 |             (*has_run_toggle.borrow_mut()) = !tgl;
[INFO] [stdout] 51 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `()`
[INFO] [stdout]   --> src/patterns/observer/tests.rs:94:49
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let lambda_command = command::Heap::from(|| {}.into());
[INFO] [stdout]    |                                                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 94 -     let lambda_command = command::Heap::from(|| {}.into());
[INFO] [stdout] 94 +     let lambda_command = command::Heap::from(|| {});
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 94 -     let lambda_command = command::Heap::from(|| {}.into());
[INFO] [stdout] 94 +     let lambda_command = command::Heap::from(|| <() as Into<_>>::into({}));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `()`
[INFO] [stdout]   --> src/patterns/observer/tests.rs:95:50
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let lambda_command2 = command::Heap::from(|| {}.into());
[INFO] [stdout]    |                                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 95 -     let lambda_command2 = command::Heap::from(|| {}.into());
[INFO] [stdout] 95 +     let lambda_command2 = command::Heap::from(|| {});
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 95 -     let lambda_command2 = command::Heap::from(|| {}.into());
[INFO] [stdout] 95 +     let lambda_command2 = command::Heap::from(|| <() as Into<_>>::into({}));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roopes-core` (lib test) due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: unused dependency `embed-doc-image`
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | [dependencies.embed-doc-image]
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `embed-doc-image`
[INFO] [stderr] warning: `roopes-core` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a", kill_on_drop: false }`
[INFO] [stdout] 91b6331731c0df4af2409e6b4dbbb3027fabb8b1a36e25152da50ed11627524a
