[INFO] fetching crate proto-vulcan 0.1.6...
[INFO] checking proto-vulcan-0.1.6 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate proto-vulcan 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate proto-vulcan 0.1.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate proto-vulcan 0.1.6
[INFO] tweaked toml for crates.io crate proto-vulcan 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proto-vulcan 0.1.6 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate proto-vulcan 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c
[INFO] running `Command { std: "docker" "start" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c", 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" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c", 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" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proto-vulcan-macros v0.1.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking proto-vulcan v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/relation/clpfd/distinctfd.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let mut mself = Rc::make_mut(&mut self);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Rc<dyn Constraint<U, E>>`
[INFO] [stdout]   --> src/state/constraint/store.rs:86:49
[INFO] [stdout]    |
[INFO] [stdout] 86 |             normalized_store.push_and_normalize(storec.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] 86 -             normalized_store.push_and_normalize(storec.into());
[INFO] [stdout] 86 +             normalized_store.push_and_normalize(storec);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 86 -             normalized_store.push_and_normalize(storec.into());
[INFO] [stdout] 86 +             normalized_store.push_and_normalize(<Rc<dyn Constraint<U, E>> as Into<_>>::into(storec));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/state/fd.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn iter(&self) -> FiniteDomainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn iter(&self) -> FiniteDomainIter<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proto-vulcan` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/relation/clpfd/distinctfd.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let mut mself = Rc::make_mut(&mut self);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Rc<dyn constraint::Constraint<U, E>>`
[INFO] [stdout]   --> src/state/constraint/store.rs:86:49
[INFO] [stdout]    |
[INFO] [stdout] 86 |             normalized_store.push_and_normalize(storec.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] 86 -             normalized_store.push_and_normalize(storec.into());
[INFO] [stdout] 86 +             normalized_store.push_and_normalize(storec);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 86 -             normalized_store.push_and_normalize(storec.into());
[INFO] [stdout] 86 +             normalized_store.push_and_normalize(<Rc<dyn constraint::Constraint<U, E>> as Into<_>>::into(storec));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/state/fd.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn iter(&self) -> FiniteDomainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn iter(&self) -> FiniteDomainIter<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proto-vulcan` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c", kill_on_drop: false }`
[INFO] [stdout] 5137ccb1f56a70cf2c8ef5918878ed3ab0ac707012b7ff9522e8aeafcea94a4c
