[INFO] fetching crate cfg-earley 0.0.1...
[INFO] checking cfg-earley-0.0.1 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate cfg-earley 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate cfg-earley 0.0.1
[INFO] finished tweaking crates.io crate cfg-earley 0.0.1
[INFO] tweaked toml for crates.io crate cfg-earley 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cfg-earley 0.0.1 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]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to highest compatible versions
[INFO] [stderr]       Adding bit-matrix v0.8.1 (available: v0.10.1)
[INFO] [stderr]       Adding cfg-classify v0.0.1 (available: v0.1.1)
[INFO] [stderr]       Adding cfg-grammar v0.0.1 (available: v0.1.1)
[INFO] [stderr]       Adding cfg-sequence v0.0.1 (available: v0.1.1)
[INFO] [stderr]       Adding cfg-symbol v0.0.1 (available: v0.1.1)
[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] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/pczarn/cfg"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/pczarn/cfg"
[INFO] [stderr]    |              -------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `cfg-earley` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a
[INFO] running `Command { std: "docker" "start" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a", 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" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a", 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" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/pczarn/cfg"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/pczarn/cfg"
[INFO] [stderr]    |              -------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `cfg-earley` (manifest) generated 1 warning
[INFO] [stderr]     Checking bit-vec v0.7.0
[INFO] [stderr]     Checking cfg-symbol v0.0.1
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking cfg-grammar v0.0.1
[INFO] [stderr]     Checking bit-matrix v0.8.1
[INFO] [stderr]     Checking cfg-sequence v0.0.1
[INFO] [stderr]     Checking cfg-classify v0.0.1
[INFO] [stderr]     Checking cfg-earley v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `Option<Symbol>`
[INFO] [stdout]    --> src/history.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[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] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| x.0).into(), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| <Option<Symbol> as Into<_>>::into(x.0)).into(), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Option<Symbol>`
[INFO] [stdout]    --> src/history.rs:135:10
[INFO] [stdout]     |
[INFO] [stdout] 135 |         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[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] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| x.0.into()), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (<Option<Symbol> as Into<_>>::into(self.event.and_then(|x| x.0.into())), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/grammar.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn sequence(&mut self, lhs: Symbol) -> SequenceRuleBuilder<SequencesToProductions<Cfg>> {
[INFO] [stdout]    |                     ^^^^^^^^^ the lifetime is elided here          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 44 |     pub fn sequence(&mut self, lhs: Symbol) -> SequenceRuleBuilder<SequencesToProductions<'_, Cfg>> {
[INFO] [stdout]    |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cfg-earley` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `Option<Symbol>`
[INFO] [stdout]    --> src/history.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[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] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| x.0).into(), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| <Option<Symbol> as Into<_>>::into(x.0)).into(), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Option<Symbol>`
[INFO] [stdout]    --> src/history.rs:135:10
[INFO] [stdout]     |
[INFO] [stdout] 135 |         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[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] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (self.event.and_then(|x| x.0.into()), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 135 -         (self.event.and_then(|x| x.0.into()).into(), self.distance)
[INFO] [stdout] 135 +         (<Option<Symbol> as Into<_>>::into(self.event.and_then(|x| x.0.into())), self.distance)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/grammar.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn sequence(&mut self, lhs: Symbol) -> SequenceRuleBuilder<SequencesToProductions<Cfg>> {
[INFO] [stdout]    |                     ^^^^^^^^^ the lifetime is elided here          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 44 |     pub fn sequence(&mut self, lhs: Symbol) -> SequenceRuleBuilder<SequencesToProductions<'_, Cfg>> {
[INFO] [stdout]    |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cfg-earley` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a", kill_on_drop: false }`
[INFO] [stdout] 8f43793b30bdb7c58f3e4b48d3ef217b5faf71cc98aed51746ad19b3649f122a
