[INFO] cloning repository https://github.com/mithe24/automaton
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mithe24/automaton" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithe24%2Fautomaton", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithe24%2Fautomaton'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29a94a0c348e9fe6f41a0eba1fd28810f554bd46
[INFO] checking mithe24/automaton against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithe24%2Fautomaton" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mithe24/automaton
[INFO] finished tweaking git repo https://github.com/mithe24/automaton
[INFO] tweaked toml for git repo https://github.com/mithe24/automaton written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mithe24/automaton 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 git repo https://github.com/mithe24/automaton 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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c
[INFO] running `Command { std: "docker" "start" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c", 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" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c", 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" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling dot-structures v0.1.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]    Compiling thiserror v2.0.21
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling thiserror-impl v2.0.21
[INFO] [stderr]    Compiling dot-generator v0.2.0
[INFO] [stderr]    Compiling into-attr v0.1.1
[INFO] [stderr]    Compiling pest v2.9.2
[INFO] [stderr]     Checking getrandom v0.4.3
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]    Compiling pest_meta v2.9.2
[INFO] [stderr]    Compiling into-attr-derive v0.2.1
[INFO] [stderr]    Compiling pest_generator v2.9.2
[INFO] [stderr]    Compiling pest_derive v2.9.2
[INFO] [stderr]     Checking graphviz-rust v0.9.9
[INFO] [stderr]     Checking automaton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `String`
[INFO] [stdout]    --> src/automaton.rs:147:37
[INFO] [stdout]     |
[INFO] [stdout] 147 |             let candidate: String = format!("q{}", self.fresh_counter).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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `automaton` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `String`
[INFO] [stdout]    --> src/automaton.rs:147:37
[INFO] [stdout]     |
[INFO] [stdout] 147 |             let candidate: String = format!("q{}", self.fresh_counter).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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `automaton` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c", kill_on_drop: false }`
[INFO] [stdout] 79fb1a051d14006b42c1057dc4a436f594911c791d862709447abe7a2f3d5a8c
