[INFO] cloning repository https://github.com/JoaoCnh/hello-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoaoCnh/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoaoCnh%2Fhello-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoaoCnh%2Fhello-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2b38d54d180c430c7c2726420844ba77c908b674 [INFO] checking JoaoCnh/hello-rust against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoaoCnh%2Fhello-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/JoaoCnh/hello-rust [INFO] finished tweaking git repo https://github.com/JoaoCnh/hello-rust [INFO] tweaked toml for git repo https://github.com/JoaoCnh/hello-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/JoaoCnh/hello-rust 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] crate git repo https://github.com/JoaoCnh/hello-rust 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2 [INFO] running `Command { std: "docker" "start" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2", 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" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2", 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" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Checking smawk v0.3.2 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking smallvec v1.13.1 [INFO] [stderr] Checking textwrap v0.13.4 [INFO] [stderr] Checking ferris-says v0.3.1 [INFO] [stderr] Checking hello-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: useless conversion to the same type: `&str` [INFO] [stdout] --> src/rustlings/strings.rs:29:18 [INFO] [stdout] | [INFO] [stdout] 29 | string_slice("nice weather".into()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this method call relies on the `impl Into 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] 29 - string_slice("nice weather".into()); [INFO] [stdout] 29 + string_slice("nice weather"); [INFO] [stdout] | [INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint [INFO] [stdout] | [INFO] [stdout] 29 - string_slice("nice weather".into()); [INFO] [stdout] 29 + string_slice(<&str as Into<_>>::into("nice weather")); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hello-rust` (bin "hello-rust") 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: `&str` [INFO] [stdout] --> src/rustlings/strings.rs:29:18 [INFO] [stdout] | [INFO] [stdout] 29 | string_slice("nice weather".into()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this method call relies on the `impl Into 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] 29 - string_slice("nice weather".into()); [INFO] [stdout] 29 + string_slice("nice weather"); [INFO] [stdout] | [INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint [INFO] [stdout] | [INFO] [stdout] 29 - string_slice("nice weather".into()); [INFO] [stdout] 29 + string_slice(<&str as Into<_>>::into("nice weather")); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hello-rust` (bin "hello-rust" test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2", kill_on_drop: false }` [INFO] [stdout] 42ddef24d8a555c48702192f55d84d68eb0da157fe01d46d5f7ce7eac4ec5ea2