[INFO] cloning repository https://github.com/j0hn-mc-clane/comprehensive-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j0hn-mc-clane/comprehensive-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0hn-mc-clane%2Fcomprehensive-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0hn-mc-clane%2Fcomprehensive-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d92eb811992f9eaf668e1d84a3631e1a9f867409 [INFO] testing j0hn-mc-clane/comprehensive-rust against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0hn-mc-clane%2Fcomprehensive-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/j0hn-mc-clane/comprehensive-rust [INFO] finished tweaking git repo https://github.com/j0hn-mc-clane/comprehensive-rust [INFO] tweaked toml for git repo https://github.com/j0hn-mc-clane/comprehensive-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/j0hn-mc-clane/comprehensive-rust on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/j0hn-mc-clane/comprehensive-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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d72a817a569fbd2d243a155bc84e32c766f00393e07d455b18d5653c888f0994 [INFO] running `Command { std: "docker" "start" "-a" "d72a817a569fbd2d243a155bc84e32c766f00393e07d455b18d5653c888f0994", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d72a817a569fbd2d243a155bc84e32c766f00393e07d455b18d5653c888f0994", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d72a817a569fbd2d243a155bc84e32c766f00393e07d455b18d5653c888f0994", kill_on_drop: false }` [INFO] [stdout] d72a817a569fbd2d243a155bc84e32c766f00393e07d455b18d5653c888f0994 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 394915217a2f1dd6cfcf2fb172aa9c1494e6c87fb852a817a53e3595df71a5f8 [INFO] running `Command { std: "docker" "start" "-a" "394915217a2f1dd6cfcf2fb172aa9c1494e6c87fb852a817a53e3595df71a5f8", kill_on_drop: false }` [INFO] [stderr] Compiling comprehensive_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0106]: missing lifetime specifier [INFO] [stdout] --> src/day_one.rs:74:36 [INFO] [stdout] | [INFO] [stdout] 74 | fn oldest_book(self) -> Option<&Book> { [INFO] [stdout] | ^ expected named lifetime parameter [INFO] [stdout] | [INFO] [stdout] = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from [INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` [INFO] [stdout] | [INFO] [stdout] 74 | fn oldest_book(self) -> Option<&'static Book> { [INFO] [stdout] | +++++++ [INFO] [stdout] help: instead, you are more likely to want to change the argument to be borrowed... [INFO] [stdout] | [INFO] [stdout] 74 | fn oldest_book(&self) -> Option<&Book> { [INFO] [stdout] | + [INFO] [stdout] help: ...or alternatively, you might want to return an owned value [INFO] [stdout] | [INFO] [stdout] 74 - fn oldest_book(self) -> Option<&Book> { [INFO] [stdout] 74 + fn oldest_book(self) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `book` [INFO] [stdout] --> src/day_one.rs:66:23 [INFO] [stdout] | [INFO] [stdout] 66 | fn add_book(self, book: Book) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_book` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0106`. [INFO] [stdout] [INFO] [stderr] error: could not compile `comprehensive_rust` (bin "comprehensive_rust") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "394915217a2f1dd6cfcf2fb172aa9c1494e6c87fb852a817a53e3595df71a5f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "394915217a2f1dd6cfcf2fb172aa9c1494e6c87fb852a817a53e3595df71a5f8", kill_on_drop: false }` [INFO] [stdout] 394915217a2f1dd6cfcf2fb172aa9c1494e6c87fb852a817a53e3595df71a5f8