[INFO] cloning repository https://github.com/BrendanNolan/leetcode-index_into_clice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrendanNolan/leetcode-index_into_clice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendanNolan%2Fleetcode-index_into_clice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendanNolan%2Fleetcode-index_into_clice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f938a4941e607ad1650f246a1eb29d3a1caf2caa
[INFO] testing BrendanNolan/leetcode-index_into_clice against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendanNolan%2Fleetcode-index_into_clice" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BrendanNolan/leetcode-index_into_clice on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BrendanNolan/leetcode-index_into_clice
[INFO] finished tweaking git repo https://github.com/BrendanNolan/leetcode-index_into_clice
[INFO] tweaked toml for git repo https://github.com/BrendanNolan/leetcode-index_into_clice written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BrendanNolan/leetcode-index_into_clice 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dccbf5e1face9e6d96ca300d3b7bf33b0ba1994ed44368c75abd9c606ffe583
[INFO] running `Command { std: "docker" "start" "-a" "2dccbf5e1face9e6d96ca300d3b7bf33b0ba1994ed44368c75abd9c606ffe583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dccbf5e1face9e6d96ca300d3b7bf33b0ba1994ed44368c75abd9c606ffe583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dccbf5e1face9e6d96ca300d3b7bf33b0ba1994ed44368c75abd9c606ffe583", kill_on_drop: false }`
[INFO] [stdout] 2dccbf5e1face9e6d96ca300d3b7bf33b0ba1994ed44368c75abd9c606ffe583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57e3e8681b7b7233feff33d58219abcbf70c9582260e109dd34e78be8716470a
[INFO] running `Command { std: "docker" "start" "-a" "57e3e8681b7b7233feff33d58219abcbf70c9582260e109dd34e78be8716470a", kill_on_drop: false }`
[INFO] [stderr]    Compiling index_into_clice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the type `str` cannot be indexed by `{integer}`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let c = s[0];
[INFO] [stdout]   |               ^ string indices are ranges of `usize`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `SliceIndex<str>` is not implemented for `{integer}`
[INFO] [stdout]   = note: you can use `.chars().nth()` or `.bytes().nth()`
[INFO] [stdout]           for more information, see chapter 8 in The Book: <https://doc.rust-lang.org/book/ch08-02-strings.html#indexing-into-strings>
[INFO] [stdout]   = help: the trait `SliceIndex<[_]>` is implemented for `usize`
[INFO] [stdout]   = help: for that trait implementation, expected `[_]`, found `str`
[INFO] [stdout]   = note: required for `str` to implement `Index<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `index_into_clice` (bin "index_into_clice") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "57e3e8681b7b7233feff33d58219abcbf70c9582260e109dd34e78be8716470a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e3e8681b7b7233feff33d58219abcbf70c9582260e109dd34e78be8716470a", kill_on_drop: false }`
[INFO] [stdout] 57e3e8681b7b7233feff33d58219abcbf70c9582260e109dd34e78be8716470a
