[INFO] cloning repository https://github.com/juanibiapina/king
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juanibiapina/king" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanibiapina%2Fking", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanibiapina%2Fking'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c5a00fcd5ea423eba6579a8a7d7146f9b7e0d55
[INFO] testing juanibiapina/king against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanibiapina%2Fking" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/juanibiapina/king on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/juanibiapina/king
[INFO] finished tweaking git repo https://github.com/juanibiapina/king
[INFO] tweaked toml for git repo https://github.com/juanibiapina/king written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/juanibiapina/king already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.0
[INFO] [stderr]   Downloaded ncurses v5.87.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 27dbd112862f54f1d00cc6595355a6ebebc7b70d02d861b6353300c91a6abb82
[INFO] running `Command { std: "docker" "start" "-a" "27dbd112862f54f1d00cc6595355a6ebebc7b70d02d861b6353300c91a6abb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27dbd112862f54f1d00cc6595355a6ebebc7b70d02d861b6353300c91a6abb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27dbd112862f54f1d00cc6595355a6ebebc7b70d02d861b6353300c91a6abb82", kill_on_drop: false }`
[INFO] [stdout] 27dbd112862f54f1d00cc6595355a6ebebc7b70d02d861b6353300c91a6abb82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4e65b961b1b94b589690bdf4aa9ea390ae68c091b949554e28b07c3c853537
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "de4e65b961b1b94b589690bdf4aa9ea390ae68c091b949554e28b07c3c853537", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling ncurses v5.87.0
[INFO] [stderr]    Compiling king v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/buffer.rs:45:30
[INFO] [stdout]    |
[INFO] [stdout] 45 |         self.contents.insert((y + 1), rest);
[INFO] [stdout]    |                              ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -         self.contents.insert((y + 1), rest);
[INFO] [stdout] 45 +         self.contents.insert(y + 1, rest);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `splice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/buffer.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 self.contents[y].splice(offset..(offset+grapheme.len()), "");
[INFO] [stdout]    |                                  ^^^^^^ help: there is an associated function with a similar name: `split`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `king` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "de4e65b961b1b94b589690bdf4aa9ea390ae68c091b949554e28b07c3c853537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4e65b961b1b94b589690bdf4aa9ea390ae68c091b949554e28b07c3c853537", kill_on_drop: false }`
[INFO] [stdout] de4e65b961b1b94b589690bdf4aa9ea390ae68c091b949554e28b07c3c853537