[INFO] cloning repository https://github.com/DennisMuturi-prog/text_editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DennisMuturi-prog/text_editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDennisMuturi-prog%2Ftext_editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDennisMuturi-prog%2Ftext_editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc159647f9a862eb941bab16ede23a0813ab9c44
[INFO] checking DennisMuturi-prog/text_editor against master#f2c70877a7dbc51cd98e2d5d25209b24d4a586d5 for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDennisMuturi-prog%2Ftext_editor" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DennisMuturi-prog/text_editor
[INFO] finished tweaking git repo https://github.com/DennisMuturi-prog/text_editor
[INFO] tweaked toml for git repo https://github.com/DennisMuturi-prog/text_editor written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DennisMuturi-prog/text_editor on toolchain f2c70877a7dbc51cd98e2d5d25209b24d4a586d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DennisMuturi-prog/text_editor 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" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff9a1e17a21c22f57728fbe6152c4aca6ce4374eccdf1141a3c2e0223a933ea5
[INFO] running `Command { std: "docker" "start" "-a" "ff9a1e17a21c22f57728fbe6152c4aca6ce4374eccdf1141a3c2e0223a933ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff9a1e17a21c22f57728fbe6152c4aca6ce4374eccdf1141a3c2e0223a933ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff9a1e17a21c22f57728fbe6152c4aca6ce4374eccdf1141a3c2e0223a933ea5", kill_on_drop: false }`
[INFO] [stdout] ff9a1e17a21c22f57728fbe6152c4aca6ce4374eccdf1141a3c2e0223a933ea5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e28cb5429d250a35a4742a0b85abd88dc4679817ff8933e2ad0d9a7eb4fbee1a
[INFO] running `Command { std: "docker" "start" "-a" "e28cb5429d250a35a4742a0b85abd88dc4679817ff8933e2ad0d9a7eb4fbee1a", kill_on_drop: false }`
[INFO] [stderr]     Checking text_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/rope.rs:266:17
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn rebalance()->Box<Node>{
[INFO] [stdout]     |    ---------    ^^^^^^^^^ expected `Box<Node>`, found `()`
[INFO] [stdout]     |    |
[INFO] [stdout]     |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<Node>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/rope.rs:266:17
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn rebalance()->Box<Node>{
[INFO] [stdout]     |    ---------    ^^^^^^^^^ expected `Box<Node>`, found `()`
[INFO] [stdout]     |    |
[INFO] [stdout]     |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<Node>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `text_editor` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `text_editor` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e28cb5429d250a35a4742a0b85abd88dc4679817ff8933e2ad0d9a7eb4fbee1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28cb5429d250a35a4742a0b85abd88dc4679817ff8933e2ad0d9a7eb4fbee1a", kill_on_drop: false }`
[INFO] [stdout] e28cb5429d250a35a4742a0b85abd88dc4679817ff8933e2ad0d9a7eb4fbee1a
