[INFO] cloning repository https://github.com/TheCheesyWiggle/Mergesort-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheCheesyWiggle/Mergesort-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCheesyWiggle%2FMergesort-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCheesyWiggle%2FMergesort-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2538bdb239e59c162594bc5b8bdc0f165ad4c11e
[INFO] testing TheCheesyWiggle/Mergesort-Rust against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCheesyWiggle%2FMergesort-Rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheCheesyWiggle/Mergesort-Rust on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheCheesyWiggle/Mergesort-Rust
[INFO] finished tweaking git repo https://github.com/TheCheesyWiggle/Mergesort-Rust
[INFO] tweaked toml for git repo https://github.com/TheCheesyWiggle/Mergesort-Rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TheCheesyWiggle/Mergesort-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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 811a5d68b0d1cc39f48377bc67ae35a8db2f2ee94fb5c21f42f635e42d154adb
[INFO] running `Command { std: "docker" "start" "-a" "811a5d68b0d1cc39f48377bc67ae35a8db2f2ee94fb5c21f42f635e42d154adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "811a5d68b0d1cc39f48377bc67ae35a8db2f2ee94fb5c21f42f635e42d154adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "811a5d68b0d1cc39f48377bc67ae35a8db2f2ee94fb5c21f42f635e42d154adb", kill_on_drop: false }`
[INFO] [stdout] 811a5d68b0d1cc39f48377bc67ae35a8db2f2ee94fb5c21f42f635e42d154adb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7e08de45ec1adf054919f1682f1b87fff98ea6be0a4ee6a490de701c0b67fc6
[INFO] running `Command { std: "docker" "start" "-a" "a7e08de45ec1adf054919f1682f1b87fff98ea6be0a4ee6a490de701c0b67fc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling merge_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the type `[i32]` cannot be indexed by `&mut i32`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         array[z] == rand::random();
[INFO] [stdout]   |               ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `SliceIndex<[i32]>` is not implemented for `&mut i32`
[INFO] [stdout]   = help: the trait `SliceIndex<[T]>` is implemented for `usize`
[INFO] [stdout]   = note: required for `[i32]` to implement `Index<&mut i32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let &mut left = [mid..];
[INFO] [stdout]    |         ^^^^^^^^^   ------- this expression has type `[RangeFrom<usize>; 1]`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         expected `[RangeFrom<usize>; 1]`, found `&mut _`
[INFO] [stdout]    |         help: to declare a mutable variable use: `mut left`
[INFO] [stdout]    |
[INFO] [stdout]    = note:          expected array `[RangeFrom<usize>; 1]`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let &mut right = [..mid];
[INFO] [stdout]    |         ^^^^^^^^^^   ------- this expression has type `[RangeTo<usize>; 1]`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         expected `[RangeTo<usize>; 1]`, found `&mut _`
[INFO] [stdout]    |         help: to declare a mutable variable use: `mut right`
[INFO] [stdout]    |
[INFO] [stdout]    = note:          expected array `[RangeTo<usize>; 1]`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `merge_sort` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "a7e08de45ec1adf054919f1682f1b87fff98ea6be0a4ee6a490de701c0b67fc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e08de45ec1adf054919f1682f1b87fff98ea6be0a4ee6a490de701c0b67fc6", kill_on_drop: false }`
[INFO] [stdout] a7e08de45ec1adf054919f1682f1b87fff98ea6be0a4ee6a490de701c0b67fc6
