[INFO] cloning repository https://github.com/fqian1/closest-pair
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fqian1/closest-pair" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffqian1%2Fclosest-pair", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffqian1%2Fclosest-pair'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bcc4fb9fdf74288ca17e4545ec2b352e34a648d
[INFO] testing fqian1/closest-pair against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffqian1%2Fclosest-pair" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fqian1/closest-pair
[INFO] finished tweaking git repo https://github.com/fqian1/closest-pair
[INFO] tweaked toml for git repo https://github.com/fqian1/closest-pair written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fqian1/closest-pair on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fqian1/closest-pair 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5adbf39f8cf4ed409a6cab9fdfda5fb089fc5908b95bc49f7a6eeffc2601113b
[INFO] running `Command { std: "docker" "start" "-a" "5adbf39f8cf4ed409a6cab9fdfda5fb089fc5908b95bc49f7a6eeffc2601113b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5adbf39f8cf4ed409a6cab9fdfda5fb089fc5908b95bc49f7a6eeffc2601113b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5adbf39f8cf4ed409a6cab9fdfda5fb089fc5908b95bc49f7a6eeffc2601113b", kill_on_drop: false }`
[INFO] [stdout] 5adbf39f8cf4ed409a6cab9fdfda5fb089fc5908b95bc49f7a6eeffc2601113b
[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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1c6e82bc61505822b9f61cf91d425874b9d1cd82b365267fe561418aaf88abe8
[INFO] running `Command { std: "docker" "start" "-a" "1c6e82bc61505822b9f61cf91d425874b9d1cd82b365267fe561418aaf88abe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling closest_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |     merge(merge_sort(left), merge_sort(right));
[INFO] [stdout]    |           ---------- ^^^^ expected `&mut Vec<(f32, f32)>`, found `&mut [(f32, f32)]`
[INFO] [stdout]    |           |
[INFO] [stdout]    |           arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Vec<(f32, f32)>`
[INFO] [stdout]               found mutable reference `&mut [(f32, f32)]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn merge_sort(points: &mut Vec<(f32, f32)>) -> &mut Vec<(f32, f32)> {
[INFO] [stdout]    |    ^^^^^^^^^^ ----------------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:40:40
[INFO] [stdout]    |
[INFO] [stdout] 40 |     merge(merge_sort(left), merge_sort(right));
[INFO] [stdout]    |                             ---------- ^^^^^ expected `&mut Vec<(f32, f32)>`, found `&mut [(f32, f32)]`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Vec<(f32, f32)>`
[INFO] [stdout]               found mutable reference `&mut [(f32, f32)]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn merge_sort(points: &mut Vec<(f32, f32)>) -> &mut Vec<(f32, f32)> {
[INFO] [stdout]    |    ^^^^^^^^^^ ----------------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `closest_pair` (bin "closest_pair") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1c6e82bc61505822b9f61cf91d425874b9d1cd82b365267fe561418aaf88abe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6e82bc61505822b9f61cf91d425874b9d1cd82b365267fe561418aaf88abe8", kill_on_drop: false }`
[INFO] [stdout] 1c6e82bc61505822b9f61cf91d425874b9d1cd82b365267fe561418aaf88abe8